Quote:
Originally Posted by Adam68
Hi Frank,
Would you see a decent RWHP increase from one of these fast kits? I currently have a 540BB with 305 cnc AFR heads Dart block 9.5-1 comp etc and it has a quick fuel carb which has been set up well. the motor made 700 flywheel and is making 471RWHP in my car in Australia a few weeks ago. I was looking for a way to get around 550-600 rwhp. the motor has been built for nos and it made 870 flywheel with a 150 shot but nos is illegal on street cars in Australia.
Regards
Adam
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Torque (especially down low) will come up with an efi swap, but HP shouldn't be much different if at all, assuming the carb is sized and tuned correctly. What efi will give you is better driveability, better mileage, easier to make tuning changes, etc. If your engine made a true 700 hp on an engine dyno there must be something different in the car config to get such a large drop in power on a chassis dyno. Was it dynoed without any accessories, open exhaust, etc? It sounds like there's something different in the two setups, like it was dynoed with open headers or a large free-flowing exhaust and the car has restrictive mufflers and a small exhaust, or maybe a small restrictive air filter, etc.
Jody