How well do you feel you shift?
3/27/07 | 05:17 AM
#101
Cobra Member
Joined: August 19, 2004
Posts: 1,288
Likes: 0
Lets think about this. The fuel pump is running flat out all the time and at more pressure than the injectors require. There is a pressure regulator at the engine that dumps off excess fuel pressure back to the tank so the injectors always see the required 35 or 45 lbs (or what ever it is for this engine). No load throttle response requires very little fuel. So why would the fuel pump be to blame? Going on what you described I would thnink either:
a) injectors are dirty
b) the control software is causing the characteristic
c) there are deposts built up behind the throttle plate at the idel position and the computer has the idle bypass near wide open to compensate.
If the pump was toast, you would see significant probelms at WOT acceleration.
Unless you get a tune to the parameters that control throttle action, the throttle hang problem while shifting will not go away. It bugs me too.
a) injectors are dirty
b) the control software is causing the characteristic
c) there are deposts built up behind the throttle plate at the idel position and the computer has the idle bypass near wide open to compensate.
If the pump was toast, you would see significant probelms at WOT acceleration.
Unless you get a tune to the parameters that control throttle action, the throttle hang problem while shifting will not go away. It bugs me too.
So... If it's not cleared up with a new pump, then I'll be the first to say (like Chris on Family Guy) .... IN MY FACE! IN MY FACE!
3/27/07 | 07:19 AM
#102
Cobra R Member
Joined: January 15, 2007
Posts: 1,581
Likes: 0
From: Hampton Roads, VA
It's not only between shifts.... I know what you're talkin' about when you say throttle hang, and that's not the issue I'm trying to correct.. that one is there because of emissions, in an attempt to burn off unspent fuel. The problem I'm talkin' about is throughout acceleration. I get crappy gas mileage, even when I try to be nice, and sometimes my car just feels like a pig. Sometimes it doesn't have the life it seemed to when I first drove it home.
So... If it's not cleared up with a new pump, then I'll be the first to say (like Chris on Family Guy) .... IN MY FACE! IN MY FACE!
So... If it's not cleared up with a new pump, then I'll be the first to say (like Chris on Family Guy) .... IN MY FACE! IN MY FACE!
Winter mix gasoline, and gas that has a small amount of ethanol in it (ie-E10).
I get much better gas mileage with gas in NC (that doesn't have ethanol mixed, and typically doesn't have as much of a winter mix) than I do in VA, who tends to stay on winter mix a little longer.
EDIT: well, I just noticed where you're from. I don't know where Dunedin FL is, but if y'all don't have a winter
, then nevermind.
3/27/07 | 08:03 AM
#103
Mach 1 Member
Joined: August 16, 2005
Posts: 675
Likes: 2
I have not gotten the official Ford Specification on it yet - but it is Hydraulic Assist and two disk. It is a stronger material than the GT and a larger diameter with larger and stronger input. It is the GT500 we are talking about, right? The assembly is made in Italy and retails at about 1500. The Shelby GT has the stock Mustang GT clutch, I do believe.
3/27/07 | 08:38 AM
#104
Legacy TMS Member
Joined: October 2, 2006
Posts: 4,778
Likes: 16
From: Southeast Michigan
I have not gotten the official Ford Specification on it yet - but it is Hydraulic Assist and two disk. It is a stronger material than the GT and a larger diameter with larger and stronger input. It is the GT500 we are talking about, right? The assembly is made in Italy and retails at about 1500. The Shelby GT has the stock Mustang GT clutch, I do believe.
3/28/07 | 03:51 AM
#106
Cobra Member
Joined: August 19, 2004
Posts: 1,288
Likes: 0
The issues you're describing above could be due to a few factors:
Winter mix gasoline, and gas that has a small amount of ethanol in it (ie-E10).
I get much better gas mileage with gas in NC (that doesn't have ethanol mixed, and typically doesn't have as much of a winter mix) than I do in VA, who tends to stay on winter mix a little longer.
EDIT: well, I just noticed where you're from. I don't know where Dunedin FL is, but if y'all don't have a winter, then nevermind.
Winter mix gasoline, and gas that has a small amount of ethanol in it (ie-E10).
I get much better gas mileage with gas in NC (that doesn't have ethanol mixed, and typically doesn't have as much of a winter mix) than I do in VA, who tends to stay on winter mix a little longer.
EDIT: well, I just noticed where you're from. I don't know where Dunedin FL is, but if y'all don't have a winter
, then nevermind.Dunedin is in the Tampa Bay area... right on the gulf. I should change that to Tampa Bay area...
3/28/07 | 10:14 AM
#107
Cobra Member
Joined: August 16, 2005
Posts: 1,079
Likes: 0
From: Central Coast, CA
Thanks.
I think all the diaphram clutches come from Italy ...
I think all the diaphram clutches come from Italy ...
I have not gotten the official Ford Specification on it yet - but it is Hydraulic Assist and two disk. It is a stronger material than the GT and a larger diameter with larger and stronger input. It is the GT500 we are talking about, right? The assembly is made in Italy and retails at about 1500. The Shelby GT has the stock Mustang GT clutch, I do believe.
3/28/07 | 10:46 AM
#108
Mach 1 Member
Joined: August 16, 2005
Posts: 675
Likes: 2
KB had proven the clutch in the GT500 can take 801 rwhp. Word is, the factory max. is at about 900 ft-lbs. but I have yet to find conclusive testing of such.
They installed a hydraulic assist on it and still getting accustomed to it myself. There is a "hiss" sound when you are engaging it.
