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threedogs
3rd February 2015, 03:05 PM
After info on the pros and cons of fitting a turbo beanie, I think it would be better for the AUX
battery ,keeping down the under bonnet temps,
does it alter EGTs at all and what about long term use can it harm the turbo at all

http://www.ebay.com.au/itm/130793093894?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649

Rip'n'Shred
3rd February 2015, 04:20 PM
I've thought about one for a while too. I'll be following this.


The only negative that I am aware of is one instance an oil leak saturated the beanie which eventually caught on fire and wasn't able to be extinguished.

mudski
3rd February 2015, 04:49 PM
Did you end up finding out what size you need? I could see it raising the EGT's, but only ever so slightly because the turbo would be hotter with a beanie on its head. While it would help with under bonnet temps I think the OEM metal shroud does better than nothing.
If your worried about the aux battery, I would make a heat shield for that instead.
Did you know that Nissan made a plastic cover for the batteries and it had an air ducting tube running from the inner guard to the cover? Been thinking of getting one for my Aux battery and then covering it in a heat reflective something or other....

Hodge
3rd February 2015, 06:19 PM
Did you know that Nissan made a plastic cover for the batteries and it had an air ducting tube running from the inner guard to the cover? Been thinking of getting one for my Aux battery and then covering it in a heat reflective something or other....

Do you know how long it took me to figure out what exactly that tube does ??? lol

As for the main topic...
I don't know about this. I mean, this beanie thing will just retard the heat dissipation from the turbo, making the turbo even hotter hence higher EGT's ??

megatexture
3rd February 2015, 08:24 PM
I'd be too scared it will cook the turbo and you would have to have a turbo timer but IMO a battery is cheeper to replace than a turbo

Sherro
3rd February 2015, 09:01 PM
I've run a turbo beanie for a couple of years with no drama and i was doing 11 and 12 hour runs with only fuel and food stops now i've taken the beanie off the schwitzer and put it on the kinu 18g.

threedogs
4th February 2015, 07:46 AM
Did you end up finding out what size you need? I could see it raising the EGT's, but only ever so slightly because the turbo would be hotter with a beanie on its head. While it would help with under bonnet temps I think the OEM metal shroud does better than nothing.
If your worried about the aux battery, I would make a heat shield for that instead.
Did you know that Nissan made a plastic cover for the batteries and it had an air ducting tube running from the inner guard to the cover? Been thinking of getting one for my Aux battery and then covering it in a heat reflective something or other....

That cover doesnt fit the bigger batteries, I have one,plus no good if snorkle fitted no tube
as for the size as the turbo is only small I think
the 150mm x 50mm one will fit about the $50 depending

http://www.ebay.com.au/itm/400770282299?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649

@ Sherro any down side using one on a daily driver ??

threedogs
4th February 2015, 10:03 AM
Just been reading some comments from the WRX guys and the SRT Dodge boys.
seems trapping heat in a turbine is good as hot gas spools faster
As for trapping heat they say turbos are designed to glow white hot
and Id guess many here dont even see their turbos orange, me included
to make the most of it they recommend ceramic coating one side of the turbo
and wrap the dump pipe in exhaust bandage.
one guy has had one beanie and 4 turbos so they are built to last

More reading tells me its Thermodynamic meaning the more heat
you retain in the system the more energy you develop,
Anyway after what the WRX guys say I brought one
might even wrap the dump pipe after reading about Thermodynamics

nissannewby
4th February 2015, 10:45 AM
Any heat lost to material is lost energy. A beanie helps but it's not quite as effective as ceramic coating. I would do both if finances allow.

As for turbos glowing this is not great. Yes they can deal with it but shit will eventually melt. Glowing turbine housings mean high heat which mean high pressure pre turbo so again you are losing that energy as all it is doing is heating up your manifold/turbine housing.

threedogs
4th February 2015, 11:02 AM
Any heat lost to material is lost energy. A beanie helps but it's not quite as effective as ceramic coating. I would do both if finances allow.

