RE: 5th gear replacement - first report

[pkuyper]

Title: 5th gear replacement - first report

It is stock, but when I put it together I did measure every moving part and corrected the clearance for bearings etc. Also the cam gears are slotted and timed well. It just runs fast, but still I want to run it on a dyno bench sometime. But spare time is rare at the moment. Weight is less than standard, but that only is good for speeding up and slowing down.   Also it has fantastic aerodynamic features like the headlight fairing, lower fairing and rear spoiler (ha, ha!). See Ingo's pages on the Netherlands page.   8000rpm at 260km/h is reached, but it takes a while. Longer than I want actually. So I should "upgrade" to a 1700cc or more??  :-))   What also matters is that this is at sea level and at fairly low temperatures (15-25 degrees Centigrade). This makes that the engine can burn more fuel due to more oxygen in the air. But then again air is thicker at sea level so this slow you down, bla, bla, bla...   Patrick -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: donderdag 8 juni 2000 0:23 To: V-MAX TECH LIST Subject: Re: 5th gear replacement - first report Hi Patrick, Is your Max a stock 1200 with only S7K? if so it sounds to me that 260 km/h is a lot for a standard engine, since changing gear ratios should not affect the bikes power. For the non km/h familiar people, 260 km/h is about 153 MPH. WOW!! ----- Original Message ----- From: [EMAIL PROTECTED] To: V-MAX TECH LIST Sent: Wednesday, June 07, 2000 4:03 PM Subject: 5th gear replacement - first report Hi all, I mentioned a few weeks ago that I was experimenting with the gears from my Vmax. Last week I was on a holiday trip to the Vosges (Vogezen) in France with 15 friends in total. A good place to try out some of the settings of the bike. Perfect roads, not much traffic and some friends with bikes that perform well. (Honda VTR1000-SP1, Yamaha R1 and a tuned Ducati M900) The gears shift ok, rpm dropped to about 5100 at 150km/h. Ideal for long trips, it saves fuel which is quite expensive here in the Netherlands (f2,71 per liter!!) The bike pulls less than before, but this is obvious. On the highway it's ok. Top speed is about 260km/h (8000rpm) at the moment. This is not ok yet. The top end of the bike is not optimal yet. I am working on this this week. Although with this setup the bike will not reach the red line on the tach. In theory this would be 300km/h... It was not setup for top speed, but for 5th gear highway cruising at 120-150km/h While driving (racing!!) up and down the curved roads the gap between 4th and 5th is quite large. Flat out in 4th uphill and than shifting to 5th is no good. The 5th is clearly an overdrive. Conclusion: For long trips and high cruising speeds (120-160km/h, Europe) and "normal" driving this setup is ok. When you plan to use the bike for racing and you need the 5th, the gap between 4 and 5th is too big. I think for a very strong engine (1500cc) this is a good setup, for the standard bikes this will be overkill. Also low cruising speeds will bog the engine too much. Parts used: gears: 4NK-17251-00     4NK-17151-00 (royal star) Hindle 4-1 Carbon stealth Stage 7 kit Dymag 17" rims Bridgestone tyres: 170/60-17 (BT57) and 120/60-17 (BT56) I can sure recommend these for grip! It cost me the footpegs and the lower fairing of my bike... Any comments? Ciao, Patrick Kuyper Vmax Club Holland The Netherlands