This might be a silly question but I have a stage 4 in my 103 street bob, its dynoed at about 118wrhp and thats cool but I miss the refinment of the stock set up. I assume its lumpy idle and raw manners are due to the cam (SE259E going by the brochure) in the kit, is that correct? If so is there a cam that I could replace it with to get back some of that smoothness? I realise I'd have to sacrifice HP but thats cool, or is only the SE cam going to work with the stage 4 set up?
Thanks :o)
hi paul , you have very good hp figures for the 259e cam , your intake and exhaust must be all very happy together , you need the company who fitted the kit to give you all of the items listed , cams , pistons , head gaskets, etc, info before makeing decision of another cam paul ,
Thanks, the bike is 6 weeks old with only 4000ks on it so its practically new, so the engine mounts should be Aokay. Its the standard pro stage 4 I'm pretty sure, M&W here in Brisbane installed it. I guess that's so true about it all working together. Where can I get these TW-777 cams? can they just go straight in? of course the bike would have to be dyno tuned again, but are these cams just plug and play with this kit? If the TW-555 or TW-777 smooth it out great, more bottom end bonus, can never have enough low end grunt.
These guys are good:
http://www.fuelmotousa.com/performance-cams.html
Did you get a print out of your dyno sheet ?
Don't jump in to anything before doing some more research.
I wouldn't like to say plug/play, you'd probably need adjustable pushrods. But still a simple install for anyone with the knowledge.
I really have to question your tuner, as I really doubt torque cones will help much at all, but I guess they are cheap. What exhaust are you using ? Maybe Dynoharley has done some back to back testing with them ?
http://www.nrhsperformance.com/tech_arcones.shtml
Why are you mentioning going back to stage 1 ? By using a different cam with what you have, you may loose some HP up top, but you will gain down low, and smooth things out a little.
I'd still like to see your Dyno sheet.
Hilly, the current Stg4 don't use the big heads anymore:
From the SE catalogue:
"oversized (1.875" stainless steel intake valves and stock (1.575" stainless steel exhaust valves "