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hi guys,

i just need some help setting up my car. recently i have spun a bearing on my r33 gtr its almost finished being rebuilt and i dont know how much boost i can run and what power i could be getting???

Mods

• Full engine rebuild blue printed bottom end

• ACL race bearings big end and main

• Aries forged pistons 1mm oversize block deck/milled/bored and honed

• Eagle forged rods

• ARP head stud kit

• 2 x HKS 2530 turbos

• N1 oil pump

• MLS 5 layer steel gasket

• Recondition head

• Ported exhaust manifold

• Custom twin dump pipes

• HKS super dragger exhaust

• Microtech computer

• Trust twin entry intercooler

So can anyone tell me what boost i should run and what power i could be getting im looking at about 320+RWKW

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You don't mention what you have for a fuel system.

With your mods you can pretty well go where you like if you can get sufficient fuel and a clutch that will hold up.

Have a scan through the RB26 mods list and you will get a good idea but for ~320 rwkw you will probably need bigger injectors and a bigger fuel pump and run anywhere from 1 to 1.4 bar to get your target depending on who is tuning it.

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https://www.sau.com.au/forums/topic/217635-rb26-rebuilt/#findComment-3841305
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^^^ cheers

how long can the motor hold 25psi for, will it blow up??

not if i built it...hehe

my last engine with 2530's saw 34psi and made 467kw at the tyres...on the dyno

and ran low 10 sec passes on 28psi for 3 years until.....N1 oil pump shat itself launching at 9500rpm

rev's will kill your engine before boost will (provided its properly tuned)

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In terms of you wont make 440rwkw on PULP regardless due to needing decent fuel, then you need good ignition etc, its a domino effect

my interest relates to your statement of running 22-24psi then spark breaking down, obviously making 440rwkw will require fuel and solid ignition upgrades

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