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Throttle body question

This is a discussion on Throttle body question within the External Engine forums, part of the LSx Technical Help Section category; So my car already has the ls6 intake on it, just curious as to how big of throttle body i ...

  1. #1
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    2001 Z28

    Throttle body question

    So my car already has the ls6 intake on it, just curious as to how big of throttle body i can run? Also would i benefit from a ported throttle body over an aftermarket one considering my car is pretty much stock? And are the ported throttle bodies worth it?

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    you cant go to much bigger TB on the intake......just not enough room

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    Member zmg00camaross's Avatar
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    2000 camaro ss

    A ported throttle body was nice and I notice a increase in throttle response.

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    Junior Member fouthgen.rocket's Avatar
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    Ralley Red/Black Top
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    I put on the LS-6 intake and had throttle body ported and polished and a good tune the car is so much quicker to me

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    Quote Originally Posted by 01A4Z28 View Post
    So my car already has the ls6 intake on it, just curious as to how big of throttle body i can run? Also would i benefit from a ported throttle body over an aftermarket one considering my car is pretty much stock? And are the ported throttle bodies worth it?
    IIRC,

    A professionally ported 78mm TB only shows gains over a stock TB above 5,000rpm and the Katech dyno graph I saw showed about 7hp gain at peak.

    It was covered in this book:
    http://www.cartechbooks.com/vstore/s..._ID=3086&DID=6

  6. #6
    Member Blue28's Avatar
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    You could send it to TPIS and have them do their snout conversion to it enabling you to use a 90mm 4bolt tb. That's if your willing to part with $350, and also buy a 90mm TB.

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    Senior Member 98maro's Avatar
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    00 camaro ss M6 #6695

    IMO with ls1/ls6 after market tb is not worh it.
    Stock ported is better. Cheaper to get it done and noticeable power.

    If you planning on getting a FAST intake. It will be worth it. Abd you will need to buy aftermarket.

    If you just gonna keep the ls6. Just get a P&P stock TB
    00 ss blk m6 " STOCK" strano springs, slp bilstein shocks, adj LCA, adj panhard bar, relocation brackets, 2 point SFCs welded,OEM zo6 rims black, magnaflow exhaust, CME exhaust,E/cutout, slp grille, custom front plate mount, HIDs, whistler mod, side moldings delete, slp air lid, ported and polished TB, strut tower brace, 3.73s gears, and some other parts to list!
    next to come,4.10s,ls7 clutch, ms3 or 228r cam, ported 243s, ls6 intake, ls6 oil pump. ls2 timing chain, longtube headers no cats, with a tune..
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