A slightly modded ATX tweecer file

[hawkeye18]

I don't have a laptop yet, so i can't do any datalogging, so I don't have any clue whether the fuel ratios are right or not. It seemed to run just fine, though. I mainly messed with the ATX functions; shift points, EPC pressure, etc. Does anything in here look wrong? I did notice that the car seemed to run much quicker with this tune vice the stock tune. Having the car shift at 7500 from first puts it about 4K rpm in second, right at its sweet spot. It's very nice. I also set it so it doesn't downshift all the damn time coming out of a slow turn.

Any suggestions? I'm not looking for A/F stuff as I know nobody can help me with that but me and my logging, but are there any easy "tips and tricks" that I'm missing?

edit: delete the ".doc" at the end of the file, obviously, SHOForum has a size limit on .txt files and it doesn't recognize .ccf files. Bizzy, you should fix that! lol

 

[marbs]

I can't seem to open it.

 

[1slickRED89]

I would be careful till you get a wideband, messing with fuel that is. leave it stock till you can measure what your doing.

also, try downloading the updated ATX file from the SHOnut website. it has rescaled tables and is overall a better place to start.

if you have the facility (drag strip), can you measure the acceleration difference with the shift point at 7500 vs stock. it would be very interesting if that helped the car accelerate.

 

[hawkeye18]

I've noticed 2 things so far: 1) setting the shift point at 8000, regardless of UDPs (which I have), will destroy weak things! Like alternator, coil pack, etc. 2) the shift point at 7500 is good and bad. The bad: the car has basically no acceleration past 6700-6800. It just dies. However, when it does get to 7500 and shifts, it shifts right to about 3800 in second, right at the top of that gear's sweet spot. So it's a loss either way; lose the top end past 6800, or wallow in second gear's low end before the runners open up.

 

[Geek SHO]

Sounds like you need another gear.
The MTX already has super wide gears, I can only imagine what the ATX is like (haven't driven / ridden in one yet)

 

[somedude_001]

I've noticed 2 things so far: 1) setting the shift point at 8000, regardless of UDPs (which I have), will destroy weak things! Like alternator, coil pack, etc. 2) the shift point at 7500 is good and bad. The bad: the car has basically no acceleration past 6700-6800. It just dies. However, when it does get to 7500 and shifts, it shifts right to about 3800 in second, right at the top of that gear's sweet spot. So it's a loss either way; lose the top end past 6800, or wallow in second gear's low end before the runners open up.

if you arre just reving it for the **** of it that is fine, but if you want to make it fast as possible then shifting under 7K is how you win races. you are absolutly incorect about foing from 7500rpm to 3800 unless you are going directly into third at full load that is where your rpm's would be becuse of the loose (factory stall) torque converter. I run mine up to 8K for autoX just so i don't have to shift but it definately stops making good power before 7K.



try this file. you will like it. the shift points are slightly modified but most of the changes are in shift firmness and speed.

axinators file (found in post #10)
http://www.shoforum.com/showpost.php?p=468154&postcount=10


origional thread
http://www.shoforum.com/showthread.php?t=50682&highlight=tranny+tunning

Sounds like you need another gear.
The MTX already has super wide gears, I can only imagine what the ATX is like (haven't driven / ridden in one yet)

haha your not missing out trust me... except for the launch