throttle body

white94svt · August 2nd, 2009, 10:44 PM

any thoughts on throttle body upgrades? Im going from a stock 94 cobra to i think I may just go with a bbk 70mm. not a bad price, will i notice a difference mainly in the higher rpm range? my car feels like its running out of steam around 5100 rpms

Bullitt95 · August 3rd, 2009, 08:04 AM

A throttle body will make very little difference at this stage. I think you'd be much better off doing headers/midpipe/catbacks first.

white94svt · August 3rd, 2009, 08:12 PM

yeah i have the stock headers, o/r x pipe and flowmaster catback , Mac cai, mac underdrive pulleys, ffrp al.ds, 9mm wires, msd coil, king cobra clutch etc. it feels nice, but will be alot better when i put in those 410's. will i notice the throttle body after these mods? I also got a chiptune not too long ago to correct some timing issues so will that be affected with the tb?

95BlackStang · August 3rd, 2009, 08:13 PM

you wont feel much from it, mosty quicker throttle response

WildWill · August 5th, 2009, 11:14 AM

You really won't gain much from a t/b upgrade. I would look at putting your money elsewhere - like towards getting your intake ported or a new set of headers.

Bullitt95 · August 5th, 2009, 01:42 PM

Originally Posted by white94svt

Im going from a stock 94 cobra

yeah i have the stock headers, o/r x pipe and flowmaster catback , Mac cai, mac underdrive pulleys, ffrp al.ds, 9mm wires, msd coil, king cobra clutch etc.

That's far from stock!

Chris951 · August 6th, 2009, 01:46 PM

You'll notice better throttle response and a little more power up top and less down low. I could tell a little difference on my 88

Bullitt95 · August 6th, 2009, 04:35 PM

I went with a Summit Racing 75mm TB ($160) more than 2 years ago when my 5.0 only had a C&L 76mm CAI/MAF kit, hollowed out cats, and straight-through mufflers as mods at the time. Throttle response was noticeably improved and there was no loss of low rev torque. I'd also ported the upper intake manifold opening to the same 75mm size.
Don't believe anyone who tells you that a 75mm TB is too big for a near stock 5.0. It isn't. It's just simply more than you need but it allows room to grow if you do H/C/I mods later on.

roast&toastEM · August 22nd, 2009, 10:54 AM

^thats good to know cause im just finishing on my body work on my stock 94 and was looking to start somewhere on my car and a tb was one spot that came to mind (isnt too expensive and goes with the cold air) and was told that was only good for superchargers

WildWill · August 22nd, 2009, 05:34 PM

i really wouldnt say there is a "good place to start" with modding 5.0 mustangs. You really wont "notice" great improvements until you start doing lots of things (one mod supports the others). The best way to start is from the ass-forward. Do gears, then suspension, then brakes, then fuel upgrades, then start tackling your engine.

Chris951 · August 22nd, 2009, 11:14 PM

Originally Posted by Bullitt95

I also ported the upper intake manifold opening to the same 75mm size.

That's mostly why you didn't notice much loss. If you put that 75mm on a STOCK mani it will suck. My car has a 70mm with 4.10 gears and low end really sucks until 3.5k then it rocket's. Feels like turbo lag

roast&toastEM · August 23rd, 2009, 03:20 AM

alright thanks, thats helps alot. i was gunna start with gears just because i needed to replace my axlecover anyways. but i didnt know too much to proceed to. this car is going to be one of my first real learning project cars and i appreciate all the help and opinions.

Bullitt95 · August 23rd, 2009, 03:21 AM

Originally Posted by Chris951

That's mostly why you didn't notice much loss. If you put that 75mm on a STOCK mani it will suck.

You're probably right. The stock intake manifold opening is less than 70mm so a 75mm TB would leave a step that'll cause turbulence and a loss of flow velocity. You definitely need to port the intake to remove that step and just leave a gentle taper.

