Originally Posted by madmatt9471

Thanks for getting back to me I appreciate it -

Reason I asked about the gears was that I have been trying my best to decide between the 3.42 and 3.15 ratios and a 3200 YANK stall (been seriously leaning towards the 3.42 gearset for this A6) -

Seeing the video of yours launch, run through the gears (1-4) and listen to it go through the lights - I think I have made up my mind now for the 3.42's and YANK 3200 (although you are running the 3400)

Very cool - by the way I still cannot believe no one has picked up your 2.73 rear in the F/S section, even with all the price drops

Thanks again and a great N/A combo for sure!

Thanks,Matt

Originally Posted by jleews6

your car is running awesome and mid 10s is flying for a nice N/A street car but I have to tell you how jealous I am of the way your car shifts. Who does your trans tuning? It sounds dead on at every shift.

Originally Posted by HOXXOH

The problem is that a 2.73 gear is good as a replacement for a broken 2.73 or 2.56, but not as a performance change from either a 2.56 or 3.42. A converter with either gear would be much better for the same money. The 2.56 can cross the stripe at the high end of 3rd, while the 3.42 finishes the same in 4th. The 2.73 requires a shift around the 1000' mark and runs the last 300' at the low end of the HP curve. It also provides virtually no SOTP difference on the street. I'm not trying to say the 2.73 is a horrible gear, but just that selling one won't be quick and easy.

Originally Posted by 5knives

Excellent!!

Do you know what your race weight was?

Originally Posted by KM177122

Congrats on the nice times!

Originally Posted by xBoostx

Thanks KM is first track day with this build will look for another 2-3/10ths i should be able to get with better short times.

Originally Posted by Joe_G

David those are outstanding results! Way to go! You had a goal and you accomplished it and the car looks great.

Did you beat the Maclaren??

Watch the Dragtimes YouTube page, you will be on it for sure.

Sorry I missed you, I moved back home to st Louis for family matters.

Originally Posted by xBoostx

Hi Joe unfortunately I haven't seen any videos published by streetcadrags and likely won't see any as the Maclaren I beat is owned by the race promoter ouch.

Originally Posted by xBoostx

Hello all I picked up this 2011 grand sport A6 Dic 10 2014 been working on it ever sense.

I set out to make it a 10.5 street car stock block stock cubes and got my wishes confirmed today at streetcardrags day at Palm Beach international raceway.

Here are the mods;
Heads and cam, headers, cold air intake and Yank 3,400 stall converter.

Factory intake manifold and throttle body ported by me, I did all the work (nobody better not touch my car)

No power adders.

The races against two GTRs
a Mclaren a hell cat 834 whp on that puppy, modified M4 and a ctsv and others ten passes total.

The fastest two cars I raced were the black GTR with upgraded turbos & E85 and the
Hell cat. They both red lighted against me and the GTR stayed out front.

best zero to 60 1.528

best 1/8 mile 6.760

best 1/4 mile 10.534

other passes 10.567 10.579 10.534 10.546 10.576 10.549 10.549 again 10.541 and 10.771

best mile per hour 130.04

lowest mile per hour 128.85

Will post some vids and time slips later.

All in all a great day and very happy.

My Grandsport vs Mclaren 650S

Originally Posted by Detroit1

That is a great time. Love to see a C6 spank some big dollar cars.

When and where will you be running again. I am local to the area and would like to be there.

Jim

Originally Posted by xBoostx

Hi Jim thanks for you complement always wanted to race a Maclaren win loose or draw winning was grrrrreeeeat.

Not sure rite now hopefully soon return to the track want to try a couple of minor changes in the drive train and 2 inches lower tires so looking forward to it.

Let me know if you need help or tuning on that GS.

Originally Posted by Patrick G

Great times David. Glad to see your combo worked out as well as you hoped. Thank you for including me in your build!

Originally Posted by Detroit1

David,

Bought 2011 GS a few months ago. Owner had American Racing Long Tubes and high flow cats installed and the Vararam CAI. This was done at Carlyle show back in 2014. The tune was done at the show by East Coast Superchargers. This was a dyno and it was a canned tune that they brought with them.
They did not install a 160 degree stat and not sure if they did anything for throttle response etc.
It seems to run okay, however I do notice a smell when the window is down and when I pull it back into the garage. Exhaust at the rear does get some black on the inside tips. Read that high flows will allow smells and realize headers generate more heat/smell.
This is a 6M trans with 11K miles on it. I don't run it at track and only on the street so not sure the present tune should be changed.

I did read some posts that a good tune with these bolts on items should reduce the smell etc.

I do not plan any other performance mods.

Can you provide me a phone number so I can contact you regarding a tune.
Regards,
Jim 954 299 8077