Yeah, guys, you gotta take those results with a grain of salt because like I said, I was having traction problems since I was running with stock tires and 4.10 gears on my automatic. Next time I go to the track will be with Mickey Thompson ET Street drag radials, so traction problems should be very minimal if any. Now I haven't gotten my car dynoed since I got the tune from Brenspeed with my current mods, so I have no idea how many more ponies the Evo tune has on my car. If you want to get technical though, look at the two time sheets I'm attaching below and look at the difference in times. Now, if the Evo tune has more horses, shouldn't it catch up to Brenspeed as I go down the track? For some reason Brenspeed kept increasing it's lead as I went down the track!

Now, for those that like numbers, I'm going to attach two comparisons, one is with my best run of the night, the other is the Evo run against a Brenspeed run that had a closer time. My car still seems to run better with the Brenspeed tune though, because that Brenspeed run on the second comparison was of my second run of the night. On that run we hadn't even let our cars cool down yet, had not used the ice bags on the intake, plenum, and I had not lowered the tire pressure on the rear tires yet! The good thing about these time slips is that they're from an automatic, meaning that after the initial tire spin I'm just flooring it all the the way down the track, the tunes take care of the shifting for me.

I'll let you guys know when I get drag radials though, next time I also will not waste any time running the car while it's still hot.


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Well it was the identical car, driver, track, weather, identical everything. 60ft. times are identical too, if not even leaning toward the Evo tune by 1/100th, yet the supposedly inferior tuner came out on top at the track. I guess the underlying message in my post was don't count out Brenspeed just because his tune made less hp on his competitor's dyno. Just my observation comprised only of what I've seen on this thread. Other opinions may vary.

 

I am really interested in how hard the auto transmission shifts. The stock GT auto transmission seems to shift a little soft.

Fred at EVO has an auto GT and it appears Brent has one too. With my EVO tune the auto shifts harder than stock. And, unless its my imagination, something else has been programmed to have the auto shift differently than stock.....just cant put my finger on it. Just something different. Hmmm

Any way you look at it a "Custom Tune" is the only way to go. Whether it be from Fred at EVO or Brent at Brenspeed.

I still have the stock rims and tires on my GT. Based on dkano's runs I'm looking at the mid to lower 13's.

I can live with that with just a bunch of bolt on's. I'm still making payments on the car so I wont be putting on a turbo or super charger right now.

Lot a good info here.

 

I really wish we had gotten before and after GRAPHS of our Dyno sheets Julio. Although our numbers on the dyno are based on peak RWHP & RWTQ numbers. I am convinced that the car feels more responsive and stronger with the Evolution tune, only time will tell when I hit the track. Although in order for me to properly put the debate to bed I'm going to have to switch tunes like you did. I think your new upgrades and increased HP from your Evolution tune is making you spin too much and you're losing that time?

Like many have said in the past... A launch will make or break you. -- I'm not defending Evolution or putting down Brenspeed. I just think that we gained more then just peak power with the evolution tune. I think we gained overall power over it. -- Or maybe that's just me.

Oh, and for the record... I'm still .001 second faster then you in the 1/4 lmao. Plus I trapped at 106mph. Booyah! Teasing. Good job man.

 

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You're lucky I was having traction problems!!
But you're right about the graphs though, even better if we had graphs of the two tunes on the same page.

As for the shifting in the automatics, for me it's kinda of hard to tell the difference between the two tunes because the 4.10 gears changed everything! If I'm stopped and I just floor it I'm going to be spinning the tires for 1-2 seconds with either tune, I proved that when I went out to test the two tunes with Drbobvs (Rob) last week. The only way I was able to beat him from a dig was to leave traction control on. I know I could have done better with both tunes if I had better tires and more time to do more runs. Our cars are not slow being that they are automatics though. My previous best time was 13.34 with just the C&L intake and 93 tune from Brenspeed. That was with stock gears, so I didn't have much traction problems.

I'm not going back to the track for another 2-4 weeks, so maybe by then Menace will also go and we'll get a chance to test both tunes again. I'll have my Mickey Thompsons by then too, so I'll have a chance to really work on my launches without having to worry about spinning out for 1-2 seconds.

 

Here's what we managed to pull when I went down there. We did manage to barely break 300 at the wheel with the tune, an intake and an O/R crossover pipe.



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Menace

It sounds like the tunes will fade over time, that being said is it possible that you had been running with the brenspeed tune for a couple of weeks and some of its potency had dropped off, then you loaded the evo tune and it was completely fresh. Not sure if you did this or not but it seems the better test would have been to reload the brenspeed to when arriving at EVO for the original dyno and then load the new evo tune.

I have the evo tune myself and I think it is great, but that could explain the low HP numbers from the brenspeed tune.

 

Well you should ask Brent if he turns off the OBDll or not. Then it shouldn't fade if the OBDll control works.

 

Due to the concern for 'fading tunes' I frequently reload the tunes. When I arrived at Evolution for the Dyno Day the Brenspeed tune was probably about 4 days without reloading... Though the tune wouldn't fade in 4 days, and if it did... Then that would be really lousy wouldn't it?

 

Hey Guys,

Before I got my 93 Extreme Tune from Fred at Evo we taked about tunes "Fading" Fred assured me the he turns off/disables the "Adaptive Learn" feature in the OBDll to prevent "Fading". I put on about 300 miles a week driving back and fourth to work all week (highway).

I can tell ya the (custom) 93 Extreme Tune from Fred aint fade'in.