is that where you post here?

 

is that sarcasm?
if not then yes.

 

I didnt word that correctly, I didint know if you could post without an xx amount of posts, but I read the rules ;)

Thanks for the help


Its posted

 

Quick question, when you are referring to the 67mm and the 61mm comp turbos, are you referring to the compressor trim or the compressor a/r? Been spending some time on comp's website and i'm sold

 

What kind of exhaust are you running?

 

I believe he's referring to the inducer wheel size on the compresor.. and if so, then 67mm is indeed very similar to a GT40.

This turbo (if it is what I think it is) is very similar to Bullseye's S362 and S367. Large compressor wheel fit in smaller housing and a T3 backside.. but they can also stuff T4 wheels in the exhaust side.. so I'm not sure what he has unless he tells us the sizes of all the wheels.

 

I got the EU w/pnp from my boy for $300. I later bought the PS, and also the Auto target A/F ratio harness. So, it's all good. When time comes, I probably will go with a set of BC cams.

 

That is correct. Comp Turbo, Bullseye, ITS (Innovative Turbo Systems) are all Borg Warner turbos, ie. they all use Borg Warner CHRA (Center Housing Rotating Assembly). ITS was the first company using or owned by Borg Warner turbo to enter the aftermarket turbo industry. After ITS folded, Bullseye Turbo took over where ITS left off, and now Comp Turbo is another player (I believe the principals were also ex-ITS employees).

With that said, when you're referring to a Borg Warner based turbo, the nomenclature for turbo size that these companies use is based on the compressor inducer size not compressor exducer size like a Garrett Turbo. So a Comp Turbo CT367 is basically has a T3 turbine housing with a compressor wheel that has a 67mm inducer in a T04E compressor housing. A Garrett GT4088R turbo has a 63.5mm compressor inducer, 88mm exducer and a GT4094R has a 67.8mm compressor inducer, 94mm exducer. Without knowing the exducer sizes for the CT turbo, it's difficult to know how it compares to a GT40R turbo. I know it's turbine and compressor housing is not physically as large as a GT40R but I believe it's a very large turbo--at least on the compressor side--squeezed inside a small housing. CT rates this turbo up to 700hp so that's no small turbo. Garrett also rates the GT40R at 700hp.

MrC

 

You are correct there Mr. C

 

Big Mr.C.. lol My turbo is custom, it is very similar to the ct367, they list power levels up to 700HP at the largest configuration. Although I do think my turbo is well over capable of 630-650. The compressor inducer is 67mm, exducer of the turbine wheel is 71.0 mm stuffed inside a much smaller t3 .63 ar housing which enters the turbine wheel more tangentially than a bigger t4 with a larger a/r (simply area/radius).

Using the term GT40r can mean a few configurations

The term large is a long term, My GT47-88 is a large turbo on my supra with a 1.28 a/r.

 

I think they have made some good improvments

 

Those are big wheels in small housings.. exactly what Mr.C said.

Those are very comparable to GT40 specs.. your compressor inducer is a tad bigger than most GT40 (63mm vs your 67mm) and the exhaust exducer is a tad smaller than GT40 (77mm vs your 71mm). Very similar to Borg Warner S366 as well. The exhaust wheel is more like the 71mm GT35 wheel.

 

I agree it would be easier. However it has and can be done and that is the important point here.

 

You do realize there is a very large array of GT40 turbos dont you. if you want to compare a size (this is from the first post comparing the two) it is best to let us know which one your talking about, there are GT40s that make 800HP.

GT40
GT4088

GT4088R

GT4088R

GT4088R

GT4088R

GT4094R

GT4094R

GT4094R

GT4094R

Even with the smaller GT4088R it still has a bigger front compressor cover 0.72 a/r versus my .060, and a bigger exhaust housing 0.85, all the way up to 1.19 including its a T4, Im a T3. Mine had a.63 ar t3.

See what Im saying, that would be like me saying all 67mm turbos are created equal and make 700hp..

 

Give me some credit here... I know there are many variations of a GT40 turbo. And why are you bringing up compressor covers?? We've already acknowledged that the compressor is SMALLER. It's a custom turbo - it's what Borg Warner turbos are about.. large wheels in small housings.

You're missing my point - you have GT40 size compressor wheel with GT35 size compressor wheel in a .60 AR compressor housing and a T3 .63 AR exhaust housing.. can you argue with that?

 

I concur.

 

Sorry, I have to disagree. And I'll just leave it at that. I think we have all reached a conclusion on where this is going, what it took to get there. And ignoring other factors for the sake of proving something can be done is not my cup of tea.

 

Nice.

 

Im not taking anything from you bud, its good you know this much about turbochargers and such, its always great to have this knowledge, but I would more compare my turbo to a gt35r just with a bigger Inducer by 5.6mm, and the 35 r still has a bigger comp cover.. but ya I give you credit ;)

 

Ill be back on the dyno with 100 octane streetblaze (it would be similar to pump and meth injection, im not putting meth inj. on for 1 run). Just to set some #'s, without spraying the Intercooler, and with my new tune. I gaurantee Ill make 520+ there will be no where near as much work in it then correct?