Chris Morales

I was able to duplicate APR's results last night at RPR in the Houston area in my '13 S8. Awesome product. Mods are the APR tune, aftermarket air filters, and race gas. Yes, the density altitude was negative, but the car was also spinning on the 1-2 shift and it had 11 gallons of gas in the tank. 4575 weight without me in it. So it was still an impressive performance.

60ft: 1.761
1/8: 7.082 @ 101.57
1/4: 10.954 @ 126.62 (!)

Also ran 11.18@122 on 93 pump. If I can, I'll post pics of the slips later. The car performs just how they said it would.

This is some love affair I am building with this car. Just got it last November, but I've never had feelings like this. It's like a gold medal decathlete - excellent at everything. I worry I will never love another.

bhvrdr

well done man! I'm looking at a 4.0T A8 and I wonder how it compares when tuned. That is fantastic.

mike

Chris Morales

Thanks man. I considered the same and speculated that it would run about a half second behind (or about as quick as a stock RS7). The A8 APR program seems to gain more than the S6 program does (maybe because the tranny can handle more torque).

gk1

???
A8 APR 93 octane
545 HP
629 TQ

S6 APR 93
563 HP
627 TQ

Chris Morales

See comments from APR below video: https://www.youtube.com/watch?app=desktop&persist_app=1&v=GtXL3ei7SQU

Probably outdated info. Never seen a quarter time on an APR 4.0T A8. I do know that the 8 speed ZF tranny can handle more torque than the 7 speed DCT, and there was speculation APR could go further with the tuning in the A8 as a result.

gk1

Ah...yes...that is indeed an outdated comment. v1.1 for the S6 was the update referred to in the last line which equalized them.
While the ZF may have a higher rated load capacity than the s-tronic the A8 tune to date doesn't take advantage of that.
Also interesting from the video I didn't realize the A8 redline is only 6000.

Chris Morales

Here is the timeslip:

Jack88

I think you were just trying to make up for sleeping on the line.

Chris Morales

Ha, yeah, it's one of those situations where I'm staged and tired of brake boosting waiting for the pickup at the other end to finally clear the track. Some dudes insist on cruising to the very end no matter how slowly. I'm matched against something that was not going to keep up, and I'm really just concerned about the ET. So I backed off and waited until rpms were right to go. Annoying. I could post my .056 light from earlier in the night when I cared about the tree, but I don't think a 13.2 overboost run would impress people much. Didn't have the pleasure of a close race out there.

gk1

Can I ask total weight with driver?
My S6 tips the scales at 4640 with me in it. (Big boy)