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Discussion Starter · #1 ·
As some of you know I recently bought a CAI for my 1995 Suburban.

I have been thinking about a throttle body spacer but I am a bit worried that it will make the CAI sit too high (it is supposed to be 1-1.5 inches thick so the throttle body will be that much higher) and that is might stress the Throttle Body itself or the CAI housing to route it to the end point, which is a box bolted to the fenderwell.

Has anyone here used a TBI spacer with a CAI on a Full size truck or Suburban?
 

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Let us know how it goes. I just bought an '01 Silverado from my work (Strathmore Motor Products). I'm putting on the GM preformance exhaust, but would like to make a few engine mods as well. The TBI spacer is one that I was looking at.
 

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Discussion Starter · #6 ·
Let us know how it goes. I just bought an '01 Silverado from my work (Strathmore Motor Products). I'm putting on the GM preformance exhaust, but would like to make a few engine mods as well. The TBI spacer is one that I was looking at.
Actually it went well. Part throttle respsonse is improved by quite a bit.

I am told that true fuel injection engine like what you have in your '01 do not see the same benefits though. You start off with a lot more power though.

My wife has an '01 with the 5.3L and the 5.7 in my 1995 still isn't in the same class. It has improved noticeably but the '01 is still the more powerful package. Maybe towing a trailer the 5.7L would have more torque but I don't have anything to tow right now so I don't know.
 

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Discussion Starter · #8 ·
There is a fastener that has to be removed from the back of the block that attaches the fuel lines to the engine. You take that off and you have enough leeway to move everything. Taking that fastener off the back of the block was the longest step of installing the TBI spacer without a doubt.
 

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The most important thing to check and adjust after installing the spacer is the trans kickdown cable. I have one in my '88, and I've had no clearance problems.
 

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I'm sure it helped some, but would you personally recommend a throttle spacer to someone? Was the total price reasonable enough to make a performance increase, or is it "just nice to have"?

And whats the cost?
Thanks.
 

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Discussion Starter · #12 ·
I'm sure it helped some, but would you personally recommend a throttle spacer to someone? Was the total price reasonable enough to make a performance increase, or is it "just nice to have"?

And whats the cost?
Thanks.
It made it quite a bit nicer to drive around. Especially in normal part-throttle situations I have to use less pedal to accelerate at the same speed. To be honest, it made more of a difference than the power chip did. The best thing about the chip was that it changed the shift points around so it probably made the power tower work better.

I bought a Helix Power Tower II. They are about $69.99 at JCWhitney.
http://www.jcwhitney.com/autoparts/...005658/N-111+1995+200728473+600002049/c-10101
 
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