Clutch switch
The switch behind the clutch pedal,that allows the starter to engage; is it required, per NHRA?
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Re: Clutch switch
Right, wrong or indifferent, looks like Auto's yes, and Stick no. I do not know of anyone having one. It may not be a bad idea, but not a rule for a stick car.
Sean See General Regulations 2:11. TRANSMISSION, Automatic Any model transmission (must be same make as car) having same number of forward speeds (O.D. gear not required) and reverse permitted. Transmission case must be OEM or aftermarket OEM replica from a standard, automotive application as found in the Official NHRA Stock Car Classification Guide. Aftermarket case must meet SFI Spec. 4.1 and 30.1. NHRA-accepted adapter plates permitted. Modifications to shifting patterns are permitted, provided full shift pattern is retained. Full shift pattern must include park and reverse. Any gear change must occur as a result of an internal function of the transmission or from direct action by the driver. Lockup converter permitted if OEM-equipped with lockup converter and OEM transmission is used. Otherwise, lockup converters prohibited. Electronic rpm controls for the electric (internal or external to the transmission) shifting of automatic transmissions permitted in computer-controlled vehicles only. Otherwise, any gear change must occur as a result of an internal function of the transmission or from direct action by the driver. Pneumatic, hydraulic, electric, etc. controls and shifters in all noncomputercontrolled electronic-fuel-injected vehicles prohibited. Deepened stock or aftermarket transmission oil pans permitted. Drilling of transmission case or rear of engine block to adapt incompatible units prohibited. Functional neutral safety switch mandatory. Transmission brake prohibited. Tailshaft modifications for bushing replacement, or NHRA-accepted aftermarket tailshaft, permitted. See General Regulations 2:12, 2:14. TRANSMISSION, Manual OEM or NHRA-accepted aftermarket transmissions having same conventional manner. See General Regulations 2:12.number of forward speeds (O.D. gear not required) as original, and reverse, may be used. All gear changes must result from direct action by the driver. Pneumatic, hydraulic, electric, etc. shifters prohibited. Floor-shift conversion kits permitted. Clutchless transmissions prohibited. Clutch must be used to change gears in a |
Re: Clutch switch
We used to get asked for that a lot. Usually when you explain it's a stick shift they said OK ----Trevor
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Re: Clutch switch
Thanks for the input.I got a reply from Div 1 Tech.They said,although it is a good idea, they have never seen it asked for in/on the tech line.
Hopefully that means that it is not required per NHRA |
Re: Clutch switch
I`ve never been asked in Tech, besides, most older stick cars never had a clutch pedal starter switch from the factory anyhow.
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Re: Clutch switch
Not needed for a stick, It is not a good Idea to push the clutch in when starting, puts pressure on the thrust bearing before the oil is circulated through the bearings
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Re: Clutch switch
Without syncros, I don't think I would want to start mine in neutral with my foot the clutch pedal, then put it in gear. Could be a tad tough on things.
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Re: Clutch switch
NHRA does NOT require a neutral safety switch with stick cars.
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Re: Clutch switch
Personally, in the manual transmission vehicles I own, and all that I've driven.... I never have the transmission in gear when I spin the engine over. Clutch switch to me, is redundant.
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Re: Clutch switch
Quote:
Bill, Thats an interesting thought? Just couriuos, even with almost nonexistent base pressure? I can operate my clutch fork by hand. I am not doubting, just trying to learn. Thanks Sean |
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