how much gains from porting stock plenum

[romgolferman]

Im going to pull mine off and hog it out a bit. what kind of gains should i see. is it worth doing. My mods in my sig.

 

[romgolferman]

Nobody knows about this. ok so what gains would i get with an aftermarket plenum

 

[slvrbullIT]

Nobody knows about this. ok so what gains would i get with an aftermarket plenum

With just an aftermarket plenum I'd say 5-10 rwhp.

 

[twogts4us]

Search, my friend...there was just a thread on this same subject. As far as aftermarket plenums, I'd suggest these articles - The 2V Plenum Showdown - 70mm TB and The Plenum Showdown Part II - 75mm TB on www.modulardepot.com

 

[03trubluGT]

Search, my friend...there was just a thread on this same subject. As far as aftermarket plenums, I'd suggest these articles - The 2V Plenum Showdown - 70mm TB and The Plenum Showdown Part II - 75mm TB on www.modulardepot.com

Thanks for the cheap, shameless plug......

Matt

 

[BlackO3GT]

Not worth porting it!!!! Its cheaper and you get more HP with a aftermarket

 

[romgolferman]

thanks

thanks man, that is the answer i was looking for.

 

[Dark Knight GT]

Porting and polishing the stock plenum can yield a few rwhp across the power band, but nothing to get overly excited about. As said above, an aftermarket plenum is the best route to go. Be sure to look into getting a bigger matching throttle body to go with the plenum, should you get one.

Go to www.rpmoutlet.com and search through their intake pieces. They have some nice throttle/plenum combo's for a good price. BBK 75mm throttle body and matching plenum for only 300 dollars.