I'm thinking ahead to what I'd like to do to the bike this winter for upgrades. Bike is on 06 roadglide. Currently has freeflowing air filter and VH Pro pipe on it. I'd like a bump in power and would plan to do the work myself. I'm thinking up the displacement to 95 or 97" and change out the stock cams for geardrive units if the runout allows. Currently 20k miles on bike.
I'm looking for advise on what brand of jugs/pistons or anything in particular to stay away from,
What will I need for special tools? Beyond access to hydraulic press, what specialty tools need to be purchased?
Advise on what cam setup to use, I do a lot of 2 up riding, neither of us is too heavy, I'm about 205, wife about 140, I do like a long road trip about once a year, absolutely must keep bike as reliable as stock. We will load up the tourpack and have tent, etc loaded up, that's when you really wished you had more power--
What are these cam/bore combos going to do to fuel economy? I don't ride to save money, but I sure do appreciate that the wife and I can put $15 in the tank and have a decent afternoons ride for that vs have a musclecar at 10mpg and premium fuel.
Compression ratio--Mr Hillside cycle often mentions bumping compression to 9.6:1 for Andrews 26 cams and maybe others with larger bores. Is 9.6:1 reaching a point where it will be hard on starter? How about if I stop for gas in the middle of nowhere and all that is available is 87 (or 85 at higher elevations) Currently I've been filling with 87 and have no issues, everyso often I put in 91 and don't feel or hear a difference.
Lastly, what might I be able to expect on a dyno with a 95/97", intake filter, pro pipe, and cams of the Andrews 21/26/37 range, or S&S 509/510 range? Is there any significant power gain from gear vs chain cams? How bout keeping stock compression or raising it to 9.6/9.8:1?
OEM cylinders are absolutely fine to bore to 98". 9.8-10.0 is where the 37 wants it, depending on the application.
Been boring HD cylinders here for over 2 1/2 decades and have been boring the OE T/C's to that bore dimension since 2006.
Can't remember the last time we bored to 95" (94.3" actually)
An S&S .510 won't have the "hit" off the bottom like either of the Andrews cam, or like a Wood 6 cam set @ 10.25, as live testing years ago here has proven.
R&R Cycle in Manchester, NH recently tuned a 98" of ours with an Andrews 37 @ 10.0 in a Dyna. 51mm HPI t.body, our famous Stage II Heads, and a Bassani pipe.
108/111 sae. Not the first time we've seen that.
Andrews Products wants a copy of that dyno report.
9.6 is right where an Andrews 26 wants to be for pump gas friendly running.