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1988 Hr31 RB25 street/race 330kw 17psi


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Have had this car for nearly 10 years and when we bought it is was standard.

 

Engine / engine bay

 

Approx 15,000kms after reco 10 years ago.

Mahle forged pistons

Cometic head gasket

Oil pump mod

ASR baffle/doored sump

Oil cooler

Power steer cooler

PWR radiator and spal fan

Motec M84 cost $3000

M & W CID ignition cost $1100

Garrett 30/76 with .92 rear housing

Modified factory intake with Ford falcon throttle body

840cc sard injectors.

Intank walbro pump which feeds surge tank with 2 fuel filters and a Bosch Motorsport 044 pump for main fuel supply

Insight Motorsport Custom Cam’s and adjustable cam gears. Titanium retainers and double valve springs.

Rebuild rb25 gearbox

Makes 330rwkw (440hp) @ 17psi on 98 fuel

We picked up 70kw on th same boost with the cam upgrade.

I haven’t run more than 17psi as with the tyres size on the race track it’s hard enough to get the power down.

The engine, turbo, pistons and cooling system would definitely handle more power especially with the good ECU and Ignition system it has.

 

Suspension/Brakes/chassis

 

S13 front suspension conversion

Fabricated brackets for adjustable caster rods

Ksport coilovers all round

Ksport brakes

Fronts 8 pistion 365mm rotors

Rears 6 piston 330mm rotors

Solid rear subframes bushes

Hicas deleted and vanes removed from pump

Hyundai tie rod ends to allow more thread in tie rod.

Rebuilt r200 diff with extra clutch plates. Works great!

 

Wheel alignment specs

Front

3.5 degree neg

7 degree caster

3mm total toe out

Rear

2 degree neg

0mm toe

 

Body and interior

 

R31 house front bar and lip

Forget the name of the side skirts and rear skirt

Has good paint however over the years of close racing it has stone chips on the front end. But still present very well.

six point cage. All tig welded. Back seats don’t fit but have been stuffed back in to looks like it’s factory.

2 bride seats.

 

Has engineers report however I don’t know where it is anymore and it didn’t include the cage and brakes. I never planned on selling this car and was working towards making it a race car only. It’s still has full rego and plates are included.

 

please call or text 0415292220. 

Not really interested in swaps either  

 

Tags;

GTR r32 r31 r33 v8 Holden ford skyline e85 Nismo Vspec Mazda

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