JBrown

hey guys currently undergoing a 2.8l build now for the turbo I was thinking about Charlie evergreen ? how is he ? he told me these are my options are stage3 gt35 with #8 turbine housing or using my turbine a p trim #8 gt 35 what do you guys think?

User 52121

He's pretty well respected and knows his stuff.

Had I not gotten a smoking deal on a used turbo from a fellow RL'er, Charlie was going to get my business this past winter.

Oddjob

Charlie is really a stand up guy.

fejjj

+1 for Charlie

JBrown

I found him off the fourms which turbo should I go for as stated in my 1 post

Dougs951S

Agreed Charlie is a good guy, and even though I did not end up using him, he still spoke on the phone for an hour with me discussing my various options and chit chatting with me about all things mechanical. That P trim turbine/#8 hotside with a GT35 compressor is pretty close to what I have, it will move some air for certain but might be a bit on the laggy side for a street turbo. With the P trim turbine that compressor is capable of ~400 rwhp. ( even choked as it is in the #8 housing...by the way I assume you'll be using a replica housing and not a genuine porsche #8..which is even more restrictive) It should still move a ton of air and spool up a bit better with the stage 3 turbine. Of those 2 options, I would choose the stage 3 unless the car is going to be a track *****.

JBrown

im looking for 450 to 500 wheel can they both support that ?

Dougs951S

Will this be a race engine? A lot goes into making 500 rwhp. Its much more than just slapping a big turbo on and calling it a day. What fuel will you be running? E85, pump gas, or race gas? Do you have the fuel system to support that much power? You'll want to have all new fuel lines, and you will need at least 80 lb injectors ( bigger if you want that much power on E85 ) and a bigger fuel pump. I recommend the bosch 044. What about tuning? Do you have a MAF, because you'll need one. 400 rwhp is around the upper limit of what you'd want to do with the AFM combined with a MAP sensor. The factory rods are not really reliable at 500 rwhp either. What rods are you running? What clutch are you running, or planning on running? You have lots of good options for clutches that will hold 500 rwhp, you can even daily drive a few of them. I've heard good things about south bend and FRF clutches, or talk to some of the guys here who daily drive big rwhp cars.

Some of the less obvious things...what about your suspension and brakes? If they are stock, I'd give that some serious consideration BEFORE you got 500 rwhp in your car. If you are on stock wheels, you can forget having any kind of traction which makes that power kind of pointless.

Lastly to answer your initial question, no you are not going to get 500 rwhp using the #8 hotside..its just not going to happen. The P trim turbine combined with a GT35 compressor is capable, but the hotside will be a huge restriction. Like I said, ~400 rwhp.

I'm not trying to be rude, ask you stupid questions, or tell you stuff you already know but I've seen a few threads now from you about trying to pick a turbo for some huge power number, without you really telling why you want this type of power or what else you have done to the car to support it. Most guys who are truly after 500 wheel horse don't ask what turbo will get them there. Its a nice goal, but much harder to attain than I think you realize.

JBrown

no street engine I have 3 bar fpr 55lb injectors for fuel and pump gas with meth injection, yes I have a MAF and map sensor, pistons are wossner rods are pauter, looking at cluches now stock turbo brakes just better pads and rotors suspension is all koni front tires are 235 45 18 rears are 275 40 18

Dougs951S

You will need more fuel. Bigger injectors and a new fuel pump at a minimum. 80 lbers would just barely cover you for 500 rwhp on pump fuel. Also, even with the proper hotside ( read, not a #8 ) You will have serious issues making 500 rwhp on pump gas..I think you need to dial the goal back a little. Just being honest with you.

JBrown

my car before I did a 2.8l bottom end and head work w a p trim and a stage 5 wheel with 50lb dynode at 340 wheel at 17 psi before the maf

JBrown

Charlie said I should see about 450 wheel

JBrown

here is my current internal work Pauter Connecting Rods,Wossner 2.8L Stroker Piston Set 951 100.5mm w/LR Ring/Pins/Clips,8v Cylinder Head Level II,O-Ring Head,Valve Springs Lindsey Racing 951 w/Moly Retainers 140#,274 Web-Cam 8v Hydraulic Camshaft,Extrude Hone Intake Manifold,968 crank shaft