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Discussing Porting Stock Plenum and TB in the Modular Mustangs Forum. So I have an extra throttle body and plenum.... and a machine shop at my ... Modded Mustangs is the premier Ford Mustang Forum on the internet. We discuss all aspects of the Ford Mustang on the forum. Registered Users do not see the above ads. Please Register - It's Free! |
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#1 |
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Hardcore Enthusiast
97 GT
Too slow- no traction.
Join Date: Oct 2007
Location: Fort Collins and Pueblo, Colorado
Posts: 2,249
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Porting Stock Plenum and TB
So I have an extra throttle body and plenum.... and a machine shop at my school...
Would porting them make any big difference? Are there any websites that can show me how to do this? Or the specs that it can be made to? Thanks
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#2 |
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mm's nitrous mod
2000 mustang gt
11.79@115.83
Join Date: Oct 2006
Location: N.W. AR
Posts: 9,472
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there are gains to be had porting them. i ran a ported plenum and t/b for a while. if done correctly, they will flow competively with an aftermarket set up.
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right now, she is a jackstand warrior if the car was a horse, i would shoot it!!! ![]() project warhorse under construction being built by MP2 Performance |
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#3 |
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Hardcore Enthusiast
2000 Mustang GT
Join Date: Aug 2007
Location: Shelbyville, Indiana
Posts: 1,400
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Don't enlarge the area around the butterfly valve. If you do you won't be able to cut off the air flow to the motor and could end up with a 2000 rpm idle.
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latest tune: 370 rwhp/377 rwtq Garage: http://www.moddedmustangs.com/forums...-member-11329/ Previously Owned: 1966 Coronet 500, 426 ci est. 290-300 rwhp 1969 Camaro RS/SS, 350 ci est. 210-220 rwhp Today is the real muscle car era. |
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#4 |
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mm's nitrous mod
2000 mustang gt
11.79@115.83
Join Date: Oct 2006
Location: N.W. AR
Posts: 9,472
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i can sell ya a ported set up if you would like.
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right now, she is a jackstand warrior if the car was a horse, i would shoot it!!! ![]() project warhorse under construction being built by MP2 Performance |
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#5 | |
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Hardcore Enthusiast
1997 Saleen S281
Join Date: Feb 2007
Location: ZEBULON N.C.
Posts: 2,065
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+1 , I had this problem with a setup I bought off ebay.
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#6 |
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Regular
Join Date: Aug 2007
Posts: 191
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i port them now and then. It's less about material removal than it is about building up the floor on the short side turn of the plenum with some epoxy. I use a sanding wheel and a drill to enlarge the throat. Don't bother porting the TB... it's easy as hell to mess it up and you'll get nothing for it. It's better to get a 70mm or 75 (if supercharged) TB and bolt it up to a properly ported plenum.
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#7 |
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mm's nitrous mod
2000 mustang gt
11.79@115.83
Join Date: Oct 2006
Location: N.W. AR
Posts: 9,472
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its easy to port the t/b, hard to mess up if you are paying attention. usually on a mild car the ported t/b does nothing, i have done one on an tuned bolt on auto with damn good results.
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right now, she is a jackstand warrior if the car was a horse, i would shoot it!!! ![]() project warhorse under construction being built by MP2 Performance |
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