Throttle body question? - 2003-04 Mach 1 Registry Owners Club

YELLOW4.6DOHC · 09-13-2013, 10:21 AM

How is the size of a throttle body determined by the ID or OD of the throttle body. Have an 03 mach and looking into the TB and not sure how it is measured. Also have read that the bbk TB are junk, does anyone have any to suggest. Thanks

DSG2003Mach1 · 09-13-2013, 10:26 AM

leave the stock TB on there, the aftermarket ones for us are a giant pain in the *** and the gains are minimal.

mach18604 · 09-13-2013, 10:47 AM

Quote:

Originally Posted by DSG2003Mach1

leave the stock TB on there, the aftermarket ones for us are a giant pain in the *** and the gains are minimal.

I have heard the same also

st0ck Mach 1 · 09-13-2013, 11:07 AM

the stocker is good to 400rwhp or 7000rpm. Aftermarket is absolutely not worth the minimal gain vs headache. Now if you have big cams, ported heads, headers, sully or short runner...its your call! I was around 425rwhp and solid 10.8s with the stocker and no driveability issues whatsoever! Just my .02

DSG2003Mach1 · 09-13-2013, 11:13 AM

Quote:

Originally Posted by st0ck Mach 1

the stocker is good to 400rwhp or 7000rpm. Aftermarket is absolutely not worth the minimal gain vs headache. Now if you have big cams, ported heads, headers, sully or short runner...its your call! I was around 425rwhp and solid 10.8s with the stocker and no driveability issues whatsoever! Just my .02

according to NASVT and a couple others, even well over 400hp the gains are minimal. I had a car with an accufab on it and it sucked, made the gas pedal have a very heavy feel, never could get it to idle right etc...

not a gt · 09-13-2013, 11:27 AM

How much boost/rwhp are you good to with the stocker?? You KNOW why I am asking, you all are killing my brain DSG

DSG2003Mach1 · 09-13-2013, 11:43 AM

Quote:

Originally Posted by not a gt

How much boost/rwhp are you good to with the stocker?? You KNOW why I am asking, you all are killing my brain DSG

Im hoping to make ~600 on 93 and more on E85, Im still running the stock piece and dont expect it to be an issue. The throttle body issue isnt as big of a deal with centrifugal blowers, positive displacement blowers seem to be far more effected by inlet restrictions

OWmach1 · 09-14-2013, 03:12 PM

Sorry not trying to jack a thread, but I also don't want to start a new one for one question.. but with if the OD was tapered.. would that help with any gains?

09-13-2013, 10:21 AM	#1
YELLOW4.6DOHC YELLOW JACKET Join Date: Sep 2012 Location: naples,fl Posts: 80	Throttle body question? How is the size of a throttle body determined by the ID or OD of the throttle body. Have an 03 mach and looking into the TB and not sure how it is measured. Also have read that the bbk TB are junk, does anyone have any to suggest. Thanks

09-13-2013, 10:26 AM	#2
DSG2003Mach1 700 HP Mach Join Date: Nov 2003 Location: Orlando, FL Posts: 8,384	Re: Throttle body question? leave the stock TB on there, the aftermarket ones for us are a giant pain in the *** and the gains are minimal. __________________ 03 dsg mach1 - MPR built 9.5:1 motor, D1, cams, ported intake, full exhaust, magnum t56, built rear, E85 etc... '12 F150 FX2 Supercrew with Ecoboost daily beater

09-13-2013, 11:07 AM	#4
st0ck Mach 1 not for long Join Date: Aug 2008 Location: santa rosa beach fl Posts: 830	Re: Throttle body question? the stocker is good to 400rwhp or 7000rpm. Aftermarket is absolutely not worth the minimal gain vs headache. Now if you have big cams, ported heads, headers, sully or short runner...its your call! I was around 425rwhp and solid 10.8s with the stocker and no driveability issues whatsoever! Just my .02 __________________ BB/S 324 kooks sully accufab cams heads valves bs3 ls1coils sully rails aeromotive regulator Weldon pump 8gal cell batt in trunk tko500(faceplated) spool upr k foxbody spindles metco upper an lowers 502rwhp.

09-13-2013, 11:27 AM	#6
not a gt Registered User Join Date: Mar 2007 Location: Waaayy out in the country,leave your GPS at home! Posts: 4,825	Re: Throttle body question? How much boost/rwhp are you good to with the stocker?? You KNOW why I am asking, you all are killing my brain DSG __________________ 2003 DSG Mach 1-03 Cobra Term/T56 swap: 2.3L Whipple,3.37 Upper,4 lb.lower, ID 1000 injectors,LCD cooling mod,Billetflow idlers,200A Alt,oil cooler delete with MMR adapter plate,MM oil filter kit,FrozenBoost Heat Exchanger Flowtech L.T., Maganaflow O/R X with Magnapacks, FRRP D.S.,T-56 with 26 spline input shaft and anti venom mod with reverse lockout box, FR steel flywheel,Spec Stage 3+,Moser 31 spline axles,FR 3.73 gear Tuned by B.Kurgan 601Hp/558/Tq

09-14-2013, 03:12 PM	#8
OWmach1 Registered User Join Date: Aug 2012 Location: CA Posts: 452	Re: Throttle body question? Sorry not trying to jack a thread, but I also don't want to start a new one for one question.. but with if the OD was tapered.. would that help with any gains?

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