Right now my feelings are like this as far as Autobacs chassis goes.
'08 Models 520hp
'11 Weider 510hp
'12 HSV's 500hp
(Still need to test '06 Nismo Z & '08 NSX's)
The Hsv's are clearly way faster than the pack and with the high corner speeds they make it up for the loss in hp. The more sluggish '08 models using the extra 20 hp get out the corners better so the high corner speed of the HSV's are equalized. We're going to try as far off as 30hp and then take both results from Trail Mountain Rev to Monza, Fuji, Daytona Road, and Indy and see how the lower hp does at the high speed tracks. I still expect the HSV's to keep up in a straight line because they will always be taking the last turn with a higher rate of speed. And with all this said which ever it may be I'm still picking the HSV'
This also free's up full success ballast with all cars weighing in at the same kg. Also heavy kg is cutting it as much as hp loss does Imo. These are my 1st entry base reg's and not my final feelings on them, ultimately we will need to do pack racing in the end.