218.7 Rwkw On Stock Turbo !

[fresh]

hey all

got my car dynoed a few weeks back but haven't had time to post up the sheet yet.

thanks to paul from hunter thomas automotive in newcastle who did an awesome job, i was hoping for about 200ish but 218 is awesome

mods r as follows

FMIC

fuel pump & reg

PFC

AVCR

HD Clutch

still running stock injectors, air intake, AFM, and everything else which hasn't been changed

[d-d]

V. nice - im impressed!

[raz0r$harP.UK]

Nice little spike in power around 6krpm

[mikymouse]

what reg you running? how much boost? is it a safe tune? what duty cycle are the injectors operating at? pod filter? exhaust (cat-back)? thanks.

[fresh]

sard FPR, unsure which model. the lower of the 2

running a little over 1 bar, having been using it day in day out so far without problem.....touchwood

yes, good looking AFR curve

injectors hit about 92% duty cycle

using stock air intake

exhaust yeah sorry 3" turbo back

[Dose Pipe Sutututu]

what reg you running? how much boost? is it a safe tune? what duty cycle are the injectors operating at? pod filter? exhaust (cat-back)?  thanks.

<{POST_SNAPBACK}>

From those figures I believe

- 12PSI

- Stock rock ECU

- Turbo back exhaust (bashed out cat? )

yer? correct me if I'm wrong

[mikymouse]

hmm that's pretty impressive. is this a series 1? have the engine internals been touched?

[mikymouse]

Stock rock ECU

says power fc

[R31Nismoid]

seems every week people make more and more power with a stock turbo...

[krzysiu]

dont know if its just me but it seems too good to be true. Your not from Perth by any chance?

[Busky2k]

I just love how quick the RB25s come on boost... For the power its excellent...

[Sydneykid]

Oh dear.........let's do some numbers.........

Standard injectors are 370 cc's

92% = 340 cc's

340 cc's in a 6 cylinder = 340 bhp

340 bhp = 254 kw

less 60 kw for losses in an R33GTST = 194 rwkw

218 rwkw would =12% increase in fuel flow

12% increase in fuel flow = ~40% increase in fuel pressure

standard fuel pressure is 36-38 psi, so +40% = 53 psi (above boost)

53 psi plus 1 bar boost = ~68 psi

I sure as hell hope you are not running 68 psi through the standard fuel lines and clamps, that is asking for trouble.

cheers

PS; 1 bar on the standard turbo, tick.....tick......

[fresh]

dunno about fuel pressure and how much its been ramped up

no not from perth, tuning was done in sydney by a local tuner

[JaFF]

do you run 1 bar all the time or do you have a boost controller with high and low boost settings?

1 bar wont last long on a stock turbo I've heard.

[mikymouse]

less 60 kw for losses in an R33GTST

just curious how this figure was derived.

[Bobjones]

The general rule is about 20-25% drive train loss...I think Sydneykid has smacked it in the middle with about 23%. AWD would be slightly more...

[R31Nismoid]

just curious how this figure was derived.

pretty run of the mill mate, search around. Lots of info.

Drivetrain loss is lies between 25-30% from the motor the the rear wheels.

SK have used approx 25% in his calc of 60kw

Cheers

Oh. and yeah, turbo wont last @ 14psi, not thats it'll be doing much above 10/12 anyhow.

[Blitz]

Over 1 bar? assuming you are in fact using a standard turbo I would start budgeting for a new one as it will not last long.

[The Mafia]

also, above 1 bar equals a nice amount of hot air being rammed into your engine.

I'd be keeping an eye on that knock sensor..

and and for your info, I am running 11psi, and got 210rwkw. Why so much more boost just to get a measly 8 rwkw, and risk blowing your motor \ clutch \ turbo ?

[r33boi]

dont mean to take over this thread, but just a quick question.. i got my car on the dyno today to see how much i got from the new apexi cat-back.. its a series 1 r33 GTS-T AUTO with just an apexi power intake kit and an apexi cat-back echaust.. it made 155 RWKW, does any one know if thats any good considering its an auto and pretty much stock?.. what would that be KW @ flywheel instead @ the wheels?... and does any one know how much KW a stock standard auto R33 has?.. thanks for the help.