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

[Sydneykid]

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

Hi Gav, this is pretty much the same result others around the world have achieved with 2.6/2.7 litres and GTRS's. I didn't tune Mark's car (lucky him) but it is very comparable. Personally, for what I would use the car for, I would have gone to 3.1 litres but for Mark's purposes I reckon it will be great.

[markr34gtr]

we can make them spool earlier with adj the cam gears... maybe 400 rpm earlier but of course the top end flattens out...good for street driving not what i want....

cheers..

[N I B]

What we are doing now will do wonders but you will have to wait to see what it is.

[markr34gtr]

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:

yes sat night was on the way to the track and it was raining.... not happy....

cool night air it will love.... yes...

wed night will be the test.....

thanks for your input to my build up...

cheers...

[N I B]

Pleased to see that GTRs can produce the same intake temps that a GTS can.

Nice power anyway.

[offitstits]

hey mark i am on the way to installing these turbos on my r32, and from people i have spoken to have said these turbos should be good for about 480-500rwkw with all the supporting hardware?

[offitstits]

and by the way was that a 4 wheel drive dyno or two?

[blk180]

it say rear wheel horse power

[markr34gtr]

last dyno run was 550hp at all 4 at 27psi on c16 fuel.....thats about 400 plus kw at all 4.....

that was with motec ecu....

hope this helps.....

[600hp]

Thanks for that.

also what was your power before C16, because i would like to try some C16 and i'm wondering what sort of power i might get.

we made 332kw at all four at 21 psi. i would like to see 400 at all four.

would you think that would be possible with the diffences that you saw.

cheers.

[Marko R1]

Hi Mark,

I just picked up my car literally 2 hrs ago

Just installed a set of these gtrs's on my r32 gtr, on 15psi it is making 304awkw.

My tuner wants to keep the boost conservative until i upgrade my exhaust from:

'2inch front pipes/3inch cat back'

With my new veilside system:

'2.5inch front pipes/3.5inch cat back'

I can then run 20-25psi depending on what i am after...

Is your bottom end standard?

Marko.