how much gains from porting stock plenum

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romgolferman

Founding Member

Mar 24, 2001

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St. Louis

Oct 8, 2005

#1

• Oct 8, 2005

• #1

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.

 

R

romgolferman

Founding Member

Mar 24, 2001

355

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St. Louis

Oct 8, 2005

#2

• Oct 8, 2005

• #2

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

 

slvrbullIT

New Member

May 27, 2003

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Dallas, TX

Oct 8, 2005

#3

• Oct 8, 2005

• #3

romgolferman said:

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

Click to expand...

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

 

twogts4us

15 Year Member

Apr 1, 2004

4,188

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79

Dunedin, FL

Oct 8, 2005

#4

• Oct 8, 2005

• #4

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

New Member

Nov 19, 2002

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Mansfield, TX

Oct 9, 2005

#5

• Oct 9, 2005

• #5

twogts4us said:

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

Click to expand...

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

Matt

 

BlackO3GT

New Member

Jul 5, 2004

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Oct 10, 2005

#6

• Oct 10, 2005

• #6

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

 

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romgolferman

Founding Member

Mar 24, 2001

355

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St. Louis

Oct 10, 2005

#7

• Oct 10, 2005

• #7

thanks

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

 

Dark Knight GT

I can't get it up......ok that didn't sound right.

May 26, 2003

3,653

2

56

Ozark, Missouri

Oct 10, 2005

#8

• Oct 10, 2005

• #8

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.