As for turbos glowing this is not great. Yes they can deal with it but shit will eventually melt. Glowing turbine housings mean high heat which mean high pressure pre turbo so again you are losing that energy as all it is doing is heating up your manifold/turbine housing.

was only saying that as no one here would get temps that high I would think,
it would only happen under high rpm race conditions I would imagine.

I read somewhere of a DIY high temp coating but cant find it Doh

threedogs
7th February 2015, 01:59 PM
well the "beanie " is fitted and upon further reading cant wait to try it out.
From what Ive read I can do no harm whats so ever , and I should get better spool rate and less lag
so thats got to be good. I wont be fitting a turbo timer IMO another wank factor gizmo.
Im not expecting any power gains ,just efficiency via thermal dynamics
easy enough and cheap enough if things go wrong

Further reading tells me it saves head gasket problems on turbo engines
http://ptpturboblankets.com/why_turbo_blankets.php

mudski
7th February 2015, 10:43 PM
well the "beanie " is fitted and upon further reading cant wait to try it out.
From what Ive read I can do no harm whats so ever , and I should get better spool rate and less lag
so thats got to be good. I wont be fitting a turbo timer IMO another wank factor gizmo.
Im not expecting any power gains ,just efficiency via thermal dynamics
easy enough and cheap enough if things go wrong

Further reading tells me it saves head gasket problems on turbo engines
http://ptpturboblankets.com/why_turbo_blankets.php

Be good to see the results/ findings but I fail to see how you will get better spool rate and less lag just from a beanie. But only good will come from it i suppose if people fit them.
As for the battery cover thingo's John. They do actually fit the larger 15 plate N70ZZ sized batteries as my Patrol had them both when I bought it and I took them off and I dunno where they are now.

threedogs
12th February 2015, 09:45 AM
@ Mudski its all about thermal dynamics pretty simple in operation as it uses heat to generate enery, some thing like that'
Anyway went for a drive into the city 35c day. My EGTs were 200 cruising and at one stage went down to 150C.
My Patrol has never had figures of 150C, IMHO It drives smoother I idle a little longer not much then turn it off.
Its not a race engine so I dont think I would be generating very high temps, I did re check my EGT gauge after a few mins to see if temps went up
but in fact they were down and by a long way. They also say it is great for not allowing a hot spot along the head,
I like it the motor feels better ,more responsive ,smoother, I'll put a pic here later.
Only took 5 mins to install, from the ppl Ive spoken to it cant do any harm, might be like chicken soup lol

Throbbinhood
12th February 2015, 09:57 AM
I wont be fitting a turbo timer IMO another wank factor gizmo.

Not too sure on what the workings of patrol turbo's, but allowing turbo's to cool before shutting off is important. Whether you use a turbo timer, or just sit in the car, or even just keep it off boost for the last few minutes of a drive, I wouldn't recommend giving it some boost and then just shutting the motor off, even moreso with a beanie.

Bigcol
12th February 2015, 10:10 AM
Not too sure on what the workings of patrol turbo's, but allowing turbo's to cool before shutting off is important. Whether you use a turbo timer, or just sit in the car, or even just keep it off boost for the last few minutes of a drive, I wouldn't recommend giving it some boost and then just shutting the motor off, even moreso with a beanie.

I went to fit a Turbo timer ages ago - HSK or some bloody thing - came with adapters to fit Nissan Patrol GU
yeah right
never fitted it, as you cannot get the connectors in Aust (at the time) a waste of money and time to partially fit

if you have been boosting while driving, by the time you slow down (in my case) EGT's are below 150-200 anyway - so no hotter than non turbo'd exhaust


I agree - wank factor only

unless your driving a Scania or something

beanie looks like a good idea

threedogs
12th February 2015, 10:45 AM
from what Ive been told it makes the air inside the turbo more efficient. Isn't that the big picture efficiency
there is no way my driving style will get my motor "race hot" . Plus I never rev then shut off any motor,
i only idle for an extra min. to stabilize temps then shut it off

lhurley
12th February 2015, 06:16 PM
I went to fit a Turbo timer ages ago - HSK or some bloody thing - came with adapters to fit Nissan Patrol GU
yeah right
never fitted it, as you cannot get the connectors in Aust (at the time) a waste of money and time to partially fit

if you have been boosting while driving, by the time you slow down (in my case) EGT's are below 150-200 anyway - so no hotter than non turbo'd exhaust


