Need Help With My R34 Gtt Plz

[YauQ]

hi, all, I so just bought my second skyline last month, its 99 R34 GTT. the car came with a 3 inch FULL exhaust, a hks filter and teinz coilover suspension. Last week IS Motor Racing at Rockdale supplied and installed a G-readdy electronnic boost controller for me, did a tuning on the same day.(139.5 max power at wheel). The guy told me my car is pretty much in stock condition, and all the stock R34s are between 130kw - 150 kw, only brand new can do 206 kw, for a 10 yrs r34, any where between 130 - 150 kw is normal. then During the tuning, he tested 0.6 bar first, was ok. then he tried 0.8 bar twice, failed twice, the power or boost was like goes up then drop down. what he explained to me was the stock computer will cut the fuel off if over boosted and strongly suggested me to buy a power fc. At the end of day. the guy setted 0.6 as low boost, and 0.7 or 0.65 as high boost...

we all know 1 bar =14psi, so 0.6 = 8.4 and 0.8 = 11.2

my questions are

1. is 139.5kw sounds normal with above mods?? i searched Autospeed website, says there stock R34 can do around 140-150kw, then plus exhuast and filter can do 160-170, and 180-200 with power fc on top of all these. 139.5kw is just fxxk sad and much less, though i heard every dyno machine is different, differnt dyno machine can give you different KW.

2. anything wrong with the tuning?? stock computer should allow u to boost to a safe level without fuel cut, i searched formum, most of you can boost to 11 or 12 psi with same mods as i have.

dont know what happened to my car, really sad now, please help, thx for reading this, ai~~~~~~~ paid $18000 for a piece of shit

[R32 Driver]

139.5rwkw is 186.93rwhp

not bad really.......

throw on a fmic and get a safc2 piggy back ecu if your on a budget

or get a full ecu, will see alot more power

and 1 bar of boost is 14.7 psi

example

my car went from 90rwhp to 245rwhp with just a tune

Edited February 21, 2009 by R32 Driver

[GUN_METAL_GTR32]

definately get a good cooler.

ecu would also be a good option (budget)

[wolverine]

edit:

Edited February 22, 2009 by wolverine

[Mattw_83]

hi, all, I so just bought my second skyline last month, its 99 R34 GTT. the car came with a 3 inch FULL exhaust, a hks filter and teinz coilover suspension. Last week IS Motor Racing at Rockdale supplied and installed a G-readdy electronnic boost controller for me, did a tuning on the same day.(139.5 max power at wheel). The guy told me my car is pretty much in stock condition, and all the stock R34s are between 130kw - 150 kw, only brand new can do 206 kw, for a 10 yrs r34, any where between 130 - 150 kw is normal. then During the tuning, he tested 0.6 bar first, was ok. then he tried 0.8 bar twice, failed twice, the power or boost was like goes up then drop down. what he explained to me was the stock computer will cut the fuel off if over boosted and strongly suggested me to buy a power fc. At the end of day. the guy setted 0.6 as low boost, and 0.7 or 0.65 as high boost...

we all know 1 bar =14psi, so 0.6 = 8.4 and 0.8 = 11.2

my questions are

1. is 139.5kw sounds normal with above mods?? i searched Autospeed website, says there stock R34 can do around 140-150kw, then plus exhuast and filter can do 160-170, and 180-200 with power fc on top of all these. 139.5kw is just fxxk sad and much less, though i heard every dyno machine is different, differnt dyno machine can give you different KW.

2. anything wrong with the tuning?? stock computer should allow u to boost to a safe level without fuel cut, i searched formum, most of you can boost to 11 or 12 psi with same mods as i have.

dont know what happened to my car, really sad now, please help, thx for reading this, ai~~~~~~~ paid $18000 for a piece of shit

So how the f**k did my completely stock r33 gtst s2 dyno 157kw atw. Took it to another dyno and it produced 155. i thought r34 produced more than 33's??

[paulr33]

hi

206kw = flywheel figure, its not power at rear wheels. 206kw at rear wheels would be around 150rwkw

140rwkw for a bog stock R34 GTT sounds about right

[paulr33]

So how the f**k did my completely stock r33 gtst s2 dyno 157kw atw. Took it to another dyno and it produced 155. i thought r34 produced more than 33's??

numerous things

different settings

different dyno

different ramp rate

different air temp

and so on

~10rwkw is nothing to worry about

it is a reasonalbe assumption a bog stock r34 GTT would make more power than a bog stock R33

this assumes same dyno, same dyno, same operator, same settings, same environment

the ones you are comparing would not be the same, therefore whilst useful to compare in a ~ range, not a %100 comparison science

[EJD001]

have u changed the plugs since u had the car??

I found that that made the single biggest difference with my own car... was 138kw.. and it jumped to 161kw... and mine is a stocker aswell

[Muz]

my questions are

1. is 139.5kw sounds normal with above mods?? i searched Autospeed website, says there stock R34 can do around 140-150kw, then plus exhuast and filter can do 160-170, and 180-200 with power fc on top of all these. 139.5kw is just fxxk sad and much less, though i heard every dyno machine is different, differnt dyno machine can give you different KW.

2. anything wrong with the tuning?? stock computer should allow u to boost to a safe level without fuel cut, i searched formum, most of you can boost to 11 or 12 psi with same mods as i have.

dont know what happened to my car, really sad now, please help, thx for reading this, ai~~~~~~~ paid $18000 for a piece of shit

The 206kw quoted by Nissan is not rwkw but flywheel kw. Your R34 is probably a little low and you are absolutely correct in that different dyno's produce different power figures. As an example I have Nismo FMIC, Nismo Injectors, Nismo fuel pump, Nismo reg, PFC, Z32 afm, hks 2535, Tomei cams, Apexi pod filter and full exhaust system from turbo back and produce 210 rwkw @ .6 bar on a Mainline dyno but 247 rwkw on a Dyno Dynamics dyno. It's all in how they set up the dyno. Like the other guys say, get a good FMIC and ecu and then you end up like the rest of us ..... just feeding the addiction!

cheers and enjoy the ride

Muz

Edited February 22, 2009 by Muz

[FLN75S]

Yeh i would say get yourself a Front mount its prolly running quite rich once you start winding the boost up the computer just dumps more fuel to keep things safe. Doing just that made over 25hp difference on my 33 and i was able to run a little bit more boost it ended up running 178kw at the rear wheels on 10psi.

I have a 34 now running 8.5psi with a FMIC full exhaust Apexi pod filter flowed turbo and the same Greddy boost controller at the moment its running 173kw at the rear wheels but should be able to get much more just tunning the boost controller once i work out how to set it right.

Out of interest what settings did he put on your boost controller to get the max boost your running?