09-19-2009, 08:43 PM
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Join Date: Jun 2005 Location: NC
Posts: 6,038
Car: 92 Firebird Engine: Supercharged 6.0 Transmission: 4L80E Axle/Gears: 8.8 3.55 locker | Silicone couplers
Ok I feel silly for even asking this and maybe Im thinking too hard about it
How much can a silicone coupler compress around a tube? How well do they seal on a TPI/LT1 throttle body? Can T-bolts clamp an oval as good as a circle?
Most people agree a 4" coupler will fit a TPI TB fine, but my caliper shows my Z06 MAF has an inlet of 3.8" and an outlet of 3.65"
Thats alot to compress with a 4" coupler and 3.75" to 4" reducer couplers are hard to find. Nearly everything is in .5" increments like common pipe sizes | | | |
 
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