Rank: Member
Groups: Registered
Joined: 14/06/2007(UTC)
Posts: 582
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Question guys: my 40thou over 202 currently makes a hair under 100HP at the wheels, with a new head to come (worked red or YT, not sure yet). Currently a lightly home ported stock head. Running at the moment, free-flow headers, 2 inch system, straight through muffler.
Its got a decent cam, twin-carb induction. I think the head's a restriction.
One opinion is that my exhaust is borderline too small as it is, and with expected gains, i'm thinking 2 1/4, 2 1/2 is more appropriate? |
"Silly modern cars" |
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Rank: Member
Groups: Registered
Joined: 16/06/2005(UTC)
Posts: 424
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Are you after torque or top end power?
If you are looking to get a higher number on the dyno then go with the 2 1/2" system with straight through muffler.
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Why are you reading this, you should be looking up there^^
- HJ tonner |
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- HJ turbotonner looks and goes like a sneezing rhino on heat! - |
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Rank: Member
Groups: Registered
Joined: 14/06/2007(UTC)
Posts: 582
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This motor has torque to spare. Literally like a table form low till about 4000, then only tapers slightly. So its certainly no loss if i go bigger. Im not chasing a flattering dyno figure, but i just think it might flow a little better, especially with t |
"Silly modern cars" |
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Rank: Veteran
Groups: Registered, Veteran
Joined: 2/06/2006(UTC)
Posts: 1,664
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i have extractors and 2 1/2 inch stright through
goes and and sound well
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