This is excellent information, but it seems pretty well targeted to race engine development. I have to side with Vince...a stock engine is probably better in most ways for the street. I'd love to see the dyno curves for these cam & flow mods.
Ace, love this thread! I think your thought on re-phasing the cams and using a 7.5:1 piston to develop about 25 HP is right in the ballpark. Now would this be HP measured at the rear wheel? This would be very streetable/reliable mod. Would you use aluminum barrel/piston set-up or standard? This would really be a vast improvement from stock considering the true HP to be under 22. All we need now is a technical note to explain the proper procedures to go about this in the right manner! Blltrdr
I just want to thank y'all for all of this great information regarding Bullet engine mods.I am so glad I did not jump in with zero knowledge,as usual,before I found this site.I have some mild sorting out to do just with the exhaust,carb enrichment.I am gonna do one small thing at a time,get that right before going ahead.I,too,have previous experience with mostly automobile engines,modifying them for basically the drag strip.Have actually found that wieght reduction is most productive coupled with gear reduction.Don't really apply here,much.I do not see a big potential here,anyway.But I am a hot rodder at heart and want all I can get that is reasonable.If one does the degree wheel check of the cam timing and finds that rephasing is out where do you go from there,is that very common?All the cam manufacturers say to do this and I've never seen a camshaft that was off.The shop I used to use never had either.They only dealt with the big 3 auto engines,circle track.I am really fascinated with this cam rephase,no doubt will do it but not till next winter.
Now how about that tech note for re-phasing the cams, Ace? Is that something you would be willing to do? I think there would be plenty of interest in this. Blltrdr
Yes', I'll do this as soon as I can get around to it.It's a big writing job, and I have to be real careful how I word it, so that we don't have half the people on the forum fucking up their engines because I didn't make something exactly clear.
I think Ace, Vince and some others have the knowlege to create or at least design the kinds of performance kits that we would ll really love. We will never beat the kid on the sport bike to the next stop light, but he will still envy the smile on our faces.
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