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R32 rebuild - where to from here

itbmils

By itbmils,
in Engines & Forced Induction

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itbmils Proficient

itbmils

Posted
Posted

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I have just rebuilt my R32 GTR as follows

forged/balanced shot peened (solid) bottom end

N1 Turbos

N1 bearings

R34 crank

port and polish head

HKS dump pipes and 80mm exhaust (no cat)

1.2mm TOMEI head gasket

N1 Water

N1 Oil

Std cooler and AFM

Mines ECU

What sort of rwkw should I expect @ ~18psi (should be fine with the N1's yes?)

What mods should I look at next and in what order

FMIC + hard piping kit

PCF

Z32s

044 Fuel Pump + injectors

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Guest two.06l

Guest two.06l

Posted
Posted
All

I have just rebuilt my R32 GTR as follows

forged/balanced shot peened (solid) bottom end

N1 Turbos

N1 bearings

R34 crank

port and polish head  

HKS dump pipes and 80mm exhaust (no cat)

1.2mm TOMEI head gasket

N1 Water

N1 Oil

Std cooler and AFM

Mines ECU

What sort of rwkw should I expect @ ~18psi (should be fine with the N1's yes?)

What mods should I look at next and in what order

FMIC + hard piping kit

PCF  

Z32s

044 Fuel Pump + injectors

the mines ECU is holding your potential back, its strange you put engines fuel supply last. It does not matter how tough you build an engine, poor fuel delivery and tuning can quickly have you back to square one. eg. a well tuned stocker can outlast and sometimes outperform a poorly tuned built engine.Paul...DIRTgarage.

itbmils Proficient

itbmils

Posted
  • Author
Posted
No, A powerFC should be next.

 

If you want to stretch the stock injectors a little you should also get an adjustable fuel pressure reg. The stock injectors 'I THINK' with a bit of fuel pressure max out just under 300rwkw.

280-300rwkw sounds about right to me (if you run the math)

do i NEED a hand controller with the PFC - or can I use a laptop

Guest two.06l

Guest two.06l

Posted
Posted
Sorry guys - quick correction  

It's not mines - it's Blitz. It's still got to go tho

any input on rwkw for the inital setup ? (I'm hoping for ~250rwkw @ 18psi)

we made 284rwkw on a stocker with cat back 3" exhaust, power fc running base map and AVC-R boost controller.

9881DIRTgarage_dyno1.jpg

itbmils Proficient

itbmils

Posted
  • Author
Posted
Everycar is different, and so are the dyno's there are run on ... in saying that you should be well over 250rwkw as you can get that with stock turbo's

was running std turbos @ ~15psi - no dump pipes - and was getting 210rwkw

pots 1 and 4 were almost total shot tho

can't wait to get the car back (and wait 5000klms for it to run in)

Guest two.06l

Guest two.06l

Posted
Posted
was running std turbos @ ~15psi - no dump pipes - and was getting 210rwkw

pots 1 and 4 were almost total shot tho  

can't wait to get the car back (and wait 5000klms for it to run in)

we tweaked the injector correction values to achieve the A/F ratios,running 1 bar boost with stockies.

R31Nismoid Grand Master

R31Nismoid

Posted
Posted
was running std turbos @ ~15psi - no dump pipes - and was getting 210rwkw

pots 1 and 4 were almost total shot tho  

can't wait to get the car back (and wait 5000klms for it to run in)

and adj cam gear is worth a good 20rwkw on a GTR

williamsf1 Mentor

williamsf1

Posted
Posted

noticed 5000km was mentioned as a run in period is this seen as the mark for boost increases to higher levels?... I have an engine in exactly the same spec as itbilms (trust cooler and factory ECU) and it has currently done 1200km and had the 1000km oil change....

motul 8100....

I am running 13.5psi max with most running being done on the 9 psi low boost setting.....

I have not taken it to the dyno as yet, as I have had the car for all of 3 days!

just a few questions for those more in the know than I.....

what is deemed a safe boost?

Apexi FC seems to be the way to go, are bigger injectors needed? and will they bring a gain for the $$$ or are they just going to give a high potential later with other things done....

oil cooler? when is it deemed a must do?

any worthy advice is certainly wanted ;) you can never know too much about these cars!

Cubes Grand Master

Cubes

Posted
Posted

I've stuck with mineral oil (Motul 4000 10w30) until 10,000km's.

Its probably a little overkill as I only really needed to stay with mineral oil until 5,000km's.

I figure its best to be safe than sorry and have a motor that has a bit more blowby than it should have.

Up to 10,000km's is what they yank's usually do and is what is recommended for a lot of new cars before changing to synthetic. Thats the main reason for my decision.

R31Nismoid Grand Master

R31Nismoid

Posted
Posted

My motor, run 16psi since it was bedded in on the dyno using mobil1 synthetic right from the start.

Nothing wrong yet, down'd 5000km's so far

MAjor car manufacturers use synthetic right from the get-go, so am i

pnblight Mentor

pnblight

Posted
Posted
All

I have just rebuilt my R32 GTR as follows

forged/balanced shot peened (solid) bottom end

N1 Turbos

N1 bearings

R34 crank

port and polish head  

HKS dump pipes and 80mm exhaust (no cat)

1.2mm TOMEI head gasket

N1 Water

N1 Oil

Std cooler and AFM

Mines ECU

What sort of rwkw should I expect @ ~18psi (should be fine with the N1's yes?)

What mods should I look at next and in what order

FMIC + hard piping kit

PCF  

Z32s

044 Fuel Pump + injectors

first power fc and hand controller

second afms (rb20/25 are good to 540rwhp and much cheaper)

third 700cc injectors (i dont know about pump as i'm making 525rwhp on std unit)

also when you do afms upgrade all your inlet piping to turbos

and with these mods with good exhaust you should easily make mid 400rwhp

only my opinion hope it helps ;)

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