I agree - wank factor only

unless your driving a Scania or something

beanie looks like a good idea


As much as a turbo timer or sitting idling is to reduce egts/turbo temps, it also helps the turbo last longer. It helps save the bearing because if you think about how fast a turbo is spinning whilst on boost, it takes a little while to stop, or slow down. So if your turbo is spinning flat strap and then turn the car off, stopping the oil pump, the turbo is still spinning basically dry, with no or very little oil.

I do agree with you about how much of a wank factor a turbo timer is.

Heavyweight
26th February 2015, 11:41 AM
[QUOTE=threedogs;578467]well the "beanie " is fitted and upon further reading cant wait to try it out.
From what Ive read I can do no harm whats so ever , and I should get better spool rate and less lag
so thats got to be good. I wont be fitting a turbo timer IMO another wank factor gizmo.
Im not expecting any power gains ,just efficiency via thermal dynamics
easy enough and cheap enough if things go wrong


Was the beanie fitted under the heat shield?, or was the heatshield removed when you fitted a larger exhaust...

I ask as a local mechanic said the heat shield would be removed and not replaced after fitting a 3 inch system...was wanting to keep heat away from Aux battery "when I get around to fitting it"

mudski
26th February 2015, 12:45 PM
[QUOTE=threedogs;578467]well the "beanie " is fitted and upon further reading cant wait to try it out.
From what Ive read I can do no harm whats so ever , and I should get better spool rate and less lag
so thats got to be good. I wont be fitting a turbo timer IMO another wank factor gizmo.
Im not expecting any power gains ,just efficiency via thermal dynamics
easy enough and cheap enough if things go wrong


Was the beanie fitted under the heat shield?, or was the heatshield removed when you fitted a larger exhaust...

I ask as a local mechanic said the heat shield would be removed and not replaced after fitting a 3 inch system...was wanting to keep heat away from Aux battery "when I get around to fitting it"

The heatshield still fits with a 3inch pipe. Easily. But with a beanie on the shield wouldnt go back on I think.

Hows the beanie John? Are the engine bay temps lower too you think?

threedogs
26th February 2015, 12:51 PM
Goooooood question, no idea if the heat sheild is there or not lol
it was a bit fiddly to fit using the springs provided so I used some stainless
lock wire.. As it was so easy to fit I would say the heat sheild is removed,
fits like a glove you can place your hand on it when the motor is running.
The lowest my EGTs have been since fitting it is 150C, never did that before,
I just idle a little longer if I've been giving it a few berries.

EDIT My aux battery is basically cool now compared to being hot before
that with a slight increase in efficiency, best $44 spent so far,
I can drive with the OD off and EGTs will never go above 200c.
Yet to try towing but wont be too far away

mudski
26th February 2015, 09:59 PM
Goooooood question, no idea if the heat sheild is there or not lol
it was a bit fiddly to fit using the springs provided so I used some stainless
lock wire.. As it was so easy to fit I would say the heat sheild is removed,
fits like a glove you can place your hand on it when the motor is running.
The lowest my EGTs have been since fitting it is 150C, never did that before,
I just idle a little longer if I've been giving it a few berries.

EDIT My aux battery is basically cool now compared to being hot before
that with a slight increase in efficiency, best $44 spent so far,
I can drive with the OD off and EGTs will never go above 200c.
Yet to try towing but wont be too far away

You've lost me John. You don't know if you have the heat shield on or off? Also what size was the beanie you got?

HuskyInAuz
26th February 2015, 10:03 PM
My turbo timer works great. IMHO they are a good idea as when I was flying I ALWAYS idled the turbo's for at least 2 minutes post landing taxi and parked. True, the engines were petrol but boy did they glow at night! We don't just shut off the tractors (all but one turbo'd) either, let them idle for a few minutes before shutting down.

