whats left for engine mods anymore - Honda RC51 Forum : RC51 Motorcycle Forums
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post #1 of 16 (permalink) Old 03-18-2013, 04:45 PM Thread Starter
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whats left for engine mods anymore

been out of work.. and tryin to do some extensive research on what still might be remotely available anymore.. ive looked into camshafts. but cant find any valve springs.. wiseco pistons more compression.. but i dont want that without bigger cams. found flywheel lightening. but thats just blow the rear tire off. (hard enough to keep one on over 3500 miles anyways). dont think i really want an airbox.
so... what is left out there without costing an arm and a leg or gettin one off reproductions?
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post #2 of 16 (permalink) Old 03-18-2013, 05:26 PM
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if you want bigger cams you could go for kent cams? take it youve done the usual sprocket, pair and flapper mods?

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post #3 of 16 (permalink) Old 03-18-2013, 06:32 PM
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According to two different sources, I bought the last two sets of HRC valve springs in the world earlier this year. And they were located in Belgium of all places.
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post #4 of 16 (permalink) Old 03-18-2013, 06:44 PM
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How about dumping $$$ into your suspension?...

John, 2000 RC51 #000100

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post #5 of 16 (permalink) Old 03-18-2013, 07:53 PM
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How about dumping $$$ into your suspension?...
++100000000 as one who has chased horsepower and built some grenades suspension is always dead reliable, it also increases confidence with less drama and losing unsprung weight can be a little pricey but will return dividends without being unreliable.



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post #6 of 16 (permalink) Old 03-18-2013, 08:04 PM
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According to two different sources, I bought the last two sets of HRC valve springs in the world earlier this year. And they were located in Belgium of all places.
And... when you have kibblewhite replicate them.... my name is first on that list of people to get some.... right my good friend Sub ??? !!!

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post #7 of 16 (permalink) Old 03-18-2013, 08:28 PM Thread Starter
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I did find that webcamshafts has some hardweld cams.. and they have the springs also. But dont have retainers and locks. As far as suspensions goes. Id like to do the kyle limk.. and redo the forks.. and loose some weight would be great.. ive been looking at wheels. But out of my price range unless i found some of a cbr that could be made to fit..
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post #8 of 16 (permalink) Old 03-18-2013, 09:22 PM
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You've perhaps just answered your own question. Custom engine upgrades will likely cost more than you may be willing to spend as custom parts would need to be made, etc. Plus there may be reduction in reliability when increasing rev limit & valve lift. It costs big money to get high power from these engines and things will probably break in the course of using them.

These bikes aren't about making top power, nor will they be competitive against newer more powerful factory bikes on the track in a straight line. They're about handling, feel and character.
Spend your money on quality suspension upgrades and lightweight wheels, which will pay better dividends than chasing higher power figures. Just my $0.02 worth.

Euro RC51 SP2: HRC WSB Ti Hi-Level, T1 Airbox & Snorkel, PCIII, Dymag CA5 Carbon Wheels, Ti64 Spindles (F, R & Swing Arm), Mori Link, Maxton GP7 Shock & Ohlins 832 Forks, Brembo GP Calipers & SBK narrow track (F), Braketech Disc (R), Brembo billet Underslung x 2 Brembo RCS, Tyga Triple, 7075 Stem, Probolt Titanium all over, Babyface rearsets, MR Complete Carbon Lineup, Custom Undertail & CBR 1000 LED, Watsen LED Indicators, Harris Brace, Giles clip-ons, Corbin seat, etc. 2013 BOTY.
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post #9 of 16 (permalink) Old 03-18-2013, 09:41 PM Thread Starter
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Thats my idea.. but i would.like to have just a little bit more than what everyone else has.. see my signature.. that a trx450r.. bored and stroked.. ive had a 300ex/ 406.. amd a trx250r/330r.. and 499dodge dart into a 451 nitrous street car.. and i just built my sons lil saturn.. shaved the head .040 and ported.. this is the only thing ive owned that hasnt been touched.. its just my style.. lol..
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post #10 of 16 (permalink) Old 03-18-2013, 10:10 PM
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I've got tuned cars too, but I've got no temptation to tune the engine in the RC51 for reasons explained. But respectfully each to their own... Be sure to share your trials & tribulations with us if you do.

Euro RC51 SP2: HRC WSB Ti Hi-Level, T1 Airbox & Snorkel, PCIII, Dymag CA5 Carbon Wheels, Ti64 Spindles (F, R & Swing Arm), Mori Link, Maxton GP7 Shock & Ohlins 832 Forks, Brembo GP Calipers & SBK narrow track (F), Braketech Disc (R), Brembo billet Underslung x 2 Brembo RCS, Tyga Triple, 7075 Stem, Probolt Titanium all over, Babyface rearsets, MR Complete Carbon Lineup, Custom Undertail & CBR 1000 LED, Watsen LED Indicators, Harris Brace, Giles clip-ons, Corbin seat, etc. 2013 BOTY.
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