Next stage - GT-R Register - Official Nissan Skyline and GTR Owners Club forum

skyline69_uk · 3rd August 2005, 09:01 PM

I currently own what would be considered a stage 1 modded R32 GT-R - PFC, exhaust, air intake etc running 0.85 bar with 311bhp at the wheels. Sometime in the future I would like to move to the next stage of power using the existing tubs with steel internals.

I know this question must have been asked a 100 times before but...

How much funding will it take to replace the cermanics with steel internals and how much power and bars can I get from this mod alone with a PFC remap - do I need to mod anything else at the same time for safety etc?

lynchy · 4th August 2005, 11:41 AM

AFAIK standard turbos with steel internals will run to 1.2, much more than that they become inefficient. You should get about 480 at the crank on them. I think you could stick with the standard fuel pump and injectors with an uprated fuel pressure regulator but it would be borderline.

I've been quoted about £1000 for converting to steel (cash) and it's about £500 labour for fitting plus a remap, fuel pressure reg (~120). It might be worth fitting elbows while they were off (~350 UK supplied). If you haven't already got it, a decat (~70) and front pipe (~250) would be worthwhile and exhaust if you haven't alraedy got it.

Best have a chat with one of the specialists, RB will put you right.

lynchy · 4th August 2005, 12:09 PM

I forgot, you may have maxed out your AFMs by that stage, it'd be borderline.

3rd August 2005, 09:01 PM	#1 (permalink)
skyline69_uk GTROC Member Join Date: Jan 2005 Location: NI Posts: 2,833	Next stage I currently own what would be considered a stage 1 modded R32 GT-R - PFC, exhaust, air intake etc running 0.85 bar with 311bhp at the wheels. Sometime in the future I would like to move to the next stage of power using the existing tubs with steel internals. I know this question must have been asked a 100 times before but... How much funding will it take to replace the cermanics with steel internals and how much power and bars can I get from this mod alone with a PFC remap - do I need to mod anything else at the same time for safety etc? __________________ Do it right or don't do it at all. "You're a pack of a**holes!" - Jim Richards 1992. スカイライン６９　UK

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4th August 2005, 11:41 AM	#2 (permalink)
lynchy GTR Register Member Join Date: Aug 2004 Location: Nr. Chester Posts: 421	AFAIK standard turbos with steel internals will run to 1.2, much more than that they become inefficient. You should get about 480 at the crank on them. I think you could stick with the standard fuel pump and injectors with an uprated fuel pressure regulator but it would be borderline. I've been quoted about £1000 for converting to steel (cash) and it's about £500 labour for fitting plus a remap, fuel pressure reg (~120). It might be worth fitting elbows while they were off (~350 UK supplied). If you haven't already got it, a decat (~70) and front pipe (~250) would be worthwhile and exhaust if you haven't alraedy got it. Best have a chat with one of the specialists, RB will put you right.

4th August 2005, 12:09 PM	#3 (permalink)
lynchy GTR Register Member Join Date: Aug 2004 Location: Nr. Chester Posts: 421	I forgot, you may have maxed out your AFMs by that stage, it'd be borderline.