Changes to my VMax : ARTICLE IN: |
On this 5th page the first results of the tuningwork on the VMax. But there's more to come! I picked up the VMax from Phillipe's MOTOTECH tuningshop, and drove it home, which took care of the first 300 km ( of the 2000 km I have to drive no faster than 120 km/h, with early upshifts and late backshifts, to let the engine run in ). After these 2000 km's I'll take the bike back to the workshop and Phillipe will adjust the valves and work on the carbs ( bigger jets etc). As you can imagine, it's a little disappointing, spending so much money on a bike and then not being able to go fast enough to get a speeding ticket!! The ultimate humiliation was, being overtaken by an elderly couple on a Pan European!!! But, it's all for a good cause. Below is a Dynosheet of the first - very careful - run. He didn't go over 5500 rpm, and already it's looks real strong. Red is original ( well, the way I brought it to his shop anyway ). At 5500 rpm it had 75.8 hp and 9.9 m-kg torque. Now it already has 89.1 hp and 11.7 m-kg just before letting go of the throttle, and as you can see, it all starts a lot earlier in the rev department!! This is on an engine with NO miles on it!! ( and as later appeared: the wrong camshafts!!! See update down below.)
The engine runs very smoothly, doesn't miss a beat. The high compression pistons make live hard on the startermotor and battery, so starting has to be done with the lights off, which means I had to put a switch in the wiring. The sound of the carbon DOMA's is awesome, the bike really growls! While the bike was at MOTOTECH, I had Phillipe install a new type of bottle in the new aluminum brackets I bought from Jean-Yves Vetsch some time ago. VETSCH Racing lock - up clutch in original clutch housing, seen through MEK's clear clutch cover. I will have the ring engraved and anodized this winter, so it doesn't look stock as it does now. Phillipe rerouted all the NOS switchgear - and pumps to a neat Stainless Steel plate under the tankdummy. Middle left is the HOLESHOT PERFORMANCE Electric Powershifter, which cuts the ignition 1/10 seconds so I can do full throttle upshifts. It is activated by a switch on the bars ( picture below) and a little switch on the gearlever ( picture below that). Bottom left, the controlbox for the shiftlight, which is located at the topright of the speedometer.On the lower right side of the baseplate is the revlimiter. He also relocated the fuelpump for the NOS system, to a saver place, out of the way of debris, under the fueltank. In addition to the framebracing of the lower subframe ( on page 4 ) he added the EXACTREP solid motormounts, which replace the rubbers between frame and engine with solid aluminum ones. This made an incredible difference!!! The Vmax does not sway or wobble at all in whatever corner I take. This might be the best " investment" of all the frame- and suspensionmods!!! In the picture below, the front right side top- and lower mount are shown ( the top one is behind the black strip of polyesther from the spoiler ). The left and right top bolts are replaced by a Stainless Steel bar, connecting the frame from right to left, which gives additional bracing. Below you can see the earthlead on the NOLOGY wires. As soon as I've completed the dreadfull 120 km/h 2000 km's I will take the bike to Phill's and when it's back, complete with Dynosheets the results will be on this ( or the next ) page. Update August 27 2000: As I mentioned in the text above the Dynosheet, MEGACYCLE sent - and Phillipe installed - the wrong type of camshafts. Phillipe couldn't figure out why there was not enough RHP, checked all the settings and finally started taking the engine apart. When removing the camshafts, he noticed they looked different from the ones he ordered. It appeared that the company had sent him the VMax camshafts the French use to upgrade their low BHP version of the VMax to a " full power " VMax. Phillipe now installed the original camshafts, which give 125.7 MaxRHP without- and 172.2 MaxRHP with NOS. (125.7 @ 7500 / 172.2 @ 8700 revs - 93.9 / 131.6 @ 5700 revs ) We are now waiting for the MEGACYCLE Stage 2 cams . Hope it will not be the same story as with the pistons. As soon as they arrive, I'll take the VMax to Phillipe's MOTOTECH to have them installed, have the carbs adjusted and have the bike Dynojetted to see whether that'll take care of the last missing BHP's. Update 31st December 2000: Well, as you've probably read on the "What's New" page, it's the end of December and the Megacycle cams still haven't arrived. How is it possible for a company to have it's customers waiting for such a long time. Update I've ordered a very cool, big attitude set of carbs from UFO PERFORMANCE in America: the VGas system. Supposed to add ABOUT 15 BHP in mid- and toprange on a standard VMax. Pictures below. Update 27th January 2001: The
carbs, intake manifolds etc. arrived this week, not even
3 weeks after ordering !!!!!! This means there are
manufacturers who care about their customers. Jon even
fitted the manifolds to a VMax in his shop and drilled
and tapped them for my NOS-nozzles. I assembled one set
and took some pictures.
WATCH IT, DON'T GET SUCKED IN : ))) BACK TO PAGE 1 , 2 , 3 , 4 OR TO PAGE 6 FOR THE FINAL RESULTS OF THE TUNING? PAINTJOB AND OTHER CHANGES ON PAGE 7, 8, 9 and 10 FOR JUST SOME PRETTY PICTURES, CLICK HERE
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