After more power 4.2 carby dual fuel

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

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Originally Posted by MQ MAD

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

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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.

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Originally Posted by Bigrig

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.

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Sounds good.
some info on build would nice.
Turbo model and ratio ?.
manifolds, std or modified?.
exhaust size? twin dump pipe or single?.
mod computer who's or stock?.
Injectors stock or upgrade?
ETC.
Cheers

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

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Originally Posted by Robo

Sounds good.
some info on build would nice.
Turbo model and ratio ?.
manifolds, std or modified?.
exhaust size? twin dump pipe or single?.
mod computer who's or stock?.
Injectors stock or upgrade?
ETC.
Cheers

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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!!

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Originally Posted by YNOT

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

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Thanks Tony.
I saw/read this 1 a couple of days ago, looks a bit on the wild side hey!.
Fun and games.
If you haven't seen anything on pikes peak, do a search, man their just nuts.

Robo.

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.

Quote:

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Originally Posted by Robo

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.

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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