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Holy crap, I thought you were joking Matty, diesel&water:-) Had to look it up, Sir Harry Ricardo invented it for WWII dogfights and now safe in diesels!Quote:
Originally Posted by nissannewby
http://www.dieselarmy.com/engine-tec...nol-injection/
Cheers Matty :-)
Dollar for dollar will have better results than any intercooler.
Cheers Matty, looking forward to an attempt at trying to absorb your hard earned honest knowledge! Must say here, your 4.2TD work together with AB has truly blown me away mate!!! The Batty boys might be in the midst of who can oneday pop a donk first :-)Quote:
Originally Posted by nissannewby
That's the spirit lol..Quote:
Originally Posted by MB
The only down fall of water meth injection is its capacity..
A good intercooler ain't going anywhere..
But once the tank runs dry of water meth that's it..
So if your looking at remote trips etc it's probably not the best option.
Unless your willing to carry 100L of mix lol..
You can use water if you dont want to carry methanol. The water is what does most of the cooling. The methanol helps a bit but is a oxygenated fuel so just helps to add power and torqueQuote:
Originally Posted by bigguwesty
Yea you can. But still need a good quality if your doing remote trips..Quote:
Originally Posted by nissannewby
So imo, although it's an awesome setup I wouldn't rely on it for majority cooling..
For extra power thou for sure..
Quote:
Originally Posted by MB
It looks like mine may be one of the older ones.
The engine number ends in A0196 which I assume means Jan 1st 1996.
I've had it for a couple of weeks now and took it over Melbourne last weekend to pick up a 22ft caravan and bring it back to Adelaide.
It went like a dream, no hint of overheating, needle stayed below halfway the entire trip, and had no dramas towing.
It looks like the cooling system has been beefed up with a bigger radiator with dual fans on the front and a big single fan on the back and a 3 and a half inch exhaust all the way through.
It's a very comfortable ride and so far I am extremely happy with the purchase. Time may tell but thanks all for your advice.
The engine conversion was done in '09 and it's done 106 000 clicks since then.
Well,
My patrol is enroute to WA as we speak.
6.5 turbo within a week or two.
Stay tuned.
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G'day Rainsey, exciting times mate ! If it's not too rude to ask, how much are they asking for a 6.5+turbo these days? PM maybe if uncomfortable with a quote divulge I understand ! Was Auto options quoted too? Cheers mate !Quote:
Originally Posted by rainsey
More than happy to share.Quote:
Originally Posted by MB
$33k drive in drive out including front & rear diff gearing changes.
I stuck with my existing manual transmission, as much as I would like an auto.
Cheers Rainsey
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G'day Rainsey,
Just noticed on another thread that your beast sounds like it is back !
How is it mate, loving it :-) ?
Picked it up on Friday. Had to go down to Sydney to get it so had a bit of a drive to get home... Shaws transport shipped it back from Perth. I was going to remove my brush bars before I sent it over... Thank god I did not. The Brush bars now have flat spots either side and the drivers door has dents all over it ... This I'm not happy with ... Pay big bucks for transport but obviously no responsibility on their part. And the fine print states they take no responsibility for damage...
First immediate impression .. The sound is to die for... Friggin fantastic.
Second impression... Definitely not going to race any one off at the lights ... But heck... This is not what I need.
Third impression ... Torque... By the time I managed to hit the freeway .. Never got out of fifth. Absolutely fantastic.
Took me near to half an hour to get the engine up to temp.. But the EGT's ... Wow... My ZD30 on the hill up to Berowra.. I'd be hitting 550 degrees. With the 6.5... Only just hit 200.
Had a few teething probs with some wiring issues but managed to sort them out tonight. Spent the weekend stripping gear off to get the weight down so I can get my tare weight under 2504 kg for Rego.
I still have the old engine sitting on the back so tomorrow I will be dropping it off at Simms Metal to get rid of it. Once it's off I will get out and give it a good run.
So far ... I am pretty stoked. Do not think I am going to regret it at all.
Stay tuned.
Kindest regards
Rainey
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First fuel economy figures came in just driving around town, no towing.
13.8l/100 km.
About the same if not better from the original ZD30. Just goes to prove how crap the original 3 litre is on fuel.
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13.8 around town is extremely good... almost too good.
Be interesting to see if the figures stay there over a longer period.
G'day Rainsey,
That's gold mate! Agree with ET though, amazing L's used in start/stop city conditions!
I do need maths lessons;
(all 80L maintanks I believe?)
Our stock GU 3.0L made 600-650kms
Our GU 4.2TD with 3" makes around 550-600kms
My 6.5NA makes around 450 to max 550kms.
I'm sure it's the hilly highways and air lacking.