Could well be a 'wisetale' or carry over from father but so far no issues with installed turbo's ... only issue is waiting for the UFI 18g ...

Winnie
27th February 2015, 05:48 AM
My turbo timer works great. IMHO they are a good idea as when I was flying I ALWAYS idled the turbo's for at least 2 minutes post landing taxi and parked. True, the engines were petrol but boy did they glow at night! We don't just shut off the tractors (all but one turbo'd) either, let them idle for a few minutes before shutting down.

Could well be a 'wisetale' or carry over from father but so far no issues with installed turbo's ... only issue is waiting for the UFI 18g ...

No mate no wives tale. Your turbo timer does automatically what other people do manually.

threedogs
27th February 2015, 08:18 AM
You've lost me John. You don't know if you have the heat shield on or off? Also what size was the beanie you got?

I'd say its off as I had a new dump pipe fitted its the smallest beanie I'll check what size for you.
cerntainly keeps the aux battery cooler, just for that reason alone ,it must be good.

http://www.ebay.com.au/itm/400770282299?_trksid=p2057872.m2749.l2648&ssPageName=STRK%3AMEBIDX%3AIT



As for a light aircraft engine V a ZD30 I would think you would have a shut down protcol for engine longevity

Cuppa
27th February 2015, 08:26 AM
Re. Turbo timers. I considered getting one early in the piece but decided against it. Too dangerous! It was a turbo timer which killed Malcolm Douglas when the vehicle was accidentally knocked into gear, & I’ve since read of several other similar close shaves. After fitting an EGT gauge it’s easy enough to ensure the temp is low enough before turning off, & most times the temp is down by the time you’ve slowed down, pulled over & parked anyway.

threedogs
27th February 2015, 08:35 AM
Re. Turbo timers. I considered getting one early in the piece but decided against it. Too dangerous! It was a turbo timer which killed Malcolm Douglas when the vehicle was accidentally knocked into gear, & I’ve since read of several other similar close shaves. After fitting an EGT gauge it’s easy enough to ensure the temp is low enough before turning off, & most times the temp is down by the time you’ve slowed down, pulled over & parked anyway.

Wasnt the 4x4 in neutral when he got out to open a gate ,it is thought his dog tried to get out knocking the troopy in to gear pinning him against a tree, just saying. This guy was a hero to me

Not sure a turbo timer was involved, no mention of it


http://www.watoday.com.au/wa-news/malcolm-douglas-killed-in-car-crash-20100923-15nt7.html

Sir Roofy
27th February 2015, 08:45 AM
I'd say its off as I had a new dump pipe fitted its the smallest beanie I'll check what size for you.
cerntainly keeps the aux battery cooler, just for that reason alone ,it must be good.

http://www.ebay.com.au/itm/400770282299?_trksid=p2057872.m2749.l2648&ssPageName=STRK%3AMEBIDX%3AIT



As for a light aircraft engine V a ZD30 I would think you would have a shut down protcol for engine longevity

hey john have taken the truck for a long run up the hume or tried any hill runs or just flat running around the city
take a run up to Seymour and back and see what the temps are like im interested in this

threedogs
27th February 2015, 10:05 AM
hey john have taken the truck for a long run up the hume or tried any hill runs or just flat running around the city
take a run up to Seymour and back and see what the temps are like im interested in this

Ill take it for a blast up to Tallarook tomorrow if all goes well, need to charge the batteries
As it is I cant get higher than 450c, maybe thats more to do with boost
but thats not towing,,,, big difference,
It keeps the heat in and heat is energy

Sir Roofy
27th February 2015, 10:59 AM
Ill take it for a blast up to Tallarook tomorrow if all goes well, need to charge the batteries
As it is I cant get higher than 450c, maybe thats more to do with boost
but thats not towing,,,, big difference,
It keeps the heat in and heat is energy

if your up to it mate would be good to see what it does on the open road

mudski
27th February 2015, 05:28 PM
if your up to it mate would be good to see what it does on the open road

Theres a decent bit of open road between John and Tallarook. I'd love to see the difference in EGT's if someone has a probe in the manifold, rather than the dump pipe. This may give a more accurate result. John ya basterd! Ya got me thinking about one of these now!

threedogs
27th February 2015, 05:32 PM
Theres a decent bit of open road between John and Tallarook. I'd love to see the difference in EGT's if someone has a probe in the manifold, rather than the dump pipe. This may give a more accurate result. John ya basterd! Ya got me thinking about one of these now!

