Black Car Fever
- Sep 15, 2004
How to identify aftermarket plenum
That seems beyond fair what u think ?
A new setup is $540, so I think it’s fair.
The Precision plenum and RJC racing ADPP (air distribution power plate) has the most even airflow of all of them.
I went with the Precision plenum and power plate for this reason, using a Steve Monroe modded/ rebuilt stock throttle body (62mm) to go with some flow matched injectors.
Without the power plate the rear cylinders go lean and will detonate while the others run rich.
Typically, you can run a couple more pounds of boost with no detonation using any matching power plate no matter what plenum is used.
If you check out the charts the Accufab /w power plate is tied for second behind the Precision /w power plate.
The Precision plenum is 5/8” taller to clear a 4” maf pipe whereas the Accufab is not as tall for what it’s worth.