PTK TT update
The more power you make at a given pressure ratio you will move to the RIGHT of the data points I did on the compressor map previously. The dark data point to the right of the sweet spot is based on shinobi's verbal data. The data point to the right of that is the same boost level but made more power, which used more airflow, pushes it further out of the sweet spot. Now, put 402cui and it moves the airflow even further away than that as it will require even more air at the same 9psi.
Now, the exhaust side of that turbo is a different story and Shinobi is finding out.
Phil
well thats why a suffix dr is needed
have endured alot worse things in my life then buying another set of turbos
i hope kevin tries running test tubes and 94, maybe itll suprise us and spool where he wants.
have endured alot worse things in my life then buying another set of turbos
i hope kevin tries running test tubes and 94, maybe itll suprise us and spool where he wants.
and generate some data. Your still 346cui right?As for the T3/T4 hybrid..I think you should know the answer to that, look at the TTi stage X.
Phil
This of course is my humble opinion supported by limited data supplied by shinobi.
Phil
Phil, what do you think would be the best turbo for my set up?
Bill


So this was something I wanted to see for myself on my own car, but to answer your question, I was not paying by the hour on dyno time to figure this out. Of course I did pay for the new exhaust and whatever labor was required to install it.
Sorry, not meaning to hijack the thread. Shinobi, what exhaust are you running on your car again?
.But, where are the kit mfg and expert at anyways?
Phil
Phil
But it is a good question...so hopefully I can give a good answer.
Jose (from Forced Inductions) was too be calling Turbonetics yesterday to see what the availability was on a (T4 flange) BB 50 Trim (54mm compressor wheel, Stage 5 turbine wheel)..I think they wanted to determine whether a .58 or .63 AR would be better for a 346cid, so Jose wanted to talk to the main engineer at Turbonetics about it. I would expect that somebody get back to me today on it. (What your take on this turbo?)
Noob,
I am running the stock 01 cats and some Borla Stingers. When I had the TTi Stage III, Xtreme removed the stock Ti exhaust and put on some Borla Stingers..which aided in eliminating some back pressure and thus made more power. I think this is what Bill Reid is referring too.
The Saga continues...also PTK is building a retrofit heat shield for my headers to help insulate.
As for the T3/T4 hybrid..I think you should know the answer to that, look at the TTi stage X.
Phil
t3/t4 hummmmmmm....
.But, where are the kit mfg and expert at anyways?
Phil
Jose Zayes is the expert and told babala65 call him.
The Best of Corvette for Corvette Enthusiasts
Phil
Yup,I would agree.The compressor side that would be a good first selection for the bigger cube motor. It targets mathematically at 9,11,13,15,17 and 19psi. The exhaust is something that will need some attention as that a big horse to spin.

Phil

Yep totally blew it up and it melted to the ground and may car has been reduced to a pile of ashes......come on bro.
The hood is fine, Xtreme just told me that the fiberglass liner was not doing too good...it didn't catch fire...too bad I could have collected my insurance money.
Just KiddingNo I told you guys I would be the first to tell you if there were any heat issues..and the fiberglass mat did not take to kindly to the header..so PTK has made a Polished Aluminum cover that will bolt on over the header and provide some additional shielding. I have made a template to vent my hood...very close to JPAS and Toyota's Supra's TRD hood that emiminates under the hood pressure, heat extracts, and helps with down force. But mine is going to look different I have been working on it for about 1 month now. It will be Z06 screened and I think its going to look pretty good. There is also the thermal barrier available. Just don't want to take any chances.
Phil did what do you think about that Turbo size I mentioned.
Was that a super 50? or the regular??
The super is ok, not a ton different than the 60 you allready tried.
The map profile is more horizontal and does have a larger happyzone.
Just overlay some data points on the map as I showed ya before.
Small A/R and the "O"trim or smaller? Its the exhaust side thats killing you more than anything right now.
I like your GT30R suggestion a whole lot better
Phil
Was that a super 50? or the regular??
The super is ok, not a ton different than the 60 you allready tried.
The map profile is more horizontal and does have a larger happyzone.
Just overlay some data points on the map as I showed ya before.
Small A/R and the "O"trim or smaller? Its the exhaust side thats killing you more than anything right now.
I like your GT30R suggestion a whole lot better
Phil
I don't know really Phil..when I get the info I will post it. I was thinking it was going to be an O trim or what they called a Stage V wheel. I don't think they can get a GT30r in a T4. I am at the mercy of the powers that be.
















