Considering 1.2 bar.Any thoughts? - GT-R Register - Official Nissan Skyline and GTR Owners Club forum

git-r · 21st August 2006, 05:46 PM

I've got an R32 gtr vspec 2 with de cat, hard pipes, intercooler, oil cooler but otherwise pretty much standard.. It runs about 0.8bar at the moment with the standard boost solenoid/setup..
I'm really after a bit more grunt and am thinking of getting the turbo's changed(to standard size with steel internals), upping boost to between 1.1 and 1.2 bar and keeping everything else standard. This should be safe shouldn't it?

Has anyone had this done - if so whats it like?? think it should give around 380bhp and certainly make it feel a lot more lively

I know this sort of question is asked a lot but would like to hear from folk that have had it done..

Thanks

R32 Combat · 21st August 2006, 06:06 PM

Been there, done that.

I ran 1.2 bar with everything else stock(apart from a re-map+turbos like you mention) and it was good.

And yes, it is loads faster.

GTRNICK · 21st August 2006, 06:09 PM

To be honest you do not want to run anymore than 1.0bar of boost on standard turbos as they wont last very long and could cause you alot of grief and end up spending alot of money to fix the problem!!!!

I had an R34 GTR and had my boost set at 1.0bar even though I was told R34 turbos would handle 1.15bar of boost!!!

Hope this helps you (this is just my opinion and I'm sure others will give you theirs)!!

git-r · 21st August 2006, 06:39 PM

R32 combat,
thanks for that. It's great to know it'll feel a lot quicker

..I'll just get a boost controller but leave the fueling/map standard.. been told this is ok.. Did you have any reliability issues once you had it done??

GtrNick - def going to change the turbo's

Wouldn't try running the stock ones past a bar after some of the stories i've read on here

Cheers,
Sam

Toby Broom · 21st August 2006, 08:54 PM

My R32 makes about 380bhp @ 1bar so expect a bit more than that.

defo make sure you have uprated internals or aftermarket tubbies

Nocturnal · 21st August 2006, 09:04 PM

I say go for the R34 turbo if you can find them... They normally float around £400-500 depending on condition.

You can run 1.15 bar on these standard, but it will spool way earlier than the standard R32 turbo with steel internal. With a set of Tomei Poncam you can get about 480bhp out of these turbos...

R32 Combat · 21st August 2006, 09:06 PM

If you run 1.2bar, you WILL need a re-map. Purchase yourself a Apexi Power Fc ECU and get it mapped properly.

Everything else is more that reliable enough, although you will be right on the injector and AFM limit. I think I was running 100% injector cycle @1.2 bar and about 5v with the AFM. It was a while ago now but I'm sure thats about right. I needed bigger injectors running 1.3 bar, thats for sure, I might have needed them for 1.2bar, like I say, I can't remember exactly. But with the PFC, you can see these limitations without breaking anything...

Nick MW · 21st August 2006, 09:13 PM

I would agree, find a decent set of R34 GTR turbos and go for 1.15 bar..

Bono has some low mileage ones in his garage for sale, £500 with elbows from memory.

Toby Broom · 21st August 2006, 09:20 PM

here's some data one what power to expect.

http://www.planetkingsley.com/skyline/

I agree with combat, you'll be on the limit of the AFM's and Injectors.

R32 Combat · 21st August 2006, 09:26 PM

You will be on the limit of the STD clutch too, so thats something worth thinking about.

Fred · 22nd August 2006, 10:34 AM

I think you may also need an uprated head gasket to run 1.2 bar?

hodgie · 22nd August 2006, 10:41 AM

I put on standard R34 turbos, £300 from Abbey, with boost controller and remap it was the best thing i`ve ever done, abslutely love it. The turbo`s start to spool up at 2100rpm.

git-r · 22nd August 2006, 06:45 PM

Thanks for all the replys chaps

Unfortunately, i'm going to have to forget changing the turbo's as i hadn't budgeted for ecu +remap.. Spoke to Marc at abbey and he suggested going for an hks fcon thingy, boost controller and remap to .9bar. That way i'll be in budget(just) and have a good base for future mods as i'd like to go as far as is safe on standard engine internals.

