Insane Result From Gcg High Flow 274.2 Rwkw, 16 Psi

[STATUS]

As posted it was a stock AFM, i can vouch for this as i was there

98 octane.

Drove the car myself and it pulls very hard & still remains responsive.

Dyno is not happy, it is a 2008 model Dyno and has been calibrated recently, seems every time someone makes big power that people find hard to believe then the dyno must be happy.

Bas made similar power with this exact turbo on Trent's dyno.

As Ash stated earlier Mat tuned past the stock AFM and bumped up fuel pressure, not the safest thing to do but injectors will be upgraded soon.

Mat is not guessing when he tunes, he tunes very well and has proved this with several other cars. We managed over 250kw on 17psi (GT3071r) with my SR, no cams and tune is fairly safe. I never get over 20 knock even at the track and my AFR's are spot on (full power, cruise, and idle), hopefully Mat will jump in soon if anyone has any other questions Mat??

yeah i tried to quash that in my thread above, and the power thing. Ive found the new GCG highflows to deliver the goods up top. Bas is one of about three we have tuned in the past 6 or so months and from memory was 268 or 269 (dont have it on this comp).

[femno]

Well we did what we could with what we had, theres not much more than that to it, but yes we all know the circumstances are not ideal.

Yes the AFM numbers were tweaked to make it work but the tune is still very safe.

The car runs a bucketload more fuel pressure from stock which gives us a little bit of headroom, which again is far from ideal but has proven to work just fine in the past if correctly executed and this case is no different. Having an extremely clean and well maintained fuel system is paramount, moreso than usual.

The dyno is not a happy one, many cars have been in and around to dyno days and such and have made the same figures. To help back that Bas made very close to the same figure with this very turbo, on Trents very reliable hub dyno. We do believe this turbocharger is a freak one! The happy dyno argument is one thrown around without much thought sometimes.

Cheers for the positive replies Trent and others.

[Drift SX]

yeah i tried to quash that in my thread above, and the power thing. Ive found the new GCG highflows to deliver the goods up top. Bas is one of about three we have tuned in the past 6 or so months and from memory was 268 or 269 (dont have it on this comp).

269.9kw, i remember the day he took me for a spin after you had tuned it, i was very impressed, it was an animal! Very impressive turbo and another top tune.

[R31Nismoid]

Just need to run the MPH to back it up

[joeyjoejoejuniorshabadoo]

[offtopic]

trent..... empty your pm's bish!

[/offtopic]

so when you tune past a stock afm's capability, its rough while its building boost but then all good at full boost?

[Granthem]

Seems rather high.

Makes my setup look useless

Take it to the strip, and see if your MPH backs up the 270rwkw figure

[Birds]

Comparing legitimacy of power figures based on quartermile times is a bit iffy IMO...way too many variables involved and dyno kings/queens don't always produce the goods cause many are top end tuned. Unless you were suggesting to test whether his 270rwkw is a useful 270 or not?

This is a great figure, would like to achieve something similar when I go high flow

[l0WRB]

i agree take it to the strip and if u dont get 115-120mph thru the top end then i call bullshit..

either way nice power figure.

birds u said it in one. many are top end tuned. there for if he really has 270rwkw 115mph-120mph regardless of his 60ft times.. he should reel the top end in in 3/4th...

Edited October 27, 2009 by l0WRB

[Granthem]

Comparing legitimacy of power figures based on quartermile times is a bit iffy IMO...way too many variables involved and dyno kings/queens don't always produce the goods cause many are top end tuned. Unless you were suggesting to test whether his 270rwkw is a useful 270 or not?

This is a great figure, would like to achieve something similar when I go high flow

Well its only a hi flow. So with 270rwkw peak, and probably well over 200rwkw for the majority of the revs... you would expect figures well over 110mph over the 1/4 i would think.

[l0WRB]

granthem mate when u heading to track to race ya car?

fri nite is next tnt.. keen? lol wouldnt mind lining up against ya sexy beast

Edited October 27, 2009 by l0WRB

[VB-]

quickly;

what happens is the afm will hit 5.12v or whatever at say 5000rpm at 13psi, anywhere above this boost level the ecu will trace along the same line as it did @ 13psi so say at 17psi the ecu still thinks its running 13psi. To over come this you need to tune the 13psi line for 17psi therefore at 13psi you have the same timing and fuel values.... this means it is rich and retarded from say 12-16.5psi....

yeah this bit i left out, at 3/4ish throttle it will run stupid rich. reason i didnt mention it was, i did see once, a tuner that had logged his daily drving/thrashing over a prolonged period, and i think there was two or three columns, just below full load, that the ECU almost never went into, it just wasn't an area of the map that got used, unless it was quickly passing through it. although this is only one persons results, it stuck in my mind and i like it

obviously its not the best way to do it, but with limited resources, i dont think its as bad as most people think, although my experience is pretty limited in this area. heres a question for you trent, do you think YOU could tune a skyline with a stock AFM and injectors, that could make 260-270rwkw and hold together? ie, it may die from bad fuel/low fuel pump voltage/boost spike, but the tune itself would not be responsible for popping the motor. or do you think you just cant tune it that far passed its scope?

Edited October 27, 2009 by VB-

[STATUS]

yeah this bit i left out, at 3/4ish throttle it will run stupid rich. reason i didnt mention it was, i did see once, a tuner that had logged his daily drving/thrashing over a prolonged period, and i think there was two or three columns, just below full load, that the ECU almost never went into, it just wasn't an area of the map that got used, unless it was quickly passing through it. although this is only one persons results, it stuck in my mind and i like it

obviously its not the best way to do it, but with limited resources, i dont think its as bad as most people think, although my experience is pretty limited in this area. heres a question for you trent, do you think YOU could tune a skyline with a stock AFM and injectors, that could make 260-270rwkw and hold together? ie, it may die from bad fuel/low fuel pump voltage/boost spike, but the tune itself would not be responsible for popping the motor. or do you think you just cant tune it that far passed its scope?

Personally i wont temp fate. soon as injectors get to 90% on std rail pressure i pull the pin. I hate regs and only use them where it is required ie aftermarket rail etc. There are plenty of people that do it and have no issues but i just wont, its a personal preference more than anything.

[Granthem]

granthem mate when u heading to track to race ya car?

fri nite is next tnt.. keen? lol wouldnt mind lining up against ya sexy beast

I was planning on going but I have uni exams this weekend. So I had best be sensible.

That said, I will be finished all uni by the next one, Friday the 13th of November. And I'll definitely be doing an oil change etc and have it prepped and ready for that one. Can you make that date?

I have the feeling you are gonna munch me in top end lol... 115mph is fairly cookin!

[l0WRB]

yeah man november 13th is heaps better for me.

yeah 115mph that was at willowbank

who knows what ill run at beneraby lol

gotta dodge the kangaroos and koalas hahaha.

ill send ya a pm closer to the date we organise to head up 4 it!

[Strik3r]

jus, you coming down to the SAU drag day ? Would be good to catchup again.

[l0WRB]

hey bro nah i cant make it!!!! i was put down 4 it, but mrs 21st bday is on the 12th.. so i gotta do the right thing

Edited October 28, 2009 by l0WRB

[Ultimategtr]

I read the whole thread - Congrats! Full credit to the tuner. Cant wait to see a full tune on some bigger injectors.

[Russman]

I drove it. I believe the number. Good work Dano and Mat!

[joeyjoejoejuniorshabadoo]