Top speed question

[Horrgakx]

After reading a couple of threads I don't have an answer so here's my question...
What will a 1999 E55 AMG do, if delimited, top end?

The reason I asked is that on a well known location in Leicestershire I managed to max mine out. I've read that it is limited electronically to 155mph, the speedo was reading 161/162 ish before hitting the electronic limiter. I know that speedo's will over-read but at a steady GPS reading of 60mph the speedo shows 61. It seems linear after that so I don't understand why it should be out at that speed.

Any comments?

 

[PXW]

is the limiter perhaps not exactly accurate to 155mph? Also entirely possible that your 1mph error reading at 60 mph translates into something far greater at 150+.

I assume the well-known location in Leicestershire is Mallory Park or Bruntingthorpe or similar.....

 

[EDZ649]

According to some people they will do about 185 MPH when de-limited.

 

[Sp!ke]

I'd say that was pretty linear.

If your speedo was 2mph out at 60mph the percentage difference when multiplied by 161 would equate to precisely 155mph.

 

[Horrgakx]

Thanks for the replies. I don't think I'll bother having it delimited, just interested more than anything. After all how often will you get to 180ish...?

 

[Bobby Dazzler]

178 mph assuming the following is still correct 11 years on:

engine power (at the flywheel) 349 BHP
engine power (at the wheels) 286 BHP
engine power (at the wheels) 213 kW
vehicle track 1.560 m
vehicle height 1.445 m
maximum vehicle cross section 2.03 m*m
vehicle mass (weight) (kg) 1715 kg
air density 1.202 kg/(m*m*m)
drag coefficient 0.29
headwind speed 0 m/s
gradient angle 0 degrees
gradient angle 0 radians
rolling resistance coefficient (tarmac) 0.025