I would ask for dyno sheets, but seeing how that information could be tweaked I'll just take your word for it. I really wouldn't have thought that a stock turbo Evo could make over 420 wheel horsepower without nitrous. I would think that at the boost levels required for that much power that the turbo would be WAY out of its efficiency range. I guess you learn something everyday.

 

Saying GT35 is like saying T3/T4. There are so many wheel options that you can have equipped in the 35R housing. Saying that all 35R's are a 65 lb minute wheel is like saying all t3/T4's are a 50lb wheel. I happen to know for a fact that 35/40 hybrids are possible and sometimes are still just called a 35.

 

I have that FP3065 on my Evo and I think about 33 psi is all she has. Anymore boost does not equal any more hp, on my evo anyway. I just cannot see 45 psi on this turbo doing very much more than say 35 psi, which is still innefficient. Like you said live and learn.

 

GT3582R = GT35R, GT3076R = GT30R, GT4294R = GT42R. This is going by how Garrett names the turbos. GT35 doesn't refer to a specific turbo, but GT35R in this case does.

Please correct me if I am wrong.

 

when it dynoed 540whp + 100shot it went 10.09 @ 147 sputtering the entire way down the track (DSM Shootout 05, he won the Quick 16 class). 1.3sec 60', it was 9.70-9.80 capable that pass. i did forget to mention that on the dyno there was a 100 shot of direct port nitrous involved, when it put down 760. but was never run @ that hp level because of block issues.

 

Yeah, that would explain it. Thanks for the follow up.

 

Makes sense now.

 

No need to get defensive. I have no tone in my post. Doug answered the question for me. I was under the impression that the airflow rating was a theoretical measurement based on a specific psi (typically 1bar) and a specific temperature. The airflow measurement does not have a direct correlation with WHP although it is funny that seems to work out that way alot of the time.
Another thing, the calculated air flow number is not the be all, end all when it comes to power production. Example: 390cfm restrictor on a NASCAR that makes 600hp. God help me for using a NASCAR example.

 

Yea...but its pointless... I've got a GT3567 ( T04R 67 mm compressor wheel) rated at 76lb a minute airflow. Its not a mismatch and its a hybrid but I got no more horsepower with it running even up to 40 psi.... MOdifying the standard 35R compressor wheel is a waste of time and money... A T3/T4 is a different thing altogether... going from a 50 trim to a 60 or 60-1 does give you a flow and power increase...

 

I didn't intend for my post to seem like that. I'm no expert when it comes to this kind of stuff, just trying to learn everything I can.

 

Looking to step it up for '06 Les? haha

 

Guys turbo's will can run diffrent amounts of boost on diffrent engines...
Say you have two identical gt35r turbo's
Put one on a evo8
Put one on a 4.6L gt mustang
You probably can push about 42 to 45lbs of boost to redline on the evo..
But only 32 to 35 on the mustang...
More displacement = more air flow = harder for turbo to keep up..

 

Call Forced Performance or Innovative and ask if there are more than one option that fits in the 35R housing. 35R does not refer to a specific wheel.

A turbocharger is still a turbocharger independent of the frame and bearing style. You can put any wheel in any housing, its a matter of time and money and research.

 

Well, then don't talk about GT35 being like a T4/T3 where you can put various combinations and it will work... Its back to what the GT35 range has available and having a hybrid with it doesn't make it a 750 WHP turbo... the importance is that Garett has perfected its match for the 35R cartridge and putting a 67 mm wheel or some other wheel ain't gonna make it flow more... In this case, we know now that 760 WHP is possible ' on gas ' and I have to agree... my drag car makes 730 WHP on 100 shot of nos on a standard GT35R... yea big deal...