Yeah, the dealer probably won't do anything without an engine code. cmm101, VT Engines is near you. So you do have a good mustang place to get your car sorted out the way you want it.

 

Thanks for the detailed post. It gives me some hope that I don't have a problem, I just need to wake the beast with a tune!

 

I am curiuos. What oil weight are you running and what octane gas?

 

cmm101,

I have an auto that ran well bone stock. I could break the tires loose from a stop, but never got a chirp when it shifted to second. I had been a forum member for about four months prior to getting my car. I read nothing but good things about Lidio's tunes for the autos. I ordered a C&L CAI and his 87 and 93 tunes on an SCT XCAL II. I first loaded the 89 tune and the tires not only broke loose, they roasted. When the car shifts to second I get a huge chirp and it feels like it is kicking sideways. I just recently found 93 gas in Oklahoma City and loaded the 93 tune. The 93 tune basically does more of the same w/ quicker acceleration and harder shifting. The guys are right about the heat affecting your car though. That will happen even with a good tune. Your problem sounds like a little more than just heat. I recommend Lidio's tunes. I promise you won't be disappointed. People on here say Doug w/ Bamachips is great too. Give Lidio a call sometime. He is usually in the shop before 10am m-f. Check out his website www.alternativeauto.com.

Good Luck!

 

you folks also need to understand that the stock tune is somewhat self adjusting based on what your driving style is like. It could help to disconnect and then reconnect the battery to allow the transmission to readapt.

The only other thing I can tell ya to do is get yourself a handheld tuner and put the thing on a dyno and have em squeeze the power out. Even the canned tune of a Diablo Predator or SCT XCAL should net you better results.

The stock tune in an auto sucks and thats due to torque management.

-Dan

 

by stock tune, do you mean stock as in what comes with the car? or what comes as "generic tunes" in the tuners?

 

Dont understand this as an assholish comment but did you not read that I already answered that by naming stock and then canned tune of a handheld?

Just so you know... stock is stock, if it was anything else it wouldnt be stock.

-Dan

 

I'm just trying to make sure I understood your post correctly. my tuner came with profiles, and I'm not really convinced that they elminated the torque management, because the low end still feels pretty weak. "canned" is not a term I'm familier with.

 

Running 4.10's, bamachips tune and BFG f1 gs d3 275's I can smoke the hell out of them. I also get chirp hitting 2nd and 3rd.

 

Stock rear-end gears, auto tranny, slightly modified powertrain. No problems lighting up the tires.

 

from a stand still with no brakes? hm... maybe I should get mine tuned instead of using the generic tunes. Same gears, but stickier tires and you can fry the tires from a stop? that probably means you have more power down then I do, tune must make a difference

 

From a dead stop my car in stock trim would not even break the tires loose. This is with a 4:10 rear also. Like I said it ran like crap until I installed the tune.

 

I have 4.10's as well. Maybe sometime I'll go through a few tanks of 91 and put the 91 tune in the car and see if it's much of a difference.

 

My 06 Auto was the same before I got an XCAL and tune. It was very soft on the launch and shifts where smooth but never got a chirp on the 1 2 shift.

Now with tune the 1-2 shifts chirps/spins the tires and I can smoke the tires from a flat punch.

It's all in the tune!

 

I was pretty much in the same boat as you when I first got my '05 GT. Had serious trouble smoking the tires and the shifts felt sloppy and weak. I was even considering trading the car in just to get a manual. Did a lot of research and got Lido's 91 tune with the C&L XCAL2 combo. After installing I haven't stopped grinning. I have to be carefull now when launching from a start because it's so easy to break the tires loose - even with my 285/45-18 BFG KDW2's and the stock gears.

Doug

 

does Lido have an email address? I'd like to get some general info on his tunes, but don't feel it warrents a phone call until I'm ready to order one. I didn't see any email contact on the website?

 

Great info on automatic GT's! While I dont have a Mustang yet, I am seriously considering one, but the Ford torque management with an auto tranny issue had me concerned until I read this thread. That Lido tune with CAI seems like something I would do, but I am kind of wondering if anyone heard of auto trannys having an early demise from this kind of tuning. My current car is a Monte Carlo SS with the 5.3 V-8, and in GM's infinate wisdom they only could shoehorn the common V-6 tranny, the 4T65-E in the car and apply heavy torque management to keep it alive. I tuned away enough of the TM (using HP Tuners) to make it much less obnoxious, but started to notice evidence of the tranny getting some slip after a shift with too much TM removal after reviewing recorded WOT run scans. I think that was a function of the tranny just not having enough torque capacity and GM uses an electronic bandaid to get around that. Which gets me to my question...what is the real torque capacity of that 5 speed automatic tranny in the Mustang? Is it used in any trucks with bigger engines anywhere to compare what it is known to be good for? Anyone actually personally tinker with the tuning and record some scans after tuning away the Ford torque management to see if it is slipping post shift? (Is this even possible on a Mustang?). Thanks for anything you guys know about this!

BTW...I'm thinking either redfire or possibly the new (faster) alloy color for my -possible- Mustang

 

There are several of us putting 500 ft-lbs of torque (or more) through these 5R55S trannys and I haven't heard of any failures yet. In fact, JDM Engineering is now running deep into the 10s (at 130mph) with an auto trans car. http://www.modularfords.com/forums/2...lub-58982.html

 

cmm101 has you mpg's droped off also? How many miles are on your car. Also after you reset your computer I believe it take 50 miles or so to relearn your driving habbits. Some one please correct me if I am wrong here.

 

It seems that the hot humid air of the summer does affect these new mustangs greatly, but I think that goes for just about any motor. When it is cool and clear air outside, my GT has a lot more power and snap. After reading this post the other day, I decided to try a burnout from a dead stop. It was a cool night and she felt pretty strong. I stopped, turned off the TCS and floored it. I got a nice burnout but no chirp from 1st to 2nd. I am stock except fof SLP lm's and K&N filter.