Im about to wire in an rpm switch and wanted to get some opinions. Is it better to tap the signal wire off the distributer, ecu or cluster?

I'd rather tap into it under the hood so I dont have to mess with the wiring harness but I'm not sure wich wire. Any help would be great.

 

im just starting to get interested in an rpm switch, can you tell me which one youre going to buy?

anyone selling a used summit rpm switch?

 

I found an msd 8950 on ebay for $30 so I snagged it. The summit one is out of stock/backordered. Only downside of the msd is that you have to find a new pill to put in it to change the rpm engagement point.

They both ground a circuit out at a certain rpm so you need a relay to make the +12v connection to the solenoid. If I had the money I would go obd1.

 

yeah, im just looking to make a shift light using stock dash indicators.

yeah, i noticed the summit one is backordered til 10/7.

im just waiting for a decent used deal anyway.

sorry for jacking the thread

 

no prob, so does anyone know what wire on the cluster I have to tap into for the rpm switch?