Lee Scatt
Crash-test pilot
- Joined
- Jun 20, 2007
- Messages
- 944
- Location
- Satellite Beach, FL USA
- Aircraft
- Bensen/BMW R-1100 (under construction)
- Total Flight Time
- 500+
I have access to a low mileage subject engine.
The dyno curve looks encouraging, looks like about 140 lb/ft at 3000 rpm, stays basically flat till about 5200 rpm where the hp curve crosses it at about142 each. The hp increases steadily to a redline of 6450 rpm.
All aluminium, very compact, 4 cyl inline with same o.a. legth of VW.
GM bolt on supercharger. Boost's output to 200 hp.
I would like to hear any and all thoughts as to psru gearing, power band utilization etc.
I haven't found a weight for it yet, but will have it unbolted from the tranny and weighed soon.
There is a counterbalancing shaft or possibly shafts, which smooth out the inherent vertical unbalance.
I have read where this shaft was removed in ultra high performance use, to save weight and unnecessary rotating mass. I feel the extra weight could be justified for a smoother running engine.
I'd like to power a tandem with one.
The dyno curve looks encouraging, looks like about 140 lb/ft at 3000 rpm, stays basically flat till about 5200 rpm where the hp curve crosses it at about142 each. The hp increases steadily to a redline of 6450 rpm.
All aluminium, very compact, 4 cyl inline with same o.a. legth of VW.
GM bolt on supercharger. Boost's output to 200 hp.
I would like to hear any and all thoughts as to psru gearing, power band utilization etc.
I haven't found a weight for it yet, but will have it unbolted from the tranny and weighed soon.
There is a counterbalancing shaft or possibly shafts, which smooth out the inherent vertical unbalance.
I have read where this shaft was removed in ultra high performance use, to save weight and unnecessary rotating mass. I feel the extra weight could be justified for a smoother running engine.
I'd like to power a tandem with one.