Dyno Pulls with an ATX

[Newcat016]

Alright, i went to a very reputable local tuning shop in order to get some more insight on tuning. Firts things first i talked to one guy who was rather dumb. I told him i needed a SCT xcal 2 to calibrate and tune my mercury cougar. He said they don't support them. I insisted that they do and finally was able to confirm this with there tuning tech(the smart one). Now when i asked how to tune the atx they said they would just do some data logging. He tried to explain why an atx couldn't do pulls but i was confused as all hell:confused: :confused: . Will someone please give me the reason why i couldn't do i dyno pull with my atx. in some simplier terms.

[jaged]

because the guy is a dumbass and doesnt want to deal with it. Bensenvil had his atx on a dyno this past fall. I know several others have as well

[hamill]

I have heard that some FWD's can't be dyno'd at some shops due to concerns with alignments being off (as an excuse).....but have NEVER heard anyone say they can't dyno an automatic.

be thankful they didn't try to reset the computer lol....

EDIT: Tell them you want to adjust the shift points and add a few degrees of timing....that might help :)

[jaged]

that could be true if they use rollers, but if they tie it down properly it should be an issue. where bensenvil had his done they use portable packs that bolt right to the hubs

[whiteboy477]

I remember video's of nemisis getting dyno tuned in his ATX with nitrous. so I know it is possible.

[Bigoudi]

Mine has been on a dyno several times. Shouldn't be a problem for you. The guy just doesn't know what hes talking about probably.

Greg

[TrackCat]

They are not tuners. They are Hacks.
All tuning is the same with any car regardless of ECU interface, Transmission, NA, Turbo, Supercharged, or number of Cylinders. What makes them soo good?? because they use set numbers from the company??
In Naperville there is a shop called GRD performence they attach the hub to get real power numbers down.

[bensenvill]

ok first of all, if this shop is confused on how to even get your car onto the dyno, do you really want them reprogramming your engine???!!?!

stop for a minute and think... and walk away.

[COOGAH]

i pray you are not talking about bristol dyno, i was planning on going there

[cpapashley]

ok first of all, if this shop is confused on how to even get your car onto the dyno, do you really want them reprogramming your engine???!!?!

stop for a minute and think... and walk away.

Wise words indeed. Just walk away if they don't know how to do it, find someone who knows what they are doing.

[Newcat016]

Well, this was the same person who told me that an sct xcal2 can't be used with a cougar. I took pitty on him and just kinda laughed since i did my homework. I didn't have time too look around but there were other people who seemed to know what they are talking about. I have too go back there this week and talk to someone higher up. The "new guy" said something about a tourque converter and problems with there interia dyno aka the rollers. I wouldn't see why that is a problem.

[cpapashley]

Well, this was the same person who told me that an sct xcal2 can't be used with a cougar. I took pitty on him and just kinda laughed since i did my homework. I didn't have time too look around but there were other people who seemed to know what they are talking about. I have too go back there this week and talk to someone higher up. The "new guy" said something about a tourque converter and problems with there interia dyno aka the rollers. I wouldn't see why that is a problem.

You know Newcat016, I have been to two dyno shops, while they could not do a lot for me as far as tuning the pcm (keep in mind I am in australia and have a mazda) there was never ever any problem with sticking the MPV on the dyno. I really cannot figure out what the issue is. There is sometimes difficulty getting a reading below 2,000rpm because of the torque converter I think, but really who is interested below 2000rpm anyway :biggrin:

[bensenvill]

I just dont understand why you are trying to force a bad situation. There is nothing wrong with getting your car dynoed there but dont tune with someone who's unfamilur with the duratech.

I'd suggest doing some datalogging and a dyno and handing the tune over to warmonger.

[whitecat99]

I could see a potential problem if the torque converter did not lock up, due to slippage. Since the Cougar torque converter locks up, there should be no problem.

I know we had a problem with my race car a couple times due to slippage. Once the car was so low the chassis was touching the frame of the dyno and there was less traction with the tires causing them to slip. Another time the clutch had a problem and was slipping a little and the dyno picked up on it right away.

[Newcat016]

That was what the problem was. I did not know we had a self locking(i assume) tourque converter. I believe he was concerned that an accurate reading could not be attained since the supra's and such that are normally tuned there don't have a self locking tourque converter. since not many automatics had gone throught the shop, there were previous ones that the tourque converter did not lock up on and they couldn't get a pull done.

[cpapashley]

I just dont understand why you are trying to force a bad situation. There is nothing wrong with getting your car dynoed there but dont tune with someone who's unfamilur with the duratech.

I'd suggest doing some datalogging and a dyno and handing the tune over to warmonger.

x2