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How Much Power Can My Intake Plenum Handle?

SHOWOFFR32
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SHOWOFFR32 Collaborator

SHOWOFFR32

Posted
Posted

Hey guys, as the title says I'm wondering how much power my RB26 plenum can handle in my R34 GTR??

I have a Presicion billet 6766 turbo and a full forged motor with race head and modified throttle bodies..

I'm currently running 268awkw at 9psi on BP Ulitmate and want to run E85 and 25psi, will my

Standard plenum handle this power? Engine built to run 500+awkw?

Thanks, Brad.

R31Nismoid Grand Master

R31Nismoid

Posted
Posted

Given on a 3.4l 2JZ it didn't really come on until 4200rpm, it's going to be interesting to see your results.

Some graphs from a dealer below.. Made 900rwhp @ 36psi, so knock a bit off that for the Aussie world and certainly looks like you'll need a wee bit more than 25psi to get 500rwkw as Jez stated :)

http://forums.evolut...766-inside.html

That said the plenum might well be ok at that level given you are only running 25psi and at that boost it seems unlikely to make over 500rwkw as a result.

SHOWOFFR32 Collaborator

SHOWOFFR32

Posted
  • Author
Posted

We'll see, its gettIng it's tune on the 11th so we'll see what some decent psi will give..

On the run in tune I'm seeing boost building by 3800rpm and it hits hard at 4300rpm, not bad for a 2.6L

NYTSKY Grand Master

NYTSKY

Posted
Posted

I would guess not for long.

I only know of one RB26 which had stock rods but forged pistons,made 580rwkw on E85 and lasted a few months of racing. However the motor had been together for 5 years before that at 400rwkw.

The only restriction you will face to up to those power limits is the wallet.

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