Plenum Question.
Thread Starter
Drifting
Joined: Nov 2001
Posts: 1,498
Likes: 0
From: Bucks county Pa
Plenum Question.
I want to port and polish the upper plenum and have a few question.
Can it be removed without removing the bottom bolts in the runners?
I plan to open the ports to the gaskets, remove the humps and clean and smooth the inside as much as possible. Will there be anything gained power-wise from this or is this only good with new base etc?
Two friends one w/vette one w/ GTA both said dont waste money on runners both had Edelbrock and were unimpressed. Do you agree? :cheers:
Can it be removed without removing the bottom bolts in the runners?
I plan to open the ports to the gaskets, remove the humps and clean and smooth the inside as much as possible. Will there be anything gained power-wise from this or is this only good with new base etc?
Two friends one w/vette one w/ GTA both said dont waste money on runners both had Edelbrock and were unimpressed. Do you agree? :cheers:
Team Owner
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
Re: Plenum Question. (blk90rdstr)
Yes, you can pull the plenum without pulling the runners.
With an otherwise stock motor you likely won't feel any difference, though it's a good start in getting to know your TPI and preparation for future mods.
While the plenum is off you might want to do the TB coolant bypass mod; this will not only keep the intake air cooler but also make future intake mods a lot easier. Also you might want to relocate the MAT sensor from under the rear of the plenum into the air filter lid. Installing an AFPR would be a nice adder if you plan on more mods.
Actually the runners are the biggest air flow restrictors. There are several common approaches to improving intake air flow:
-super ram=new intake base, runners and plenum
-mini ram=new intake base, runners and plenum
-upgraded TPI=BM base, LT runners, ported plenum
-siamese base with stock runners and ported plenum
If interested, do a search on any of these topics to get a better idea of what their about.
With an otherwise stock motor you likely won't feel any difference, though it's a good start in getting to know your TPI and preparation for future mods.
While the plenum is off you might want to do the TB coolant bypass mod; this will not only keep the intake air cooler but also make future intake mods a lot easier. Also you might want to relocate the MAT sensor from under the rear of the plenum into the air filter lid. Installing an AFPR would be a nice adder if you plan on more mods.
Actually the runners are the biggest air flow restrictors. There are several common approaches to improving intake air flow:
-super ram=new intake base, runners and plenum
-mini ram=new intake base, runners and plenum
-upgraded TPI=BM base, LT runners, ported plenum
-siamese base with stock runners and ported plenum
If interested, do a search on any of these topics to get a better idea of what their about.