Please do keep us posted, we're all in this together, great song :-)
I totally agree. Did the maths 3 times. This was, as I said, the first fillup since getting the truck back. Put it this way, I will not be overly surprised if it was a one off. But as I said ... Stay tuned.Quote:
Originally Posted by the evil twin
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Interesting your comment re ' air lacking'. One thing I have noticed is this almost metallic sucking sound that I am assuming is the engine trying to drag every cubic mm of air out of a standard Safari snorkel.Quote:
Originally Posted by MB
Do you or anyone else following this post noticing the same?
Kindest regards
Rainsey
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Yep the sweet sound of the turbo sucking air
I wish I had that noise you lucky buggers ;-)
You can have a drive in my rig mark no problemo
Thanks Kimbo, that would be really appreciated mate !Quote:
Originally Posted by Kimbo63
no worries it will be good for you to compare with your truck mateQuote:
Originally Posted by MB
For sure mate, looking forward to arriving West soon :-)Quote:
Originally Posted by Kimbo63
O/k,
I took the truck down to the engineer in Sydney South West today to get the engine conversion and GVM upgrade all engineered.
Bit of freeway driving but a hell of a lot of bumper to bumper peek hour traffic ( a couple of hours worth ). Just filled up... 14.4l/100km.
This brings my average to 14.1 with a brand new tight engine. So this is still on par with my ZD30 engine.
I am over the moon. If this averages out as the norm, I will be no worse off fuel wise.
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Oh, also checked the odometer. It is 120meters out at 500km when measured against 2 GPS's.. Speedo is out to buggery but the odometer seems all but spot on so the mileage figures I am doing my economy figures on a re pretty accurate.
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Awesome fuel Rainsey, you gotta be happy with that mate :-)
Worthwhile I reckon getting a dyno report done now whilst it's all fresh so you could comparatively refer back to it say yearly and or after any future possible mods like exhausts/air intakes etc.. I've somehow lost mine I had done when first purchased the truck complete. To the best of my memory mine only came in just under 100kw and I think 350-400nm range being a non turbo.
Blokes have asked me why I love the 6.5 so much with numbers like that from such a big donk.
Quite simply for me it all boils down to the suited personal usage of its massive inertia with all that yanky steel chugging around at low RPM's.
As a stupid crank stressing test I can be idling at 500rpm, on flat ground, drop it into 3rd gear, release clutch without accelator and she'll take off, recovering to idle in a few metres.
(I'm running 35's and 4.3 diffs currently which I believe is one step lower than most Brunswick setups of 33's and 3.9s)
Very hard to stall these things :-) !
Ha ha,
Yeah I'm sort of too scared to get it dyno'd, not sure if I really want to know how low it is in on paper performance for such a big engine. Sort of cool just being in my happy place with it.
Even if I did dyno it I'd probably have to keep the results to myself as if the figures got into the hands of members of another forum who bagged the hell out of me for going this route, they would have a field day.
Re the gearing, it is definitely an interesting beast now. I very much like driving it now compared to the ZD30. I always used to bitch about the gearing between 3rd and 4th. Whilst the gear box gearing has not changed, I definitely do not seem to find the issue any more with the changed diff gearing.
1st gear is only there to start off in for about 2 seconds, and then it is a very leisurely up shift to 5th. It is almost like the truck does not have to prove itself anymore... It just goes..
yet to tow the camper yet... Will have a crack at this next weekend.
Kindest regards
Rainsey
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Well today the missus convinced me to put the camper on the back and head up to the Wattagans to play.
Again, the 6.5 is never going to break any speed records, but one thing that, no two things that never happened today:-
1: totally forgot the camper was behind the truck when I was doing some serious uphill sections.
2: I never once cursed today that my truck was a gutless piece of crap.
This is not to say that I did not get into low range but in doing so, I just walked up the sections effortlessly.
I did not quite know what to expect. Infact my expectations were probably higher than what I experienced today if I was to be truthful, but in hind sight, sections that I would have been in 2nd low range, I was in 2nd high. I actually was cruising at times in 5th without realizing it.
The only thing I did notice was that the 6.5 under load got up to temperature very fast. That said, the EGT's never got anywhere near where the ZD30 would have.
From a water temp perspective, get under load and I am hitting the high 90's. Hit 105 at one point. But my EGT's at the same point never got over 300.
With the ZD30, my water temp was always under the 95 mark, but I struggled to keep under 600 on the EGT,s.
Obviously still a learning curve from this perspective.
Fuel did take a hit today but I expected it. Have not filled up yet to find the final figure but I expect it still to be under what I would have been with the ZD30.
I think I am happy with my decision. Unfortunately I have nothing other than the original engine to compare against and this is really not a comparison.
Actually, yes I am happy with my decision. With age I have moved away from the hard core technical stuff and now need a competent tourer. I think in keeping the body I know and like and putting the bigger engine I am ahead of where I was.
time will tell.
