header update
#21
Join Date: Jul 2010
Location: Austin tx and Daytona FL.
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this a little off topic; pix of a turbo header system with flex joints for expansion and contraction ,form heating an cooling, known to cause cracks in pipes.
kid doing the work 21yrs old, car(Nissan GTR) made 850hp.
in my experiance, most effective N/A scavenger headers have at least 24-26" runner length before merging into collector, then a long outlet pipe 36+". also an H-pipe crossover.
makes for good mid range torque, where it is most usable, and sounds nice.
kid doing the work 21yrs old, car(Nissan GTR) made 850hp.
in my experiance, most effective N/A scavenger headers have at least 24-26" runner length before merging into collector, then a long outlet pipe 36+". also an H-pipe crossover.
makes for good mid range torque, where it is most usable, and sounds nice.
Last edited by ronbros; 08-03-2014 at 12:14 PM.
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#30
Join Date: Jul 2010
Location: Austin tx and Daytona FL.
Posts: 7,362
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if you think SS is hard to work with,wait till you get to TITAINIUM !
always amazes me is how they make the F1 exhaust pipes all in one length of TItain, without any joints,and all curly cues, just flanges bonded on!
to add to the home made header idea,internal exhaust flow has some disruption in smooth flow at the welded joints, i had to send a pair out, to be EXTRUDE honed ,they came back 90% better on the insides, the guy asked me to do the best possible, money no object.
my inlets are EXTRUDED, very nice internal shape, done with coarse compound, but took out the humps and bumps, smoothed entrance into runners.
always amazes me is how they make the F1 exhaust pipes all in one length of TItain, without any joints,and all curly cues, just flanges bonded on!
to add to the home made header idea,internal exhaust flow has some disruption in smooth flow at the welded joints, i had to send a pair out, to be EXTRUDE honed ,they came back 90% better on the insides, the guy asked me to do the best possible, money no object.
my inlets are EXTRUDED, very nice internal shape, done with coarse compound, but took out the humps and bumps, smoothed entrance into runners.
#31
if you think SS is hard to work with,wait till you get to TITAINIUM !
always amazes me is how they make the F1 exhaust pipes all in one length of TItain, without any joints,and all curly cues, just flanges bonded on!
to add to the home made header idea,internal exhaust flow has some disruption in smooth flow at the welded joints, i had to send a pair out, to be EXTRUDE honed ,they came back 90% better on the insides, the guy asked me to do the best possible, money no object.
my inlets are EXTRUDED, very nice internal shape, done with coarse compound, but took out the humps and bumps, smoothed entrance into runners.
always amazes me is how they make the F1 exhaust pipes all in one length of TItain, without any joints,and all curly cues, just flanges bonded on!
to add to the home made header idea,internal exhaust flow has some disruption in smooth flow at the welded joints, i had to send a pair out, to be EXTRUDE honed ,they came back 90% better on the insides, the guy asked me to do the best possible, money no object.
my inlets are EXTRUDED, very nice internal shape, done with coarse compound, but took out the humps and bumps, smoothed entrance into runners.
For my intakes I'm thinking of cutting.the stock ones.up and rewelding them with the ports strait and porting them.
I follow.the work of a guy john Marcella from marcella manifolds and I think.thats what I'm gonna do with my intakes. Can't hurt with the amount of tig stainless practice ill get.
#33
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