Read up on thermal dynamics that what convinced me, plus we don't get anyway near race temps.
You will notice a difference. heat =energy so you contain the heat it produces more energy=

mudski
27th February 2015, 05:38 PM
I. Must...Resist!

threedogs
27th February 2015, 05:42 PM
I. Must...Resist!

You can do it,,, only $44,,, go on,,, I DARE YOU lol

Then again why waste money when your changing motors at some stage

mudski
27th February 2015, 05:46 PM
You can do it,,, only $44,,, go on,,, I DARE YOU lol

Then again why waste money when your changing motors at some stage

Thats my thinking, but at the rate I'm going with the TD, I'll be old and grey. Well, I'm grey already...

threedogs
27th February 2015, 05:50 PM
But thats $44 that could go towards it, give it a miss and follow the dream

Sir Roofy
27th February 2015, 07:51 PM
i. Must...resist!

no you wont your just as interested in this thing as i am

Hodge
27th February 2015, 08:08 PM
You will notice a difference. heat =energy so you contain the heat it produces more energy=

Wait what ... !? Contain even more heat on a zd30 ?? Generally you're trying to off load heat ASAP. Am I missing something here.

Sent from my S4 using Forum Runner

mudski
27th February 2015, 08:56 PM
no you wont your just as interested in this thing as i am

Yes I am old mate. But I must resist. I must.

AB
27th February 2015, 08:59 PM
Ok folks I am way too late on this convo and can't be bothered reading through all of this but wouldn't you be pushing more heat through the turbo with a snugly blanket?

Are you blokes just trying to reduce engine bay temps,

Last minute question????

mudski
27th February 2015, 09:21 PM
Ok folks I am way too late on this convo and can't be bothered reading through all of this but wouldn't you be pushing more heat through the turbo with a snugly blanket?

Are you blokes just trying to reduce engine bay temps,

Last minute question????

This is what I'm trying to get my head around myself.

Winnie
27th February 2015, 09:45 PM
Ok folks I am way too late on this convo and can't be bothered reading through all of this but wouldn't you be pushing more heat through the turbo with a snugly blanket?

Are you blokes just trying to reduce engine bay temps,

Last minute question????

Not good for your turbo really

megatexture
28th February 2015, 12:17 AM
I'm with you Winnie, cooler bay at the cost of cooking your turbo.

threedogs
28th February 2015, 07:10 AM
A few guys here run them with no problems one on a 6.5 chev and the other a 3ltr I think.
and thats over a few years,could be like chicken soup lol.
And temps under normal driving conditions would be very low compared to any race application
which few here would reach if ever. lol

Hodge
28th February 2015, 08:03 AM
And temps under normal driving conditions would be very low compared to any race application
which few here would reach if ever. lol

So if they're very low, why put one on?
This got me curious last night and done some reading and googling, and yeah in very extreme cases of racing heat they wrap them up to keep them nice and warm.
If it's to keep aux battery away from the oven, maybe look at alternatives.
But wrapping up a turbo under an already grenade prone bonnet, this is just asking for issues. The Garrets they run are oil cooled, and thus oil circulates through the turbo. Keeping the turbo hotter = hotter oil, through the engine too. Just my understanding and my 2 cents.

megatexture
28th February 2015, 08:16 AM
I can't see how this can be good for the turbo regardless of race application or not it must be shortening its life and I know I'd rather pay for a new battery over a cooked turbo any day,

nissannewby
28th February 2015, 08:47 AM
Not good for your turbo really

They don't really effect turbo life. Basically the beanie insulates the turbine housing there for the heat stays in the gas, which as 3dogs has said heat = energy and this is how the turbo does its work, so the heat doesn't get into the material as easy. Now if the heat is staying in the gas and not being soaked up by the turbo housing and cartridge then the oil will be unaffected.

