GT Performance Mods 2005+ Mustang GT Performance and Technical Information

I'm switching to SCT

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Old Jul 25, 2005 | 09:09 PM
  #21  
softbatch's Avatar
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Originally posted by 169stang@July 25, 2005, 5:52 PM
I know that you would be able to go to SCT's website and in the forums, be able to get a tune for just about any mod. You'd also get support for any issues that arise. I went ahead and bought the program that allows me to create tunes or modify base tunes to every extent. It's the same program the tuner's use. I'm still learning about it and how to use it.
I do agree that both products should result in roughly the same performance. It's mostly a matter of service and support with the product. One tuner may have already worked out a tune for mod A, while the other isn't quite there yet. George, I know a Diablo tuner if I can help you in any way. Diablo is just down the street from me.

Can you tune the VCT with the advantage tuner?
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Old Jul 25, 2005 | 09:28 PM
  #22  
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James, are you referring to the Pro Racer's package? It's an Advantage software. It's the same program any SCT tuner would have. You can change pretty much anything within the computer as far as I know.
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Old Jul 26, 2005 | 10:03 AM
  #24  
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Originally posted by Blazing Saddles@July 26, 2005, 2:26 AM
All I have now is bolt-ons. They've done extensive dyno testing of the tunes for the CAI's. They know exactly the max output for these CAI's. You add another simple bolt-on and it exceedes the programed value for the torque management. Like I said before they could easily add a feature to the tuner to turn torque management on or off.
I agree with you, George... it seems they could accomodate the needs of the "advanced" users of their product; especially on a new platform such as this!

But, frankly, I woudn't even know how turning torque management on/off would effect my car. I haven't had it long enough to fully understand everything (and I'm just not that savvy on how it all works).

That's why I appreciate guys like you, David and several other serious drag racers who are willing to share your successes and failures with us. Thanks again!
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Old Jul 26, 2005 | 10:49 AM
  #25  
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So has it been confirmed that the Predator doesn't fully turn off TM? If so, all us Diablosport users should email the company and voice our frustration.
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Old Jul 26, 2005 | 11:52 AM
  #27  
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I hear ya, I own a Predator and so far a happy camper with my canned tune, and the adjustments I've made. Once I do get a CAI AND redo the exhaust, I'll be looking for a custom tune. I have a shop in mind and we'll see how far I get with disabling/backing off TM.

When I got my Predator SCT didn't have the X2 or the racers package. A lot has changed since, and I'll have to give kudo's to SCT for coming up with the racers package for those that want to go beyond what the handheld gives you.

Good luck!
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Old Jul 26, 2005 | 11:56 AM
  #28  
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Originally posted by Blazing Saddles@July 26, 2005, 12:31 PM
I've seen posts from DiabloSport on several forums in responce to the torque management issue. They say the torque management is there to protect your transmission. My position on this is our sport won't evolve with torque management.

For the 5R55S tranny to evolve into a true performance tranny we need to push it to its limits. The C-4 tranny is a perfect example of this. That tranny evolved into a true performer, so much that the serious racers are replacing the trannys in the 05 with the C-4.

Personally I could care less if I push the tranny beyond it's limits and break parts. Once we find out what will break companies like PA Transmissions, and Lentech will have the opportunity to make the hardened parts needed to make the 5R55S Bullit proof.

There seems to be a double standard here too. In the tuner you can change timing and A/F ratios. They put in a disclaimer that you do this at your own risk, that serious engine damage could occur. It seems to me that they could do the same for torque management.

Just my opinion.
What about manual transmissions? I have a suspicion that it's still on.
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Old Jul 26, 2005 | 12:30 PM
  #29  
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The computer can't interface with a human yet. What I'm getting at is how can a computer back off the torque during upshifts when it has no idea when YOU are going to shift. It can't. Torque Management is a function of the auto not the manual. Now there are other things it can do, like retard timing if it detects detonation about to happen. And you still have the drive by wire system, which can be fine tuned to reduce any lag.

I did find this interesting tidbit!

http://www.diablosport.com/GMparameters.php

Well, they do it for the GM auto's.... why not ours? Maybe they will at some point in their next releases
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Old Jul 26, 2005 | 09:15 PM
  #30  
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Originally posted by Blazing Saddles@July 25, 2005, 5:14 PM
Dave. I finally got the rear tires on the car W/O the rear sway bar and the car hooked so well that the torque management kicked in and made it fall flat on it's face. Still working on the fronts. I need to open up the holes in the hubs for the wheel studs, and install the line lock.

George that is what I believe mine is doing and I have been trying to get the tune right as you instructed but it still has no low end.
.

Tony your statement about finding a good tuner is great. PLEASE FIND me one a reasonable distance from STL. I have been on the phone and web networking for hours.

