The first RC51 Engine I've made and which was on the
dyno,still with original Cams.
Moreless done: Pistons,porting,Titan-Exhaust in 1,Airbox and HRC-ECU :
The Rearwheel Output of a std.RC51 is on this dyno at 122 hp
Durbahn clutch Basket
Massive handling and accelaration improvement :
The Clutch Basket I've made,really
Improvement-dropped the weight from 1930 gr to 1190gr.
If you use the Aluminum clutch plates from Hyperplates too,you'll have the clutch assembly for 2.8 kg instead of 4.2 kg.On the dyno they've measured here in Germany btw.1.4 hp more. It's incredible and hard to undertand,the first Time on road with my new Engine I've noticed a MUCH better shifting,much more exact,faster.....this must be effected by the clutch basket.
A Comment :
Contact me for price and Timetable
The trick Race (aggressive road
) Alternator Version II:
Update August 2007 : Installation Manual written Josh Kaufmann - click here
after testing 2 years on my and a friends Bike I decided to fab the max. lowweight alternator-Version,where I again have decreased the rotor partition ,from former 2lbs down to ~ 1lbs !! So,a 50% weight decrease !! Available !.
this Alternator is designed for race and road riding in aggressive
click on Thumbnails to enlarge
The whole Alternator -assy mounted into Alternator Cover :
Rotor-Comparison , 2.0 vs 4.9 lbs :
Stator comparison 1.4 vs. 2.9 lbs :
Rectifier comparison , 0.26 vs. 1.25 lbs:
from www.Teamapacheracing.com :
Thanks for the parts. I can't believe what a difference the superlight
alternator mod. made. The throttle response is unbelievable! I raced at Road
Atlanta this past weekend and I'm finally faster on the RC51 than on my R6.
I got a third in the Heavyweight Twin Superbike Class. "
from Geronimo A. , Domenican Republic (after installing Clutch basket and Alternator)
........so, the whole Assy is at 1669 gr, thats 3.68 lbs ,compared to OEM 4059 gr (8.96 lbs).
The rotating partition is reduced 1.3 kg ! That's a reduction of 59 % . But much more important is the reduction of rotating inertia .Because the rotor is half diameter,the whole rotating inertia is reduced ,a raw calculation : 83 % !!! The ediotor of a sportsbike Magazine has asked me,after a few laps on track,if I've got a slipper-clutch,which I answered :"No". As the motor spins up much easier and faster through throttle it also spins up easier,when you shift down and the engine has to raise in rpm . Imagine the heavy stock rotor has to spin up maybe 3000 rpm in a quarter of second........
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There are also soon - as far as I remenber it - 4 very trick Alternators-Assy's possible to built,same concept as on my Bike (well I unfortunately still have not posted the Pics here) , which means a fully outside turning Alternator , where the crank is sealed against outside . This looks very trick and special,you just have to imagine,that the OEM Alternator-cover has a height of 85 mm ( 3.4") and the Alternator-cover I've made,which moreless now is a crankcase-cover, has only 12.5 mm (0.5 "). Moreless I'm somehow proud to say,that a System like this is tested , because I'm running this trick outside turning Alternator-concept on my RC30 since 1995,close to 30000 miles ,90% road driven- and still with the first sealing !
Rods weight equalizing
Some Pics I've shot February,when I put the std. Conrods on the scale,has been more than 6 gr. imbalance,pics here-before I startet to balance them !
The weight Total::
big bore side:
small bore side:
More content soon,with lot's of hint's,used and new and HRC-Parts Sections,Prices,Pics,recommendations.......
Slipper -Clutch hub Assy
Price and Time to deliver :contact me
Combustion Chamber re-work
this is the begining,I've marked spots around valve Seat,where are very hard edges caused by milling to bring the seats in. You have to be very careful there,not to touch the seat itself.
That's the result after polishing :
available now,forged by Mahle,Germany.
I've heard a lot good things about these Pistons past 2 years ,from customers and Racing-Teams which have used them and still use them without any Problems reg. reliability and with great success concerning Hp increase and not burning Oil after a short Time as HRC. I've put them on the scale: 1st: they are very balanced,I've measured only 1/10 gr imbalance (thats 0.0002207 lbs) and they are very light ,as I've measured 385 gr compared to 423 gr std.,without piston -Bolt. Because the Bolt is much smaller I think It's another 20 gr less,so saves up to 60 gr,that's double of weight saving of HRC. They come with piston-rings,piston-Bolt and clips.The Piston-surface shape and compression-ratio is identically to HRC,but the Price is much less at same Quality at least.
€/$ : 795
Camdrives Quitening gears removal: 100$
Primary+Clutchgear grind down-Job (12mm)
Turned Big breather gasket Alloy 22mm dia.-for front valve cover : 484 mm2 instad of 169 mm2 std.
.........your Engine should'nt be a Compressor
General Parts'n Prices Section