Jim_rockford_007 Posted August 29, 2021 Report Share Posted August 29, 2021 Quote Link to comment Share on other sites More sharing options...
GTP091 Posted August 30, 2021 Report Share Posted August 30, 2021 Interesting video. Makes me think The benefit of long tube headers is only going to be worth it on normally aspirated engines where scavenging is important. Jim_rockford_007 1 Quote Link to comment Share on other sites More sharing options...
Jim_rockford_007 Posted August 31, 2021 Author Report Share Posted August 31, 2021 Im figuring the headers outflow the heads and the stock manifolds are plenty enough for the exhaust port flow capabilities, even ported to heads can only flow so much air. therefor the restriction in the exhaust isn't the manifold but the heads themselves. Quote Link to comment Share on other sites More sharing options...
mfewtrail Posted September 2, 2021 Report Share Posted September 2, 2021 It would be interesting to see what, if any, differences there would be when using an actual full length exhaust with both the stock manifolds and the long tubes. Quote Link to comment Share on other sites More sharing options...
Jim_rockford_007 Posted September 5, 2021 Author Report Share Posted September 5, 2021 would be just the same if not a tad lower but adding the rest of the system would not gain anything on either setup. I do wish he would have done the headers on reguler fuel though and not E85 Quote Link to comment Share on other sites More sharing options...
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