70mm or 75mm ????

TyCouey2000GT · October 21st, 2007, 11:22 AM

I always hear that if you have no internal engine work, heads cams etc you should stic kwith the 70mm. And if you do have a beefed up motor you should get a 75mm. I've heard it can actually hurt you if you get a 75 when you dont need it. Well, my car has headers, full exhaust, chip, cai, and bigger fuel injectors, not sure what lb, but with that, I would thing I should stick with the 70mm. Along the road I will do more to my car but for now I think I need the 70mm. Do you think thats the right choice?

Comments and theorys appreciated. :]

HMUSN · October 21st, 2007, 11:24 AM

get the 75mm

why do you have bigger fuel injectors?

KhaosGT · October 21st, 2007, 12:24 PM

go with 75mm it wont hurt i just got done posting about this in another thread it just wont be used to its full potential until head work or forced induction is being used

95opal · October 21st, 2007, 01:16 PM

The throttle body myth lives on. Go to Accufabs site and read about throttlebody size. Either of those will flow more air than your motor will.

http://www.accufabracing.com/article%203.htm

mjkids · October 21st, 2007, 01:46 PM

go accufab, i have the 70mm on my but the 75mm will work to

TyCouey2000GT · October 21st, 2007, 02:24 PM

I've heard that it can actually hurt you and lose power w/o head work etc, but I guess it's just a myth? So I should get a 75mm and I'll get just as much power as I would with the 70mm? And if I get headwork etc done, that power it gives me will increase?

G.T. Rags · October 21st, 2007, 02:52 PM

i would stay away from PP dude.....

U get what u pay for.

ACCUFAB FTMFW

GTsetGO · October 21st, 2007, 03:02 PM

i have a 70 on mine

2kGT · October 21st, 2007, 03:10 PM

see sig

Dawgfude03GT · October 21st, 2007, 03:16 PM

go 75mm cause you never know. You might wanna keep adding more and more HP and you wont have to swap it out again later

TyCouey2000GT · October 21st, 2007, 07:26 PM

So the main fact is, If I get a 75mm now, I'll get just as much or more as i would with the 70mm, but no less right???

HMUSN · October 21st, 2007, 07:27 PM

correct.

Novanutcase · October 21st, 2007, 07:48 PM

Looks to me like, after reading the accufab article, on a stock engine the stock throttle body is fine or did I read the chart wrong?

John

95opal · October 21st, 2007, 09:34 PM

Originally Posted by Novanutcase

Looks to me like, after reading the accufab article, on a stock engine the stock throttle body is fine or did I read the chart wrong?

John

You read it correctly.

October 21st, 2007, 11:22 AM	#1
TyCouey2000GT Enthusiast 2000 Mustang GT Join Date: Jun 2007 Posts: 761 iTrader: 0 reviews	70mm or 75mm ???? I always hear that if you have no internal engine work, heads cams etc you should stic kwith the 70mm. And if you do have a beefed up motor you should get a 75mm. I've heard it can actually hurt you if you get a 75 when you dont need it. Well, my car has headers, full exhaust, chip, cai, and bigger fuel injectors, not sure what lb, but with that, I would thing I should stick with the 70mm. Along the road I will do more to my car but for now I think I need the 70mm. Do you think thats the right choice? Comments and theorys appreciated. :] __________________ Your Average GT

October 21st, 2007, 11:24 AM	#2
HMUSN Doc 1986 SVO 48.47@ 12.58 Join Date: Nov 2006 Posts: 37,050 iTrader: 11 reviews	get the 75mm why do you have bigger fuel injectors? __________________

October 21st, 2007, 12:24 PM	#3
KhaosGT Enthusiast 2004 Mustang GT Join Date: Jan 2007 Location: Fort Worth, TX Posts: 970 iTrader: 0 reviews	go with 75mm it wont hurt i just got done posting about this in another thread it just wont be used to its full potential until head work or forced induction is being used __________________ 2004 Black Mustang Gt When I see a 5.0...I respect my elders.

