Hi guys.
have the usual mods.
Extractors, 2 1/2 full exh system, pertronic, iridium plugs.
what up with this 120y faster , any way what can be done?? to up the anti to this 4.2 and remain legal.
:)
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Hi guys.
have the usual mods.
Extractors, 2 1/2 full exh system, pertronic, iridium plugs.
what up with this 120y faster , any way what can be done?? to up the anti to this 4.2 and remain legal.
:)
Camshaft, head work, raising compression, fuel injection etc. Speed costs money - how fast do you want to go?
Tony
Hi Tony.
after something better.
the amount of torque these have seems fairly ok but getting there is like watching paint dry.
was wondering what others are doing?.
would like v8 but can't justify those $$ and probable insurance problems.
Ok who's doing engine reco / rebuild for more power for the street?.
Or can I buy the parts and do it myself?.
Then don't waist a cent on the one you have & just put a TD42t in it.... It will probably work out cheaper cost wise. last heaps longer, have the power your looking for & be much better on fuel than a worked TB42 as well.
I've got a TB42 myself but after being in a TD42t I want one, so guess who'll be on the hunt himself later this year???....lol
I've recently turbo'd my petrol (well LPG originally, about to be fully petrol again) and even with a small turbo, the power output is more than noticeable - untuned, with the truck having issues and because I'm an idiot mainly (lol), decided to test it out against a monkey in a Audi A6 that was sitting on my rear down a road near me - breaks into two lanes as you near traffic lights, but back into single lane about 50m the other side of the lights (you know the type, quality govt infrastructure!!). Anyways, he pulled out at the double lanes, and pulled up beside me - needless to say, I gave intent that I was going to make things difficult to which the toffee would not have given a second thought due to him being in an A6 and this clown beside him being in a 2.6 tonne patrol ...
Long story short, he needed about another 40-50 metres of parking lane after it went back into a single lane to do the patrol !!! Surprise of his life no doubt!!!
My point is they respond well to a turbo and pull strong ...
Having done what I've done, I wouldn't go through it again and would go straight for a bolt on kit - suss out Will Tobin's website (www.quickspool.com.au) as he does patrol specific kits ... not saying go with his necessarily, but will give you ideas ...
Good luck!!!
My GQ TB42 EFI is 100% stock and theres no way itll get dusted by a 120Y and i dont sit around waiting for paint to dry, for a stock lump it holds its own,and dont think for a sec when the minister drives "Öh a sheila in a 4by thisll be easy " she takes no prisoners
From what ive heard its hard to tune and run both dual fuel and get the max power from both , its either one or the other
If it does seem like that 120Y has you dusted , maybe a full engine diagnosis is in order
Airflow might be restricted by the lpg mixer depending on wich type it is running.
I had a few tb42's years ago and messed with the secondary on the carb so it opened manually.
Changed the timing advance and fitted pertronix ignition with the extended rotor.
120y is a figure of speech, we all know there slow.
I guess you read post wondering how to get more power outta your's also.
My other car is a GTR skyline, you know the little Nissan straight 6, that kicked v8 arse all over the mountain, so I guess I'm after a bit more performance.
Seeing as this Mav is mainly a highway cruise and occasional tow vehicle and not a mud pony.
I was thinking of e/swap to efi and turbo, I'm simply trying to find out what else out there works, and to just install efi ,sorry this isn't enough, for my taste, especially when towing.
A near 3 tonne lump of 4x4 just isnt comparable in power,handling,performance of a GTR skyline If you want the 4x4 to have the get up n go of the skyline it just wont happen even with an LS1 V8
So getting anywhere near the skylines performance from the 4.2 pettie, youll need very very deep pockets
Theres a big difference , i can tow 3 tonne quite comfortably with the patrol something the skyline cant do
I can sit on 100, overtake from 100,pull up hills with the load something the skyline cant do
Yes the skyline has the power,but there as different as chalk and cheese
I bought my patrol to tow, and it does everything that it was bought for and more, as i mentioned its 100% stock as a rock
I get the Idea, your happy with your 4x4 the way it is. Happy for you.
All I'm after is info on what others are doing, I never said that i want Gtr performance, simply trying to make the point, I'm after a bit more herbs under my foot, and said so.
My 4x4 does similar to your claim also, just want to improve on that.
Thats why I created this thread, research a tried and tested way with the 4.2 petrol version.
I just prefer petrol and LPG, over diesel that s all.
If you know how to improve on 4.2 petrol ,please, I'm all ears.
And I'm sure other would be interested to read it also.
Cheers.
I've gone back to straight petrol to be able to tune properly (not inbetween for the two) and after doing the turbo, the rig has now had the head machined to decompress (about 20cc to get to around 7.6-7.8 to 1 along with a tonne of other stuff!! lol It goes on the dyno on Tuesday, so I'll post the figures up for you - even as it was before (poorly tuned, and other issues) I'd say it was at least 40% more than standard - but truth will be revealed next week mate.
