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Old 12-06-2006, 10:16 PM   #1
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Default How helpful is a TB spacer?

Question says all. Is it good at reducing KN? If one has a spacer, could they run a 3.3 pulley instead of a 3.4?
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Old 12-06-2006, 10:26 PM   #2
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TB spacers have no effect on KR (not KN). They're primarily for providing a point for Nitrous or Water Injection.

The length of the intake is not as important of a factor in a supercharged car as it is in a NA car.

If you think about it, wouldn't lengthening the pipe on your CAI accomplish the same thing?
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Old 12-06-2006, 10:36 PM   #3
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the only REAL benefit would be if it were to block off coolant passage through the throttle body, or separating it from heat sources theoretically decreasing intake temps by a fraction of a degree, but nothing that i think could make much difference at all certainly NOT a pulley size difference
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Old 12-06-2006, 10:36 PM   #4
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No, I wasn't thinking that way. I was thinking something along the lines of insulating the TB from the hot supercharger. Aluminum seems to spread heat quite well. It SEEMS to make sense. At least that is what ZZP says.
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Old 12-06-2006, 10:55 PM   #5
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Aren't ZZP'* TB spacers aluminum? What are you looking for? Spend your money on other mods first.
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Old 12-06-2006, 11:35 PM   #6
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Quote:
Originally Posted by willwren
Aren't ZZP'* TB spacers aluminum? What are you looking for? Spend your money on other mods first.
Im not going to get a spacer without doing other mods first. Give me some credit, im not that dumb. :P I just want to find out if it works as advertised and if other people are using one. This is the one im looking at:

https://www.zzperformance.com/grand_...ts1.php?id=225
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Old 12-06-2006, 11:37 PM   #7
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Quote:
A throttle body spacer will insulate your TB from the heat of the supercharger. Keeping your TB cool will help keep your intake temperatures down thus reducing KR and increasing HP potential. The inlet is 72mm to work great with our ported throttlebodies.
Boreas makes a valid point
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Old 12-07-2006, 12:46 AM   #8
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Not really. Even if your TB was hot (ignoring the fact that the coolant COOLS your TB at high temps) how much heat do you really think that high-velocity air will pick up from the hot aluminum in a few miliseconds?
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Old 12-07-2006, 12:53 AM   #9
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Good point. Thanks.
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Old 12-07-2006, 01:08 AM   #10
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In a nutshell, it'* a mod for the guy trying desperately to get from 13.999 to 12.001 on the quarter.
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