Re: TGB Adaptation Help?

[Shannen Durphey <shannen@grolen.com>]

Most of the Rocket parts are gone.  GM's into a 2.4 now, big brother
to a 2.3, and there are fewer factory hi-po parts available for that
engine. There are places that sell aftermaket parts for both engines,
if you (Rex) are interested search for powertek, and mantapart, and
look for J body (cavalier) internet sites.  Be warned, people with
2.3, 2.4l Cavaliers and Sunfires that have done minimal work before
swapping tb's aren't happy with the results.
Shannen

Bruce Plecan wrote:
> 
> There are lots of things to be done, before going to a larger TB in my
> opinion.
> ie intake tract, exhaust, cam, then TB..
>   Have you heard of or gotten a copy of the Rocket Sports (?) racing
> catalog?.  Was/is available from Olds with all kinds of quad 4 stuff.
> Grumpy
> 
> | My name is Rex Weatherford and I drive a 92 Chevy Beretta GTZ with a
> | Quad4.  I have been lurking for about a week and have been absorbing
> | what I can..
> |
> | I have a simple question (hopefully).  I would like to adapt a throttle
> | body from a larger engine to my Quad4 instead of boring it out.  I think
> | that this is electrically possible, but need some help.
> |
> | I think that I could adapt a TB from an LT1 or LS1.  I wonder what
> | problems I will run into.  My car looks for .200-.900v from the TPS at
> | idle and 4.5v or more (up to 5.0?) at full throttle.  It also drive the
> | IAC from 0-150.  O is all the way in, 150 is all the way out (if I
> | understand the book correctly).
> |
> | Can this swap be done?  I can have an adapter made to physically adapt
> | the TB to my intake..  Would a new LS1 TB be easier?  My TB only has one
> | plate in it, unlike the LT1 that has 2.
> |
> | I'm a little afraid of the minimum air flow in these TB's too.  Will the
> | IAC be able to compensate enough?
> |
> | Do these TB's have vacuum lines on them like mine?  If not then I will
> | have to tap ports into my intake for the vacuum lines.
> |
> | Let me know if this is a really bad idea.  ;^)
> |
> | Thanks!
> |
> | Rex Weatherford
> | 92 Beretta GTZ
> | 15.531 @ 91.28 mph (stock)
> | http://www.beretta.net
> | --------------------------------------------------------------------------
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