WeasleVette454

They said that if I was using an MSD box WITH the Blaster II coil that they recommended it be mounted vertically. They said that if I was using the coil WITHOUT an MSD box, mounting it horizontally was just fine.
One step closer! :cool:
Weasle

bigvette1

What is this guy from MSD talking about? If I understand correctly, the Blaster II coil (same shape as a Delco) mounts in the coil boss on the intake manifold and that's vertical. BTW - What difference does vertical or horizontal make as to which box is used?

PatsLs1vette

the msd blaster 2 coil when mounted horizontally will allow the oil to be only on one side and heat up the windings which in turn could cause the msd to fail...i know from first hand experience.only mount it vertical off of the intake or firewall which i did.

jackson

Weasle:
Kinda makes sense ... if my logic's not faulty ... & MSD techs usually know their stuff VERY well! The Blaster 2 is an oil-filled canister (the blaster hi-vibration is an epoxy-filled canister). The oil helps cool the windings. Typically, canister coils are mounted vertically so most of the windings are covered with oil. When you drive the coil with an MSD box ... it'll shove a few hundred more volts into coil than without the box. So, the coil's windings'll tend to get hotter when driven by a box ... and they need all the oil-coolant available ... so mount the coil vertically with box. If no box, it doesn't matter as much so you can get away with horizontal. Better yet, run epoxy-filled or an e-core ... they mount either way ... no coolant or oil inside. I've got a new MSD Hi-vib Blaster epoxy-filled coil ... never mounted or used ... for sale. I've decided on & bought MSD HVC e-core instead.
JACKSON

bigvette1

Jackson, thanks for the education. Makes sense. I agree use an e-coil and then you can mount it where you need to. I used the recess in the firewall by the distributor. Nice little ledge and a place for one.