How to choose the right turbo!

[gdalton]

You rock man thanks.

[APEXSER]

Originally posted by G-Forces

Sure thing I'll give you a URL of the initial draft and we can go from there.

Just let me know!

Louis

[G-Forces]

Originally posted by APEXSER
3. Hotshot Turbo Kit
This setup comes with a Stainless steel manifold <snip> It spools up somewhere in the 2500 rpm range and should create full boost in the 3000-3200 rpm range! The T3 turbo is capable of producing 300 whp!

See this where I kind of wanted to go. 300 easy wheel hp with the turbo mounted under the manifold but I wanted a turbo that could handle 300 hp at the wheels at about 80% of the turbo capacity. Would this still be a good setup? What percentage of its performance potential would this turbo be running at 300whp?

[APEXSER]

Originally posted by G-Forces

See this where I kind of wanted to go. 300 easy wheel hp with the turbo mounted under the manifold but I wanted a turbo that could handle 300 hp at the wheels at about 80% of the turbo capacity. Would this still be a good setup? What percentage of its performance potential would this turbo be running at 300whp?

You can get the T3 with the .63 A/R Housing w/ Stage III Turbine and Super 60 compressor housing & wheel and it *should* be able to support pretty close to 300 hp. You are looking right around ~280-285 realistically! If you go with the .82 A/R housing, it will be a little laggier, but it will insure that you hit 300 hp. The .63 housing is ideal for the street! It would be a great turbo. You can also get the exhaust housing Extrude Honed to help spool! At 10 psi, you should be able to make 225-240 hp. You will need the Cobra MAF though and 50 lb/hr injectors. Let me know when you are interested in getting the kit! I can try and eithe rpiece one together for less or get you the best price on the kit. I don't particularly care for the Bosch BOV and HKS Front mont intercooler that the kit comes with! I can possibley get you a better price on a different intercooler. Have you considered the GTiR setup on your car? The T28 along with some 50 lb/hr injectors, Cobra MAF, Walbro Pump, and Larg intercooler will be *NASTY* on the street!

[AznVirus]

well done

[G-Forces]

Originally posted by APEXSER
Have you considered the GTiR setup on your car? The T28 along with some 50 lb/hr injectors, Cobra MAF, Walbro Pump, and Larg intercooler will be *NASTY* on the street!

Thanks. I'm considering a LOT of things right now. GTi-R is one of them. Just doing the basic swap for now and that should hold me for a bit then getting the 50lbs, Cobra MAF and bigger intercooler later. Although I'd probably spring for a decent FMIC right off the bat with the GTi-R motor. I know it's more but...it's damn sweet!

[P10DET]

Originally posted by lloyd_nickens
please do. It is very helpful information for those of us who would like to get into that type of stuff

Try finding the December issue of Sport Compact Car.

[P10DET]

Originally posted by gdalton
What about the ecu, I know for max performance you would have to get one reprogramed or an new one all together but can you use the turbo with a stock ecu

Let's see.... How can I put this properly?........

NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO

[P10DET]

Originally posted by APEXSER
I am no expert on Road Racing , that is for sure, but I do know from what *I* have seen at tracks like Button Willow, a high hp vehicle with an FMAX kit would have too much power. I know that was the case with Mike Mager a couple of years ago. The power would kick in so harsh he ended up breaking his tranny.

While I wouldn't exactly call myself an expert, road racing is my arena and I think the problem is not so much the power, but how it's used. You can't just mash the throttle on a road course, you have to feed it in as the tires have traction available.

That said, I don't think the chassis are able to handle that much power very well other than in a straight line, so in a way I'm agreeing with you, but not totally.

Originally posted by APEXSER
I think the T25 would be a *great* road course turbo! Great for the straights, great for quick acceleration or passing, and quick spool out of the turns. A T25 will have very good mid range power! The T25 will more than likely not make more than 220 hp, so you won't have this surge of power out of teh corners. *I* think it would be great! The T25 is very predictable in the power band! I have a hard time imagining a T25 breaking some Road Race tires loose, especially when they are warmed up!

I think the T28 or T3 would be a little better. Basically, you don't want to run out of breath at high rpm like the T25 does. Other than that, keeping lag to an absolute minimum is very important. You want to know when the power is coming on, else you can end up losing traction and possibly spinning or worse.

[P10DET]

Originally posted by G-Forces

See this where I kind of wanted to go. 300 easy wheel hp with the turbo mounted under the manifold but I wanted a turbo that could handle 300 hp at the wheels at about 80% of the turbo capacity. Would this still be a good setup? What percentage of its performance potential would this turbo be running at 300whp?

Jason, you want the turbo that Rob Cadle spec'd for Ray Kawski. It's based upon a T28, but much better. Totally kick ass. It uses a GTi-R manifold.

[APEXSER]

Originally posted by P10DET


Jason, you want the turbo that Rob Cadle spec'd for Ray Kawski. It's based upon a T28, but much better. Totally kick ass. It uses a GTi-R manifold.

The only thing different is the Compressor housing! Rob Cadle likes to use the T04B compressor housing from the S14 turbo and put it on the GTiR turbo! That is it!

[G-Forces]

Originally posted by APEXSER


The only thing different is the Compressor housing! Rob Cadle likes to use the T04B compressor housing from the S14 turbo and put it on the GTiR turbo! That is it!

As long as it fits under the manifold I'm cool with it. I don't like the configuration of the F-max kit. To obvious if you know what I mean.

[G-Forces]

Originally posted by P10DET


Jason, you want the turbo that Rob Cadle spec'd for Ray Kawski. It's based upon a T28, but much better. Totally kick ass. It uses a GTi-R manifold.

I don't know the specifics of Ray's turbo but I know I'd like the turbo that was spec'd for the B15 turbo that Mike helped build. It might be the same one but 300whp is about all I'm looking at.

At this point I'm thinking of a straight GTi-R swap (I know, I know) then adding the injectors, fuel rail, MAF, tuning in a second stage for about 300whp.

But plans change like the wind so this might change in a couple weeks.

[2002G20Racer]

Does the Blue Bird setup work on 2000+ G20s? The reason I ask this is because of the differences in 99 and lower SR20DEs's and the newer SR20DE's.

[G-Forces]

It would fit fine. Working out the ECU problem is probably the biggest hurdle.