- Location
- Oklahoma
I've had a r&d head, which came off of a 750sxi, sitting on my parts shelf for a few years and now I wanna put it on my sxr, but I'm not sure how much it will raise comp... It's marked as being 26cc domes. I'm currently running a stock bore/stroke motor, stock carbs rejetted for the factory wet pipe I have on it, vforce 3 reeds, tau ceti flame arrestors, ATP waterbox, '06 electronics with timing advance jumper, lightened TL stock flywheel... I'm at about 1400', I took a compression test and it showed 145 up front and 144 in rear, this was on a cold motor tho. I would like to run 91 octane so I'm thinking this head may be too aggressive for me. Anyone have any idea how much it would raise compression and how much I could go and still run pump gas? Any info would be great, thanks