05 Automatic RWHP
04-20-2008, 05:50 AM
#11
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04-21-2008, 01:37 AM
#12
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Join Date: Apr 2007
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Posts: 447
RE: 05 Automatic RWHP
Do you guy's think this is the issue?
Hi, I have a 05 Saleen SC281 Ford Mustang with an automatic ...
Printed From: Just Answer!
Category Name: Ford Questions
Category Description: Ford Repair Questions, Service & Troubleshooting. Car Problem Advice From Ford Service Experts
URL: http://ford.justanswer.com/questions...1-ford-mustang
Printed Date: April 21 2008 at 2:26am
Question: Hi, I have a 05 Saleen SC281 Ford Mustang with an automatic ... [hr]
Posted By: saleen3
Question: Hi, I have a 05 Saleen SC281 Ford Mustang with an automatic ...
Date Posted: April 20 2008at7:53pm
Hi, I have a 05 Saleen SC281 Ford Mustang with an automatic transmission. My problem I just installed a 550 hp JDM upgrade kit 1-week ago and everything worked fine, transmission shifted perfect very precise. I went to the Dyno yesterday to do a couple runs to check my A/F ratio which was fine at 11.6. It was suppose to pull around 460 at the rear wheels, only pulled 416. I call JDM and said it was do to the Belt they supplied me with my upgrade that it was to long and therefore the supercharger pulley was slipping, that seemed reasonable. As I left my Dyno shop I noticed 3rd was very weak. In other words, if I go through the gears manually at about 3000 rpm's 1,2 are fine then when I put it in 3 it's like I put it in neutral, If I back off the gas to about 2000 rpm's 3 will kick in but if I increase the throttle a little faster than a gradual exceleration it acts like it is in neutral and rev's to red line until I back out, 4 and 5 are fine? What is the problem?
Replies: [hr]
Posted By: Vincent
Date Posted: April 20 2008at9:15pm
It sounds like you have burnt up the band for third gear. In an automatic trans, there is a seperate clutch pack or band for each gear in your case the intermediate band applies to a drum. Chances are very good that the band is burnt and no longer to apply any friction against the drum. Hence the slippage.Part of the problem is: That transmission is close to it margins with the power that Saleen is running through it, and then add the reprogrammer and bump up the power. The weakest link is what is going to break first. In your case the transmission.
[hr]
Posted By: saleen3
Date Posted: April 21 2008at2:22am
Reply to Vincent's Post: What is the cheapest way out of this situation?
Hi, I have a 05 Saleen SC281 Ford Mustang with an automatic ...
Printed From: Just Answer!
Category Name: Ford Questions
Category Description: Ford Repair Questions, Service & Troubleshooting. Car Problem Advice From Ford Service Experts
URL: http://ford.justanswer.com/questions...1-ford-mustang
Printed Date: April 21 2008 at 2:26am
Question: Hi, I have a 05 Saleen SC281 Ford Mustang with an automatic ... [hr]
Posted By: saleen3
Question: Hi, I have a 05 Saleen SC281 Ford Mustang with an automatic ...
Date Posted: April 20 2008at7:53pm
Hi, I have a 05 Saleen SC281 Ford Mustang with an automatic transmission. My problem I just installed a 550 hp JDM upgrade kit 1-week ago and everything worked fine, transmission shifted perfect very precise. I went to the Dyno yesterday to do a couple runs to check my A/F ratio which was fine at 11.6. It was suppose to pull around 460 at the rear wheels, only pulled 416. I call JDM and said it was do to the Belt they supplied me with my upgrade that it was to long and therefore the supercharger pulley was slipping, that seemed reasonable. As I left my Dyno shop I noticed 3rd was very weak. In other words, if I go through the gears manually at about 3000 rpm's 1,2 are fine then when I put it in 3 it's like I put it in neutral, If I back off the gas to about 2000 rpm's 3 will kick in but if I increase the throttle a little faster than a gradual exceleration it acts like it is in neutral and rev's to red line until I back out, 4 and 5 are fine? What is the problem?
Replies: [hr]
Posted By: Vincent
Date Posted: April 20 2008at9:15pm
It sounds like you have burnt up the band for third gear. In an automatic trans, there is a seperate clutch pack or band for each gear in your case the intermediate band applies to a drum. Chances are very good that the band is burnt and no longer to apply any friction against the drum. Hence the slippage.Part of the problem is: That transmission is close to it margins with the power that Saleen is running through it, and then add the reprogrammer and bump up the power. The weakest link is what is going to break first. In your case the transmission.
[hr]
Posted By: saleen3
Date Posted: April 21 2008at2:22am
Reply to Vincent's Post: What is the cheapest way out of this situation?
04-21-2008, 07:20 AM
#13
4th Gear Member
Join Date: Feb 2007
Location: Illinois
Posts: 1,726
RE: 05 Automatic RWHP
There are no guarantees in life and although your tranny is slipping you asked for more power now you have the result of that power gain.
My third gear was toast at 445RWHP after 3200 miles. The POS stock converter started unlocking alll the time at high RPM too.
I had to go to a Level 10 built tranny.
My third gear was toast at 445RWHP after 3200 miles. The POS stock converter started unlocking alll the time at high RPM too.
I had to go to a Level 10 built tranny.
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