When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
If you want good reliable power, get your cyclinders bored to 95", get a good set of pistons that keep your compression in the 10:1 range, couple this with a good set of cams (Andrews, Woods, SE's, etc...) air cleaner,and a decent exhaust with a good tune/tuner and then leave it alone.
If you want best bang for your buck - do not go any further and let your seat of the pants dyno decide if you're happy rather than chasing numbers. If you like your stocker now if you do the above upgrades for I'd say 2K max you'll have the biggest smile on your face you ever had and also have a good reliable easy starting bike for lots more miles.
This should put you in the mid 90's by the way - but you start chasing those last 15-20hp getting into headwork, case boring, crank, lifters, throttle body, clutch - believe me have your wallet ready!!
Agree with this almost completely but I would go ahead and do mild headwork when the heads are off and much can be gained for not a lot of money on a '99 as far as head work. Try a phone call or 2 to some forum sponsors to see what this might cost and whether or not you want to do the work yourself.
I'm anxiously awaiting my 88" build, one more week and it should be done.
My local INDY is doing 95" build, and is guaranteeing me 100+ HP/TQ when done. Ported heads, 585 SS cams, lifters, pistons, MCR, camplate/ pump upgrade and Dyno. I already have exhaust, AC, and PCV. I would either find a local INDY or check out FUEL MOTO. Good luck.
strip whole engine and stroke it, plus head and/or jug work with cams;
replace with a ready built engine.
I've done each of those with my Evo, from 80" to 89" and now 107". I currently have 101HP and 107TQ. Be warned, this is a never-ending challenge! I can now see the case for an even bigger engine, so don't hold back when you decide what to do!
I had an 04 RK that I wasn't happy with in the power dept. I went with pretty much a SE 95" 10:5:1 flap top forged piston set up with Andrews TW60 (560 lift) cams, SE race MCR heads, PCV tuner, 2:1 Thunderheader, SE adj. push rods. Cost me like $3200 inst with pipe. My bike dyno'd at 103RWHP and 102lbs of RWTQ. I must say I wanted more but the average dude would have been very happy. I've raced all my life and I like getting out of control on bikes, but I must say everyone that heard and saw me take off on the highway was amazed from a 95" kit. Great bang for the buck and I beat the living **** out of my bike and it ran hard and very reliable.
Now I have a 12 RGC i'm putting a TMAN stage 4 107 kit with ****lsyl 11:1 pistons, 660 lift TMAN hyd. cams, TMAN's stage 4 heads, PCV, 2:1 Thunderheader, TMAN stage 3 oil pump, S&S roller rockers, S&S adj pushrods, S&S lifters and clutch upgrade, 58mm TB with bigger injectors. I should be pushin middle 120'sRWHP but hoping around 130RWHP....
Good luck with what ever it is you go with bro......
Procharger.....about $5K and roughly doubles your hp on a stock engine...on my stock engine I was making 121hp and 108 ft-lbs of torque. Ran like a completely stock engine
7 Surprising Harley-Davidson Products that Are Not Motorcycles
Slideshow: The bar-and-shield logo shows up on far more than motorcycles, some of the company's most unexpected products have nothing to do with riding.
Slideshow: From the troubled AMF years to modern misfires, these bikes earned reputations for reliability issues, questionable engineering, or disappointing performance.
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Slideshow: The Swiss custom shop has taken a Harley Softail and stretched it into something so long and low that it looks closer to a rolling sculpture than a conventional motorcycle.
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Slideshow: A standard cruiser becomes an intricate metal canvas in the hands of a Swiss custom house known for pushing Harley-Davidson platforms far beyond their factory brief.
Slideshow: Harley-Davidson's challenges aren't abstract; they show up in dropping shipments, shrinking dealer traffic, and strategic decisions that aren't yet translating into growth.