Throttle body spacer with Howell? -
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post #1 of 4 Old 12-24-2011, 12:07 PM Thread Starter
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1982 CJ7 
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Throttle body spacer with Howell?

Anybody try an aftermarket throttle body spacers with the Howell TBI? I'm curious about mpg and performance?

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post #2 of 4 Old 12-24-2011, 12:12 PM
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It will not make any difference other than help keep the TBI cool.
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post #3 of 4 Old 12-24-2011, 12:20 PM Thread Starter
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I've never tried them and just ran across a few in the summit racing catalogue for the Chevy TBI system. Figured it couldn't hurt to get opinions. Thanks
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post #4 of 4 Old 12-24-2011, 01:02 PM
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I have run them on a couple different Chevy TBI rigs. My '96 Chevy with a 305 and my jeep 304. Both times I saw 1-2 MPG gains and what could be purely imagined increase in low end grunt (seat of my pants Dyno).

They were designed for carberators and thus will have a slighty positive effect for TBI as well due to the similar design. On a newer engine with MPI, they are a useless paper weight.

I probably would not have bought one for my jeep except I needed an extra inch more clearance under the TB. The impact on performance is so small that if you do decide to buy one, make it one of the last things you do. There are a ton of other things to spend money on first, or wait until a buddy gives you one.

With a great Jeep comes an empty wallet.
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