Clutch wise, i'm sure my clutch will be ok at .9bar (it's not standard i don't think) but if it fails are there any other proven clutches apart from os giken??

I'm quite excited!!

Think i'll still find the car quite sluggish at .9 bar but will just have to save pennies for some new turbos, injectors, clutch etc etc

Musn't count my chickens tho, be just my luck to get the car booked in and find it needs lots of other things doing first

R32 Combat · 22nd August 2006, 07:07 PM

IMHO, don't get a HKS Fcon. They are too much money for what you need..

Toby Broom · 22nd August 2006, 07:14 PM

Andy, it depends if it and FConS or FConV pro, doesn't it? I'd say the S is like a PowerFC.

As I said before my car makes ~380 at 1bar so you should be close to your original target.

Your clutch should be OK at those power levels, athough budget for a replacement in the next 12months or so. I have Nismo one which is great.

21st August 2006, 05:46 PM	#1 (permalink)
git-r GTR Register Member Join Date: Nov 2005 Posts: 391	Considering 1.2 bar.Any thoughts? I've got an R32 gtr vspec 2 with de cat, hard pipes, intercooler, oil cooler but otherwise pretty much standard.. It runs about 0.8bar at the moment with the standard boost solenoid/setup.. I'm really after a bit more grunt and am thinking of getting the turbo's changed(to standard size with steel internals), upping boost to between 1.1 and 1.2 bar and keeping everything else standard. This should be safe shouldn't it? Has anyone had this done - if so whats it like?? think it should give around 380bhp and certainly make it feel a lot more lively I know this sort of question is asked a lot but would like to hear from folk that have had it done.. Thanks

21st August 2006, 09:04 PM	#6 (permalink)
Nocturnal GTROC Member Join Date: Nov 2004 Location: Banzai Oct.07 Issue Posts: 1,789	I say go for the R34 turbo if you can find them... They normally float around £400-500 depending on condition. You can run 1.15 bar on these standard, but it will spool way earlier than the standard R32 turbo with steel internal. With a set of Tomei Poncam you can get about 480bhp out of these turbos... __________________ WideBody BNR32: Winner of the 2007 Cubism Award!!! Banzai October 2007 Feature Car / MaxPower April 2008 Feature Car For Magazine Feature, Wallpapers, Videos, and more...CLICK HERE!!!

22nd August 2006, 10:41 AM	#12 (permalink)
hodgie MODERATOR Join Date: Oct 2003 Location: Sat in my Car Posts: 4,948	I put on standard R34 turbos, £300 from Abbey, with boost controller and remap it was the best thing i`ve ever done, abslutely love it. The turbo`s start to spool up at 2100rpm. __________________ 720 spinner at Spa, GTROC SW Rep. Hodgies Skyline GTR Site --

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21st August 2006, 06:06 PM	#2 (permalink)
R32 Combat New Users Join Date: Jan 2004 Location: Berkshire Posts: 4,357	Been there, done that. I ran 1.2 bar with everything else stock(apart from a re-map+turbos like you mention) and it was good. And yes, it is loads faster.

21st August 2006, 06:09 PM	#3 (permalink)
GTRNICK GTR Register Member Join Date: Apr 2005 Location: Somewhere Posts: 366	To be honest you do not want to run anymore than 1.0bar of boost on standard turbos as they wont last very long and could cause you alot of grief and end up spending alot of money to fix the problem!!!! I had an R34 GTR and had my boost set at 1.0bar even though I was told R34 turbos would handle 1.15bar of boost!!! Hope this helps you (this is just my opinion and I'm sure others will give you theirs)!!

