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Advise On Moding Stock Gtr

gexenon

By gexenon,
in Engines & Forced Induction

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gexenon Collaborator

gexenon

Posted
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Posted

Wy upgrade the radiator? never had any cooling issues with the stock one.

If you don't have 10k and don't want to rebuild, I'd be changing the turbo's now before they let go and destroy things. I'd also be thinking about upgrading the radiator and having the cooling system flushed.

You have a very old car there which would have seen a little more spirited driving than other cars the same age.

- Rebuilt or upgraded turbos

- cooling

- replace all really old bits that look like they need replacing. hoses, cv boost, etc.

that should give you some clever things to spend you money on for a while.

psybic Proficient

psybic

Posted
Posted

True, I should have said if it needs it. If you are chasing more power and it is the original unit, I can't see how it won't need some sort of help now.

My point is just really that they are old. I'd start looking through the threads of things that have gone wrong to other peoples cars and make sure it doesn't happen to me first.

I should have done that myself...

gexenon Collaborator

gexenon

Posted
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Thanks, advise taken. I don't think these power figures i'm chasing are crazy and most of the stock components should be able to take it.

At the moment i've settled on

- Trust extension dumps & front pipes

- CATCO high flow cat

What brand of cat back is really quite with a nice exhaust note? i've heard all the jap ones are pretty loud exept fujitsubo.

True, I should have said if it needs it. If you are chasing more power and it is the original unit, I can't see how it won't need some sort of help now.

My point is just really that they are old. I'd start looking through the threads of things that have gone wrong to other peoples cars and make sure it doesn't happen to me first.

I should have done that myself...

arep3 Experienced

arep3

Posted
Posted

a must to look at the cooling system. ur radiator might seam fine but could possibily have a cracked tank. could be blocked to a certain extent. my cars cooling was fine til a hot day. i had the radiator flushed out and the guys at the radiator joint told me that it was over 40% blocked.

then theres other things like steel cooling lines, rubber hoses that like to run through small pain in the arse spots (like between the firewall and block) and the heat transfer unit. (your oil filter bolts to it)

my friends always ask me why ive spent so much money on my car and dont have any extra power. its cos im fixing all of these problems. boring stuff but without a good cooling system or oil system, car wont run.

gexenon Collaborator

gexenon

Posted
  • Author
Posted

The cooling seems ok, i've driving to SA (from melb) on boost most of the way for 8 hours on a 37 degree day and the car ran without any probs. I do understand that these things get old.

a must to look at the cooling system. ur radiator might seam fine but could possibily have a cracked tank. could be blocked to a certain extent. my cars cooling was fine til a hot day. i had the radiator flushed out and the guys at the radiator joint told me that it was over 40% blocked.

then theres other things like steel cooling lines, rubber hoses that like to run through small pain in the arse spots (like between the firewall and block) and the heat transfer unit. (your oil filter bolts to it)

my friends always ask me why ive spent so much money on my car and dont have any extra power. its cos im fixing all of these problems. boring stuff but without a good cooling system or oil system, car wont run.

my_gtr32 Collaborator

my_gtr32

Posted
Posted

Look at rebuilding your turbos with steel exhaust wheels, or buy new. That's the real weak spot when chasing more power / boost on a GTR. The ceramic exhaust wheel shatters and may take out your engine. Its good insurance but costs around 3K installed. Its very hard to replace turbo dumps without removing the turbos anyway. If you want the Trust extension dumps & front pipe you realy have no option but removing the turbos.

I'm running rebuilt standard turbos, standard dumps with HKS front Y pipe. Yes bigger dumps may help but not by that much if using gtr turbos on say 16PSI boost. Can't justify the expense. This is not just my opinion, its what I was told by one of the best tuners in Melbourne. No need to replace dumps.

I'm running 265rwKW at 16PSI r32 GTR. Other engine mods are cam gears, PFC and high-flow cat back. It's a daily driver. And Sk's group buy suspession pack is a must.

Thanks, advise taken. I don't think these power figures i'm chasing are crazy and most of the stock components should be able to take it.

At the moment i've settled on

- Trust extension dumps & front pipes

- CATCO high flow cat

What brand of cat back is really quite with a nice exhaust note? i've heard all the jap ones are pretty loud exept fujitsubo.

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