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DIY THROTTLE RESPONSE MOD (MUST SEE!)
08-31-2007, 10:27 AM
#71
5th Gear Member
Join Date: Aug 2006
Location: Cumming, GA
Posts: 2,460
RE: DIY THROTTLE RESPONSE MOD (MUST SEE!)
Anyone have any Ford documentation describing how this switch operates and how to test it ... this should show voltage #'s in correlation to throttle movement.
As far as ECU reset with every start... so you are saying that if I start the car with the throttle depressed 1/2 way down ... The ECU will adjust this to be closed throttle (idle)? Then when I let off the pedal I assume car will stall because it will go negative throttle?
As far as ECU reset with every start... so you are saying that if I start the car with the throttle depressed 1/2 way down ... The ECU will adjust this to be closed throttle (idle)? Then when I let off the pedal I assume car will stall because it will go negative throttle?
08-31-2007, 10:30 AM
#72
I ♥ Acer
Join Date: Mar 2005
Location: Boston, MA
Posts: 614
RE: DIY THROTTLE RESPONSE MOD (MUST SEE!)
ORIGINAL: dmhines
As far as ECU reset with every start... so you are saying that if I start the car with the throttle depressed 1/2 way down ... The ECU will adjust this to be closed throttle (idle)? Then when I let off the pedal I assume car will stall because it will go negative throttle?
As far as ECU reset with every start... so you are saying that if I start the car with the throttle depressed 1/2 way down ... The ECU will adjust this to be closed throttle (idle)? Then when I let off the pedal I assume car will stall because it will go negative throttle?
08-31-2007, 10:30 AM
#73
1st Gear Member
Join Date: Nov 2006
Posts: 115
RE: DIY THROTTLE RESPONSE MOD (MUST SEE!)
ORIGINAL: GidyupGo
My neighbor came home fromNamand bought a 69 corvette w/ a 427. Wrecked it. Then bought a 1970 Chevelle, SS454 and wrecked it. Just kept sliding off the road with them.
Could very well be. I know that after Vietnam, our boys came home with a pocket full of money (maybe not a pocket full) and bought Bosses and GT's and Mach's. Many ended up in the ditch dead. Something the Gooks couldn't do. It was determined that they were not used to driving beasts and couldn't handle them.
ORIGINAL: wingman75
Well I have to disagree about what some are saying. After my custom dyno tune my car is so responsive it wants to leap forward instantly when I touch the gas pedal. I have to be more aware in traffic so I don't rear-end a slow poke taking off at a light. I think this might be why Ford set it up the way they did so that people with less driving skill do not get into trouble. I understand your take on the mechanical aspect but in my case the car has become very responsive. It may be that there are variations in every car as these fine adjustments can create wide spread variations in performance.
Well I have to disagree about what some are saying. After my custom dyno tune my car is so responsive it wants to leap forward instantly when I touch the gas pedal. I have to be more aware in traffic so I don't rear-end a slow poke taking off at a light. I think this might be why Ford set it up the way they did so that people with less driving skill do not get into trouble. I understand your take on the mechanical aspect but in my case the car has become very responsive. It may be that there are variations in every car as these fine adjustments can create wide spread variations in performance.
Could very well be. I know that after Vietnam, our boys came home with a pocket full of money (maybe not a pocket full) and bought Bosses and GT's and Mach's. Many ended up in the ditch dead. Something the Gooks couldn't do. It was determined that they were not used to driving beasts and couldn't handle them.
08-31-2007, 10:31 AM
#74
5th Gear Member
Join Date: Apr 2007
Location: The High Country
Posts: 3,547
RE: DIY THROTTLE RESPONSE MOD (MUST SEE!)
ORIGINAL: dmhines
Anyone have any Ford documentation describing how this switch operates and how to test it ... this should show voltage #'s in correlation to throttle movement.
