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

[markr34gtr]

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.....

[BU5TER]

awesome results Mark, you must be pretty happy well done

[Guest two.06l]

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

[meggala]

pretty good for a low mount set up

should be fun on the street with that kind of boost transition

[DoughBoy]

Nice peak power figure, there's still alot more left in those turbos! How much head work/flow did you do? Are you using 10+mm/280+deg cams? Redone the intake manifold? Using aftermarket exh manifolds? Single t.body?

[Gav]

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

[markr34gtr]

standard intake. step 2 cams 10mm...700cc sard inj maxed out.......nismo fuel pump maxed out...

ported my own head... just clean up...

yes we believe there is more from this low mount setup......

cheers...

[Gav]

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]

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...

[MidnightGTR]

Nice work Mark!

This car is an animal, cant wait to see it in the workshop sometime soon

[Gav]

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]

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:

[Angry]

Interesting results .. my friend is looking to buy GT Rs for he;s r33 gtr ..i'll pass the info on .. maybe it'll help make up he;s mind to buy em

Matt

[Gav]

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

[N I B]

With your hardware Gav your in for a wild ride with these Turbos even more so now with the new intake setup.

[Gav]

Yer Steve - expected so, just a case of "wanting my cake and eating it too"

[N I B]

I think we will get your bottom end just fine.

[GTS-t VSPEC]

Gav, Running your car in sounds like more fun by the minute;) I'll keep the revs under 9k for the initial run-in period;)

[Gav]

Gav, Running your car in sounds like more fun by the minute;) I'll keep the revs under 9k for the initial run-in period;)

Now I'm worried!

[GTS-t VSPEC]

I'll make sure the bonnet is shut before I drive off:bahaha:

I'm sure with all the extra flow-work going into yours that there should be a beefier mid-range.