Need help choosing a t-body!!!!! - 2003-04 Mach 1 Registry Owners Club

BIG4CAM · 03-07-2010, 07:35 PM

Ok, I just went through the headache of trying to make my 62mm BBK throttle body work on my mach. After fiddling around with emery cloth on the throttle blade edges, and centering the blades and drilling an air bleed hole in the throttle body I could not get rid of the binding in the pedal. Its interesting when there's no vacuum in the manifold with the engine of the throttle is fine, start the motor up and its like it sucks the throttle blades shut. This absolutely ticked me off!!!! It was so bad that I couldnt even drive the car with it on. So for now the stock t-body is back on and now im in the market for a replacement. I was thinking about an AccuFab unit, after this fiasco with the bbk, the extra money for the AccuFab looks like its worth it. Feel free to make recommendations as I need feedback to make a better decision. Please only recommend a t-body if YOU OWN AND USE IT!!!! I want real world info please! Thanks

JeromeMach1 · 03-07-2010, 07:59 PM

For the power level you are at, stock. Mine is stock. No headaches.

Jerome

PCPRO · 03-07-2010, 08:07 PM

The quality on the Accufab is 1st class.

BluBlurr32V · 03-07-2010, 08:53 PM

I agree with Jarome.

I have an Accufab and its coming off. I've done everything to fix the idle issue and it still remains. Besides there are no gains other that a stiffer pedal feel. That's about the only thing I will miss.

The AntiRice · 03-07-2010, 09:16 PM

yup i had problems with my accufab too. tried everything from having my tuner play with a few things iirc dashpot decay rate or something like that and i even tried about 20 different iac restricters with as many different hole sizes and combinations as i could come up with. tried playing with the tps sensor and still nothin. ended up selling it at a lose.

Lonestar7 · 03-08-2010, 12:09 AM

I have the AccuFab works like a charm and no problems with it. You get what you pay for and AccuFab rocks!

LS

Mudd92 · 03-08-2010, 07:17 AM

ive got an accufab that came on the car when i bought it, but its great no issues. OCCASIONALY the throttle will stay around 1100 or so but i just tap the gas a little and its back to normal. Really has depended on the weather.

SHAKEN · 03-08-2010, 10:42 AM

Quote:

Originally Posted by lonestar7

i have the accufab works like a charm and no problems with it. You get what you pay for and accufab rocks!

Ls

+1

JeromeMach1 · 03-08-2010, 11:01 AM

Let's put quality asside. Why spend $350 on something that offers a more desirable pedal feel but no hp/tq gains?

Jerome

Fenixfire · 03-08-2010, 02:44 PM

Quote:

Originally Posted by JeromeMach1

Let's put quality asside. Why spend $350 on something that offers a more desirable pedal feel but no hp/tq gains?

Jerome

Actually the accufabs run about $450 dollars. You are better off sticking with the stock throttle body. If you decide to go FI later then at that point you will want a single blade throttle body anyway. Only then will you see gains over the stock TB.

SHAKEN · 03-08-2010, 03:51 PM

I bought mine for $230.00 from a local Reg member. Installed it and noticed a improved throttle response with no idle issues.

Which would you rather have?.

JeromeMach1 · 03-08-2010, 10:50 PM

Quote:

Which would you rather have?.

Depends on what the before and after hp/tq numbers were. Present some data so we can choose.

What performance gain does throttle response get you?

Jerome

Fenixfire · 03-09-2010, 02:19 AM

Quote:

Originally Posted by JeromeMach1

Depends on what the before and after hp/tq numbers were. Present some data so we can choose.

What performance gain does throttle response get you?

Jerome

More kick in the pants. Thats about it. As if these cars dont have enough of that.

j rick kirby · 03-09-2010, 08:08 AM

I had a BBK on a T-Bird SC a few years ago that did the same binding.It turns out there is a screw on the TB that prevents that then the IAC compensates to put the idle where it belongs.Sure was an easy fix and I felt more stupid than usual.

na svt · 03-09-2010, 11:19 AM

Stock. $300-$400 for a mod that provides no hp gain is a waste IMHO.

