|
No that’s definitely not the case. Putting aside the dyno results, other engine was just incredible, and I felt like I was riding a super bike. My current car is 250 lbs lighter and it is fast but it doesn’t have that same high rev power.
I started thinking more about the cam difference. The GE80 cam is supposed to have more power than the RSR sprint cams according to a few cam manufacturers, which is probably based on the belief that the engine can take advantage of the higher intake and exhaust lift.
However, the Sprint cam seems to have more intake and exhaust duration than the GE80 cam which also can give rise to power at higher revs. I wonder if the power difference in the engines could be related to the fact that the modified 2.7 heads couldn’t take full advantage of the lift but did benefit from the longer duration of the sprint cams?
Here’s a comparison of the 2 cams from Anderson’s book:
Engine 1 cam specs (RSR sprint): intake lift- 11.79, intake duration 278, exhaust lift 11.43, exhaust duration 267
Engine 2 cam specs (GE80): intake lift 12.70, intake duration 274, exhaust lift 11.94, exhaust duration 256
|