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Old 04-22-2015   #11
Locobob
 
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Default Re: ported plenum and injector housings..

This is a 91 with just a cat back exhaust, before and after intake porting. This is a really old dyno and it has less aggressive porting than I do now but you can see the rpm range - gains start around 4200rpm.
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Old 04-22-2015   #12
LGAFF
 
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Default Re: ported plenum and injector housings..

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Originally Posted by Vette73 View Post
700 for the porting....From what I understand is you send him 700.....He ports one, sends you the plenum when it's ready....Then you send him yours...

Thats what I charge.....
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Old 04-22-2015   #13
Vette73
 
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Default Re: ported plenum and injector housings..

Ok my bad....I stand corrected...
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Old 04-23-2015   #14
Bearly Flying
 
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Default Re: ported plenum and injector housings..

Cheap..... Considering the work that goes into doing a good porting job, Where else can you buy horsepower at that rate?

And the nice thing , it is not adding additional stress to your engine, it is only making it more efficient.
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Old 04-23-2015   #15
G8nightman
 
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Default Re: ported plenum and injector housings..

Quote:
Originally Posted by Locobob View Post
This is a 91 with just a cat back exhaust, before and after intake porting. This is a really old dyno and it has less aggressive porting than I do now but you can see the rpm range - gains start around 4200rpm.
Is this just the plenum ported or the fuel injector housing as well?
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Old 04-24-2015   #16
LGAFF
 
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Default Re: ported plenum and injector housings..

For my or Locobobs thats both the plenum and IHs being ported
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Old 04-24-2015   #17
Billy Mild
 
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Default Re: ported plenum and injector housings..

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Originally Posted by LGAFF View Post
For my or Locobobs thats both the plenum and IHs being ported
How much power does it usually add? Is it 20-30 WHP?

I assume you have to retune after this mod?
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Old 04-24-2015   #18
LGAFF
 
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Default Re: ported plenum and injector housings..

Thats a safe #, 20-30 RWHP. Tuning will optimize...however the power levels vary based upon the health of the motor and were the cam timing is from the factory.
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Old 04-24-2015   #19
JohnWins
 
Join Date: Jun 2014
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Default Re: ported plenum and injector housings..

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Originally Posted by Locobob View Post
Actually I charge $900 to do a customer supplied, $1500 for my core - $600 refunded with core return. I do these completely by hand - usually 60-70 hours of meticulous work.
That's awesome that you and LGAFF both offer a good price on the porting. How much power will you pickup with porting the TB & air horn. Should you get a Marc H or other chip after the porting, how much power would you be leaving on the table without it?
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Old 04-24-2015   #20
Jim Nolan
 
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Default Re: ported plenum and injector housings..

You have to get the chip e-programmed, otherwise there will not be a significant difference in performance. When you give it more air you have to give it more gas. Expect your mileage to drop slightly, more if the heads are done. It's addictive, when I had the heads done and headers, no cats dyno tuned the HP climbed through 6500 leveled off and did not drop off through 7200. If I had the cash I would go 415..........................Wheres my ride Ted?

Last edited by Jim Nolan; 04-24-2015 at 08:11 PM.
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