Chris951 · August 23rd, 2009, 04:33 PM

Originally Posted by Bullitt95

You're probably right. The stock intake manifold opening is less than 70mm so a 75mm TB would leave a step that'll cause turbulence and a loss of flow velocity. You definitely need to port the intake to remove that step and just leave a gentle taper.

Exactly

wxexs92 · April 11th, 2011, 02:39 PM

how much does it normally cost to have it ported?

tranram · April 11th, 2011, 11:57 PM

if you can wait save and put a complete upper and lower intake,then heads and a cam,that will free up the top speed,or lack of steam at 5000rpms

tranram · April 12th, 2011, 12:01 AM

4 1 0 s

Bullitt95 · April 12th, 2011, 12:57 PM

Originally Posted by tranram

if you can wait save and put a complete upper and lower intake,then heads and a cam,that will free up the top speed,or lack of steam at 5000rpms

x2

Originally Posted by tranram

4 1 0 s

Agree with doing gears as one of the first mods but whether 4.10s will be the right ones depends on what the rest of the performance set-up is going to be.

TOOtall20 · April 16th, 2011, 03:51 AM

Originally Posted by wxexs92

how much does it normally cost to have it ported?

To port match a throttle body I couldn't imagine much but if you have a die grinder you can DIY easily.

Port matching is the most important part of TB replacement without it you might as well left the smaller TB on because thats the size of the hole the only thing you would add by a big TB with no match is turbulence and a loss in velocity

But I'd definitely go headers first and get into the TB after big mods like heads and cam

August 2nd, 2009, 10:44 PM	#1
white94svt Newbie 1994 Cobra Join Date: Aug 2009 Location: shirley, ny Posts: 4 iTrader: 0 reviews	throttle body any thoughts on throttle body upgrades? Im going from a stock 94 cobra to i think I may just go with a bbk 70mm. not a bad price, will i notice a difference mainly in the higher rpm range? my car feels like its running out of steam around 5100 rpms __________________ elizabeth

August 3rd, 2009, 08:04 AM	#2
Bullitt95 Hardcore Enthusiast 1995 Mustang GT auto 13.546 @ 105.32 Join Date: Apr 2007 Location: Al Ain, UAE Posts: 1,452 iTrader: 0 reviews	A throttle body will make very little difference at this stage. I think you'd be much better off doing headers/midpipe/catbacks first. __________________ 243.5rwhp/284.2rwtq Mod list in My Garage

August 3rd, 2009, 08:12 PM	#3
white94svt Newbie 1994 Cobra Join Date: Aug 2009 Location: shirley, ny Posts: 4 iTrader: 0 reviews	yeah i have the stock headers, o/r x pipe and flowmaster catback , Mac cai, mac underdrive pulleys, ffrp al.ds, 9mm wires, msd coil, king cobra clutch etc. it feels nice, but will be alot better when i put in those 410's. will i notice the throttle body after these mods? I also got a chiptune not too long ago to correct some timing issues so will that be affected with the tb? __________________ elizabeth

August 5th, 2009, 11:14 AM	#5
WildWill Hardcore Enthusiast 1995 Mustang GT Join Date: Oct 2007 Location: Solomons, MD Posts: 1,112 iTrader: 0 reviews	You really won't gain much from a t/b upgrade. I would look at putting your money elsewhere - like towards getting your intake ported or a new set of headers. __________________ GT40p heads, 1.7 crane RR's, GT40 u/l, MAC LTs, MAC o/r h-pipe, Flowmaster 40s, 65mm t/b, '03 Cobra Bilstein Struts, Tokico Bullitt Shocks, MM c/c plates, Eibach Sportlines, B&M shifter, 255lph f/p, RAM p/g clutch, Fidanza alum fly, rebuilt t-5

