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Limits Of The Stock R32 Gtr Fuel System + Afc

Full-Race Geoff

By Full-Race Geoff,
in Engines & Forced Induction

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Full-Race Geoff Rising Star

Full-Race Geoff

Posted
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Hey Guys -- got a 100% stock R32 in the shop right now. I am building a 3" exhaust and a new fmic setup, bu the customer wants to upgrade the turbos, but stay on the stock fuel system.

We dont have too many R33 gtr turbos here, but we do have the 2860R and 2560Rs, which are designed to bolt-on to a GTR.

What is the limits of the stock system? Ive been searching, but most everyone ive found runs a powerFC.

thanks

GTRgeoff Grand Master

GTRgeoff

Posted
Posted

My GTR33 has 260rwkw on the stock computer with cam gears, adjustable reg, stock airbox, full exhaust, steel wheeled turbos and a bit of head work.

That is about the limit of the fuelling system though and it is on full static advance.

Full-Race Geoff Rising Star

Full-Race Geoff

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  • Author
Posted (edited)
My GTR33 has 260rwkw on the stock computer with cam gears, adjustable reg, stock airbox, full exhaust, steel wheeled turbos and a bit of head work.

That is about the limit of the fuelling system though and it is on full static advance.

do you mean that the CAS is at full advance?

also do you know what duty cycle your injectors are at? Thanks alot for the help

Edited by Full-Race Geoff
GTRgeoff Grand Master

GTRgeoff

Posted
Posted

I do indeed. Car was done before I bought it by RacePace.

As for duty cycle, not sure but since new turbos are going in soon I'm installing 600cc injectors, PFC and 044 with swirl pot.

Full-Race Geoff Rising Star

Full-Race Geoff

Posted
  • Author
Posted
I do indeed. Car was done before I bought it by RacePace.

As for duty cycle, not sure but since new turbos are going in soon I'm installing 600cc injectors, PFC and 044 with swirl pot.

why put the cas at full advance? wouldnt the knock meter just pull timing or are you running hi octane fuel?

also do you know how to get in touch with the guys at Racepace? email or website would be great. I want to know how much he will charge to fit 12 clutches in my r33 transfer case. thanks

PSI_GTSII Experienced

PSI_GTSII

Posted
Posted

My R32 GTR is stock except for a Pair of 2560R's

It has the boost restrictor removed and boosts to just under 1 bar.

At this boost its only producing (315rwHP) 228rwKW, Factory ECU cannot compensate for the increased airflow from new turbos and AFRs running very rich on as it comes on Boost.

I am told the addition of PFC alone will add 40rwHP with no increase in Boost

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