Focaljet - Ford Focus Forums - View Single Post - What spark plugs should I use with the MSD Blaster Coil p/n 8241

**4rd Toys** · 05-22-2008, 05:53 AM

***Same products but an unusual situation***

I had just installed my MSD Blaster Coil [#8241] & MSD 8.5mm Plug wires [#32939] that I ordered from CFM for my SVT Focus along with Autolite Iridium spark plugs from local auto parts store-
I started the car & it sounds completely abnormal & unsure if it is firing properly or in correct order. I immediately shut the car down & verified all my connections.

Supposedly the spark plugs are pre-gapped from the mfgr @ 50-thousandths. I was told not to verify or I could cause damage to the iridium tip.
Installed as follows-
1) Plug wires are installed [left to right facing motor] 1-2-3-4 with #1 wire being the longest.
2) MSD Coil installed but instead of the OE electrical connector facing the battery box it is now facing the radiator [it rotated 90 degrees clockwise]. The MSD instructions do not list wire connector numbers/positions - I used to OE Ford Coil, rotated it clockwise 90 degrees since the blaster coil is installed that way followed the numbers on my original coil. 1-3 [top row/ row closest to firewall] & 4-2 [bottom row/ row closest to radiator]

So looking @ the blaster coil from the front- What should be the plug wire order starting @ the top left corner & rotating clockwise?
Are the Autolite Iridiums an inferior plug?
Could my Coil be defective?

05-22-2008, 05:53 AM	#6
4rd Toys Junior Member Join Date: May 2008 Location: In the Driver Seat Posts: 57	Re: What spark plugs should I use with the MSD Blaster Coil p/n 8241 *Same products but an unusual situation* I had just installed my MSD Blaster Coil [#8241] & MSD 8.5mm Plug wires [#32939] that I ordered from CFM for my SVT Focus along with Autolite Iridium spark plugs from local auto parts store- I started the car & it sounds completely abnormal & unsure if it is firing properly or in correct order. I immediately shut the car down & verified all my connections. Supposedly the spark plugs are pre-gapped from the mfgr @ 50-thousandths. I was told not to verify or I could cause damage to the iridium tip. Installed as follows- 1) Plug wires are installed [left to right facing motor] 1-2-3-4 with #1 wire being the longest. 2) MSD Coil installed but instead of the OE electrical connector facing the battery box it is now facing the radiator [it rotated 90 degrees clockwise]. The MSD instructions do not list wire connector numbers/positions - I used to OE Ford Coil, rotated it clockwise 90 degrees since the blaster coil is installed that way followed the numbers on my original coil. 1-3 [top row/ row closest to firewall] & 4-2 [bottom row/ row closest to radiator] So looking @ the blaster coil from the front- What should be the plug wire order starting @ the top left corner & rotating clockwise? Are the Autolite Iridiums an inferior plug? Could my Coil be defective?