Interesting stuff. I skimmed through it, but is it geared more torwards gas motors or diesels? N/A vs Forced induction? I'd think with turbo'd motors you'd want to be on the smaller side rather than larger side so you get max exhaust velocity to spool the turbo as quick as possible. But then again people putting on the RDL headers and up pipes have nothing but good things to say, and they're larger than stock I believe.
yeah my thoughts also but the more air you can get to your turbo no matter the velocity the better i wold think and most of the force behind your impeller is caused by heat not so much velocity.
__________________ 2008 Silverado LMM CC SB EFILIVE bullet hole/s in hood Snake oil fuel additive with adamantium wheel studs
Interesting stuff. I skimmed through it, but is it geared more torwards gas motors or diesels? N/A vs Forced induction? I'd think with turbo'd motors you'd want to be on the smaller side rather than larger side so you get max exhaust velocity to spool the turbo as quick as possible. But then again people putting on the RDL headers and up pipes have nothing but good things to say, and they're larger than stock I believe.
But you have to remember the people using the larger diameter headers and up pipes are flowing a lot of air.
__________________ 2002 GMC LB7
Cognito tie rods and braces, SC stage IV 1056 converter, MITUSA lift pump, RDL up pipes
Homemade twin turbos, stock IHI over s475
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Snake oil fuel additive with adamantium wheel studs 
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