These are not a bad idea. And as I said earlier I would prefer to ceramic coat and then apply a beanie.

nissannewby
28th February 2015, 08:50 AM
Ok folks I am way too late on this convo and can't be bothered reading through all of this but wouldn't you be pushing more heat through the turbo with a snugly blanket?

Are you blokes just trying to reduce engine bay temps,

Last minute question????

This is what you want (to a point obviously). If you lose energy (heat) to material then that is energy lost that can drive our turbine. Now the effects might not be able to be felt on the zd but this can improve response from the turbo.

threedogs
28th February 2015, 09:58 AM
have a read it may explain a bit more like NN said

http://sti.wigglit.com/wordpress/?p=689

I would ceramic coat but that means being off the road,
had great results on other 4x4

Plus it may eliminate hot spots along the manifold
Thermal dynamics

megatexture
28th February 2015, 11:42 AM
They don't really effect turbo life. Basically the beanie insulates the turbine housing there for the heat stays in the gas, which as 3dogs has said heat = energy and this is how the turbo does its work, so the heat doesn't get into the material as easy. Now if the heat is staying in the gas and not being soaked up by the turbo housing and cartridge then the oil will be unaffected.

These are not a bad idea. And as I said earlier I would prefer to ceramic coat and then apply a beanie.

Your mate at auto xperts when I asked his opinion on them said not to put one on unless I wanted a cooked turbo.

taslucas
28th February 2015, 01:05 PM
Why do they cool them with oil or water if they operate better hot?

Isnt the only reason they are hot is because they are fed by exhaust so in theory if you had forced cold air feeding it instead hot exhaust the whole thing would run even better?

I'm definitely no expert!

But is this right?
Heat is energy but the heat energy is a by-product of the combustion process and during combustion the energy that's turned into heat is lost energy as it's not turned back into kinetic energy. It's the pressure, or kinetic energy, of the exhaust being forced out of the engine that spins the turbine and continues to be kinetic energy which forces the air in.

Ben-e-boy
28th February 2015, 03:44 PM
Why do they cool them with oil or water if they operate better hot?

Isnt the only reason they are hot is because they are fed by exhaust so in theory if you had forced cold air feeding it instead hot exhaust the whole thing would run even better?

I'm definitely no expert!

But is this right?
Heat is energy but the heat energy is a by-product of the combustion process and during combustion the energy that's turned into heat is lost energy as it's not turned back into kinetic energy. It's the pressure, or kinetic energy, of the exhaust being forced out of the engine that spins the turbine and continues to be kinetic energy which forces the air in.

Oil and coolant cooling are for the moving parts,

So for the heat in the turbine gasses..... you need fuel to make the heat, you need the heat to make the boost, so in theory, if you can keep in some heat from combustion, you should be able to make the same boost responce with less fuel.

Thats why I have ceramic coated so much in order to somewhat test the theory

threedogs
28th February 2015, 04:01 PM
Oil and coolant cooling are for the moving parts,

So for the heat in the turbine gasses..... you need fuel to make the heat, you need the heat to make the boost, so in theory, if you can keep in some heat from combustion, you should be able to make the same boost responce with less fuel.

Thats why I have ceramic coated so much in order to somewhat test the theory

same thing its all about thermal dynamics with heat equalling energy.
take the beanie away and replace it with ceramic coating and every one goes wow great idea

Sir Roofy
28th February 2015, 04:36 PM
same thing its all about thermal dynamics with heat equalling energy.
Take the beanie away and replace it with ceramic coating and every one goes wow great idea

maybe you,l be up for it sunday mate be interesting how you read your temps

taslucas
1st March 2015, 10:05 AM
I'm still dumb Benny, how does the temperature of the exhaust gas make the turbine spin faster?