They installed a hydraulic assist on it and still getting accustomed to it myself. There is a "hiss" sound when you are engaging it.
3/28/07 | 12:15 PM
#110
Mach 1 Member
Joined: August 16, 2005
Posts: 675
Likes: 2
Rating is 360 according to TREMEC Spec. "Someone Else" may have been looking at medium duty Trans. instead of the Light Duty ones.
4/3/07 | 06:57 AM
#111
Legacy TMS Member
Joined: October 2, 2006
Posts: 4,778
Likes: 16
From: Southeast Michigan
After having more face time with the 3650, I find that it is definitely my technique. I'm having a hard time getting used to the throttle lag. It feels like someone is still applying the throttle when I am trying to shift, resulting in clunky upshifts. One way around this is to wait a bit longer for the RPMs to drop before upshifting. With my cable throttle/IAC system in the Crown Vic, closing the throttle means closing the throttle so there's no delay at all.
For slow-speed downshifting I found that it was just my technique. Once I slowed down enough, I could move the shifter to a numerically lower gear w/o any problems. For higher speed downshifting, revmatching is almost always necessary (unless I am doing something wrong).
For slow-speed downshifting I found that it was just my technique. Once I slowed down enough, I could move the shifter to a numerically lower gear w/o any problems. For higher speed downshifting, revmatching is almost always necessary (unless I am doing something wrong).
4/6/07 | 05:12 PM
#112
GT Member
Joined: April 4, 2007
Posts: 112
Likes: 0
We are driving ponies right? Aren't they suppose to buck a little? 
Seriously, the only problem that I've had with my '05 in the past year, is from 1st to 2nd. Sometimes it can be a lil "clunky" but I push it off on a lazy leg. It's not a consistent thing, and I have found out, it depends on the shoes I'm wearing at the time...LOL! 
Seriously, the only problem that I've had with my '05 in the past year, is from 1st to 2nd. Sometimes it can be a lil "clunky" but I push it off on a lazy leg. It's not a consistent thing, and I have found out, it depends on the shoes I'm wearing at the time...LOL!
4/6/07 | 11:45 PM
#113
Bullitt Member
Joined: February 24, 2007
Posts: 223
Likes: 0
From: Manteca, California
Since I am going on two months of ownership of my Stang. I feel my shifting has improved greatly
I still have issues occasionally shifting from 1st to 2nd but not as much. My new problem is a little to much gas every now and then when shifting from 2nd to 3rd. One thing for sure is a new shifter for the next mod, 3rd gear just does not want to line up every now and then
I still have issues occasionally shifting from 1st to 2nd but not as much. My new problem is a little to much gas every now and then when shifting from 2nd to 3rd. One thing for sure is a new shifter for the next mod, 3rd gear just does not want to line up every now and then
4/7/07 | 12:19 AM
#114
Mach 1 Member
Joined: August 28, 2005
Posts: 626
Likes: 16
From: Winnipeg Mb. Ca
Just put 57 km on my 05 GT 5 spd for the first time in 5 months. I've been driving a 93 Mazda 323 with standard steering, effortless clutch and butter smooth 5 spd all winter. All I can say is it feels like I bought a new car and it'll take a few days to get back to slamming gears again. Wow, what a difference!
4/16/07 | 10:28 AM
#115
Mach 1 Member
Joined: August 16, 2005
Posts: 675
Likes: 2
Since I am going on two months of ownership of my Stang. I feel my shifting has improved greatly I still have issues occasionally shifting from 1st to 2nd but not as much. My new problem is a little to much gas every now and then when shifting from 2nd to 3rd. One thing for sure is a new shifter for the next mod, 3rd gear just does not want to line up every now and then
I still have issues occasionally shifting from 1st to 2nd but not as much. My new problem is a little to much gas every now and then when shifting from 2nd to 3rd. One thing for sure is a new shifter for the next mod, 3rd gear just does not want to line up every now and thenApplying a touch more gas with each upshift seems to make a smooth shift for me. My typical problem is not enough gas in 2nd or too heavy on the clutch.
The clutch in the 05 is very light.
4/16/07 | 10:35 AM
#116
Legacy TMS Member
Joined: October 2, 2006
Posts: 4,778
Likes: 16
From: Southeast Michigan
For 3rd gear, try to just let the shifter return to the center from its spring action, and gently push it in forward. If you try to walk the shifter through the gate, you will miss 3rd gear with the stock shifter unless you know where to push.
4/16/07 | 01:51 PM
#117
Team Mustang Source
Joined: January 29, 2004
Posts: 6,730
Likes: 3
I don't know, but with the 07(job 2 at least) I have no trouble hitting 3rd whatsoever, its easy to squeak the tires pretty good on the shift, even with a passenger. I personally don't mind the throttle 'hang' and think it makes for very smooth and fast upshifts, if I'm not careful, my hand actually outpaces my foot on the shift. This shifter is better then my older Tri-ax's. I've sold and driven a bunch of Saleens and the shifter mod they have is much clumsier. 
4/16/07 | 05:05 PM
#118
Cobra R Member
Joined: January 15, 2007
Posts: 1,581
Likes: 0
From: Hampton Roads, VA
I don't know, but with the 07(job 2 at least) I have no trouble hitting 3rd whatsoever, its easy to squeak the tires pretty good on the shift, even with a passenger. I personally don't mind the throttle 'hang' and think it makes for very smooth and fast upshifts, if I'm not careful, my hand actually outpaces my foot on the shift. This shifter is better then my older Tri-ax's. I've sold and driven a bunch of Saleens and the shifter mod they have is much clumsier.
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