upgrading throttle body

iammclovin804 · May 14th, 2010, 11:37 AM

so from what i've read on here, its pretty much pointless to upgrade the throttle body. I was thinkin maybe getting a 70mm throttle body then porting the upper and lower intakes to match. would it still be pointless to get a new throttle body?

ESG-642T · May 14th, 2010, 11:38 AM

In all reality the 300$ isn't worth it even with ported intakes.

Codeman · May 14th, 2010, 11:46 AM

the only time a TB would help at all is if you go with FI or some serious power.

davidstivers09 · May 14th, 2010, 01:40 PM

What exactly does the throttle body do?

Rich J · May 14th, 2010, 02:08 PM

Originally Posted by davidstivers09

What exactly does the throttle body do?

It opens when u hit the accelerator to let more air go in your engine so you can accelerate, its right above your air intake. It also controls your idle with a screw that is attached to it.

Mr. Red Pony · May 14th, 2010, 02:28 PM

Originally Posted by davidstivers09

What exactly does the throttle body do?

:facepalm

Codeman · May 14th, 2010, 02:46 PM

A bigger tb won't do anything hp wise but it will give a little notice in different throttle response. just do to the greater volume of air entering quicker. it is not worth the 300 bucks. That would be the last mod I would do on our vehicles. You could get a lot better bolt ons for 300 bucks.

davidstivers09 · May 14th, 2010, 05:16 PM

Thats what I thought, what kind of throttle body would you upgrade to anyways?

rfcsoulja · May 14th, 2010, 05:31 PM

Originally Posted by davidstivers09

Thats what I thought, what kind of throttle body would you upgrade to anyways?

. . . .I wouldn't. . .I've read a few cases where people have switched over and have only seen a 2-3 hp gain with force induction (around the 400hp mark).

stangcharger · May 14th, 2010, 05:55 PM

Originally Posted by rfcsoulja

. . . .I wouldn't. . .I've read a few cases where people have switched over and have only seen a 2-3 hp gain with force induction (around the 400hp mark).

I made 385rwhp on 91 oct @11 psi with factory TB not ported. Switched to 70mm and saw no difference.

And the Throttle body response difference is due to getting more percentage of the air your engine needs at a sooner point in the pedal position.

example.

Stock TB- You see 50% air needed at 50% throttle.

70mm TB- you see 80% air needed at 50% throttle.

Only reason to upgrade TB is if it can not keep up with CFM needed by the engine itself.

southfour! · May 14th, 2010, 06:00 PM

If you really want to get a bigger throttle body get a cheap GT one, they can be made to work with VAP's tb jig so im sure you can make it work on a stock setup, however i still think this would be a waste.

I could be wrong but if you up grade your throttle body to say 70mm your intake opening would still be stock right, making it useless?

BISKIT · May 14th, 2010, 06:10 PM

My sixer had the prototype tb from accufab which we helped road test. Power gains were minimal for the cost of what it would be.

Don't waste your money.

If you haven't yet, do some gears. You will feel the difference A LOT more and spend just a little more than you would on a tb.

Garman91 · May 14th, 2010, 11:03 PM

I have a BBK 70mm and the power gain wasn't noticeable. It also has a bad habit of "sticking." Very hard to smoothly open it from idle making driveability pretty crappy. Anyone who has one, take it apart, knife-edge the butterfly, polish the crap outta the housing where the plate closes at, and grab some all purpose bearing grease and put a very light coat on the rubber o-rings, that'll make it smooth again, for about 8 months...

Ported the upper intake to match the TB opening and then you run into having no material left at the top where the idle air bypass passage is... It's all together a pain for no gain...

You've been warned, LoL.

iammclovin804 · May 14th, 2010, 11:09 PM

alright well i suppose i wont waste any money on that ha. my plan is to build a 4.2 with forged internals and i suppose a kenne bell 2.2 now. hopefully she'll be pretty fast.

ESG-642T · May 15th, 2010, 04:22 AM

Originally Posted by iammclovin804

alright well i suppose i wont waste any money on that ha. my plan is to build a 4.2 with forged internals and i suppose a kenne bell 2.2 now. hopefully she'll be pretty fast.

Most plans, never seem to happen...
I'm just saying.

Garman91 · May 15th, 2010, 09:36 AM

^ What he said.

