| Flash68 |
05-22-2013 05:59 PM |
Stole this from another forum. Says they are SBC and NOT LS. :sieg:
Here are a couple of muffler photos that I took in the garages at the V8 Supercars race at COTA last weekend. Note that these cars are relatively quiet for anything that you will hear on a race track. The World Challenge Cadillacs and the GT3 Cup cars were, by far, the loudest cars on property all weekend.
http://i236.photobucket.com/albums/f...psb33cdfc5.jpg
http://i236.photobucket.com/albums/f...ps60904a6e.jpg
Mufflers and exhaust are apparently not a spec item with this group. While one of the Erebus cars appeared to use a pair of Borla-looking mufflers (with no crossover, H, X, or whatever until after the mufflers, which was basically the tip as well), one of the Tekno cars used a pair of these fabricated mufflers.
Each muffler appeared to be fabricated from 3 parallel perforated tubes that were welded together, and contained on each end by a 3-into-1 collector. This assembly was contained inside the larger outer tube with a pair of end caps. According to the team, there was no packing inside the mufflers; they were just hollow inside. All of this did a pretty good job at quieting the 7500 rpm E85-powered EFI 305-inch SBC (not LSx) under the hood.
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