- Joined
- Nov 10, 2003
- Location
- Nora / Sweden
Cool, you can modify the distributor to have less total advance if you want a little more midrange power, that way you can run higher base timing and still dont get way to advanced at higher rpm.
That will give you a more responsive engine and a little more torqe below 4k rpm.
Higher max ignition then 30 degrees give you no more power at all, only cooler sounds when banging the revlimiter and knocking issues.
With and H-cam it is really easy to get high rpm knock, not just where the engine makes the most cylinder pressure, that kind of knock is really hard to hear.
The H-cam is the only one allowed in VOC rallycars here in sweden so we have put ALOT of hours in at the dyno testing. About 160-165 hp is about where we end up with a stock B23 (H-cam, GT 60mm exhaust) with just a really good rebuild keeping to volvos max tolerances and many hours of testing.
That will give you a more responsive engine and a little more torqe below 4k rpm.
Higher max ignition then 30 degrees give you no more power at all, only cooler sounds when banging the revlimiter and knocking issues.
With and H-cam it is really easy to get high rpm knock, not just where the engine makes the most cylinder pressure, that kind of knock is really hard to hear.
The H-cam is the only one allowed in VOC rallycars here in sweden so we have put ALOT of hours in at the dyno testing. About 160-165 hp is about where we end up with a stock B23 (H-cam, GT 60mm exhaust) with just a really good rebuild keeping to volvos max tolerances and many hours of testing.