Codeman · May 15th, 2010, 11:06 AM

there is no hurt in dreaming though.

iammclovin804 · May 15th, 2010, 01:08 PM

yeahh but when i make a plan, i follow through with it. just gotta wait until i get out of boot camp to start.

davidstivers09 · May 15th, 2010, 02:57 PM

Plans can be accomplished, they just take time.

rfcsoulja · May 15th, 2010, 03:08 PM

Originally Posted by ESG-642T

Most plans, never seem to happen...
I'm just saying.

My planes all along were to make about 330 hp. Heads and a supercharger and I should be there.

May 14th, 2010, 11:37 AM	#1
iammclovin804 Regular 2004 Mustang GT Join Date: Mar 2010 Location: Kaneohe Bay, HI Posts: 342 iTrader: 0 reviews	upgrading throttle body so from what i've read on here, its pretty much pointless to upgrade the throttle body. I was thinkin maybe getting a 70mm throttle body then porting the upper and lower intakes to match. would it still be pointless to get a new throttle body?

May 14th, 2010, 11:38 AM	#2
ESG-642T [8MINUS2] 2002, Ford, v6 Join Date: Feb 2007 Location: TEXAS Posts: 12,319 iTrader: 0 reviews	In all reality the 300$ isn't worth it even with ported intakes. __________________ Hi, You can call me Kyle Random ESG fact: Had a prochamber on his v6 before it was popular. WTB: v6 BBK valve covers

May 14th, 2010, 11:46 AM	#3
Codeman Hardcore Enthusiast Join Date: Nov 2007 Location: North Dakota Posts: 2,933 iTrader: 1 reviews	the only time a TB would help at all is if you go with FI or some serious power. __________________ UDP, CAI, True Duals, LTs, 91 Tune from TT, 3.73 gears, Tlok,Windstar upper, GT TB, Ported lower, Comp 218/226 cam, FRPP C Springs, J&M LCA, Tokico Blue shocks and struts, and J&M Full Length Subframe Connectors

May 14th, 2010, 02:46 PM	#7
Codeman Hardcore Enthusiast Join Date: Nov 2007 Location: North Dakota Posts: 2,933 iTrader: 1 reviews	A bigger tb won't do anything hp wise but it will give a little notice in different throttle response. just do to the greater volume of air entering quicker. it is not worth the 300 bucks. That would be the last mod I would do on our vehicles. You could get a lot better bolt ons for 300 bucks. __________________ UDP, CAI, True Duals, LTs, 91 Tune from TT, 3.73 gears, Tlok,Windstar upper, GT TB, Ported lower, Comp 218/226 cam, FRPP C Springs, J&M LCA, Tokico Blue shocks and struts, and J&M Full Length Subframe Connectors

May 14th, 2010, 06:00 PM	#11
southfour! Not Banned 2000 Mustang V6 2000 Silverado 1500 Join Date: Jan 2010 Location: Calgary, Canada Posts: 4,550 iTrader: 3 reviews	If you really want to get a bigger throttle body get a cheap GT one, they can be made to work with VAP's tb jig so im sure you can make it work on a stock setup, however i still think this would be a waste. I could be wrong but if you up grade your throttle body to say 70mm your intake opening would still be stock right, making it useless? __________________ H/C/I V6 BMC Member: 12521 Cam Video My Build Thread

May 14th, 2010, 01:40 PM	#4
davidstivers09 Enthusiast 1999 Mustang v6 Join Date: Mar 2010 Location: Indiana Posts: 967 iTrader: 0 reviews	What exactly does the throttle body do?

May 14th, 2010, 05:16 PM	#8
davidstivers09 Enthusiast 1999 Mustang v6 Join Date: Mar 2010 Location: Indiana Posts: 967 iTrader: 0 reviews	Thats what I thought, what kind of throttle body would you upgrade to anyways?

May 14th, 2010, 06:10 PM	#12
BISKIT Newbie 2006 GT Twin Turbo Join Date: Feb 2010 Location: Los Angeles Posts: 19 iTrader: 0 reviews	My sixer had the prototype tb from accufab which we helped road test. Power gains were minimal for the cost of what it would be. Don't waste your money. If you haven't yet, do some gears. You will feel the difference A LOT more and spend just a little more than you would on a tb.

May 14th, 2010, 11:03 PM	#13
Garman91 Regular 02 Mustang V6 13.605 @ 101.60 Join Date: Jan 2007 Location: Brandon, FL Posts: 336 iTrader: 6 reviews	I have a BBK 70mm and the power gain wasn't noticeable. It also has a bad habit of "sticking." Very hard to smoothly open it from idle making driveability pretty crappy. Anyone who has one, take it apart, knife-edge the butterfly, polish the crap outta the housing where the plate closes at, and grab some all purpose bearing grease and put a very light coat on the rubber o-rings, that'll make it smooth again, for about 8 months... Ported the upper intake to match the TB opening and then you run into having no material left at the top where the idle air bypass passage is... It's all together a pain for no gain... You've been warned, LoL. __________________ BBK Intake, BBK 70MM Throttle Body w/ Port Matched Upper Intake, BBK Shorty Headers, Magnaflow Exhaust, GT Tips, Eibach Sportline Springs, EGR Delete, Aluminum DS, 7.5 T-Lok w/ 3.73's, Centerforce Clutch, ZEX 75 Shot, Sniper Tuned

May 14th, 2010, 11:09 PM	#14
iammclovin804 Regular 2004 Mustang GT Join Date: Mar 2010 Location: Kaneohe Bay, HI Posts: 342 iTrader: 0 reviews	alright well i suppose i wont waste any money on that ha. my plan is to build a 4.2 with forged internals and i suppose a kenne bell 2.2 now. hopefully she'll be pretty fast.

May 15th, 2010, 09:36 AM	#16
Garman91 Regular 02 Mustang V6 13.605 @ 101.60 Join Date: Jan 2007 Location: Brandon, FL Posts: 336 iTrader: 6 reviews	^ What he said. __________________ BBK Intake, BBK 70MM Throttle Body w/ Port Matched Upper Intake, BBK Shorty Headers, Magnaflow Exhaust, GT Tips, Eibach Sportline Springs, EGR Delete, Aluminum DS, 7.5 T-Lok w/ 3.73's, Centerforce Clutch, ZEX 75 Shot, Sniper Tuned

May 15th, 2010, 11:06 AM	#17
Codeman Hardcore Enthusiast Join Date: Nov 2007 Location: North Dakota Posts: 2,933 iTrader: 1 reviews	there is no hurt in dreaming though. __________________ UDP, CAI, True Duals, LTs, 91 Tune from TT, 3.73 gears, Tlok,Windstar upper, GT TB, Ported lower, Comp 218/226 cam, FRPP C Springs, J&M LCA, Tokico Blue shocks and struts, and J&M Full Length Subframe Connectors

May 15th, 2010, 01:08 PM	#18
iammclovin804 Regular 2004 Mustang GT Join Date: Mar 2010 Location: Kaneohe Bay, HI Posts: 342 iTrader: 0 reviews	yeahh but when i make a plan, i follow through with it. just gotta wait until i get out of boot camp to start.

May 15th, 2010, 02:57 PM	#19
davidstivers09 Enthusiast 1999 Mustang v6 Join Date: Mar 2010 Location: Indiana Posts: 967 iTrader: 0 reviews	Plans can be accomplished, they just take time.

Remove Advertisements Sponsored Links
Ford Mustang Forum Advertisement

Threads Similar to: upgrading throttle body
Thread	Thread Starter	Forum	Replies	Last Post
Throttle Body?	scxc15	4V / SVT	6	May 5th, 2009 09:12 PM
Throttle body 70 or 75?	JerseyTrueBlue	99-04	15	April 23rd, 2009 12:33 AM
throttle body	kreil45	94-95	3	March 23rd, 2009 03:58 PM
Throttle Body	cobrarob	4V / SVT	18	April 13th, 2008 04:55 PM
Throttle Body?	stangNV	2005 - 2010	9	March 30th, 2008 06:59 PM

All times are GMT -4. The time now is 10:46 PM.
Contact Us - Modded Mustangs : Ford Mustang Forums - Privacy Statement - Top
Modded Mustangs is ©2005-2008, All Rights Reserved, And is Not Affiliated with Ford Motor Company. Forum is powered by vBulletin ©2000 - 2012, Jelsoft Ent. Ltd. & SEO by vBSEO 3.3.2 ©2009, Crawlability, Inc.