- 477
- Perti78
- Perti78
Well after continuing my frustration with the black edition gtr, I finally got it right. The problem was I was tuning without brake in. The fastest without at 897bhp was 9.068, did the break in and it dropped to 8.951 at 945. I change oil at 200miles, so will do a refresh on it tonight and at 300miles will do engine rebuild to make the 954bhp that people claim.