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Mr.P 911T 1970 Mr.P 911T 1970 is offline
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Join Date: Jun 2020
Location: Honolulu, HI
Posts: 39
Pelican Parts Bosch CDI Compatible with MSD Coil?

Aloha,

Merry Christmas. Appreciate you all who take the time to reply to the forums - very grateful for the community.

Now on to the real business - the issue.

CURRENT State: Rebuilt my 2.2T - new pistons (S), new cams (E), new PMOs, rebuilt distributor, plugs, CDI, PMO fuel regulator, etc.

PROBLEM: Runs great, very rich and hard to get the initial ignition on the start, takes a couple of tries. Using non-ethanol gasoline only 89 - 93, hard to get higher octane on island. I checked all six plugs with valve adjustment and the plugs were blacked up.

IMMEDIATE SOLUTION: So, we drop the fuel jets from 120 to 115 size and swapped the plugs from NGK 7 to 5s. The engine and throttle are a little bit more "snapper", good response. Yet, I'm still rich and difficult to get that good ignition response.

Feels like I need more (hotter longer) spark...

It was suggested that I switch my ignition coil from the Bosch to MSD. Is the original Bosch CDI compatible with the MSD coil? Blaster Series? High Vibration? Which one?

What about re-gapping the NGK5s to something larger after adding the MSD Coil? How about new spark plug wires from 7 to 8.5mm?

I want to incrementally walk myself into the ideal solution without changing too many variables at once or like installing whole MSD box system

Mahalo!

Last edited by Mr.P 911T 1970; 12-22-2022 at 04:08 AM..
Old 12-22-2022, 02:32 AM
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