GT S197 General Discussion This section is for technical discussions pertaining specifically to the V8 variation of the 2005 and newer Ford Mustang.

Throttle Response.

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Old Aug 19, 2005 | 02:03 PM
  #1  
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Default Throttle Response.

OK.. help me understand.. becuase neither of the websites truly states that the XCal or the Pred can "set" the throttle response time.

Is Improved TR just an accident of the retune, or is it an actual setting - delay type thing?

Since I don't race my car - I am not all THAT interested in upping the HP.. however the Throttle delay drives me NUTS and I will probably buy a Preditor JUST to get rid of that.

those of you who have tuned... help me out.. Is there a setting that controls the delay, or is it just an accidental outcome of the tune that the throttle responds faster - and / or is there is still a delay of response, just not as bad as with a stock tune?
Old Aug 19, 2005 | 02:36 PM
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Default RE: Throttle Response.

There's a fair amount of discussion here that may help. It's in the context of tuning an SC'd car, but should answer your question.
Old Aug 19, 2005 | 03:11 PM
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Default RE: Throttle Response.


ORIGINAL: delurker

There's a fair amount of discussion here that may help. It's in the context of tuning an SC'd car, but should answer your question.
ok, for 30sec attention span types like me, what's the verdict? is throttle response specifically tweaked or is it a lucky coincidence of tuning?

that link is just *WAY* more than i ever wanted to know about tuning
Old Aug 19, 2005 | 03:46 PM
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Default RE: Throttle Response.

On the predator tuner there is no specific tune just for the throttle respnse problem but once the tune is installed it seems to get rid of the problem. The car also runs alot better, you'll be real happy with the results.
Old Aug 19, 2005 | 04:13 PM
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Default RE: Throttle Response.

Thanks for the link Delurker...

I read it.. and read.. and read... and read...

Although there is a LOT about tuning and TBW, it really didn't cover the specifics of the delay between when you push on the peddle and the car reacts - - - I did find that the Decelation pause is actually controlled by a table... so I assume the acceleration pause is also controlled by a table...

However... I have been reading other posts and it seems that the "Pause" is an accidential outcome of the tune. and it really doesn't go away, but rather most people feel it is "Better".

Another question is WHY is there a pause in the first place. Is it giving the computer time to compute? Is it there for Air polution?

I liked throttle by cable better! You mash.. it goes... LOL... you let up your foot and it backs off.. instantly.

I want my car to react the same way my 69 Torino Cobra GT's 429CJ did.

It was FUN just sitting at a stop light and just a light tap on the peddle in netural would make the engine JUMP..
Old Aug 19, 2005 | 07:14 PM
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Default RE: Throttle Response.

The improved throttle response is from a combination of things. The biggest factor with a tune and throttle response, is that the tune will ask for more torque at various RPM's. This seems to make throttle response better...and believe me, it is. There is no magic to it.
Old Aug 19, 2005 | 07:26 PM
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Default RE: Throttle Response.

ORIGINAL: Professor Wizard

Thanks for the link Delurker...

I read it.. and read.. and read... and read...

Although there is a LOT about tuning and TBW, it really didn't cover the specifics of the delay between when you push on the peddle and the car reacts - - - I did find that the Decelation pause is actually controlled by a table... so I assume the acceleration pause is also controlled by a table...

However... I have been reading other posts and it seems that the "Pause" is an accidential outcome of the tune. and it really doesn't go away, but rather most people feel it is "Better".

Another question is WHY is there a pause in the first place. Is it giving the computer time to compute? Is it there for Air polution?

I liked throttle by cable better! You mash.. it goes... LOL... you let up your foot and it backs off.. instantly.

I want my car to react the same way my 69 Torino Cobra GT's 429CJ did.

It was FUN just sitting at a stop light and just a light tap on the peddle in netural would make the engine JUMP..
Heh, I'm one of those guys who prefers too much info over too little, but I can see your point.

The simple answer is that tuning can eliminate the delay. I believe that Ford put the delay in there to reduce the number of accidents and lawsuits by less than excellent drivers who might hurt themselves through poor throttle control. A tune has helped to reduce the lag in my case, and a dual 60mm throttle body seemed to eliminate the rest of it. My car is getting some installation and head work done currently (and a custom tune), and I expect that the tuner will be able to make the throttle delay a distant memory.

bbblacksheep is correct in that there is no magic. Once one knows all the variables, it's fairly simple math.
Old Aug 21, 2005 | 06:41 PM
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Default RE: Throttle Response.

I do know that the SCT / SCT 2 will not remove the throttle delay. I understand that it takes a tuner with the full factory package (Software) in order rto adjust the ETC parameters. Doug at Bamachips did mine and there si no delay when slammin the pedal. Also, he removed the 7 second delay when getting off the pedal as well.
Old Aug 22, 2005 | 08:11 AM
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Default RE: Throttle Response.

I would like to understand this better. Does the V6 have this dealy? Does the V8 only have it when being pushed hard or all the time? Thanks for taking the time to explain this to me.
Old Aug 22, 2005 | 12:08 PM
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Default RE: Throttle Response.

Wizard: I have the Predator. I love it. You will too. Nuff said. =)

JerryP: The V6 and the V8 both suffer from throttle response problems. This stems from the new electronic throttle, or "throttle by wire" that was installed in all of our new '05 and '06 'Stangs. This electronic throttle control means that there is no actual linkage between the pedal and the engine, it is all computer controlled. A sensor on your pedal reads its position and adjusts your throttle accordingly. This is supposed to improve fuel mileage and isolate the driver from the vibration of the engine. In reality, it simply annoys me and causes a decrease in driveability.



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