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Hks Gt Rs Made 565rwhp........

markr34gtr

By markr34gtr,
in Engines & Forced Induction

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Guest two.06l

Guest two.06l

Posted
Posted
latest dyno results twin hks gt rs at 30 psi on c16 today.....

very happy.... have a look at the room temp and air temps ....

will be fun to drive at night time with cold air....oops....

cheers.... and yeh i now there shit turbos.....

Gday mark, just wondering what camshafts are you running or what cam timing. We are considering this upgrade for Staceys race car which is currently running 2530s, let me know your opinion on this as a potential upgrade for her, as she uses the car purely for drag.High mounts will come later as we want to go after the low mount aust record(10.78) Ill will be steering for the record(if she lets me) Paul..DIRTgarage

Gav Mentor

Gav

Posted
Posted

Congrats Mark

I've got a pair of these on the way from Japan and hope to achieve similar results.

As per two.o6l's request, what cam specs and head work has been done? Factory exhaust manifold? Factory plenum and throttle bodies?

Cheers

Gav

Gav Mentor

Gav

Posted
Posted

Pretty similar to what I have - encouraging.

Any reason you used 5th for the dyno run?

I't looks like the run was finished before the power dropped away too much - what were the revs at end of the run?

Good luck with further development - I'll be watching with great interest!

markr34gtr Experienced

markr34gtr

Posted
  • Author
Posted

5th gear in r34 6 speed is 1 to 1 ratio.. and i have 4.11 diff gears now....

so its the same as r32 and r33 gtrs on the dyno in 4th gear....

next mods will be 1000cc inj and maybe greddy intake to see how much power is left....

but at present power level is great at around 700 engine hp from lowmounts is cool....

cheers...

Gav Mentor

Gav

Posted
Posted
5th gear in r34  6 speed is 1 to 1 ratio.. and i have 4.11 diff gears now....

so its the same as r32 and r33 gtrs on the dyno in 4th gear....

next mods will be 1000cc inj and maybe greddy intake to see how much power is left....

but at present power level is great at around 700 engine hp from lowmounts is cool....

cheers...

Dohh....sorry, not paying attention (of course 6 speed).

not considering a single throttle body conversion?

Sydneykid Grand Master

Sydneykid

Posted
Posted

Hi Mark, damn good result. Pretty much what we discussed, they make some boost at ~5,000 rpm, really get into their stride at ~6,000 rpm, make max power at ~7,000 rpm and still have plenty at ~8,000 rpm. They will be fun on a cool night, as long as it isn't raining. :wizard:

Gav Mentor

Gav

Posted
Posted

SK

Short of a stroker crank, is there anyway of spooling them up a little earlier (i.e. fattening the power curve a little)?

Do you expect that the HKS tubular exhaust manifolds will help with this? Head porting, bigger pipework, lower resistance IC?

5 to 8.5 k rev range is still street/track useable, but fattening it towards the low end will obviously make the car a lot more tractable.

Cheers

Gav

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