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aftermarket throttle body

  • Thread starter Thread starter gtstang86
  • Start date Start date Dec 27, 2007

gtstang86

New Member
May 8, 2006
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California
Dec 27, 2007
#1
  • Dec 27, 2007
  • #1
my stock throttle body is 70mm. is there any advantage to buying to buying a aftermarket throttle body of the same size? i just have some minor bolt on mods so i dont think i need anything bigger than 70mm.
 

Black95GTS

Active Member
Jan 8, 2004
1,644
3
38
Marlborough, MA
Dec 27, 2007
#2
  • Dec 27, 2007
  • #2
Your stock throttle body is 60mm if you have a 94-95 5.0. There is an advantage to upgrading, however, if you have a few minor bolt ons you probably don't need it.

Adam
 

Killercanary

The car that set the bar.
Founding Member
Nov 29, 1999
5,676
1
76
Altoona, PA
Dec 27, 2007
#3
  • Dec 27, 2007
  • #3
Black95GTS said:
Your stock throttle body is 60mm if you have a 94-95 5.0. There is an advantage to upgrading, however, if you have a few minor bolt ons you probably don't need it.

Adam
Click to expand...

I agree.
 

5spd GT

"the 5.0 owns all"
Founding Member
Aug 7, 2002
9,516
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99
Arkansas
Dec 27, 2007
#4
  • Dec 27, 2007
  • #4
One 70mm throttle body may not flow like another 70mm throttle body, if that is what you are asking

Shaft thickness, blade thickness, screw protrusion, and finish shape can vary between different brands which changes flow potential.
 

earleys94gt

Active Member
Aug 31, 2003
1,223
16
49
Ashley, Ohio
Dec 28, 2007
#5
  • Dec 28, 2007
  • #5
Also remember, unless the intake's opening is 70mm,like the throttle body, you aren't flowing all "70mm"
 

95BlueStallion

My assy trans to myself
15 Year Member
Feb 22, 2007
5,125
3,091
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Cedar Rapids, Iowa
Dec 28, 2007
#6
  • Dec 28, 2007
  • #6
5spd GT said:
One 70mm throttle body may not flow like another 70mm throttle body, if that is what you are asking

Shaft thickness, blade thickness, screw protrusion, and finish shape can vary between different brands which changes flow potential.
Click to expand...

Sorry to hijack, but it should help the original poster... Would anyone like to chime in with their opinion on which aftermarket 70 or 75mm throttle body will flow the best? Has anyone done research to prove one brand better than others?
 

5spd GT

"the 5.0 owns all"
Founding Member
Aug 7, 2002
9,516
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99
Arkansas
Dec 28, 2007
#7
  • Dec 28, 2007
  • #7
George Klass has stated many times that their throttle bodies flowed the best, after he compared them to the competition.

With that being said, George Klass is at Accufab
 

Dino Dino Bambino

15 Year Member
Jun 13, 2007
1,672
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79
Cyprus
Dec 30, 2007
#8
  • Dec 30, 2007
  • #8
95BlueStallion said:
Sorry to hijack, but it should help the original poster... Would anyone like to chime in with their opinion on which aftermarket 70 or 75mm throttle body will flow the best? Has anyone done research to prove one brand better than others?
Click to expand...

I haven't found any articles describing a direct TB comparison test so I can't answer the question directly. I do have a Summit Racing 75mm TB which is a very nice piece, and I ported the upper intake manifold opening to match. Throttle response was much improved and I like it.
 

GTA_V6_Mustang

Active Member
Nov 29, 2004
1,326
3
39
Miami, FL
Dec 30, 2007
#9
  • Dec 30, 2007
  • #9
I am planning on a GT40 head swap with the upper/lower fully ported, but want to put on a 75mm TB would that be overkill or should I just go with a 70
 

5spd GT

"the 5.0 owns all"
Founding Member
Aug 7, 2002
9,516
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99
Arkansas
Dec 30, 2007
#10
  • Dec 30, 2007
  • #10
A larger blade is doing to produce the same thing, described in two different ways:

1. More throttle response.

2. Touchy throttle response.

A larger surface area blade will let more air in at part throttle, but in many applications the wide open throttle performance is unaffected.
 

GTA_V6_Mustang

Active Member
Nov 29, 2004
1,326
3
39
Miami, FL
Dec 30, 2007
#11
  • Dec 30, 2007
  • #11
5spd GT said:
A larger blade is doing to produce the same thing, described in two different ways:

1. More throttle response.

2. Touchy throttle response.

A larger surface area blade will let more air in at part throttle, but in many applications the wide open throttle performance is unaffected.
Click to expand...

Wow that was extremely well put. And makes complete sense.
 
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