As far as ECU reset with every start... so you are saying that if I start the car with the throttle depressed 1/2 way down ... The ECU will adjust this to be closed throttle (idle)? Then when I let off the pedal I assume car will stall because it will go negative throttle?
Anyone have any Ford documentation describing how this switch operates and how to test it ... this should show voltage #'s in correlation to throttle movement.
As far as ECU reset with every start... so you are saying that if I start the car with the throttle depressed 1/2 way down ... The ECU will adjust this to be closed throttle (idle)? Then when I let off the pedal I assume car will stall because it will go negative throttle?
Something to think about. Go try it and report back if you're not in an ambulance.
08-31-2007, 10:33 AM
#75
RE: DIY THROTTLE RESPONSE MOD (MUST SEE!)
ORIGINAL: wingman75
Well I have to disagree about what some are saying. After my custom dyno tune my car is so responsive it wants to leap forward instantly when I touch the gas pedal. I have to be more aware in traffic so I don't rear-end a slow poke taking off at a light. I think this might be why Ford set it up the way they did so that people with less driving skill do not get into trouble. I understand your take on the mechanical aspect but in my case the car has become very responsive. It may be that there are variations in every car as these fine adjustments can create wide spread variations in performance.
Well I have to disagree about what some are saying. After my custom dyno tune my car is so responsive it wants to leap forward instantly when I touch the gas pedal. I have to be more aware in traffic so I don't rear-end a slow poke taking off at a light. I think this might be why Ford set it up the way they did so that people with less driving skill do not get into trouble. I understand your take on the mechanical aspect but in my case the car has become very responsive. It may be that there are variations in every car as these fine adjustments can create wide spread variations in performance.
08-31-2007, 10:34 AM
#76
5th Gear Member
Join Date: Apr 2007
Location: The High Country
Posts: 3,547
RE: DIY THROTTLE RESPONSE MOD (MUST SEE!)
ORIGINAL: blueshawk
ORIGINAL: GidyupGo
My neighbor came home fromNamand bought a 69 corvette w/ a 427. Wrecked it. Then bought a 1970 Chevelle, SS454 and wrecked it. Just kept sliding off the road with them.
Could very well be. I know that after Vietnam, our boys came home with a pocket full of money (maybe not a pocket full) and bought Bosses and GT's and Mach's. Many ended up in the ditch dead. Something the Gooks couldn't do. It was determined that they were not used to driving beasts and couldn't handle them.
ORIGINAL: wingman75
Well I have to disagree about what some are saying. After my custom dyno tune my car is so responsive it wants to leap forward instantly when I touch the gas pedal. I have to be more aware in traffic so I don't rear-end a slow poke taking off at a light. I think this might be why Ford set it up the way they did so that people with less driving skill do not get into trouble. I understand your take on the mechanical aspect but in my case the car has become very responsive. It may be that there are variations in every car as these fine adjustments can create wide spread variations in performance.
Well I have to disagree about what some are saying. After my custom dyno tune my car is so responsive it wants to leap forward instantly when I touch the gas pedal. I have to be more aware in traffic so I don't rear-end a slow poke taking off at a light. I think this might be why Ford set it up the way they did so that people with less driving skill do not get into trouble. I understand your take on the mechanical aspect but in my case the car has become very responsive. It may be that there are variations in every car as these fine adjustments can create wide spread variations in performance.
Could very well be. I know that after Vietnam, our boys came home with a pocket full of money (maybe not a pocket full) and bought Bosses and GT's and Mach's. Many ended up in the ditch dead. Something the Gooks couldn't do. It was determined that they were not used to driving beasts and couldn't handle them.
I know. It got so bad that they took that blown stang on a tour of Nam to educate the boys on how to drive them. They even raced it down the flight deck of the MidwayI believe. That car sold on ebay a few years back. It was still a monster. They took 3 of em over there, but wrecked 2 of them. Helocoptor dropped one of them.
