I took my 3 cars to an open piece of road and did some testing!
All on the same day, same conditions, same fuel and same driver.
All 3 cars I used launch control.
Car specs :
BMW M6 - Hartge decat and akrapovic - +- 500kw 900nm
GTR R35 2013 build - Ypipe - cobb stage 1 +- 440kw 730nm
Merc SL 63AMG - Stock but with performance pack and drivers pack - 415kw 900nm
These were all tested from standstil using launch and over 400m. Will do more testing with rolling from 80km/h and also zero to 800m.
Best officail times at Tarlton and ODi international raceway: (these are best times and speeds from both)
M6 11.3 at 212km/h
GTR 11.3 at 198km/h
SL63 11.9 at 200km/h
http://www.6post.com/forums/attachme...1&d=1385717786
http://www.6post.com/forums/attachme...1&d=1385717968