Bison – TE45A question

Discussion in 'Turbo's and turbo related parts' started by Jerryl, Dec 24, 2011.

  1. BIGPSI Member

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    i'm gonna give this convertor one more shot,then i will either put a smaller turbo on or different convertor
  2. Jerryl Doing MORE with LESS!

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    Be sure to ask what boost number the stall rating is.

    Looks like the "old school TE45A is STILL a winner"! :cool:
  3. bison Moderator

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    My guess in BigPSi's combo at 28-30psi about 6000.
  4. 278cikiller Member

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    Bison what the hp that these TE45a put out at full boost.
  5. Jerryl Doing MORE with LESS!

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  6. bison Moderator

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    Yup. Around 800hp give or take a few. It takes an engine with good heads and a cam that will get the cylinder fill at the pressure ratio it flows the most to get it done. Looks like around 2.7:1 pressure ratio would be ideal
  7. bison Moderator

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  8. 11.20n1320 Member

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    I love the 45a,have gone 10.00 @135 at 26 psi in a full weight GN in THS trim.Cant wait to turn it up!!
    DDay
  9. bison Moderator

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    Thats getting it done. You probably won't be able to get much more boost out of it. I was able to make 28-29psi running the 66 compressor hard.
  10. Jerryl Doing MORE with LESS!

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    Yes Sir! :cool:
    +6500 rpm @ 2.7PR
  11. Adrian87 Member

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    I have had no problem running 28-29psi on the street with 93 and methanol other than tires. Car is silly. Great street turbo.
  12. Pronto Question Authority

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    What kind of times did you run with that combo?
  13. krom Alky graveyard parking.

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    Last time out my 45A did 10.3 averaging 19.7 boost throughout the run, thinking I might give the rod a few twists on Saturday to raise the boost to 22 or so. What I am waiting for is a column shift detent that is on its way so I can shift the car from 2nd to 3rd and optimize RPM's.
  14. Pronto Question Authority

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    Column shift!:) That must really mess up the competition.
  15. qws2000 Member

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    Is the 45a very similar to the ta66?
  16. Dusty Bradford Active Member

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    Yes but the stock compressor housing is a restriction. The bigger wheels don't seem to gain much at all when stuffed in the stock housing.
  17. bison Moderator

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    Yup. The diffuser isn't meant to be run at mass flow/pressure ratio the larger compressor wheels make power at. It seems to be a bigger problem with a pressure wheel vs a volume wheel of the same or nearly the same size. Most don't even come close to the limitation of the stock housing though. The difference between an E cover and anything larger is a lot less than most think even at 800hp. KevinB is getting it done.
  18. qws2000 Member

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    Bison, I think if im understanding you even just a 1/4 of what you wrote it sounds like my 66 is a pretty decent turbo, for us guys looking for a stock appearing set up...
  19. bison Moderator

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    I'm pretty sure the 6676 has been into the 10's on a stock appearing setup through a stock intercooler. If you wanted to switch covers it would be about $300. You need the backing plate and comp housing to do it


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