Tuning for Autocross - Page 2 - Ford Mustang Forum
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post #16 of 20 (permalink) Old 09-03-2013 Thread Starter
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Originally Posted by csamsh View Post
Whatever you run, try and get as linear throttle response as possible. The Bama "race" tunes are no good, makes the gas to much of an on/off switch for my liking.
I'll see if they can manage that. If not (or not to my liking), I'll have to get a custom tune which means at least a $400 expenditure.


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The SCT tuner doesn't allow you to mess with any values in the tune. I don't know if that's because of the tuner itself, or the tune being locked somehow.

I'm going to manually shift, so the "automatic" part of the equation is off the table. Weight distribution is (or should be right around stock values. I still have to relocate the battery (I have the parts for that, it's just been too freakin' hot to work on the car).

I might also be adding a trailer hitch (so I can build myself a tire trailer), so that will add about 30 pounds to the back of the car.

I sent Bama a question about an auto-cross-specific tune. I don't expect an answer before tomorrow afternoon.
Good idea. You're already apart of the Free Tunes for Life program, so you mies well take advantage of it!

If you have any questions or troubles contacting Bama just let me know. I'll get you in contact with one of my best Bama Specialists if needed! Just send me your First/Last name and shipping address via PM.

Although, I don't anticipate you'll have any issues. Our Bama Team is excellent at fine tuning for particular uses like Auto-cross!

Shane


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post #18 of 20 (permalink) Old 09-03-2013 Thread Starter
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Originally Posted by AMShaneLesky View Post
Good idea. You're already apart of the Free Tunes for Life program, so you mies well take advantage of it!

If you have any questions or troubles contacting Bama just let me know. I'll get you in contact with one of my best Bama Specialists if needed! Just send me your First/Last name and shipping address via PM.

Although, I don't anticipate you'll have any issues. Our Bama Team is excellent at fine tuning for particular uses like Auto-cross!

Shane
I hope so. I really don't want to spend that kind of money if I don't have to. I'm assuming that the 93R tune is optimized for drag racing, but since I don't know anything about how a tune is built, I don't know the questions to ask or what things I want done in the tune.

I don't even know what the differences are between the 87P and the 93R are besides the higher fuel octane rating. Autocross is more about throttle/brake finesse than balls-to-the-wall right-now throttle response (while at the same time having something better than the 87P throttle response). The only thing I'm sure of is that I want firmer faster manual shifting, and that I will not be shifting higher than 3rd gear.

I guess we'll have to wait and see what Bama comes up with.

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jsimmons,

I would give a Bama Specialist a call directly @ 888.257.1770. You'll be able to voice your complete concern and interests over the phone much easier. They'll be able to work with your feedback from there!

Don't worry about how the tune is built up, leave that to our Bama Specialists. That's what they're here for! Just make sure they're aware of the performance behaviors you're looking for out of the tune (throttle response, shifting speeds, etc.).

Shane

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Quote:
Originally Posted by jsimmons View Post
The SCT tuner doesn't allow you to mess with any values in the tune. . . . . .

Yes it does -- or at least mine does, I have done it, for both rear end ratio and tire size.

You go in as if you were going to load a tune; at some point it will present a screen "adjust parameters" ; select that option and then it gives a list of things that can be adjusted -- rear tire size (revs/mile) is one of them ; then youi continue to load the tune, with the adjusted parameters. So you CAN adjust for the track tires when you load the track tune.

But it still doesn't make any real difference . . .

I don't understand this talk about the 93R tune being to touchy on the throttle response. I drive that tune on the street all the time and I don't see any big issue. Maybe in autocross I'd notice, I haven't done that (yet) so I don't really know.

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