Isn't it the speed/volume of the exhaust gas exiting the engine, therefore the speed it turns the turbo impeller, that controls the speed/volume of the air getting pushed in to create boost?

threedogs
1st March 2015, 10:47 AM
Another reason my temps might be down could be because my IC is not being used as a heat sink.
Just a thought,,,,
They are not down heaps but noticably lower than before.
And you can feel the difference again not a huge amount,
but you can feel it

Ben-e-boy
1st March 2015, 03:32 PM
I'm still dumb Benny, how does the temperature of the exhaust gas make the turbine spin faster?

Isn't it the speed/volume of the exhaust gas exiting the engine, therefore the speed it turns the turbo impeller, that controls the speed/volume of the air getting pushed in to create boost?

Yeah it is speed and volume, and you get that from combustion and the heat energy from that. If you inject small amounts of fuel and get a smaller bang you arnt going that energy or volume or velocity to spool it.
Too much fuel and you'll end up quenching the combustion and going backwards.

Thats how I understand it

BigRAWesty
1st March 2015, 04:00 PM
Just thinking from a fluids point of view.
The the volume of hot air exits the engine to turbo.
As soon as its is in the turbo you get heat sync into the turbo and atmosphere. While this is happen the air is cooling, and cooling the air reduces its volume.

So what the beanie does is it retains the heat threw to the exhaust, where it can start condensing as it likes.
Seeing the heat loss is less threw the turbo it means more volume threw it, which means more efficiency.

Td you may be seeing lower engine bay temps, so a lower ic temp over all which means it can work more effective, thus more poke.

threedogs
1st March 2015, 04:04 PM
Yeah its not neck snapping but it is noticable be it smoother less lag I'm not sure.
still need to go for a long drive when I can but has to be better than before IMO

Whilst searching for info about the beanie saw one guy make
an awesome heat shield using half of a polished stainless steel pot.
It fit over his turbo perfectly

nissannewby
1st March 2015, 07:30 PM
I'm still dumb Benny, how does the temperature of the exhaust gas make the turbine spin faster?

Isn't it the speed/volume of the exhaust gas exiting the engine, therefore the speed it turns the turbo impeller, that controls the speed/volume of the air getting pushed in to create boost?

Heat = pressure. Pressure differential is what helps the turbo work. So if you lose heat your are losing energy hence the turbo cannot work as efficiently.

taslucas
2nd March 2015, 07:07 AM
So if you had two turbos hooked up on a bench and you fed them both with exactly the same volume and speed of air (say from a big compressor or something) but one was being fed hot air and the other cold air, the one being fed hot air would be pushing more out its output side?

mudski
2nd March 2015, 08:24 AM
So if you had two turbos hooked up on a bench and you fed them both with exactly the same volume and speed of air (say from a big compressor or something) but one was being fed hot air and the other cold air, the one being fed hot air would be pushing more out its output side?

I would say yes it would. As hot air expands, so in theory there would be more volume being pushed though because the air has expanded...

threedogs
5th March 2015, 06:22 PM
@ Roofy just went for a quick blast up to Melton 22ks and sitting on 100kph at 2000 rpm my EGTs were 300 c
so very happy with that, boost was 10 psi

Warehouseno27
9th March 2015, 05:35 PM
Interesting topic.. Have thought of using one before but never bought one. Will do some more reading.

threedogs
13th March 2015, 11:25 AM
Interesting topic.. Have thought of using one before but never bought one. Will do some more reading.

Be interested in what you come up with.

taslucas
13th March 2015, 03:00 PM
Interesting topic.. Have thought of using one before but never bought one. Will do some more reading.




Be interested in what you come up with.

I'm interested in the interest

Clunk
13th March 2015, 03:01 PM
I'm interested in the interest

I'm interested that you're interested in the interest

Rip'n'Shred
14th March 2015, 01:48 PM
I've noticed lately all the later model Cat gear at work have beanies on the turbos and I don't think under hood temps would be a big deal as most are very well ventilated, so I've thought there must be something good about them. The manufacturer is working to increase efficiency and lower emissions on each new model. These turbos work really hard too. Can't remember the figures but I think they are around 30 to 50psi boost.

Rip'n'Shred
14th March 2015, 02:04 PM
Just done a quick search on google.

The turbo blanket for a particular model of cat engine is over $10,000 so I don't think they would have them for no reason.

