slipknotrain

i have a U7146 predator tuner for my 98 mustang gt and i have only deleted the O2 sensors and i am not very familiar with the rest of the device. i have joined and discussed my problem on the forums on the official site but no one can seem to tell me much but "read the manual." well i've read my manual and it just goes over how to hook it up and push buttons, thats about it. i need to know what changes will cause what outcomes and how not to mess up my ride. ANY information anyone has would help greatly.
thanks guys

marcuslee842

Well if u bump the timing all the way up (use 93 octane of course) U will get an increase of about 10rwhp. Also if u have an auto turn torque modulation off, firm up the shift and adjust shift points. It will really wake the car up. Don't mess with the A/F ratios because u can really mess something up. I leaned mine by one point, I think it's about .5 on the tuner. Other than that, u could turn off the speed limits but nobody I know drives faster than the 130MPH (I think thats tha speed limit). Also u can up the idle a few rpm if u prefer. I hope this helps.

slipknotrain

yeah man i really appreciate it, thats the kind of stuff i need to know, on diablosport forums i got one reply and the guy said, "read the manual and have fun with it." he might as well not have said anything, but like i said thank you very much. i have a 5 speed and what does upping the idle do for it? i mean, there is no idle for a manual really is there? or am i missing something.

Darkcrime

every car has an idle, that's the point where it sits (idles) at while you are not moving, no foot on the gas or anything. Changing the idle on a manual wouldn't help. I wouldn't bother changing it.

Ultimeas

Be aware, I bumped my timing all the way, and my car lost SERIOUS power after about 4800 rpm. I'm not sure if it was my plugs not providing enough spark or what, but just be careful. I would turn it up little by little and see if you lose power or if anything feels weird.

DVS_Z28

either take it to somebody that knows what there doin or get a dyno tune.

FixFalcon

I bought my car from a guy who installed a 93 octane Diablosport tune, but didn't advance the timing at all so the CEL came on all the time. I advanced the timing 10% and kept using 93 octane gas, and I haven't seen the CEL at all. It also runs as fast as a raped ape, well, as fast as a non-PI 2v raped ape can run.

slipknotrain

see, i live in fort smith arkansas and there is no one here who knows anything about it haha, so pretty much tune it to run 93 octane and up timing %10? i will be swapping a 5.4 4v in a month or two but i just want to play with this for now. thank you very much guys.

nbatchler

Do ur self a favor get rid of the Diablo tuner, matter of fact mines up for sale 300 shipped... If u ever plan on supercharging it in the near future sct is the way to go.

DVS_Z28

yea but in my case i sold my diablo, bought the SCT, then bought my Vortech and it came with an SCT tuner so lost a lot of money in the long run!

plus it all depends on the tuning software that the tuner has. some may not have SCT, i say sell the diablo and wait till blower time, then get a tuner for your "tuner" haha