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Randal |
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#1
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Advanced Member ![]() ![]() ![]() ![]() Group: Members Posts: 4,446 Joined: 29-May 03 From: Los Altos, CA Member No.: 750 ![]() |
I totally blew my last two runs yesterday missing shifts.
I know part of this is the driver, but I also think the Rennshift springs are suspect. When we first installed the Rennshift it took some getting used to, but it worked all the time. I've run 8 events now with the new shifter and it was fine for the first four, but not for the last four. Saturday and Sunday at Alameda I was hitting reverse, shifting from first to second. Typically this was during cornering, but that is the way course work; you just can’t sit there on the rev. limiter waiting to the corner to complete. Also during very heavy cornering (like in a slalom) shifting from second to third, it was going into fifth. On down shifts from third to second it was hitting reverse. I destroyed a great run on Saturday on the second to the last corner....just couldn't find second. (Like Grind Me A POUND!) Very ugly. So what are the ratings on the standard springs? Is there somewhere I send my existing springs to have them tested? What heaver springs are available? At Alameda I was shifting up/down 8 times. Miss any shift and you blow the run. BTW the 911 guys don't have to shift more than once. |
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Randal |
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#2
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Advanced Member ![]() ![]() ![]() ![]() Group: Members Posts: 4,446 Joined: 29-May 03 From: Los Altos, CA Member No.: 750 ![]() |
Measurement:
Went out last night and purchased a fish scale. Maybe not the most scientific of instruments, but a measurement none the less. Measured the side to side load, which ended up being 6 lbs left to right, 7 lbs and a bit, right to left. So the springs, being the softer ones, are in specification. I'll change to the new heaver springs tonight and try them out at the Marina in two weeks. So the only explaination that I can come up with, pertaining to why they worked at first and then not later, is the G force experienced on the different courses. No question the couse last weekend had higher G forces. Guess that will have to do for now until we drive again. |
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