RC-51, BMC, fuel injection, tuning, factory pro, carburetor, shift, ignition

Transmission

Trans Detent Spring Kit

Honda RC-51 / VTR 1000 SP-1, 00-06
Shift STAR Kit
SHFT-EVO-H51
$199.95

International buyers will be billed additional $18 for shipping.

EVO-7 Shift STAR Kit

Imagine
Last lap, last corner, 110 mph, two wheel drift... passing on the outside, bike carefully controlled by just the subtlest of weight transfer and just a "fingertip touch" on the throttle... you run out of rpm and need to upshift to complete the pass.... you need to shift.... it's ok.... a tap and you are in the 4th, still in a drift....... you keep slightly pulling... around.... slowly past....
you win.

It's everything that I ever wanted to do to a shift mechanism -
Slightly stronger detent spring - a new MicroBearing detent arm and the final piece... A completely redesigned, empirically refined, multi angled, variable radii, repeaked and valleyed:
EVO-7 Shift STAR
This part will totally change the feel of the bike as a whole. The shifting effort is lighter - and the speed at which the gears actually engage is dramatically improved - Quicker, easier, shifting -

A "twitch" on the lever and the throttle and you are in the next gear! Perfect for track use and road riding for effortless downshifts into a corner and just a "tap" to upshift without any more than a "twitch" off the throttle -

That's not even mentioning that missed shifts virtually disappear.

In town? Low rpm cruise in second - shift to third? So quick and smooth that it will surprise and amaze - NO more clunky, lazy shifting in town - As I said - it's totally different and improved -

Proven concept - Virtually all the Factory Pro Support riders in the AMA and WERA multi- Champions Vesrah Racing tested and proved the EVO-7 Shift STARS in 2003-2005.

Stock shift performance that everybody used to take as a "given" will be regarded as "slow and lazy" after riding an RC-51/ SP-1/2 or VTR1000 with this kit -

Kit includes a new detent arm with a low friction microbearing roller, a performance shift spring and the NEW Factory Pro EVO Detent Star.

Make shifting MUCH quicker and virtually eliminate missed shifts.

Just remove countershaft sprocket, water pump and shift mechanism cover.

Installation:
Remove right side clutch cover.
Remove clutch assembly (impact wrench and 30mm socket)
Install new EVO Shift STAR, Microbearing Detent Arm and and Factory Pro Detent Spring.
Reinstall clutch and cover.
No case splitting required!

Estimated install: 1 hour, if you are super quick and have all the tools laid out.
1.5 - 2.5 hours at normal human speeds and what we would charge for in our shop.
3-4 hours if you are a "working hobbyist" and have impact and sockets.
6-8 hours to a week if you are a journalist and not on a deadline.
And 1-2 months if you let me do it.
:-)

2008 Sept

Dear Marc,

Hey, got a shift star kit for my RC51 from you a while back and finally got around to installing it... wow! It works great, and no more pesky phantom neutrals!! Thanks a lot! noble823

2008 March
Thank you very much fellas. I got one of your kits last year + ive only just ridden the bike after winter rebuild. What a difference, gear change is super quick + precise. Feels like a different bike. Considering a stronger spring is fitted, to me it feels much lighter, the action is so slick. I'm over the moon. Bike is rc51+ I'd recommend this mod 100%. Best wishes + regards, Gary Waller [UK]

Carburetion / FI modifier

Click here to be on waiting list

In progress
research

Air Filters, Street and Race series

BMC air filter systems
FI-BMC-24116S
$69.95 Special!

Designed by the same Italian craftsmen that developed Ferrari's F1 Air Filters - this filter filters well, the and flows same as the stock air filter, as you can see on the below chart.
Also - note that the actual mixture, shown by reliable CO% readings (not unreliable "A/F Ratio" "readings), does NOT get richer as some other people with ulterior motives may tell you......
Not designed for a power increase - just cleanable -
Cleanable BMC air filter systems (avail. direct from Factory Pro) for more power - click here for more information.

True Rear Wheel Horsepower scale - difference between other scales.

Click to view.

BMC air filter systems
FI-BMC-24116R

Limited numbers of BMC RC51 filters have arrived.
Designed by the same Italian craftsmen that developed Ferrari's F1 Air Filters - this filter filters well, flows more air and lets the engine make more power than the stock air filter. Remapping is suggested for best performance.
The biggest restriction on the RC51 is the actual airbox design and not the filter -
Cleanable BMC air filter systems (avail. direct from Factory Pro) for more power - click here for more information.

True Rear Wheel Horsepower scale - difference between other scales.

As installed on a 2003 RC51
The plastic mounting tabs may be elongated by filing with a fine file for best fit.
The problem seems to be related to the difficulty in controlling the absolute overall length of a fabric constructed air filter.

Spark plugs

Spark Plugs,
Denso

xxxETR-U - Standard replacement plug from the largest supplier of electronic components to the MC industry in the world. - Standard replacement plug from the largest supplier of electronic components to the MC industry in the world.

~$3.00

xxxETR-ZU - Premium, Platinum, U Groove spark plug.
It is recommended to start a tuning session with new spark plugs.ZU - Premium, Platinum, U Groove spark plug.
It is recommended to start a tuning session with new spark plugs.

~$10.00

Denso (ND, Nippon Denso) is the largest OEM supplier for autos and motorcycles of electrical components in the world. Sometimes, people forget that Denso makes pretty darn good spark plugs, too! Wide heat range properties discourage plug fouling at low speed AND overheating at high speed.
We have been using Denso spark plugs in our AMA Supersport bikes since Denso was Nippon Denso and ND. We have found that some standard, <$10, off the shelf, Denso spark plugs work as well as $125 special spark plugs - on a professional roadrace level!
Codes:
X = 12mm thread w/ 18mm hex
27 = Heat range. (Hint - it is ~3x NGK #. I.E. an "9" heat range in NGK)
E = 3/4" reach
P = Projected tip type plug or
T = Dual ground electrodes
R = Resister type internal construction
Z = Thin platinum center electrode w/ tapered ground (side) electrode
U = "U Groove" side electrode for better spark and finally..
9 = is "pregapped" at .9mm (You should check any "pregapped" plug before you install it..)

True Rear Wheel Horsepower� Factory EC997a Eddy Current Dynamometer

Theory:
"Using 2 short STOCK intake velocity stacks, instead of 1 long and 1 short will add 2 True HP to the upper mid and high rpm at the expense of 2 TRUE HP in the low / lower midrange"

Reality:
That's what worked very well on the VTR1000's and we never tested it or did it on the RC51 - so - unless you know better, you are on your own -
Remember - if you change camshafts - the optimum intake tract WILL change, without any doubt at all!
I think that we will be doing some testing on airbox mods in the near future (late August 2004... I can see that that estimate has passed...... :-) Marc

The Shift STAR will make shifting so slick you'll think you have a new bike......


The infamous HRC Programmable ECU with Adjuster box and endurance harness.