550i Dyno Results

Reply Subscribe

Thread Tools

Search this Thread

12-20-2007 | 12:12 AM

#21

AlexFW

Senior Members

Joined: Sep 2005

Posts: 4,096

Likes: 0

From: Italy, Milano

My Ride: 545i SMG with Limited Slip Differential

Model Year: 2005

Quote:

Originally Posted by Torquey5' post='508119' date='Dec 18 2007, 05:53 PM

Relax, he was only messing around

He can go to mess around with someone else, joking about the 535d that goes from 0 to 250kmh in 40 seconds (remapped) - stock I guess it needs 10-15 minutes .

Quote:

But back to topic, I should really dyno my car before I return the lease.

I should too, to find out how many HP come from the mods . I bet 30-35 .

Reply Like

12-20-2007 | 04:57 PM

#22

AlB

Thread Starter

Senior Members

Joined: Feb 2007

Posts: 333

Likes: 0

From: Richmond, VA

Quote:

Originally Posted by 525iEnjoy' post='508645' date='Dec 19 2007, 10:25 PM

297 is a great base number. its about what stock Camaro & Pontiac put down in their hayday. Gto's put about 342-360 but weigh 4,000. The tune or "remap" is what these cars need. The AF doesnt hit 13.3 until high are rpms which means they're protecting the motor by fattening it up. I'm pretty sure if the AF stayed in the 13.4 range all the way through numbers would be better. you wont have much power when your putting 6 and 7 speed autos behind a engine.

The added fuel up top was also described as a safety measure by my dyno guy.

I grew up in the muscle car age. Back in the day, the cars just seemed fast. A 14 second car was about the best time most of the muscle cars could put down. I owned a 67 GTO. It was 335 hp at the crank. With the Quadrajet carb sucking air and the exhaust howling at 5,000rpms, it sounded like it was going about to rip thru the sound barrier. All that sound and so little speed -lol. The 550i is a faster car. Plus, it has an added feature. It will STOP.

al

Reply Like