R34 G T T thresholds.

[Guest INASNT]

Originally posted by franks

c&v in sydney did the FC tune.

yeah, i guess it could be a little bit leaner 11.5 is still pretty juicy....from looking at your a/f there isnt much room for bad fuel is there? your not too worried about that?

not really as i always use 98 and the guys and dyno that tuned mine has a 480rwkw GTR running similiar a/f's and he knows what hes doing!

around 12.0 or so is perfect a/f for our cars!

[franks]

yeah, i wanna go as low as 12's...but even on some days i'll get check engine light appearing on high loads in 3rd or 4th gears...probably too advanced....

[Guest INASNT]

with power fc and those other mods u should see may more power than that!

i had 155kw@wheels with stock cooler and just zorst, s-afc and pod at 0.8 bar

[franks]

i had 151rwkw with half an exhaust, filter and 0.6bar...

a friend got 161rwkw bone stock, r33 series2 auto with a manual gearbox conversion *only* ?!?!?

moral of the story? comparing apples and oranges. as much as i'd like to compare it to your figures, i can't. On the same dyno, i could get two different readouts within an hour of each other...

[Clint32]

my car is tuned with the afr between 11.8-12.2 this is basically a streight line after the after it drops from running 14.4 in the light load stuff,

franks you would pick up about 15rwkw with a good tune, then some more with boost, get the fuel right and you may have to addjust the timing accordingly.

[Guest INASNT]

Originally posted by franks

i had 151rwkw with half an exhaust, filter and 0.6bar...

a friend got 161rwkw bone stock, r33 series2 auto with a manual gearbox conversion *only* ?!?!?

moral of the story? comparing apples and oranges. as much as i'd like to compare it to your figures, i can't. On the same dyno, i could get two different readouts within an hour of each other...

did u see the HPI magazine R34GTT project car?

they pulled near 200rwkw with basically the same mods u have but 12psi boost!

You should get your retuned man!

[franks]

yeah, i've seen it briefly, are you sure thats with the stock turbo or with the hiflowed one!?!?

i need more boost....

[MM2death]

What's a good afr for an R32 GTS-t. When i got mine dynoed, it was averaging around 11.5 until it got around 5000rpm, then it went up to 13. Is 13 too lean? Cuz APC said i should install a 550hp fuel pump.

thanks

[GTS-t VSPEC]

I think that 13 is too lean, but it depends where in the power band that it is occuring. Usually 12-12.5 is about as lean as you want to go, otherwise one lot of shit fuel and your in serious trouble.

They may say that your leaning out due to not enough fuel, either buy a bigger pump or fit a fuel pressure regulator.

See'ya:burnout:

[NismoR34]

Yeah, I recall the HPI r34 project had similar power to Franks, but it was in stock form then. *mental note to re-read that tonight*

[Guest INASNT]

Originally posted by nismoR34

Yeah, I recall the HPI r34 project had similar power to Franks, but it was in stock form then. *mental note to re-read that tonight*

yeah i think they said it got around 160kw@wheels in stock form.

I am sure they got around 200kw@wheels with the same mods as franks got. They only blew the turbo when they took it for a run on the track which was after all the engine mods were done, thats when they rebuilt the turbo.

[ed]

Originally posted by franks

yeah, i've seen it briefly, are you sure thats with the stock turbo or with the hiflowed one!?!?

i need more boost....

AVC-R :uh-huh:

[ed]

Originally posted by INASNT

yeah i think they said it got around 160kw@wheels in stock form.

I am sure they got around 200kw@wheels with the same mods as franks got. They only blew the turbo when they took it for a run on the track which was after all the engine mods were done, thats when they rebuilt the turbo.

is this all on the HPI's DVD/Video's?

[Guest INASNT]

Originally posted by ed

is this all on the HPI's DVD/Video's?

yep i think they documented it all on tape in the latest vids. But u gotta get all of em to get the whoel story from start to finish.

[ed]

I got 1-5 on DVD, just gotta get around to watching 'em

[Guest INASNT]

Originally posted by ed

I got 1-5 on DVD, just gotta get around to watching 'em

well the first few are only about 1 hr each so it wont take u long!!!

[MM2death]

Originally posted by GTS-t VSPEC

I think that 13 is too lean, but it depends where in the power band that it is occuring. Usually 12-12.5 is about as lean as you want to go, otherwise one lot of shit fuel and your in serious trouble.

They may say that your leaning out due to not enough fuel, either buy a bigger pump or fit a fuel pressure regulator.

See'ya:burnout:

Yeah thanks...i'm not getting enough fuel. What does a fuel pressure regulator cost (estimate)?

[GTS-t VSPEC]

You can get a Malpassi fuel regulator for about $200, I have one and is very good and easy to install. You can get a bigger one but that would only be needed for serious racing apps.

See'ya:burnout:

[Clint32]

MM2death it would be your pump not keeping up, a very common problem on 32s, get a bigger one. The pressure reg would not help as your pump cant pump the pressure required at the moment.

[MM2death]

Yeah that's what my brother said as well...

I'm still learning all this tech stuff.

thanks

scott