B7 RS4 Rolling Road Day 18th April 2009 (Free of Charge)

Post by **booski** » Sun Apr 26, 2009 5:48 pm

Does the gear make that much difference? My dyno was done in 4th gear but I notice the fellas who went to the organized RR day were in 3rd gear

Post by **lengster1** » Sun Apr 26, 2009 6:08 pm

Was hoping to get some figures for what a milltek/de cat etc offers performance wise,which cars had them and what type?

Post by **ArthurPE** » Sun Apr 26, 2009 6:19 pm

booski wrote:Does the gear make that much difference? My dyno was done in 4th gear but I notice the fellas who went to the organized RR day were in 3rd gear

between 3 and 4? probably not...

the lower the gear (numerically), ie, higher ratio, the more losses and the more torque put down, so a higher gear should have a bit less loss, and load the dyno up less...

the dyno measures wheel torque...
say 1500 lb-ft
it's divided by the overall gear ratio, say 1.6 x 4.11 = 6.58 (made up ratios for reference)
so axle torque is 1500/6.58 ~ 228 lb-ft, ignoring losses
to get back to engine (crank) which is how mfgs rate the engine, you must add in losses for tires, CV joints, diff, driveshaft, tranny, etc.

Post by **booski** » Sun Apr 26, 2009 6:26 pm

Thanks for the reply Arthur

Post by **Dom81** » Sun Apr 26, 2009 7:23 pm

lengster1 wrote:Was hoping to get some figures for what a milltek/de cat etc offers performance wise,which cars had them and what type?

Pippyrips and rAudiguy were both running Milltek De-Cats - only difference was downpipes (Pippyrips Milltek & rAudiguy custom) and re-maps

Post by **klauster** » Sun Apr 26, 2009 8:09 pm

some more pics, ive tried to remove all the plates:

Post by **klauster** » Tue Apr 28, 2009 2:10 pm

** cough dyno printouts please? I would like mine tomorrow, it will be useful for me to show Audi

Post by **Dom81** » Tue Apr 28, 2009 2:34 pm

klauster wrote:some more pics, ive tried to remove all the plates

It might be my keen eyesight, but I think your plate is just readable in the last shot

Post by **klauster** » Tue Apr 28, 2009 2:39 pm

hehe oops

Not many white RS4's around they could use it on I guess

Post by **P_G** » Tue Apr 28, 2009 2:56 pm

Good pic of your car and mine; I tried to take some rolling shots of your car on the way back up the road but you were going so fast all the pictures are blurred!

Post by **klauster** » Tue Apr 28, 2009 3:00 pm

P_G wrote:Good pic of your car and mine; I tried to take some rolling shots of your car on the way back up the road but you were going so fast all the pictures are blurred!

hehe dammit, i would have liked one or two from the journey... next time

Post by **Oli** » Tue Apr 28, 2009 3:43 pm

Are you telling me white is faster..........Now where do I get a wrap done.....

Post by **P_G** » Tue Apr 28, 2009 4:25 pm

Apparently so fast it was distorting light

Post by **klauster** » Thu Apr 30, 2009 9:15 pm

Got my car back from Audi York, the usual chimp like service I've come to expect from Audi (sorry but its true - they simply have no idea)

Anyway, 60k service done at 39k - car feels different, more responsive. A few faults diagnosed but done nothing with as yet.

A low torque warning fault 3 times - they are looking in to this

I require 2 new engine mounts.

Other than that, nothing else mentioned. I have asked for learn values next time its in.

They also didnt mention the remap, suggesting they haven't looked at the ECU at all....

I will be going to an RR and getting some data next week of what the car is doing...

Post by **scaghead** » Sat May 02, 2009 12:07 am

klauster, good luck mate hope you get it sorted

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B7 RS4 Rolling Road Day 18th April 2009 (Free of Charge)

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