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Thread: What trans do you recommend? And how much is it?
          
   
   

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  1. 04-01-2009 08:01 PM #1
    jerellem
    jerellem is offline CHR Member
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    What trans do you recommend? And how much is it?

     



    I have a 85 monte carlo w/ 350, 270 "loping" cam, 3.73 positraction going in the rear soon, big victor intake for high rpm (may be changing this since im not racing yet), and a holley 600cfm. Right now I have a regular 350 trans. What transmission would you put on this car and how much does it cost?
    Last edited by jerellem; 04-01-2009 at 08:04 PM.
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  3. 04-01-2009 08:19 PM #2
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    techinspector1
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    I don't see anything wrong with your TH350 behind a small block.
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  4. 04-01-2009 08:29 PM #3
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    jyardgirl
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    I agree with Tech. the th350 is the recommended tranny for your engine.
    BARB

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  5. 04-01-2009 08:30 PM #4
    jerellem
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    Quote Originally Posted by techinspector1 View Post
    I don't see anything wrong with your TH350 behind a small block.
    well, i was looking for more power. do you think transmission isnt where i should be looking?
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  6. 04-01-2009 09:37 PM #5
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    techinspector1
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    Ummmm, not exactly. Tell him Barb.....
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  7. 04-01-2009 09:43 PM #6
    Dave Severson
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    Transmissions don't make power...they transmit it from the engine to the differential..............
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  8. 04-02-2009 07:15 AM #7
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    what Dave said. You could put in a shift kit that will give you higher shift points and thus the feel of more hp.
    BARB

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  9. 04-02-2009 12:01 PM #8
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    Although transmissions don't make power they are a significant loss mechanism. So actually if you lower the trans loss (or improve its efficiency) you will improve power transmittal to the rear wheels.

    All that said in general a manual transmission has slightly better efficiency than an automatic. For example look at the EPA mpg ratings for cars that come both ways. Why? Automatics have complicated planetary gear trains with more friction and hydraulic loss elements than manuals.

    In terms of efficiency in automatics go the TH350 is relatively good. Powerglide is better and the TH400 has the highest loss factors.

    The TH350 is a great fit for your application IMO.

    Kitz
    Jon Kitzmiller, MSME, PhD EE, 32 Ford Hiboy Roadster, Cornhusker frame, Heidts IFS/IRS, 3.50 Posi, Lone Star body, Lone Star/Kitz internal frame, ZZ502/550, TH400
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  10. 04-02-2009 03:21 PM #9
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    Just don't buy one from TCI.

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  11. 04-02-2009 05:07 PM #10
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    700R4, low first gear and overdrive. Makes a 3.73 feel like you have 5.40s in first and 2.70s in OD.
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