BSP 3 or 4 cam

[TEAM580]

What the advantage of the BSP 4 over the BSP 3 (which I have good luck with)

 

[OVALTECH1]

I’ve heard that there is a bit more power in the mid and upper rev range with about 400 more rpm available. Hopefully Chris will chime in he’s been testing the daylights outta these cams.

 

[Big Chris]

Cam testing


See link above to dyno data. The BSP4 makes power higher in the rpm range than the BSP3 does. The BSP3 falls off after 5600-5800 rpm.

I want to say that the BSP3 was circa 2014/2015 (could be wrong there) and since then the effort has been to ever increase the usable rpm range with 10.8 lbs springs. Back in its day, the BSP3 was a good cam, but continued development has rendered it obsolete.

There are two separate pulls on the BSP4, one with a 111° ILC install and another at a 113° ILC install.