George and I have had the same experience with tuners. The very few that know ANYTHING about the 05 GTs have no experience with automatics. Remember mine going into limp home mode on an eight lane in rush hour traffic on the way from a trip to a tuner. Last week I called a nameless tuner I read about in a magazine and he will not even talk about an automatic as he has no experience with them.
I am more pissed than George because I have not even been able to make mine run as well as his. If I had his times I would stop right there.
What is the Predator dealer going to do for you when he is mail order from -RPM outlet or does not know poot about the car.
I have address this issue with Nick at DS and have never received a satisfactory response.
If the DS manual would just instruct flat out.
To adjust MAR curve do this. Look for zero in the curve data logging.
To adjust long and short time fuel do this.
And why are the fuel adjustments backwards. Minus -- means more fuel not less.
What does the dealer have to guide him that I do not?
I even asked if the two books DS sells at $50 a pop will help me and got a maybe, could be response.
You cannot even use the predator without agreeing to the liability waver so whats the big deal? Is DS protecting their dealers by holding back information?
I do not want DS protecting my transmission. ( Their words ) by not giving us torque management control. I was the one who wrote the check. Its MY car not DS property.
End of rant.
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Old Jul 26, 2005 | 09:26 PM
  #31  
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I know this isn't helping anything, but I'm happy with my SCT!
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Old Jul 26, 2005 | 09:30 PM
  #32  
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darn, where's that certain smiley I use at my other home :scratch: Oh yeah, can't use that here
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Old Jul 26, 2005 | 09:40 PM
  #33  
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Tony if you put the shift RPM up to hypothetically 7500 it knows where it is going to shift at WOT. Is that not correct?

Maybe someone can answer this question. When tuner dynoed my ride and changed fuel ratio it only took a few moments. When I make changes to the custom tune I have to go back through the process of loading it back in after mods. I do not remember him going through this drill. Is there a shortcut?
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Old Jul 26, 2005 | 09:43 PM
  #34  
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Tony...were you going to have me read between the lines.
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Old Jul 26, 2005 | 09:48 PM
  #35  
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Originally posted by Mongoose@July 26, 2005, 8:43 PM
Tony if you put the shift RPM up to hypothetically 7500 it knows where it is going to shift at WOT. Is that not correct?
I just wish the shift point function wasn't capped at 6200rpm. I'd like to set mine a little higher; but I can't. :bang:
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Old Jul 26, 2005 | 10:00 PM
  #36  
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I haven't messed with the new shift parameters as the way I drive my auto, I'm fine with where it shifts if I'm just running in D, it shifts right at 6250 at WOT, and that's cool with me.

I have however moved the rev limiter to 7000 rpms. I do this so when I'm manually shifting the auto it gives me a little more of a fudge factor against hitting the rev limiter. That I like

Now once you already have a tune loaded, you should be able make parameter changes without having to unload or reload the tune?

I've made timing changes on my 91 Octane tune without having to unload it or reload it. All I've had to do is save my changes. Now I don't have a custom tune yet, don't have enough mods for it to be worthwhile.

Bill you have the JLT, correct? What happened to the DTP tune? Did you get that or try to go straight to a custom tune from someone else?
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Old Jul 26, 2005 | 10:02 PM
  #37  
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Originally posted by 169stang@July 26, 2005, 8:46 PM
Tony...were you going to have me read between the lines.


Yup!
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Old Jul 26, 2005 | 10:47 PM
  #38  
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Originally posted by SixtySix@July 26, 2005, 9:03 PM
I haven't messed with the new shift parameters as the way I drive my auto, I'm fine with where it shifts if I'm just running in D, it shifts right at 6250 at WOT, and that's cool with me.
You might want to verify that again. The most it can be is 6200 with the Predator. I wish I could set it for 6250 or 6300.
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Old Jul 26, 2005 | 10:51 PM
  #39  
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Originally posted by softbatch@July 25, 2005, 9:12 PM
Can you tune the VCT with the advantage tuner?

Not with the simple X-2, besides tuning the VCT has no affect on power increases. VCT is for fuel milage, thats it. I can go into more detail but only if it's so requested.

As for Torque reduction only being for auto's, that's not entirely so. The Manual PCM's also have it as do all 05's. On your stock program when you get near the rev limiter and feel the car die out, can you figure out what's going on? Also the engine has other parameters and calculations it uses to determine when Torque reduction should operate. Most of the time it's right when you don't want it to. :scratch:

Thanks, Doug.
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Old Jul 26, 2005 | 11:28 PM
  #40  
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Well I know if you go to sct's site you can use there dealer/tuner locator. Also I know that there is a mustang shop near south county that I visited that had just worked on an 05 and all they do is mustangs and lots of beefy mods. Guy was super nice. Talked to him for a while about tuning my gt which is an automatick. But I believe he uses predator software. Guy really seemed like he new a lot and had been doing it a long time. I had been a mechanic for 8 years and asked him lots of questions, of which he had know problem talking about. He also showed me several dyno graphs from the supercharged 05 etc. Well anywhere here is his info. Good luck.

MUSTANG MUSCLE PERFORMANCE
1506 Gravois Road
High Ridge, Missouri 63049
Phone: (636) 677-9987
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