Bison – TE45A question

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

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  1. Jerryl Doing MORE with LESS!

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    Any idea?

    What is the real world “sweet spot” for a TE45A with 0.83 PThousing on a car with ported heads/intake?
    What about Boost/BP ratio?

    Don't know shift RPM at this time. :(
    Jerryl, Dec 24, 2011
    #1

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  3. northerngn Master Monkeywrench

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    When I had one 25 was pretty sweet!
    northerngn, Dec 24, 2011
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  4. Jerryl Doing MORE with LESS!

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    I bet! LOL

    I did some calcs;
    Ass-U-ming I have the correct map (T66 . . .:confused:) . . . .
    The Max calculated sweet spot is PR 3.36 @ 5000rpm :eek: I have no intentions of getting that high, ever. :p

    My “comfort number” on 93/SMC is 2.65PR which keeps the mass flow in the high efficiency island . . . but the efficiency really does not matter much with alky. Really should put a TE44 on it . . . . but that is not happening either. :rolleyes::eek::D;)

    We need to get the car to 117-119MPH, minimum.
    Looks like we may be able to get it done at 21 PSI. :confused: (Don't ask . . . it is a friendly bragging rights thing :D)
    Really need Bison to come tune my junk! :cool:
    Jerryl, Dec 25, 2011
    #3

  5. bison Moderator

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    Since youve already seen the compressor map then you know the potential of the compressor wheel. Looks like between about 2.2 and 3.3:1 it flows a lot of cold air particularly in the 60lb/min area. Probably why people put one in with cam, heads, and intercooler and make power no matter where they run it over 20psi. The hot side will cause backpressure before you can run the compressor wheel out. It wont happen till the car is trapping over 135mph though. You should be able get the car to tap 117 at 16-17psi. I wouldnt bother with th larger a/r housing at that power level. Even the Garrett .63 will be plenty to get 120+ and not cause a problem and the response will be much better. Id be shifting as low as 5200 if it has the stock cam at 20psi, 5400-5500@25psi, 5600-5700@30+psi and I wouldnt be too worried about the SMC either up to about 550hp. I run 3:1 and around 60lbs/min with my blue car which is way off the map and its been running like that for about a year.
    bison, Dec 25, 2011
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  6. TurboTnZ06 Living the dream

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    The 45a rules. I'm using stock headers and the Precision .63 exhaust side and gone over 130 in the 1/4. Set your boost to at least 25psi on the 45a. Mine at 17-18 psi goes 119-121 in the 1/4 with an unlocked converter.
    TurboTnZ06, Dec 25, 2011
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  7. Jerryl Doing MORE with LESS!

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    Holy COW!!!
    Thanks for sharing!

    Thanks Bison!
    Now come tune my junk!! LOL!!

    I am still not sure what cam is in the car.
    All I know it has a billet roller, roller rockers (unknown ratio), ported heads/intake/TB, IC/Double Pumper/MSBC 3"ATR, 3200 l a z y Protorque . . . . I just installed PL
    (I know I know . . . . I need to find out . . LOL!)

    Thanks guys!
    Jerryl, Dec 25, 2011
    #6

  8. Nick Micale Well-Known Member

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    Over many years, the TE-45a has been our second most popular turbo, especially for street/strip cars. :)

    The results we have experienced are right in line with the info Bison has stated.

    With ported iron heads in a full weight Limited, it has run 10.69 @128 MPH using 26 psi boost. Well ported alum heads and a different cam has produced a 10.2 @131 MPH and 20/12 psi with a TE-45A.

    The above numbers were after we changed from a Precision .82 housing to a Garrett .63. The Garrett made a BIG difference in spooling and greatly improved 60' times.

    We love this turbo, and have another one with a Garrett housing on the way from Limit. :biggrin:
    Nick Micale, Jan 5, 2012
    #7

  9. BobbyBuick Active Member

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    te 45a, Ported Irons ,108 reds chip,50 Lb Inj...Through the MAF 10.59 at Gateway 26PSI
    BobbyBuick, Jan 5, 2012
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  10. JP112_89 Member

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    I have a 6665 w/ smaller housing. I love it.
    Crazy,how it spools much faster than billet 6262 .63 pte.

    Putting a garrett housing on the t45 is a great idea. But is it cost effective? Tnetics sells 6665 with smallet housing for just over a grand..New.

    Joe
    JP112_89, Jan 6, 2012
    #9

  11. NCTURBOS Gettin' back in action!!

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    We're talking about a P-trim, right? Not a Q-trim??


    K.
    NCTURBOS, Jan 6, 2012
    #10

  12. Pronto Question Authority

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    Anyone experience any surging at lower psi cruising around? I suppose Garrett doesn't make a ported shroud? I get some surging with my GT6131 at about 10 psi and it's damn annoying.
    Pronto, Jan 6, 2012
    #11

  13. JP112_89 Member

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    Yep 65... You can squeeze a garrett .63 on the (65). 6665,6765,7065...
    JP112_89, Jan 6, 2012
    #12

  14. Jerryl Doing MORE with LESS!

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    Thanks Nick!
    Looks like the "Old skool" STILL gets it done! :cool:

    What was the IDC?
    Alky or just race gas?

    Bison LOVES a good "P-trim in a tight body for a "quick hit". :tongue:
    Jerryl, Jan 6, 2012
    #13

  15. bison Moderator

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    The gtq spools noticeably slower and is a waste on most applications. I wouldnt even consider a gtq unless i was looking for 9.8 power. The p trim is very predictable and spools a lot faster with more ex housing options.
    bison, Jan 6, 2012
    #14

  16. Jerryl Doing MORE with LESS!

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    U R D Man!
    Thanks for taking time to respond and share! :cool:
    Jerryl, Jan 7, 2012
    #15

  17. krom Alky graveyard parking.

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    I let the car shift itself and ran the 10.2 @ 131 with my Chopper built Limit 45a.
    6000 1st to 2nd
    drops to 5400
    5750 2nd to 3rd
    through the traps 6200

    Could go faster if I shifted but the column detent sucks so I let the car shift itself.
    krom, Jan 7, 2012
    #16

  18. Jerryl Doing MORE with LESS!

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    Great numbers!
    What cam/boost?
    Jerryl, Jan 7, 2012
    #17

  19. Pronto Question Authority

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    Can you give us a quick rundown on your combo to see what that TE45a is working with?
    Pronto, Jan 7, 2012
    #18

  20. krom Alky graveyard parking.

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    RJC front mount
    75 injectors
    28/9 MT
    Ported Champion GN1's
    Stock Intake ported to the heads
    Stock TB
    Ported Doghouse.
    Zimmerman built with a cam around 230
    Boost averages 21 through the run.
    krom, Jan 7, 2012
    #19
    ULOSE2A6 likes this.

  21. jasjamz Heavy Street LOL

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    Nice! What do you shift it at? Higher compression?
    jasjamz, Jan 7, 2012
    #20
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