Welcome to Mustang Evolution.
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02-05-2006, 02:51 AM
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#1
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Question about throttle body sizes
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Registered User
Join Date: Jan 2006
State: Canada
Posts: 7
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I want to replace my stock tb and my question is how large can i go with out having to change my 19lb injectors? I heard from others but im not sure of their answers. Im thinking like a 65mm or 70mm.
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02-05-2006, 09:39 AM
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#2
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Re: Question about throttle body sizes
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Mustang Evo NEWB
Join Date: Aug 2004
City: millville
State: New Jersey
Posts: 4,935
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what modifications do you have done to your car? anything that would really support the larger injectors? have anything planned for the future? 65 MM should be fine for your stock injectors while still improving airflow, but if you plan to seriously upgrade in the future you could aim for larger.. just remember new injectors require a mass air calibrated to the injectors.
__________________
1992 Mustang LX hatchback.. 1 of 542 black on black
2003 Regal GS - the beater/daily driver - somewhat stock. No its not a mustang, at least it's blown.
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02-05-2006, 09:47 AM
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#3
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Re: Question about throttle body sizes
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Banned
Join Date: Jun 2003
City: Severn, MD
State: Maryland
Posts: 3,920
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is your car MAF or speed density? |
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02-05-2006, 11:09 AM
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#4
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Re: Question about throttle body sizes
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Taking life one day at a time
Join Date: May 2003
City: Simpsonville
State: South Carolina
Posts: 10,970
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On a stock 5.0 I would get a 65mm. The 70mm would only be if you had aftermarket heads and cam.
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02-05-2006, 03:34 PM
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#5
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Re: Question about throttle body sizes
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Registered User
Join Date: Jan 2006
State: Canada
Posts: 7
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Nothing major, just a mass air meter and K&N filter.I plan to get a new intake,cam, and heads, but not in the near future. Ya i know about the calibrating for the mass air.
MAF
I was leaning towards the 65mm. Would a 70mm just be a waste on my current setup? Pretty much stock expect for C&L 76mm mass air meter calibrated for my 19lb injectors and their "truefow" intake pipe, aswell as a K&N filter. |
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02-05-2006, 03:36 PM
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#6
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Re: Question about throttle body sizes
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Mustang Evo NEWB
Join Date: Aug 2004
City: millville
State: New Jersey
Posts: 4,935
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yeah, 65 mm throttle body won't hurt anything, you won't notice too much gain however, perhaps increased throttle response
__________________
1992 Mustang LX hatchback.. 1 of 542 black on black
2003 Regal GS - the beater/daily driver - somewhat stock. No its not a mustang, at least it's blown.
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02-26-2006, 03:09 AM
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#7
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Re: Question about throttle body sizes
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Registered User
Join Date: Apr 2005
City: Florence, AL
State: Alabama
Posts: 82
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IMO not worth it at this stage of the game put it towards gears or a shifter youll love those.
__________________
http://www.mustangevolution.com/gallery/data/502/1.jpg1995 GT- GT40 iron heads, 1.72 cobra roller rockers, FMS shorty headers, flows welded in, bbk o/r h, bbk UDP, steeda tri ax, timing advanced to 13, CAI, 75mm granatelli MAF, Eddy performer intake, 17x9 chrome cobra r's, mach 1 chin spoiler
for pics of my car go here--> car pics
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02-27-2006, 03:07 PM
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#8
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Re: Question about throttle body sizes
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You want to **** me?
Join Date: Jun 2003
City: Kansas City
State: Missouri
Posts: 12,414
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I have a 70mm, but my car has mild motor mods...
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-Mike
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02-27-2006, 04:37 PM
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#9
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Re: Question about throttle body sizes
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WTF^^...
Join Date: May 2003
City: Hoover / Florence
State: Alabama
Posts: 27,243
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go Pro-M NOT C&L ask bbunt302 about C&L vs Pro-M 
it sucks to cus C&L is local to me lol
__________________
2003 REDFIRE COBRA #3938 of 5082 @ 05/27/2003 1 of 414
MGW Shifter, Stingers, JLT, SS Inserts, MM FLSFC & CC Plates, SS Lines, H&R Race springs, IRS Brace, MRT Hood Struts
ME.com Member #29 - 400rwhp/380rwtq
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02-27-2006, 05:13 PM
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#10
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Re: Question about throttle body sizes
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Taking life one day at a time
Join Date: May 2003
City: Simpsonville
State: South Carolina
Posts: 10,970
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I believe he said he already had a C&L if you read his above post closer!!!!
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02-27-2006, 05:22 PM
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#11
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Re: Question about throttle body sizes
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Bob is Good.
Join Date: Jun 2004
City: Greenville
State: Texas
Posts: 5,208
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Plus Pro-M is now out of business. 
I believe someone has taken over there operations though (not sure who). Still, it's sad that a company with products like C&L can stay afloat while a place like Pro-M sinks.
Anyway, don't go bigger than a 65mm w/ the stock intake. Also like Matt said, you may want to put off the TB for now and look at more effective mods like gears, shifter, U/D pullies, etc. With stock H/C/I, you are going to see very little added power from a TB, perhaps a slightly better throttle response.
Last edited by bbunt302; 02-27-2006 at 05:32 PM.
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