August 6th, 2009, 04:35 PM	#8
Bullitt95 Hardcore Enthusiast 1995 Mustang GT auto 13.546 @ 105.32 Join Date: Apr 2007 Location: Al Ain, UAE Posts: 1,452 iTrader: 0 reviews	I went with a Summit Racing 75mm TB ($160) more than 2 years ago when my 5.0 only had a C&L 76mm CAI/MAF kit, hollowed out cats, and straight-through mufflers as mods at the time. Throttle response was noticeably improved and there was no loss of low rev torque. I'd also ported the upper intake manifold opening to the same 75mm size. Don't believe anyone who tells you that a 75mm TB is too big for a near stock 5.0. It isn't. It's just simply more than you need but it allows room to grow if you do H/C/I mods later on. __________________ 243.5rwhp/284.2rwtq Mod list in My Garage

August 6th, 2009, 01:46 PM	#7
Chris951 Hardcore Enthusiast 1991 mustang 5.0 Join Date: Aug 2007 Location: Mesa, AZ Posts: 1,938 iTrader: 0 reviews	You'll notice better throttle response and a little more power up top and less down low. I could tell a little difference on my 88

August 22nd, 2009, 10:54 AM	#9
roast&toastEM Regular 1994 Mustang GT Join Date: Jul 2009 Location: Lincoln, Ne Posts: 288 iTrader: 2 reviews	^thats good to know cause im just finishing on my body work on my stock 94 and was looking to start somewhere on my car and a tb was one spot that came to mind (isnt too expensive and goes with the cold air) and was told that was only good for superchargers __________________ 1994 Mustang 5.0

August 22nd, 2009, 05:34 PM	#10
WildWill Hardcore Enthusiast 1995 Mustang GT Join Date: Oct 2007 Location: Solomons, MD Posts: 1,112 iTrader: 0 reviews	i really wouldnt say there is a "good place to start" with modding 5.0 mustangs. You really wont "notice" great improvements until you start doing lots of things (one mod supports the others). The best way to start is from the ass-forward. Do gears, then suspension, then brakes, then fuel upgrades, then start tackling your engine. __________________ GT40p heads, 1.7 crane RR's, GT40 u/l, MAC LTs, MAC o/r h-pipe, Flowmaster 40s, 65mm t/b, '03 Cobra Bilstein Struts, Tokico Bullitt Shocks, MM c/c plates, Eibach Sportlines, B&M shifter, 255lph f/p, RAM p/g clutch, Fidanza alum fly, rebuilt t-5

August 23rd, 2009, 03:20 AM	#12
roast&toastEM Regular 1994 Mustang GT Join Date: Jul 2009 Location: Lincoln, Ne Posts: 288 iTrader: 2 reviews	alright thanks, thats helps alot. i was gunna start with gears just because i needed to replace my axlecover anyways. but i didnt know too much to proceed to. this car is going to be one of my first real learning project cars and i appreciate all the help and opinions. __________________ 1994 Mustang 5.0

April 11th, 2011, 02:39 PM	#15
wxexs92 Newbie 1994 mustang cobra Join Date: Jun 2010 Posts: 19 iTrader: 0 reviews	how much does it normally cost to have it ported?

April 11th, 2011, 11:57 PM	#16
tranram Regular 94 5.0 302 gt in the making Join Date: Dec 2010 Location: HOME OF BILL CLINTON Posts: 89 iTrader: 0 reviews	if you can wait save and put a complete upper and lower intake,then heads and a cam,that will free up the top speed,or lack of steam at 5000rpms __________________ performer heads 2.02 values,prw stainless roller rockers,hardend push rods, trickflow upper,lower.lunati cam 24lb injectors,75mm tb, shorty's 2.5 pipe,h pipe, into 1 chamber 40 series flowmasters, aode,410s 18inch GT500 wheels,saleen body kit

April 12th, 2011, 12:01 AM	#17
tranram Regular 94 5.0 302 gt in the making Join Date: Dec 2010 Location: HOME OF BILL CLINTON Posts: 89 iTrader: 0 reviews	4 1 0 s __________________ performer heads 2.02 values,prw stainless roller rockers,hardend push rods, trickflow upper,lower.lunati cam 24lb injectors,75mm tb, shorty's 2.5 pipe,h pipe, into 1 chamber 40 series flowmasters, aode,410s 18inch GT500 wheels,saleen body kit

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