Thread: UN dyno day #s updated with video

Also, I am debating going up one size on the turbo. Since I don't want to have to push more than 25-26psi on my tune, I think a step larger on the turbo will make huge gains in power.

The other cars there have 60-1 turbos. They make awesome power on low boost levels, even though they do have better tunes than I do. But after reviewing the timing maps I can say that the timing they are throwing at the other cars is about the same that JWT is throwing at mine. I have about 20* timing at 7500rpm and it hits about 21-22* by 8000.

The 60-1 they are using have a GT35r compressor, mated to a stage 5 turbine. The stg5 turbine is a 71mm inducer. The GT35r has a 68mm inducer. So the turbine size on the 60-1 is big, but a 76 trim?

The SC6152e also has a huge turbine compared to my T31's 60mm inducer. 76mm! Perhaps the small turbine is holding the engine back a bit. I love the quick spooling GT3076r, but I think a step up would have huge gains. Even the smallest SC61 is much bigger than the GT30r.

I may end up with a larger turbo in the end, but I am going to get water/meth injection first and see what I can do with that. Ultimately though, at this altitude, the T31 turbine will not be able to flow what I want. But even so, it is a ton of fun on the street! 420whp on the dynomite has got to be around 480whp on the dynojet. Who knows?

But if I do the upgrade I may do this:
Garrett GT3582R (aka GT35R, aka GT35/40R) Bearing Turbo : atpturbo.com
with a 1.06 T3 housing divided.

Or maybe a borgwarner turbo.

Wow... just f*ckin' wow. Coheed if I could duplicate your setup in my 94 that would for me be the ultimate B13. Nice vids. I'm sure if I rode in your car the NA boltons would be gone from my VE within days and I'd be sourcing out a nice BB turbo with as good of spool as yours. Awesome job.

Thanks man. I appreciate that. It has taken 4 years to get the car where it is now. The time can def be seen when you go for a ride. You see that think kick at 4K in the video. It just rips! Everything I have done to help improve the powerband and provide the most responsive setup. The dyno just doesn't do it justice. I would love to try out a GT35R TS and see how it compares. But if I don't like it, I would prob go back to this turbo. It sounds amazing, and spools great. But the VE still seems choked up.

Get a Billet Wheel PTE Turbo new technology and more variants of sizes i think they are better than the old school GT35 or SC61 wich use the same compressor wheel just my .02
All I can tell you from your graph is that you wont loss a huge ammount of spool and you should gain a lot of top end with a bigger turbo... Since to get to the numbers you are looking for you will have to push the TSGT30 to the limit and with a bigger turbo you wont... You are not taking advantage of the VE head with that turbo....

Exactly what I am thinking payu. If I wanted just 400whp, the GT3071r is a much better suited turbo for that. the GT3076r will make 450whp, but it just takes a lot of boost to do that. My last dynomite dyno was 380whp and the dynojet said 440whp, so perhaps I am at 475ish on the dynojet. Who knows. I want to go to the dynojet and see, but that will be in a little while.

I love the way the car drives, I wish I had a water injection kit so I could run 24psi every day.

The VE loves big exhaust wheels. The 60-1 turbos on my friend's cars make over 400whp on a measly 14psi of boost, where I need about 20psi to do that. The exhaust wheel has a big impact on the way the VE makes power, perhaps this has to do with the smaller exhaust valves? But I know a GT35R would get me where I want, but I want to document the differences in the way the car feels.

Every GT35R car I have EVER been in feels really laggy. Hopefully the TS setup will help with that response.

borrow an standalone get your tune then send the map to jwt......

Street legal car

what cams where the 60-1 guys runniing

STOCK 2.0 VE cams. I am running SR16 cams.

its interesting your torque drops off now where it didnt this time last year. cant remember the set up though.

its seems the turbo is running out of puff and going by the fact you ran your boost controller on max and couldnt get anymore boost out of it i would say its turbine side.

A cool turbo that might work well and you can machine your curent housing to fit would be a 35r with a pte 5857 comp wheel. I am sure precision would make one up for you

Last year was same setup, on the motor with melted pistons. Stock 2.0 cams. Now I have a a/w setup with SR16ve cams revving higher on a fresh motor.

I am debating on a TS HTA3582r. ATP sells a TS T3 1.06 housing that would work on it, but a T3 1.06 is still like running a .63 open housing. The transient response is improved, but spool time is very similar. I wish they had a 1.22 T3 TS housing, or perhaps I can lightly port the 1.06 to flow a little better.

I like the HTA3582r. Guys say it spools faster than a GT35r, yet makes more power. I think the slightly smaller, redesigned GT35R compressor wheel mated to the 68mm turbine is a really good combo. Garrett makes a lot of their turbines too small imo, but they are really efficient, and the higher trim wheels still flow good enough to match the compressor.

Since I want the fastest spooling, quickest response GT35R out there, I think the HTA3582r is the best thing. I have toyed around with using a 6262 also. But i dont think they make a TS housing for it, and I have heard it would be laggier than the HTA82.

Torque drops off big time, but I don't think the cam change has much to do with that. Datalogging still shows injectors near max duty cycle and MAF voltage just under 4.9V, so I'm not sure that going with a larger turbo will make that much more power. I just want to get the boost levels down a little bit.

But everyone seems to have really good results with the 35R based turbos when it comes to the VE motor.

I love my 35R. : )