The AntiRice · 03-09-2010, 12:08 PM

when i had mine in for all of like 3 days i loved the throttle response but other than that it really wasnt worth the headaches it brought with it.

my fear · 03-09-2010, 12:13 PM

Quote:

Originally Posted by na svt

Stock. $300-$400 for a mod that provides no hp gain is a waste IMHO.

especially since you can order a intake spacer from roy for around 130 (that's what i spent on min) and gain torque and horsepower.

03-07-2010, 07:35 PM	#1
BIG4CAM Finally Bought One Join Date: Mar 2006 Location: Returning Pop Bottles Posts: 476	Need help choosing a t-body!!!!! Ok, I just went through the headache of trying to make my 62mm BBK throttle body work on my mach. After fiddling around with emery cloth on the throttle blade edges, and centering the blades and drilling an air bleed hole in the throttle body I could not get rid of the binding in the pedal. Its interesting when there's no vacuum in the manifold with the engine of the throttle is fine, start the motor up and its like it sucks the throttle blades shut. This absolutely ticked me off!!!! It was so bad that I couldnt even drive the car with it on. So for now the stock t-body is back on and now im in the market for a replacement. I was thinking about an AccuFab unit, after this fiasco with the bbk, the extra money for the AccuFab looks like its worth it. Feel free to make recommendations as I need feedback to make a better decision. Please only recommend a t-body if YOU OWN AND USE IT!!!! I want real world info please! Thanks __________________ 2003 Mach 1 32v DOHC Tremec TKO 600 Mods: Roy's Intake, 98 cams, LT's with 3 inch x pipe and spintechs, 4.56 gears Best ET: 12.157@112.8 1.627 60ft Best ET street tire: 12.89@110 1997 Mustang GT 4r70w 232rwhp/287tq 2001 P.I. motor swap The slug Cruiser's best ET 13.89@98.7 1994 Lightning w276k miles 89gt camshaft w/hughes 2400k convertor 14.58@ 91mph 2.0560ft Rusty but Trusty, still getting down and dirty on the street

03-07-2010, 07:59 PM	#2
JeromeMach1 Registered User Join Date: Aug 2003 Location: Simi Valley, CA Posts: 1,383	Re: Need help choosing a t-body!!!!! For the power level you are at, stock. Mine is stock. No headaches. Jerome __________________ 03 Mach1 5spd BB/Stroker built by Eddie Rios Addiction Motorsports P&P 03 Heads by Al P Custom cams by NASVT Nazty PSR SAE 420rwhp SAE 387rwt 1.56 60ft 11.44ET 122.1mph 1700 DA

03-07-2010, 08:07 PM	#3
PCPRO Big Daddy Join Date: Sep 2007 Location: Lawrenceburg, Ky. Posts: 322	Re: Need help choosing a t-body!!!!! The quality on the Accufab is 1st class. __________________ Custom cams spec'd by nasvt,Accufab t-body, ported short runner by nasvt,Roy's 3/4" intake spacer,JLT RAI,AFM 10" filter,PMAS 95mm Velocity Maf,Stewart water pump,Even-flow cooling mod,Steeda UD damper,Steeda wp pulley,Cobra R alt. & p/s pulleys,ARH 1.750" Lt's & off road X-pipe,Magnaflow catback,Fidanza aluminum flywheel,fidanza 2.1 clutch and lightweight billet pressure plate, FRPP aluminum d/s. 345rwhp & 340rwtq with 98 cobra cams.....numbers with new cams coming soon!

03-07-2010, 08:53 PM	#4
BluBlurr32V Bro's B4 Ho's Join Date: Jul 2007 Location: sunny,ca Posts: 615	Re: Need help choosing a t-body!!!!! I agree with Jarome. I have an Accufab and its coming off. I've done everything to fix the idle issue and it still remains. Besides there are no gains other that a stiffer pedal feel. That's about the only thing I will miss. __________________ 2003 Mach 1 IUP Azure Blue DOB: 7/28/03 Magnapack Cat-back, Bassani Catted X-pipe, C&L intake, MGW shifter, MM FLSC, MM Alum steering rack bushings, MM S/S brake lines, MM C/C plates, MM Panhard Bar, H&R Race springs, Blistein HD's, Steeda 2pt STB, Moser 31-spline axles, and S197 posi

