Throttle Body

donny82277 · January 26th, 2007, 05:22 PM

Can you change just the throttle body or do you need a plenum also? if so is a 70 or 75mm bbk right for a 03 Gt as an upgrade with headers to follow.

Slicey · January 26th, 2007, 05:33 PM

70mm unless your planing on some kind of forced induction later on. then go 75+.
You dont need a new plenum to go with your TB. If you want more gain then get one. Or just get your stock one drilled.

Trick Tuners · January 30th, 2007, 02:43 PM

The TB is worth very little on a mostly stock motor. I think they are worth about 5-10hp if you are putting down over 400.

sonicblue · January 30th, 2007, 08:38 PM

every little bit counts when it comes to hp but i wouldnt make those my first mods. i would do those mods later

January 26th, 2007, 05:22 PM	#1
donny82277 Newbie Join Date: Jan 2007 Posts: 39 iTrader: 0 reviews	Throttle Body Can you change just the throttle body or do you need a plenum also? if so is a 70 or 75mm bbk right for a 03 Gt as an upgrade with headers to follow.

January 26th, 2007, 05:33 PM	#2
Slicey MM Fanatic Join Date: Jun 2006 Location: Salt Lake , UT. Drive It Like You Stole It! Posts: 3,178 iTrader: 0 reviews	70mm unless your planing on some kind of forced induction later on. then go 75+. You dont need a new plenum to go with your TB. If you want more gain then get one. Or just get your stock one drilled. __________________ Official MM Zeppelineers. Crew member #3

January 30th, 2007, 02:43 PM	#3
Trick Tuners MM Fanatic KB'd GT Join Date: Nov 2006 Location: San Diego Posts: 4,471 iTrader: 3 reviews	The TB is worth very little on a mostly stock motor. I think they are worth about 5-10hp if you are putting down over 400. __________________ Check out my forums for stuff on troubleshooting, tuning, etc We teamed up with Socal Performance Racing to bring dyno tuning to San Diego. Be friends with us on FB

January 30th, 2007, 08:38 PM	#4
sonicblue Hardcore Enthusiast 1990 GT Join Date: Aug 2006 Location: dalzell, south carolina Posts: 1,436 iTrader: 0 reviews	every little bit counts when it comes to hp but i wouldnt make those my first mods. i would do those mods later __________________ 1990 5.0 getting all fixed up for next season 2004 mustang gt 520rwhp, 491 trq sold

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