RS4 Manifolds vs. AWE Headers? I'm assuming AWEs headers will flo a lot more than RS4 right?
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08-20-2002, 02:30 PM
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sigh... there is more to it than peak power.
The one thing that RS4 owners *repeatedly* complain about is lack of low end torque improvements when chipping.
The anti-reversion collector design of our manifolds help tremendously in turbo spool up, which results in better drivability through an increase in low end power.
We see full boost of 22psi by 3k rpms when using our headers with the balance of our kit.
The collector type design also helps with high end power production, especially post peak on the S4. A log type design like the factory's creates turbulence at the exit of each downstream exhaust port, which is not ultimate for cylinder scavenging. We keep the primaries narrow to maintain gas velocities, and dump into an anti-reversion collector to minimize cylinder pulse reversion, while providing a usable expansion volume for the intersection of 3 cylinders.
Before and after dyno sheets coming very soon.
The anti-reversion collector design of our manifolds help tremendously in turbo spool up, which results in better drivability through an increase in low end power.
We see full boost of 22psi by 3k rpms when using our headers with the balance of our kit.
The collector type design also helps with high end power production, especially post peak on the S4. A log type design like the factory's creates turbulence at the exit of each downstream exhaust port, which is not ultimate for cylinder scavenging. We keep the primaries narrow to maintain gas velocities, and dump into an anti-reversion collector to minimize cylinder pulse reversion, while providing a usable expansion volume for the intersection of 3 cylinders.
Before and after dyno sheets coming very soon.