Hello my fellow WoN users !!
I've got a nice fresh engine fitted now.
I knacked the old block due to a stupid hasty mistake in setting the nitrous contoller. DOH!!!
So for this build I've gone the whole hog and fitted heads with bigger valves and bigger ports. Its still a Rover V8 because I know that these old engines can make good power on the 1/4 mile.
I've also been spending my birthday money on some tuning parts. I can now log afr on both banks of the engine as well as manifold pressure and rpm. And the logging system can be expanded with EGT sensors and most importantly I can set alarm limits to shut stuff down or turn stuff on.
We took the car out last saturday to see how this was going to work. I have to admit that I got engrossed in the whole data logging experience. It showed up a good few useful bits of info. We did 7 passes while fiddling with the engine and data logs.
Long story short:
Previous PB on 12psi of boost and a 150 shot was 10.2 seconds with a 60 foot of 1.4 seconds. Previous PB on 12 psi of boost alone was 11.8 seconds. For my last shakedown run on Saturday I gave it the beans off the line with a max boost shown on the log of 6.8 psi. She ran a nice easy 11.2 seconds with a 60 foot of 1.6 seconds
So I think I'm going in the right direction.
If I can break the 10's with a bit more boost (I only need another 0.3) I hope that the nitrous will take me into the 9's next season. I cant see any reason why it wouldnt?? The nitrous has been the thing that pulled me from 11.8 to 10.2 on the 1/4 mile. On boost alone the engines work well but always seems to hit a flat spot in the rev range at full power. Especially when the blower gets heat soaked. The won stuff makes the engine come alive just when I need it to
Why oh why do all our good results seem to turn up as the weather is getting worse and the season is almost ending, just when we want that extra day or two on track? GGRRRRR !!!
I'm now going to be itching all winter waiting for the good weather next season..
Perry
