******************************************************************************** ***************************Team Benwell Short Test Report*********************** ******************************************************************************** Test Number: 009 Name: Mark Bennett Chassis: NF502 chassis no. 2 Date: 22-04-02 Time: 08.20 Place: Elm Court Weather: Dry Sunny Object of test: To evaluate yesterday's rebuild. ******************************************************************************** Modifications: See setup report 002 ******************************************************************************** Results: Much better, diffucult to pinpoint exact areas of improvement, but the handling is much more predictable. Steering (front end): It now seems to turn much sharply and at a higher speed and now turns equal amounts both sides. Turning circle is greatly improved however this has had a detrimental effect on power delivery (see next section) but I dont think we will be turning such tight corners on a proper race track. High speed conering also seems slightly better. Note: the silicon tube on the steering rod needs to be 'pinched'tight between the collets to stop the steering pre-empting (I can explain this better than write it) Power delivery (rear end): note. test was carried out without rear helper spring. Seems more predictable. Rear tyre won't slide coming out of a corner underpower and only breaks away when coming out of very tight corners, but I don't think this will be too much of a problem on a race track. In other words it seems to put down all the available power without sliding or high siding back of bike still rises and falls but not as violently. very small occelations and minor tank slappers. (see recommendations note 5) Note: The motor is a major concern and I think is giving false test results. it has a very low top speed but gets there instantly, i.e is very torquy. I need a motor that revs but not nessassarly one that gives masive amounts of torque. Note 2: after a couple of minutes I had got the steering trimmed almost perfect, (not withstanding the fact that it was pre-empting slightly) However, after 1 or 2 minor collisions with the kirb and my foot I noted that the trim had now gone way out and I had to fiddle about trimming again. A quick twist on the front wheel had it now trimming back the other way. (see recommendatins note 4). Conclusion. It hasn't completely transformed the bike but I am now in a position where I feel confident with the bike and am able to fine tune it rather than just trying to get it to drive consistently. Recommendations for future tests: 1. Pinch steering tubing tightly between collets 2. New Motor possibly 13x3 or 13x4 3. Shorten crash bars 2mm each side 4. Tighten up front fork assembly 5. More steering damping