Not sure if this is much help but have a look at this thread and some of the links in it; http://www.nissanpatrol.com.au/forum...ff-Road-Racing
Tony
Most the information is spattered in my build thread mate but:
Garret imitation turbo (will get a ball bearing garret down the track)
Standard TD42 manifold
XR6 Turbo Intercooler - front mounted
3" dump pipe/2.75" exhaust mandrel bent no cat
Single dump pipe
Wolf V500 ECU
Bosch 660cc injectors (high performance and larger - have to be)
Wallbro high performance fuel pump
Wholesale Automatic stage II heavy duty valve body
And a range of assorted goodies!!
Will search for your thread.
Thanks.
Robo
I came across someone modifying Gtr exh manifold, looked the goods for 4.2, if ya haven't seen these in std form, cast 3 to 1, by 2ea
there's a/m stainless 3 to 1 headers or even a/m 6 to 1 top mount and flow fantastic, so here's an option.
As whats been said its hard to get both LPG and petrol to both run well
Not many bother spending the bucks on a carb 4.2 as for the money to bother you can pick up an injected 5L V8 for about 1500 bucks, if even that nowadays
To spend even more on the TB , the 5L will have you all across the board
Then nowadays the LS1 engines can be had cheap
Im maybe not sure how much more power your chasin ???
How much money you spending
If for some reason my 4.2 pettie stuffs up , i wouldnt be spending any money on it , it would be to a V8
Itll have the same economy ,or lack of and heaps more go
After more power TB42 dual fuel ???
Maybe my answer should have been
How much money do you wanna spent
Up near 4 grand, go V8
How many kilowats does an LS1 have? I was just reading about a GU in a recent 4wd magazine. It has the 4.8 petrol with stock internals but with a turbo strapped on. He is getting 260 kilowats at the wheels on 35" tyres. Pretty nice!!
The one I was talking about was a 4.8 not a 4.2 so I suppose you'd get a bit more there. But it shows some pretty big power gains. So it had the 260 Kw @ 4200 rpm and 1230 Nm @ around 2600 rpm. And yeah these figures were 'at the wheels' on 35's. Impressive!
Yea sounds nice.
Thats the sort of reason I cant understand why bother e/swapping.
A 4.2 with say 30% turbo power up why bother go else where.
just efi by itself only a couple of kW and Nm but add a turbo, presto.
now fellers don't worry about written to argue about the merits of e/swap, it's simply a matter of personal choice ok.
Probably close to the mark - I'm not looking for a fire breathing dragon, but figures of 200kw+ and 800nm from the 4.2 was what I was told is more than achievable ...
That said, I'll be sacrificing both if needs be when it gets dyno'd for outright drivability and engine life ... if I get around 160-180kw at the rears (compared to about 90kw off the showroom floor) I'll be stoked.
Ok, having a look at the mag right now..... I was wrong about the torque....it's not 1230 Nm, it's 1250 Nm!!! @ 2700 rpm. And 260kw @ 4200 rpm. that's bl--dy tough! Maybe the owner is out there somewhere? Would be great to have a chat if you are.
Whats he done to the 80 series?
Either been dyno'd?
both been dynod
the land cruiser is 15 years of research and devopment (its built for track racing, and on road hill climb events) Ive ridden it many times I used to live with the owner. it torque steers and you can feel it twist the chassis when he's up it and the look on the skyline drivers face when he is getting his arse handed to him on a platter by a landcruiser is PRICLESS
an xr6 turbo can be made into a 10-11 second car with bolt on mods only. once you start working the motor ie heads, cams, etc you make big power
here is a pic of the cruisers engine bay
Nice. The RB30 engines also make a lot of power with only bolt ons. Type "patrol Vs ......." into YouTube for some awesome 4wd drags.
Yeah that's right, but never going to do it for 4k not even if I do every single bit of labour my self.
and would still be 2 nd h/junk.
Been there done that, engine reco etc.
It's the Wife's tow vehicle and she travels a fair way to shows so I want and need reliability not junk.
This little black duck not going to be broken down more times than not.
Cheers
After more power is the title, not neck breaking chassis twisten and $30+k later.
Rb30 tend to throw rods when pushed and block not comparable with 4.2's .
yeah a half decant donk but I'm after life span.
It's a sliding scale, the more power, the more money. And if you want more power AND reliability then it's even MORE money. If you find a cheap way of doing it I'm sure there'll be a lot of people interest lol.:-)
so 4 grand is your budge now not 12. your all over the place mate.
if its a tow/travel I agree with YNOT do the head, put a cam in it to increase torque and make good power at thighway speed
OK then. start again.
After more power from 4.2 carby lwb 4x4 on dual fuel, this is a highway cruiser tow vehicle, daily driver.
Has all the usual mode so far.
Extractors, 2 1/2 exh system, pertronic, iridium plugs, morey's oil drip system.
2" raised and poly bag inside rear, caster correction etc.
After a power increase to tow so where not that 4x4 that hold everyone up at the first sign of a hill.
So approx 30% increase in power could be on the money.
After advise from someone that know's on what can be used to achieve a reliable engine for this sort of gain in power and the added torque.
Think v8 is over kill on cost and that this sort of power gain can be easy to achieve with efi cam and maybe turbo. And not interested in diesel.
$$$$ are not the question here I'm after the info.
Just to quote cam, injection, turbo , isn't a answer.This is obvious.
What has been done and or can be used, and parts spec's to achieve this sort of gain with reliability.
After the complete story for around 30% increase in power and the associated torque that goes along with it.
Cheers