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Here is an easy question re: 3100 TB

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  • #1

    Here is an easy question re: 3100 TB

    How big is it? Is it 52mm? Its a 95
    1984 Indy Fiero 3.4L
    13.7 sec @ 98 mph
    *ALL THROTTLE AND NO BOTTLE*
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  • #2
    All 3100's from 94-99 had a 52mm throttle body.

    ALL 3400's from 96-pressent use a 56mm throttle body.

    and now i believe that the 3100's with the larger port intakes from 2000+ also use the 56mm?? i cant remember if they also changed up to these as well.. i'll have to measure one at work here someday if i get ambitious enough to pull the air tubing off.


    _________________
    Colin 92 GT, 3200 Hybrid
    14.59 @ 94.497
    EP LSD equipped!
    Members - j-body.org - The J-Body Organization
    https://www.j-body.org/members/colin
    The J-Body Organization, j-body.org, is the worlds largest automotive enthusiast group exclusively geared towards the General Motors GM J-car platform including the Chevrolet Cavalier, Pontiac Sunfire, Pontiac Sunbird, Pontiac J 2000, Oldsmobile Firenza, Buick SkyHawk and Cadillac Cimarron.

    member of the www.turboz24.com crew.
    Amazing what you find when you search!

    According to DD2000, switching from a 52mm to a 56mm is worth 8HP @6500 RPM....on my motor anyways, assuming everything can flow.
    1984 Indy Fiero 3.4L
    13.7 sec @ 98 mph
    *ALL THROTTLE AND NO BOTTLE*

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