how much boost for an auto r33 gts-t..helpppp!!!

[hippy]

i keep hearing the auto will die after about 180rwkw ... so don't go to far unless you've saved up for a manual conversion ... i've never checked my timing .. how do i do that ?? does it increase max power?

[hippy]

i'd also like to know if anyone is running a bigger tranny cooler

[knore]

same, i wouldnt mind knowing.. and then advancing my timing a little too

wont touch a thing unless i can get a definative run down on how-to

[skylineakt]

Auto Skyline with 10-11psi, 3' cat back and pod = 136 rwkw. Just got it dyno recently and haven't had any problem boosting to 10 psi.

I don't think it is the auto box you have to worry about just yet, but more you turbo because of the ceramic thingy. I think it depends on the condition of your turbo, not long ago I read another thread that some guy blow up his turbo and he was running the same boost as everyone else here.

[Cecam]

If you search this forum (or SDU's for that matter) you'll find quite a few threads on how much boost to run on an R33 turbo, about 12psi seems to be as high as you wanna go is the general concensious (sp?) I think. Some turbos simply last thou even at 18psi plus, where as I've seen some fail at 12psi... back pressure, heat, clogged oil or water lines, theres a few factors involved.

As for setting the timing, on an R32 and possibly the (series one) R33 theres a little loop of black wire which goes into the ignition amp, this is for coil/cyl 1 and some timing lights will work off that, but its not very accurate. Removing your centre cover to get access to the coils, and then lifting coil 1 is the better way. You just put a short HT lead between the coil and spark plug and use a timing light off that. Much more accurate. Factory timing should be about 15 degrees BTDC.

My first (R32) Skyline wouldn't go past this without detonating, my second R32 Skyline would run 20 degrees even at 1.1 bar without issue. What my R33 is running I have no idea as my timing light packed a sad I just turned the CAS slightly counter clockwise and listened carefully for any pinging... I'll check it properly later but the quick and nasty way is advance till you hear it ping then back it off slightly.

Btw, remember to keep the coil grounded when checking the timing when using the HT lead. You will also need to unplug the TPS definately in an auto, unsure with a manual, but I think thats still the case.

[Cecam]

0h yeah, auto's should be measured in Drive and not Park as well....

[hippy]

such low numbers for those mods ... 136rwkw ... i've seen manuals get 180rwkw ...

[4door_Sleeper]

My auto runs well at 180rwkw (a bit of a disapointing fugure)

I run 13 PSI, a PFC, FMIC, 3" exhaust and rising rate reg. My injectors are now at 70% (so i have plenty of room to increase power)

I am hoping a HKS2530 turbo will get me a lot closer to 250rwkw. I will also include a trans cooler and an electronic line pressure switch to make for crisp shifts and a cooler trans.

[knore]

such low numbers for those mods ... 136rwkw ... i've seen manuals get 180rwkw ...

think you got something mixed up, dont think ne r33gtst with cat back and pod filter at 10psi has 180 kw at the wheels

more like 150-160 max

[hippy]

i dunno .. i've seen some high ones ... even so ... i'm still dissappointed ... but i'll get it dynoed and tuned soon just to see

[Guest RedLineGTR]

it also really depends on the dyno..

[ron]

dont forget that you will always have less power through stall converters compared to clutchs for manuals.

eg your average 160rwKW should be 175 through a manual trans.

i am running 9 PSI on mine with 170rwKW. running rich as well as i have stock ECU.

auto, but mind you. SHE is a bullet

[knore]

Yes, but also counter in the fact that Auto's have better Diff ratio or is it compression ratio, shit too many lost brain cells

[Guest RedLineGTR]

Auto's have better Diff ratio

[4door_Sleeper]

Anyone know the diff ratios for an auto (and a manual)?

I thought the auto had a lower diff ratio (good for top end speed but sh*t for quick take-offs.

[Guest RedLineGTR]

do a search on some auto thread i think i read something in those a little while ago when checking out info on diffs etc

[skylineakt]

Well to give you an idea hippy, the dyno I went on my car made 136 rwkw, but I saw an R34 GTT (manual) stock on the same dyno and made 115 rwkw.

Then another R34 GTT went on with exhaust only I think and made 125 rwkw.

So I can't be too disappointed with my figure.