attn 6.2 owners
Oct 7, 2012 | 11:25 AM
#12
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TECH Fanatic
Joined: Jul 2006
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From: K.C.
ahhh i see.
i was going back through some datalogs of various 6.2 trucks i have done. there are two that come to mind that would benefit from this. mine and another members on here. right about 5300 the air flow starts to slowly drop. i understand that as engine speed increases after peak torque/cylinder pressure the VE of the motor does drop. thats a given, but it shouldn't be dropping like it does. dyn cyl air and calc torque follow the same curve. without going into and overly complicated and boring who/what/when/where/why, i'll just stop there.
in short. the flow restriction of the manifold is starting to show up. look at others dyno charts from a cam only 6.2 setup. or heads and cam for that matter.
porting the stock is not a viable option. not enough material there to keep the strength of it.
if he doesn't take your stocker, i will
i was going back through some datalogs of various 6.2 trucks i have done. there are two that come to mind that would benefit from this. mine and another members on here. right about 5300 the air flow starts to slowly drop. i understand that as engine speed increases after peak torque/cylinder pressure the VE of the motor does drop. thats a given, but it shouldn't be dropping like it does. dyn cyl air and calc torque follow the same curve. without going into and overly complicated and boring who/what/when/where/why, i'll just stop there.
in short. the flow restriction of the manifold is starting to show up. look at others dyno charts from a cam only 6.2 setup. or heads and cam for that matter.
porting the stock is not a viable option. not enough material there to keep the strength of it.
if he doesn't take your stocker, i will
Oct 7, 2012 | 12:46 PM
#15
I ran 11.42 with a bigshot plate on the victor jr intake in an ext cab truck. I have a fast 4150 throttle body with it.
Last edited by dirt track racer 81; Oct 7, 2012 at 01:43 PM.
Oct 7, 2012 | 01:11 PM
#17
Seeing how horrible the fitment has been on from the other fast manifolds here lately I dont know that Id be that hip on doing a rain dance for another manifold from them.
Oct 7, 2012 | 01:32 PM
#18
Thread Starter
TECH Fanatic
Joined: Jul 2006
Posts: 1,737
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From: K.C.
it's more of an option than anything else. running big cams and heads on the stock intake manifold is similar to buying really expensive shoes to shove up your own ***.
take care of the problem before it becomes a problem.
take care of the problem before it becomes a problem.