03-07-2010, 09:16 PM	#5
The AntiRice Registered User Join Date: May 2008 Location: Ft. Lewis, WA Posts: 478	Re: Need help choosing a t-body!!!!! yup i had problems with my accufab too. tried everything from having my tuner play with a few things iirc dashpot decay rate or something like that and i even tried about 20 different iac restricters with as many different hole sizes and combinations as i could come up with. tried playing with the tps sensor and still nothin. ended up selling it at a lose. __________________ Build Thread http://www.svtperformance.com/forums...read-pics.html

03-08-2010, 12:09 AM	#6
Lonestar7 Guest Join Date: Apr 2007 Location: Denver, CO Posts: 3,152	Re: Need help choosing a t-body!!!!! I have the AccuFab works like a charm and no problems with it. You get what you pay for and AccuFab rocks! LS

03-08-2010, 07:17 AM	#7
Mudd92 03 Mach Join Date: Jan 2009 Location: Savannah, GA Posts: 1,396	Re: Need help choosing a t-body!!!!! ive got an accufab that came on the car when i bought it, but its great no issues. OCCASIONALY the throttle will stay around 1100 or so but i just tap the gas a little and its back to normal. Really has depended on the weather. __________________ -03 AB Mach 5spd Accufab TB, BBK LT's, BBK O/R X, Mac Catback, JLT RAI, 98 Cobra intake cams, EBC redstuff pads, slotted drilled rotors, 31 spline mosers, 31 spline cobra posi, 3" studs, FRPP 3:73, welded tubes, smoked tails. Eaton swap! 465hp,425tq @ 15deg and 3.4pulley @ 10lb. T56 magnum! - Tuned by Eric Brooks! Built motor coming soon -95 Chevy C1500 5.7 auto Stock, tow rig and DD. -Joey

03-08-2010, 11:01 AM	#9
JeromeMach1 Registered User Join Date: Aug 2003 Location: Simi Valley, CA Posts: 1,383	Re: Need help choosing a t-body!!!!! Let's put quality asside. Why spend $350 on something that offers a more desirable pedal feel but no hp/tq gains? Jerome

03-08-2010, 03:51 PM	#11
SHAKEN Registered User Join Date: Oct 2003 Location: Dearborn Heights Michigan Posts: 794	Re: Need help choosing a t-body!!!!! I bought mine for $230.00 from a local Reg member. Installed it and noticed a improved throttle response with no idle issues. Which would you rather have?. __________________ Accufab 60 mm twin Throttle body (Thanks Wutang) Predator Custom Tune +.5 lean,+.5 lean 2k up 4k up LC1 w/Ometer display 12.9- 12.7 AFR 2k-7k Mach 1 Floormats Roy Spacer IAC plate MGW Mach 1 License plate frame NGK TR55IX Iridium Bassini o/r X (Thanks cmylxgo) SteedaTri-ax 2.5" Stainless Pypes flowtubes 2.5x2.25 delta 40's Stainless 3 disk Car Chemistry inserts Factory tails quiet at idle and LOUD on the gas

03-09-2010, 08:08 AM	#14
j rick kirby Registered User Join Date: Aug 2004 Location: Winston-Salem,NC Posts: 1,802	Re: Need help choosing a t-body!!!!! I had a BBK on a T-Bird SC a few years ago that did the same binding.It turns out there is a screw on the TB that prevents that then the IAC compensates to put the idle where it belongs.Sure was an easy fix and I felt more stupid than usual. __________________ 2003 Azure mach1 5 speed with IUP Maximum Motorsports R&T Box with Torque Arm and lots of other bits and pieces here and there 2012 Candy Red Metalic Premium GT with Brembo/Trak Pak and 373s HPDE Instructor

03-09-2010, 11:19 AM	#15
na svt Registered User Join Date: Dec 2007 Location: beavercreek, oh Posts: 4,695	Re: Need help choosing a t-body!!!!! Stock. $300-$400 for a mod that provides no hp gain is a waste IMHO.

03-09-2010, 12:08 PM	#16
The AntiRice Registered User Join Date: May 2008 Location: Ft. Lewis, WA Posts: 478	Re: Need help choosing a t-body!!!!! when i had mine in for all of like 3 days i loved the throttle response but other than that it really wasnt worth the headaches it brought with it. __________________ Build Thread http://www.svtperformance.com/forums...read-pics.html

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