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73-87 Chevy _ GMC Trucks => Performance => Topic started by: buzzman351 on September 05, 2022, 12:30:35 PM

Title: Msd blaster coil on stock 350 tbi
Post by: buzzman351 on September 05, 2022, 12:30:35 PM
Is it worth the money to put the Msd blaster 8226 on my stock truck? Will I still be able to leave my tach hooked up to the coil output lead?
Title: Re: Msd blaster coil on stock 350 tbi
Post by: peewee0413 on September 05, 2022, 12:32:34 PM
Not needed even if you could decipher the wiring.

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Title: Re: Msd blaster coil on stock 350 tbi
Post by: buzzman351 on September 05, 2022, 12:34:28 PM
So just get the stock coil and keep rolling?
Title: Re: Msd blaster coil on stock 350 tbi
Post by: peewee0413 on September 05, 2022, 12:38:45 PM
You don't need any higher voltage or current to make a TBI run. Boost compression,  change fuel, rev higher, etc, and that's a different story when you start talking about ignition. TBI's suck right off the production floor... a blaster isn't gonna give you more power.

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Title: Re: Msd blaster coil on stock 350 tbi
Post by: buzzman351 on September 05, 2022, 12:40:16 PM
Yeah not trying to get more power just thought a better made part would pay off. I appreciate the help.
Title: Re: Msd blaster coil on stock 350 tbi
Post by: peewee0413 on September 05, 2022, 12:40:34 PM
The 350 TBI doesn't even flow enough to support doing anything to a TBI chevy. Takes more than a blaster coil to make a TBI good..

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Title: Re: Msd blaster coil on stock 350 tbi
Post by: peewee0413 on September 05, 2022, 12:46:57 PM
I read it takes about $2k to get 100hp out of a NA TBI 350.. I put 6k splurged even,  and got a good 350.

https://youtu.be/1_0lmjTg4qo

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Title: Re: Msd blaster coil on stock 350 tbi
Post by: bd on September 05, 2022, 01:07:07 PM
A good quality stock replacement coil will function perfectly even with moderate performance engine upgrades.  The tach signal universally comes from the negative primary coil terminal with the exception of a few aftermarket CD ignition systems.