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R33 GTS 511rwhp-Stock injectors

N I B

By N I B,
in Engines & Forced Induction

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IMACUL8 Veteran

IMACUL8

Posted
Posted
I think you can in alot of ways. I think you read to many magazines imacul8.  :werd:

I think your heads to far up SST ass.

I looked at ecu's at length when buying one for my last car. Comparing the autonics, motec, apexi and wolf. So i actually do know something about them.

Cubes Grand Master

Cubes

Posted
Posted
472bhp @ 18psi on SST Dyno Shootout Mode

11.13 @ 126.93 1.64 60ft on Full Slicks 16/10/04

11.67 @ 120.64 1.69 60ft on Radials10/04/04 DC

Got Boost,

Just looking at the times and power you have there.

I remember MattR's old RB25 powered R32 GTS-T running slicks. That ran a 11.3 @ 122mph with a TRUST TD06-19C Turbo, Microtech ECU, Custom Plenum. It made 318rwkw.

472bhp is approx 352rwkw. It appears around the mark.. :)

This is a link from the http://www.japanesemotorsport.com.au/movies.htm web page.

http://www.japanesemotorsport.com.au/white32gtst.mpg

fane Mentor

fane

Posted
Posted

Im not expert that is why im asking questions, can someone answer this?

The difference between the 2 dynos is hub vs rollers....

and one reads PS and the other reads HP

so tristan actually got 511ps = 504hp but that aint fk all so who gives a sh!t

what my real question is, because hub dyno cannot slip at the wheels, could it be slipping on the roller dyno back @ sst a bit to give it a lower reading??

can someone fill me in....to me a hub dyno would have to be more accurate if it was obviously a DD dyno...

tomj Veteran

tomj

Posted
Posted
This threads just turned to shit now. To many ****heads with nothing good to say. Just jealous ****s.

got nothing to do with jealousy simon and you know it.

ppl want to know facts, not be waved a wank showoff figure and then be told oh we dont want to tell you how it does it.

either share the knowledge or dont state it to begin with.

i know enough to get me by and this thread helps no one.

R32-GTS Mentor

R32-GTS

Posted
Posted
got nothing to do with jealousy simon and you know it.  

ppl want to know facts, not be waved a wank showoff figure and then be told oh we dont want to tell you how it does it.

either share the knowledge or dont state it to begin with.

i know enough to get me by and this thread helps no one.

TJ u know there is no secret. It has a wolf pnp and a gt30 . you know this so dont make up silly things.

PranK Grand Master

PranK

Posted
Posted
handed out any warnings yet ash :jk:

dont know if ash has, but i will.

guys, theres a tonne of info in this thread, its awesome, but just too much testosterone - chill out, discuss things nicely or i will close the thread and let ash warn as many of you as he wants.

Cheers,

Christian

Sydneykid Grand Master

Sydneykid

Posted
Posted

Hi guys, I prefer to deal with facts that I can see, and I have a dyno graph that shows 438.7 rwhp, so I will work with that until I have some other facts.

Assuming the car has the standard gearbox and diff ratios and the usual tyre diameter, it makes max power at ~5,900 rpm. To me this seems a little low considering the cams have been upgraded. I would expect around 6,250 to 6,400 rpm for max power, so this in itself is an interesting result. The outcome of that is a shortening in the useable rpm range, which will adversely affects its times.

To run times commensurate with the max power, a car has to have at least 50% of the max power available after the upchange (1st to 2nd being the widest ratio change in a Skyline gearbox). The dyno graph shows 420 rwhp at 6,500 rpm and 160 rwhp at 3,500 rpm, this is less than 40% (38% in fact). So in my ever so humble opinion, the car will never run the times in line with its max power until the resulting "hole" in the acceleration curve is fixed or a close ratio gearbox is fitted.

The rather savage drop off to ~100rwhp at 3,000 rpm will make getting it off the line extremely difficult, I suspect it will either be bog and die or wheelspin city. It will need someone of reasonable experience and quite a few runs to get anything like its best. Even then it will still be a compromise.

The average power (3,500 rpm to 6,500 rpm) works out at 345 rwhp, which is very respectable and only around 20-25rwhp less than I would have expected.

Bottom line, based on the max power (438.7 rwhp) it should do 11.6/7 at ~125 mph, but my guess (and it is a guess) would be lucky to get into the 11's at all.

My 20 cents worth.:rofl:

PS; it always makes the power curve look nice when you start it at 80kph (~2,900 rpm) and stop it at 180 kph (~6,450 rpm).

Cubes Grand Master

Cubes

Posted
Posted
SST is a workshop and as such will not tell any of our secrets but wiil make the cars avalable to any East coast shop thats in town.Magic1 is driving his car around for work as was on sat.

If others cant match this power then try harder.

Magic1 wanted as close to 500 as pos for PAS so we should be pleased he got what he wanted.

R32-GTS... This is the post the caused the problem.

If its as simple as running huge fuel pressures then say so.

Instead of just stating.. 'stock injectors' state stock injectors running x amount of base fuel pressure with a rising rate reg. that runs at 1:1 or something.

R31Nismoid Grand Master

R31Nismoid

Posted
Posted
East V West net wars.How sweet.

Please Ash stop this thread and after your WA visit you can be the East coasts judge of fact.

enough is enough.

I'll be coming to WA, with (or without my car it seems) and ill see what the story is first hand.

thread closed - ash

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