Also found this




Designed for the single turbo found on the Cat 3406E and C-15 1994-2004, this high quality turbo blanket is easy to install. The blanket is designed to protect other components underneath the hood by reducing under hood temperatures. The blanket also keeps the exhaust side of the turbo hot, thus providing increased throttle response as hotter air exits quicker and spools the turbo faster . The turbo blanket also keeps the intake side of the turbo cooler allowing for denser air to enter the engine which contains more oxygen and gives a more complete burn inside the cylinder.

threedogs
14th March 2015, 03:00 PM
I dont run the engine cover and the main thing I noticed before I fitted the beanie was how hot the IC got.
now you can touch it. This morning I wrapped the inlet pipe on the IC to hopefully get lwer IC temps as well.

I read that bit you linked and thats why I brought it to try and make what I have more efficient

nipagu7
14th May 2016, 11:28 AM
so how is the turbo beanie holding up threedogs . i am thinking of getting one . does anyone know what size fits the commonrail motor turbo . and is there any issue with fitting around the variable vane actuator . when i put the 3" pipe on i could not get the heatsheild out . i am going to change the coolant soon , and if i remove the cabin heater flexible hoses i think i will have the room i need to get the heatsheild out . the beanie and some lagging around the top of the dump pipe would be easier to remove and work around .

threedogs
14th May 2016, 01:42 PM
Going fine not a single issue related to the Beanie,
I have noticed a big difference in the temp of my Aux battery
Much, much cooler than before, so very happy.
Ive also wrapped a few pipe/hoses in gold foil
to further keep the temps as low as I can get them

Kimbo63
14th May 2016, 02:59 PM
Check out this if any one are still interested
http://prosportgauges.com/heat-reducing-products.aspx

nipagu7
15th May 2016, 08:30 AM
thanks threedogs , good to know about the lower engine bay temps , i don't have a second battery ( yet ) , but i would think it would help the intercooler do it's job better . there are different size beanies , anyone know what size fits the commonrail motor turbo .

threedogs
15th May 2016, 05:13 PM
@ nipagu7 It was one of the smaller ones size 2 I think
Here you go ,I have a Di and its a perfect fit
http://www.ebay.com.au/itm/400770282299?ssPageName=STRK:MEWAX:IT&_trksid=p398 4.m1423.l2649&rmvSB=true
BA runs ones as well as a few others

nipagu7
16th May 2016, 11:57 AM
thanks threedogs . any problems fitting it around the vnt actuator , do you have to cut or modify it to fit ?

threedogs
13th December 2018, 01:33 PM
Heres an update or road report on those Turbo beanies, been 3 yrs now and not one issue.
its all about thermal dynamics keep the heat where it should be and thats inside the turbo
and dump pipe. I run a Trojan wet cell 115 ah AUX battery right next to the turbo and happy
to report no loss of liquid from the Aux battery at all so Im giving this one two thumbs up
Very pleased for a small outlet one of the better mods Ive done .

Brissieboy
13th December 2018, 05:16 PM
Hey threedogs, do you know if the one mentioned earlier and still available here
http://www.ebay.com.au/itm/400770282...649&rmvSB=true
will suit a GU Y61 3lilre? There is a quite large cowling around the turbo that would appear to prevent or at least hinder fitting.
I have a second battery in the usual spot and looking for ways to stop it getting so hot.

Tico_Y61
6th March 2019, 05:12 PM
Heres an update or road report on those Turbo beanies, been 3 yrs now and not one issue.
its all about thermal dynamics keep the heat where it should be and thats inside the turbo
and dump pipe. I run a Trojan wet cell 115 ah AUX battery right next to the turbo and happy
to report no loss of liquid from the Aux battery at all so Im giving this one two thumbs up
Very pleased for a small outlet one of the better mods Ive done .

Hey threedogs - I tried a T3 sized beanie but it's too big (wastegate actuator gets on the way). Any hints on what size to buy? GU with a stock turbo.

threedogs
11th March 2019, 01:01 PM
Cant remember where I got mine from, bit happening
all I know it was aT3