MSD part numbers
 

Hi all. When fitting an MSD, 101 Projects recommends the 6420 model. I have the opportunity of a 6200, is this an inferior model and not suitable for a 1970 911? My car is an everyday road car not a track car. Cheers

MSD Streetfire is a newer unit at a low price that people are having good results with.

6200 and 6420 are no longer supported, but work fine if you find one.
6201 and 6425 are the new versions, slightly smaller and with a better cabling system.
The 6200/6201 are the "6A" version, the 6420/6425 are the "6AL" vesion.

6200/6201 have no rev limiter. 6240/6425 have a rev limiter. Nice to have that...

Streetfire 5520 is smaller and lower powered, but still plenty for any stock aircooled 911. Much smaller than the 6A/AL, rev limiter, solid state electronics (might survive heat and vibration better?) and black instead of red.

6421 is the 6AL with a a dual stage rev limited (launch control), 6530 is the 6AL with programmable advance control.

great response thank you, might go the Streetfire after all. Same tach adaptor?