21st August 2006, 06:39 PM	#4 (permalink)
git-r GTR Register Member Join Date: Nov 2005 Posts: 391	R32 combat, thanks for that. It's great to know it'll feel a lot quicker ..I'll just get a boost controller but leave the fueling/map standard.. been told this is ok.. Did you have any reliability issues once you had it done?? GtrNick - def going to change the turbo's Wouldn't try running the stock ones past a bar after some of the stories i've read on here Cheers, Sam

21st August 2006, 08:54 PM	#5 (permalink)
Toby Broom New Users Join Date: Aug 2003 Location: Herts Posts: 1,481	My R32 makes about 380bhp @ 1bar so expect a bit more than that. defo make sure you have uprated internals or aftermarket tubbies

21st August 2006, 09:06 PM	#7 (permalink)
R32 Combat New Users Join Date: Jan 2004 Location: Berkshire Posts: 4,357	If you run 1.2bar, you WILL need a re-map. Purchase yourself a Apexi Power Fc ECU and get it mapped properly. Everything else is more that reliable enough, although you will be right on the injector and AFM limit. I think I was running 100% injector cycle @1.2 bar and about 5v with the AFM. It was a while ago now but I'm sure thats about right. I needed bigger injectors running 1.3 bar, thats for sure, I might have needed them for 1.2bar, like I say, I can't remember exactly. But with the PFC, you can see these limitations without breaking anything...

21st August 2006, 09:13 PM	#8 (permalink)
Nick MW GTR Register Member Join Date: Aug 2003 Location: Beds Posts: 1,583	I would agree, find a decent set of R34 GTR turbos and go for 1.15 bar.. Bono has some low mileage ones in his garage for sale, £500 with elbows from memory.

21st August 2006, 09:20 PM	#9 (permalink)
Toby Broom New Users Join Date: Aug 2003 Location: Herts Posts: 1,481	here's some data one what power to expect. http://www.planetkingsley.com/skyline/ I agree with combat, you'll be on the limit of the AFM's and Injectors.

21st August 2006, 09:26 PM	#10 (permalink)
R32 Combat New Users Join Date: Jan 2004 Location: Berkshire Posts: 4,357	You will be on the limit of the STD clutch too, so thats something worth thinking about.

22nd August 2006, 10:34 AM	#11 (permalink)
Fred GTR Register Member Join Date: Oct 2001 Location: London Posts: 649	I think you may also need an uprated head gasket to run 1.2 bar?

22nd August 2006, 06:45 PM	#13 (permalink)
git-r GTR Register Member Join Date: Nov 2005 Posts: 391	Thanks for all the replys chaps Unfortunately, i'm going to have to forget changing the turbo's as i hadn't budgeted for ecu +remap.. Spoke to Marc at abbey and he suggested going for an hks fcon thingy, boost controller and remap to .9bar. That way i'll be in budget(just) and have a good base for future mods as i'd like to go as far as is safe on standard engine internals. Clutch wise, i'm sure my clutch will be ok at .9bar (it's not standard i don't think) but if it fails are there any other proven clutches apart from os giken?? I'm quite excited!! Think i'll still find the car quite sluggish at .9 bar but will just have to save pennies for some new turbos, injectors, clutch etc etc Musn't count my chickens tho, be just my luck to get the car booked in and find it needs lots of other things doing first

22nd August 2006, 07:07 PM	#14 (permalink)
R32 Combat New Users Join Date: Jan 2004 Location: Berkshire Posts: 4,357	IMHO, don't get a HKS Fcon. They are too much money for what you need..

22nd August 2006, 07:14 PM	#15 (permalink)
Toby Broom New Users Join Date: Aug 2003 Location: Herts Posts: 1,481	Andy, it depends if it and FConS or FConV pro, doesn't it? I'd say the S is like a PowerFC. As I said before my car makes ~380 at 1bar so you should be close to your original target. Your clutch should be OK at those power levels, athough budget for a replacement in the next 12months or so. I have Nismo one which is great.