build diary

October 5, 2005: Well, no progress on the hood.
However, I did spend some time looking at mufflers. Between seeing all the Se7ens on the tour, running my car for a few hours on the road and again on the track with the Supertrapp tip, I've decided it's time to make the car quieter. All the "real" Se7ens run much larger muffler cans, enough that my little resonator looked pretty funny. So I wandered over to the Summit Racing website and started looking around. I've spent lots of time looking through their print catalog but the site amazed me. I was able to set my requirements (2.50 inlet and outlet, centered, round muffler, etc) and it weeded out all the hundreds of options I didn't need. By the end, I was looking at a list of 7 mufflers with full dimensional diagrams and a size range from 4"x14" to 6"x27". It couldn't have been easier - thank you Summit! I'm assuming that pretty much any 2.5" muffler will be able to flow enough air for my approximately 170 crank hp without noticeable restriction, but I'll see if I can find flow ratings for them. I'll do some measuring tonight to see what will work. It's a real shame that mufflers are sold with such vague descriptions - do I want an "awesome full throttle sound", a "deep aggressive tone", an "old school glasspack sound" or just "excellent sound"? I know I don't want a nasty rasp but none of them say that. It'll be a shame to lose some of the crackles and bangs but right now, wide open throttle hurts without the Supertrapp tip or ear protection.

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