Took my newly B&G tuned 392 to the track

[Litos]

i'm sure the tune "works", but the improved launching is what got you the 12.7.

[vichammer]

Originally Posted by Litos

i'm sure the tune "works", but the improved launching is what got you the 12.7.

Yes the improved 60' time is a huge part of it, BUT last year, I had 26 passes at Empire Dragway (1/4 mile track 60 miles away) and over 30 passes at Dunn Tire Raceway Park (1/8 mile track 5 miles away), so I assure you the low RPM bog launch and go method that yielded my best times both last year and this year were done the same. The difference again is that now the car instantly stands up and goes vs. the delay that existed with the stock tune. I did not get some epiphany between last year and this year that taught me a new way to launch, nor have I taken any driving lessons.

I'm sure some of the credit can go to the other new mod I installed since last year, the Airaid CAI which I know you are a huge fan of based on your posts in other threads I've read, but last year, I would have absolutely killed for a 12.XX time slip, especially after seeing all these A5 392 owners getting into the low 12's. No matter how I tried, I never came close. I am not a believer in butt-dyno's even though the first ride I took in my car after the PCM swap showed me instantly that the removal or TQ management changed the whole feel in a positive way, I still feel the only true validation is Track or Dyno.....period. There are other members and former members on this forum who know what I ran last year and what I ran last night because these individuals were at the track and witnessed it. Had I gone to the track once or twice last year and got in a half dozen runs, then your argument would make sense. But in reality, last year I tried every single combination of traction control settings and high and low RPM launches possible.

I have no personal interest whatsoever in pushing the B&G tune, except to share my personal experiences with the members of this community. Remember, I posted a couple days ago my first impressions, and promised I would go to the track and report my results and I would have done so whether they were good or bad. I spent almost 1400.00 for a cat back system that sounds awesome but did almost nothing for me at the track, so I'm happy about a mod that cost hundreds, not thousands that actually made a difference for me. The day I pulled out of the dealership with my brand new 392 Challenger back on 4/16/11, I had no doubt in my mind I was driving a 12 second car. I of course came to find out I was wrong then, but now I am driving a 12 second car.

Again, I stand by RB's estimate of up to 4/10's in the 1/4 only because I've lived it. Maybe the rest was because of the Airaid, who knows? Bottom line is with the exception of a very expensive PCM swap, we 2011 and 2012 owners whether they have a 5.7 or a 392 have no other options as far as a tune. Sure, I like everyone would love a hand held unit and a custom tune, but right now I am grateful for the canned tune available to us.

[vichammer]

Originally Posted by Perfracer

Congrats on the improvement in your times, Vichammer. Seems like the tune was a worth-while addition.

To both you and Heminator, how many miles are on each of your cars?

2670 miles on the odometer as of today.

[PanaColonYellowJacketSRT8]

I want to get this mod so bad because it seems to be the only alternative to gain a little horsepower out of our cars and I really don't like being completely stock but I need to find away to do this and get another ecu for warranty purposes.


Sent from my Autoguide iPhone app

[Heminator]

Vichammer is 100% correct.

We have the same car and the same mod list. We have both tried every conceivable combination of RPM, clutch, and ESP in order to optimize the launch on these cars. On street tires, at this track, with the same DA, both of us consistently are putting down 13.2-13.3 passes with our best launches.

Vichammer's good friend Russ, a Boss 302 owner who is a resident hot shoe and has logged a lot of track and strip time, ran VH's 392 a few times. He weighs 160 pounds and his best was a 13.19.

Vichammer's best: 13.29
Heminator's best: 13.21
Russ' best in VH's car: 13.19 (with a 1.9x 60' time)

Trust me - a 12.7-12.8 pass from our cars, at this track, in this DA, on street tires - was a complete pipe dream before the B&G tune. The B&G tune is absolutely good for 4 tenths and 2-3 MPH on the 392 M6. Simply put, it pulls harder from off-idle to redline and it doesn't lay down between shifts.

Here is an interesting point of reference. There was an untuned 392 M6 at the track the same night. This car was shod with huge 315 rag radials. He put down a 12.8 @ 107 pass -proving the launch value of drag radials. Vichammer put down a 12.75 @ 110 pass - on street tires. Look at the difference in trap speed - that says it all. Once the cars were hooked and rolling, Vichammer was running down the untuned 392 in a big way.

[Heminator]

Originally Posted by PanaColonYellowJacketSRT8

I want to get this mod so bad because it seems to be the only alternative to gain a little horsepower out of our cars and I really don't like being completely stock but I need to find away to do this and get another ecu for warranty purposes.


Sent from my Autoguide iPhone app

Talk to Red Barron. You will get a spare ECU with the tune installed. It takes 5 minutes to swap back to the stock ECU for dealer warranty work.

[robo5555]

Now we are getting somewhere! Good solid data. Thanks for sharing.

[Ironside]

Nice job!

For the love of god though, format your giant walls of text... MY EYES!!!!!

[SRTDogg]

Will the odometer be mismatched when you swap the original/stock ECU back in (for warranty work like you said)?? If not, what would prevent me from buying this to then lie when selling my car saying it only has the original 3000 miles on it since I was using the second ECU the whole time I had the car??

[Red Barron]

ECU mileage has no impact on the odometer. It takes an act of congress to change the odometer mileage. Thanx RB

Originally Posted by SRTDogg

Will the odometer be mismatched when you swap the original/stock ECU back in (for warranty work like you said)?? If not, what would prevent me from buying this to then lie when selling my car saying it only has the original 3000 miles on it since I was using the second ECU the whole time I had the car??