Hei 4-pin

buzzy · Post by **buzzy** » Thu Jun 22, 2006 7:18 am

Hello, I`m from Norway and have a chevy blazer s-10, and a firebird intake, 2.8 MPFI. (just to get the injectors etc)

I have ms II, and controlled only fuel at first... Now I want to wire the ignition, but have some questions:

It`s a 4-pin HEI module in my distributor, and I read that on the two wires that comes out of the dist, I can put in on the Hall sensor circuit on MS?? is this correct? I also read lance written that the 4-pin also controlles dwell? how am I supposed to wire/set up MS for this? do it need pull up voltage at the signal input? Stim works fine, but get no rpm with this wiring. Wired the 1. lead to +12 at the coil, and the other to tach input at MS. Sorry for my bad english

Thanks for any help!

buzzy · Post by **buzzy** » Thu Jun 22, 2006 7:36 am

So you are saying that I can use the 4-pin HEI, on the VR input on my V3 MS board? In that case, Is it any setup I need to be aware of? if the thing is some sort of intelligent?(mean dwell etc).
And yes, I am using the direct coil driver.

buzzy · Post by **buzzy** » Thu Jun 22, 2006 7:51 am

ohh.. sorry.. i forgot to mention that.. uff.. I only want to use the 4-pin to get an input for MS..

buzzy · Post by **buzzy** » Thu Jun 22, 2006 8:13 am

Thanks!