E30 top speed limiter

[ForcedFirebird]

Interesting that this thread was brought up yesterday - and we happen to go to the dyno again last night (up to 87 pulls with this same car!). We did a few top speed runs to see how fast the car is capable of going at Daytona. In 4th gear, 3.73, 6500 limiter, 205/50-15 tires, top speed in 4th was 115mph (indicated 130mph on speedo) and in 5th, top speed was 144mph (indicated over 150 on speedo). The OEM rev limiter is 6250, so no one with a stock chip and near stock tire size is going 150mph.

Tires are .1" shorter than 195/60-15 and .9" shorter than 195/65-15 so the speedo should read a little higher, naturally, but this shows you just how inaccurate the speedo really is.

[nando]

it depends on the car - mine's pretty accurate, but I calibrated it. :D

[ForcedFirebird]

it depends on the car - mine's pretty accurate, but I calibrated it. :D

Still. At 6500 the speed was 144mph with a 3.73. People in this thread think their stock car was going over that, and unless the limiter was raised, have a different tire size, or have a different ratio, they were not going that fast ;)