October 21st, 2007, 01:16 PM	#4
95opal Hardcore Enthusiast 95 opalfrost gt Join Date: Nov 2006 Location: Connecticut Posts: 1,516 iTrader: 0 reviews	The throttle body myth lives on. Go to Accufabs site and read about throttlebody size. Either of those will flow more air than your motor will. http://www.accufabracing.com/article%203.htm __________________ 5.0 magazines 94-04 performance mustangs feature car! Fall 2010

October 21st, 2007, 01:46 PM	#5
mjkids Enthusiast Join Date: Oct 2006 Location: ct Posts: 845 iTrader: 0 reviews	go accufab, i have the 70mm on my but the 75mm will work to __________________ 2000 ford mustang gt convertible 2004 ford lightning truck,,,,,sold 2001 ford mustang/cobra,,,,sold 2008 ford f-350 4x4 truck 1989 ford notch back 5.0 2006 custom build bobber

October 21st, 2007, 02:24 PM	#6
TyCouey2000GT Enthusiast 2000 Mustang GT Join Date: Jun 2007 Posts: 761 iTrader: 0 reviews	I've heard that it can actually hurt you and lose power w/o head work etc, but I guess it's just a myth? So I should get a 75mm and I'll get just as much power as I would with the 70mm? And if I get headwork etc done, that power it gives me will increase? __________________ Your Average GT

October 21st, 2007, 03:02 PM	#8
GTsetGO Cigar Assassin 2004 Mustang GT 12.88 @ 112 Join Date: Aug 2005 Location: A Galaxy Far, Far Away Posts: 14,083 iTrader: 10 reviews	i have a 70 on mine __________________ Cigar Samplers for Sale 2008 Acura TL-S - 2008 Honda Pilot EX-SE - 2008 Cain F Big Bear Paradox

October 21st, 2007, 03:10 PM	#9
2kGT Enthusiast Join Date: Oct 2007 Location: Upstate SC Posts: 922 iTrader: 0 reviews	see sig __________________ Accufab 75mm tb & plenum MRT h-pipe Flowmaster catback FRPP king cobra clutch FRPP aluminum driveshaft FRPP 4.10 gear TA Perfromance girdle Steeda tri-ax shifter Moser 31 spline axles FRPP C Springs

October 21st, 2007, 03:16 PM	#10
Dawgfude03GT Regular Join Date: Aug 2007 Location: Denver, CO. Posts: 335 iTrader: 0 reviews	go 75mm cause you never know. You might wanna keep adding more and more HP and you wont have to swap it out again later __________________ CAI, P&P 75mm Throttle Body and Intake Plenum, Pypes Cat Back Exhaust, FRPP 4:10 Gears. GOBAMA

October 21st, 2007, 07:26 PM	#11
TyCouey2000GT Enthusiast 2000 Mustang GT Join Date: Jun 2007 Posts: 761 iTrader: 0 reviews	So the main fact is, If I get a 75mm now, I'll get just as much or more as i would with the 70mm, but no less right??? __________________ Your Average GT

October 21st, 2007, 07:27 PM	#12
HMUSN Doc 1986 SVO 48.47@ 12.58 Join Date: Nov 2006 Posts: 37,050 iTrader: 11 reviews	correct. __________________

October 21st, 2007, 07:48 PM	#13
Novanutcase Hardcore Enthusiast 2003 GT Join Date: Oct 2007 Location: Los Angeles, California Posts: 1,099 iTrader: 0 reviews	Looks to me like, after reading the accufab article, on a stock engine the stock throttle body is fine or did I read the chart wrong? John __________________ SOLD - '03 GT, Max Moto Max Grip Box, Wilwood SL 6 front/DL4 rear Big Brake Kit, Corbeau Seats, MGW Short Shifter, MAC Long Tube Headers/Prochamber mid/ Flowmaster 40, FRPP 4.10, TrickFlow Diff Cover/75mm TB/Plenum, Eaton Posi, Moser 31 spl Axles

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