[PZ]

Went to an Audi Dyno day and they had an open spot, so I decided to embarrass everyone with my stock wagon

146K, 2.8, Tip, 4Mo. Completely stock. Top half rebuild around 94K. 89 Octane in the tank. Final numbers were 153HP/166TQ to the wheels on a Mustang Dyno. It was far more than expected (130/150) and I suspect it was a "happy" dyno. Either way, it's a good comparison if I do mods. I expect it would have been smoother if I ran 93, but I was not planning to run it.

Rough numbers on the rest until they post:

The winner was an MTM RS6 with 420/525. :salute:

A B5 A4 1.8T ran 401/380 with E85 and a GT30.

2011 S4 had 315/320 stock.

V8 S4 was around 280/280.

2012 TTRS was 317/350 stock. :salute:

2000 S4 KO4's was 380/440.

 

[bill1975]

Isn't your V6 rated at 190 hp at the crank? That seems like a lot of drivetrain loss.

 

[Jmacc]

^ really it's not bad with the 4 motion and a auto tranny.

 

[PZ]

4MO Tip loss is 25-28%.

If you average the torque line with the 28% loss, the numbers are about right. The peak was a spike anyway. The HP numbers are still higher than expected.

I added an 2000 S4 KO4's to the list. I think the 1st car there was a TT with upgrades putting down 220whp.

 

[TheColoradoRed]

4MO Tip loss is 25-28%.

Any idea what portion is attributed to 4MO and what portion is attributed to Tip trans? Just to see where my FWD Tip might be, roughly. A less than 20% total drivetrain loss for your 4MO/Tip setup is pretty incredible anyway.

 

[PZ]

Not too sure anymore. They had the numbers on the chalkboard at the shop, but I did not pay too much attention to them.

 

[gpassat03]

Not bad at all now I know what mine has to :lol:

 

[Mister T]

Actually, assuming PZ was at sea level and his engine was bone stock and putting out 190 HP, the 153 AWHP that he put down with his tip 4 mo is only 19-20% Happy dyno or not, that doesn't seem to jibe with the conventional "25%" driveline loss that every disappointed manual BT Quattro owner claims is how much these cars loose on a dyno.

I've always maintained that manual Quattro driveline losses were in the order of 18% or so. If we assume happy dyno and even a few extra ponies that PZ has extracted, he's still not loosing 25% even with his tip 4 mo.

You see very similar results on the 3.2 B7 dyno I dissected. The Official B7 A4 Dyno Thread

But since Saturn wasn't in it's 4th phase and it was a day that ended in 'y' I was completely out to lunch according to the 'experts' in the B7 forum :crazy: