Electronic ignition for Mercruiser 170 (1985)?

[twhrider2]

cfelton ...you are correct about leaving the switch on with the pertronix 1, but the pertronix 2 is supposedly (smarter) and will shut down to protect itself also on low and high voltage.

[THEFERMANATOR]

Originally Posted by twhrider2

cfelton ...you are correct about leaving the switch on with the pertronix 1, but the pertronix 2 is supposedly (smarter) and will shut down to protect itself also on low and high voltage.

Don't tell that to the model t guys. A common conversion on the model T is to add on a VW distributor, and many have added in the PERTRONIX 2 and had them melt down. One guy had an actual fire from it and did quite a bit of damage.

[twhrider2]

Model T and VW cross had to be bad voodoo. Fire on V20 is no good.

[DiverDux]

We, my brother and I own an 87 V20 and we just had the ignition upgraded to an electronic unit. Do not know what brand, but we were assured a faster starting engine and slower trolling speed as we would be able to idle the engine down much lower than before. Haven't had it on the water yet, but we are expecting good things. Make the change, I'm sure you will be pleased. Have a safe boating season!

[scook]

Thanks for all the great replies - I'm hoping this boating season will be a little LESS safe for the fish swiming near my V than last year:). I'll post progress and results.

[dan4836]

I installed the Petronix ignition last year and for the money, it was one of the best upgrades I did. Super fast starts and smooth running. I cannot comment on fuel economy because I did not take a baseline prior to the installation but I am sure I am doing better than points.

[scook]

I picked up the rebuilt distributor with Pertronix kit in it and Flame Thrower coil today. The old shaft was gauled badly and I can only imagine how bad the bushings were worn - no more side play and I'm pawing the ground to get the new stuff installed. Hopefully this weekend - we'll see if work cuts me a little slack.