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Old 01-30-2008   #1 (permalink)
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Default Throttle response!!! 2007 Mustang GT

What can i do to improve my throttle response
07 G.T Manual
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Old 01-30-2008   #2 (permalink)
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A tune really helps with throttle response. I'm pretty sure some gears would help as well.
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Old 01-30-2008   #3 (permalink)
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I have 4:10 gears but havent installed them...
Im afraid my Stang wont be a good daily driver anymore, what do you think??
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Old 01-31-2008   #4 (permalink)
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you'll be fine, they don't mess with city driving that much, but highway driving, dont ask
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Old 01-31-2008   #5 (permalink)
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I get 18.4 mpg driving back and forth to work (no highway) with my 4.10s intake and tune, though i drive like an old lady and shift at like 1.5k
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Old 01-31-2008   #6 (permalink)
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Quote:
Originally Posted by Stanger78 View Post
What can i do to improve my throttle response
07 G.T Manual
I installed a C&L CAI and brenspeed tune. It made a big difference.
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Old 01-31-2008   #7 (permalink)
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Quote:
Originally Posted by Stanger78 View Post
I have 4:10 gears but havent installed them...
Im afraid my Stang wont be a good daily driver anymore, what do you think??
They're fine city or hwy. Only adds a couple hundred rpms. Probably will lose 2mpg.
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Old 01-31-2008   #8 (permalink)
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I know what you are talking about. The RPM don't come down fast enough when you shift gears. When depressing the clutch the engine keeps up the RPM for another second before dying down the way it should.
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Old 01-31-2008   #9 (permalink)
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Quote:
Originally Posted by Taxpayer View Post
I know what you are talking about. The RPM don't come down fast enough when you shift gears. When depressing the clutch the engine keeps up the RPM for another second before dying down the way it should.
I realize that it's annoying but it's designed that way to prevent stress on the drivetrain. There are a couple of dashpot settings that can reduce (not eliminate) it. You can't get rid of it entirely or you end up with engine failsafe problems.
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Old 01-31-2008   #10 (permalink)
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Hey Mark with all the engine work you did, you still have that program in your car ? Just wondering.
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Old 01-31-2008   #11 (permalink)
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Quote:
Originally Posted by Mick View Post
Hey Mark with all the engine work you did, you still have that program in your car ? Just wondering.
Through repeated dyno tunes, most of my throttle lag has been programmed out. I have enough just so I stay out of failsafe mode.
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Old 01-31-2008   #12 (permalink)
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Well a valid explanation helps to eliminate most of the frustration...
Thanks stlwagon!!
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Old 01-31-2008   #13 (permalink)
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My first tune from Tillman Speed took care of any lag and the rpm drops back down as it should. Give them a try.
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Old 01-31-2008   #14 (permalink)
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Ok, I may be hijacking, but can someone explain exactly what is throttle response? I press the gas, the car goes. It seems like some people are getting a delay in between the time their foot hits the accelerator and the time that the car actually goes. If I look at my pedal too hard, the car will move. It also seems that a tune will eliminate this problem as well. Both the Brenspeed and Bamachips tunes make the pedal extremely testy. I have to really ease on the gas at a light to keep from taking off like a rocket.

So am I on the right track with what I'm saying? I'm just looking for clarification to see if I have an actual problem.
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Old 01-31-2008   #15 (permalink)
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There is throttle lag and throttle delay (or response). Throttle lag is the time it takes for the revs to fall when you lift your foot to shift. Throttle delay is that little bit of deadspace when you touch the gas. Most of these cars have a good 1/2" of pedal slack before the pedal actually senses it.
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