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Old 04-17-2008, 01:35 PM   #8 (permalink)
trebuchet03
MechE
 
Join Date: Dec 2007
Location: Bay Area
Posts: 1,151

The Miata - '01 Mazda MX-5 Miata
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Hold on a second....

1. What speed is "a certain speed"
2. What gear are you bump starting?
3. How are you bump starting (are you just letting the clutch engage?)


Bump start in the highest gear possible, and don't let the clutch completely engage. You want to let it bite just enough to spin up the motor and then push in on the clutch pedal as soon as that happens. Then, tap your throttle (to rev match) and put yourself back in the gear suitable for the speed you're traveling.

DO NOT just let the clutch pedal go and call it a day... That's a LOT of strain on the clutch assembly (ever seen a clutch blow out? it's pretty cool looking o.0). It also puts a lot of strain on the rest of the rotating components that weren't designed for a quick change in torque (such as belts/pulleys).
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