Backpressure Testing With New Hot Pipes
10-15-2012, 11:05 AM
#12
10-15-2012, 02:29 PM
#19
Another reason the log manifold works aswell as it does is cause the waist gate is before the log, I know it's not going to make a huge difference but your bleading off a fair amound of ex that never has to go throw the log, if the waist gate was right before the turbo like it is now I bet you would have seen more gains then you did.
10-15-2012, 10:15 PM
#20
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Nice results. They pretty much match what I saw when converting to truck manifolds that Y together just before the turbo.
Turbo headers produce even less back pressure but its almost negligible unless hp is up there. I need to find my compare notes but less than 1.5 rings a bell.
I know exactly what ur describing in regards to spool up. With a Y design it's very predictable and comes in almost linear vs almost instant. Kind of decieving because the truck is pulling but the instant rush of torque is spread out. And talk about how hard the style pulls in the upper rpms is crazy. . I prefer the linear pull.
All the kits work great and it shows just depends on far u take them.
Turbo headers produce even less back pressure but its almost negligible unless hp is up there. I need to find my compare notes but less than 1.5 rings a bell.
I know exactly what ur describing in regards to spool up. With a Y design it's very predictable and comes in almost linear vs almost instant. Kind of decieving because the truck is pulling but the instant rush of torque is spread out. And talk about how hard the style pulls in the upper rpms is crazy. . I prefer the linear pull.
All the kits work great and it shows just depends on far u take them.