Shirt Light Placement for Autocrossing
#1
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Hello all. I was wondering if autocrossers that have shift lights (that they can see) would chime in (or better yet show a picture) and discuss and share their placement of the shift light. I currently have mine stuffed into one of the two gauge side pillar holder but plan to use that spot for an oil pressure gauge so the shift light will be moving out.
#8
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Can't you hear the motor hitting the redline? Honestly whenever I did autox, I launched in first and then went to second pretty quickly, then normally stayed in second for the run. On a few courses I had to shift to third, but it was rare.
#9
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Back when I used to autox regularly, most courses only had one straight long enough to use 3rd with the 6-speed + 3.636. I briefly had a 6-speed + 3.9 in the car, that was a disaster as far as autox was concerned because most courses would have 3 or 4 shifts to 3rd. This was with 270 rwhp and a 7200 RPM rev limiter.
That said, I never felt the need for a shift light.
--Ian
#16
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Lean is bad because lean mixtures burn hotter and are more likely to detonate. If you turn the fuel off all the way, though, there's nothing *to* burn. Yes, hitting a fuel cut feels violent to the driver, but it's really not hard on the engine.
--Ian
#19
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The hydra in my car has a "soft" and "hard" rev limit. According to the manual upon arriving at the "soft" limit, it begins cutting back on fuel in proportion to it's distance to the "hard" (no fuel) rev limit. On the dyno it looks like a double tier waterfall beginning at the first "soft" limit and then crashing hard over at the hard one. I guess the thought process of the soft/hard limiter is to begin lifting when the car starts losing power, but in effect what is happening the car is running very lean because it's cutting back on the fuel supplied increasingly until the hard limit is reached. Would it be "nicer" on the motor to just set the two limiters at the same number to accomplish a NO fuel limiter?
#20
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That is, say you want to cut 1/4 of the fuel. Rather than doing four squirts of 75% of the normal fuel (which would take you from a nice safe 12:1 to a very dangerous 16:1), you get three squirts of 100% fuel and then one squirt missed entirely.
--Ian