08-31-2007, 10:34 AM
#77
2nd Gear Member
Thread Starter
Join Date: Jul 2007
Location:
Posts: 227
RE: DIY THROTTLE RESPONSE MOD (MUST SEE!)
ORIGINAL: dmhines
Anyone have any Ford documentation describing how this switch operates and how to test it ... this should show voltage #'s in correlation to throttle movement.
As far as ECU reset with every start... so you are saying that if I start the car with the throttle depressed 1/2 way down ... The ECU will adjust this to be closed throttle (idle)? Then when I let off the pedal I assume car will stall because it will go negative throttle?
Anyone have any Ford documentation describing how this switch operates and how to test it ... this should show voltage #'s in correlation to throttle movement.
As far as ECU reset with every start... so you are saying that if I start the car with the throttle depressed 1/2 way down ... The ECU will adjust this to be closed throttle (idle)? Then when I let off the pedal I assume car will stall because it will go negative throttle?
Because we are making such small changes, the ECU can compensate for the small change in resistance.
This is why there are SIX tracks, so the ECU can compare all the outputs from the pads, and calibrate the pedal. It would work just as well to only have one carbon track and one brush.
Anyway, this physically removed all deadspace from my pedal, worked perfectly for me. I'll take a video when I get home of how sensitive it is.
08-31-2007, 10:37 AM
#78
5th Gear Member
Join Date: Apr 2007
Location: The High Country
Posts: 3,547
RE: DIY THROTTLE RESPONSE MOD (MUST SEE!)
ORIGINAL: tube
If you read what I said earlier, there is a LIMIT to how far it will calibrate. Just like with your car's fueling and O2 sensors, if the ECU sees the O2 sensor as reading lean, it will add more fuel UP TO A POINT. After that point, it will stop adding fuel, and throw a check engine light.
Because we are making such small changes, the ECU can compensate for the small change in resistance.
This is why there are SIX tracks, so the ECU can compare all the outputs from the pads, and calibrate the pedal. It would work just as well to only have one carbon track and one brush.
Anyway, this physically removed all deadspace from my pedal, worked perfectly for me. I'll take a video when I get home of how sensitive it is.
ORIGINAL: dmhines
Anyone have any Ford documentation describing how this switch operates and how to test it ... this should show voltage #'s in correlation to throttle movement.
As far as ECU reset with every start... so you are saying that if I start the car with the throttle depressed 1/2 way down ... The ECU will adjust this to be closed throttle (idle)? Then when I let off the pedal I assume car will stall because it will go negative throttle?
Anyone have any Ford documentation describing how this switch operates and how to test it ... this should show voltage #'s in correlation to throttle movement.
As far as ECU reset with every start... so you are saying that if I start the car with the throttle depressed 1/2 way down ... The ECU will adjust this to be closed throttle (idle)? Then when I let off the pedal I assume car will stall because it will go negative throttle?
Because we are making such small changes, the ECU can compensate for the small change in resistance.
This is why there are SIX tracks, so the ECU can compare all the outputs from the pads, and calibrate the pedal. It would work just as well to only have one carbon track and one brush.
Anyway, this physically removed all deadspace from my pedal, worked perfectly for me. I'll take a video when I get home of how sensitive it is.
Good answer.
08-31-2007, 11:01 AM
#80
2nd Gear Member
Thread Starter
Join Date: Jul 2007
Location:
Posts: 227
RE: DIY THROTTLE RESPONSE MOD (MUST SEE!)
Right, because those are the negatives, while the ones without gold underneath the entire thing are the actual resistors. There are really only THREE sets of resistors, as each one has a + and - connection. Truly you could just bend the brushes on the ones without gold underneath them and get the same effect, but you should do them all for consistency as you want them all to be at the same height so they rub the same.
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http://digg.com/motorsport/Improving...chanical_Means
Please DIGG my thread!
http://digg.com/motorsport/Improving...chanical_Means