Kindest regards
Rainey
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Great news Rainsey :-)
I'm starting to learn from the blokes on here and abroad that bigger oil coolers maybe could be good future summer idea options and engine bay heat release vents when under heavy loads too!
Wouldn't stress too hard about your current water temp readings in winter. I've had mine up around 115D shortly heavy hauling to Adelaide in 50km head winds and she didn't pop :-) (note;good HT coolants used)
Some yanky forums I've 'read only' reckon they'll handle up to 125D but I'm sticking with this blokes advice of 99D max for longevity :-)
http://www.heathdiesel.com
MB,
Thanks for the post. Very informative. I am a bit hyper sensitive of engine temps due to the probs with the ZD30. Sure I warped an exhaust manifold when towing up mount ousley near Wollongong last year. Was on 2nd gear, doing 30km/hr just trying to keep my EGT's below 650.
What was interesting was the old engine I sent to Simms metal. The exhaust port from the Turbo had a massive exhaust leak. Interesting as to to post engine replacement forensics... Shows some interesting info.
No doubt the Chev can cater for higher temps. It heritage has to take this into account.
As I said, it is a big learning curve at the moment. Stay tuned for more updates if it does not bore the recipients.
Kindest regards
Rainey
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Cheers Rainsey,
I'm learning 6.5s too mate :-)
The yanks have some very interesting reads, mind you their population has 10x the nuffy's so please do take mine and their posts with an open mind ;-)
Guys I am a new-comer to the forum and have been reading thru the previous posts with interest. I am a month away from getting my 6.5 optimiser n/a conversion back from Brunswick. I have however already started to plan the installation of either an additional oil cooler or a fan cooled unit, plus have selected a couple of bonnet vents for heat removal.
I read some interesting history regards the effectiveness or otherwise of bonnet scoops and decided since hot air rises and air is being forced into the front of the engine bay already it's counterproductive to change its direction.
I am also looking out for comment regards the effectiveness of the standard safari snorkel on the 6.5. Mine is fitted with the 76mm inlet and ram head. I have a small Donaldson dust spinner however the literature suggests I need a unit to handle at least 300cfm, and the little one won't. Also as I suspected this style is suited more sor statioary plant than 100kph travel - what are your thoughts? I don' t know if my conversion will come with the Donaldson under bonnet canister or the other washable style element - having a brain freeze and totally forgotten the brand - expensive but good. I guess as I wait for the toy to return my planning juices start to run amuck. PHIL
For clarity I am installing bonnet vents sourced off eBay- located towards the rear of the bonnet on the sides in the belief it will drag the hot air away from the batteries at least.
K&n air filter is the one I was thinking about.
Hi, just a question, why the NA engine and not the turbo?
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Turbo wasn't recommended for the GQ due to the issues of cooling. I also don't have a requirement for heavy towing. If I need more HP/torque in the future I will bolt on a Supercharger.Quote:
Originally Posted by rainsey
Hi all, new to this forum. I know what rainsey means re some other forums and the Chev 6.5 conversion. My 98 GU petrol now has the 6.5 Optimiser with turbo and intercooler, engine oil cooler, purpose built radiator and K&N airbox and filter - great conversion. Coolant temp probe in the upper return hose - cruising around 80 deg, climbing with trailer (1000Kg) up to 105deg - which is not a problem for this engine, EGTs never over 300deg. If further info would be helpful to other forum members I would be happy to assist.
Peter, I am keen to find out the details on your oil cooler, where its located and its size. My rig is supplied with a cooler however I am looking for a conservative solution to oil temperature control, and without having driven the vehicle can only be guided by owners themselves. I am looking into increasing the oil capacity also, possibly by using a a second oil cooler - location to be decided.Quote:
Originally Posted by peterc99
I am also keen to know if you are running a snorkle and if so, what size is it - diameter? I have a 76mm dia inlet safari snorkle and am considering an upgrade to a 4" unit based on some comments relating to airflow restriction.
Thanks Phil
I get the same temperature readings as Peter. I find with the engine that it takes a while to get up to temp, will on general cruising around town sit on the 75 to 80 mark, but it is very fast on the temperature uptake. Towing my camper up the Wattagans on the weekend I hit the 100 degree Mark quite to my surprise.
As Peter, my EGTS never really go over 300 either.
I run a standard Safari snorkel and was also considering the 4" to replace it from Millweld. My only gripe with the whole conversion was that my nice mandrel bent exhaust has been replaced with a relatively sub standard 3" with quite tight bends. This is something that I want to look at when time and money is available. Am thinking a trip up to Bauedesert to a custom job done.
Let me know if you do go with the 4" snorkel, interesting if there is any benefit.
Kindest regards
Rainsey
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