CORRECT dwell settings?

[WillExoIX]

What are the CORRECT dwell settings for a small block Chevy?

One article says minimum for HEI4, another says to use dwell settings, WHICH ONE IS IT?

[billr]

What kind of coil(s)??? The SBC has had many, many different ignition systems over the years... and that is just the stock sytems!

[Matt Cramer]

"Minimal for HEI4" should be used when a 4 pin HEI module is controlling the dwell. And at no other time.

[WillExoIX]

7-8 pin HEI. The DIYAutotune site says to use minimal for HEI4 setting, doesn't clarify which HEI module however.

[WillExoIX]

What kind of coil(s)??? The SBC has had many, many different ignition systems over the years... and that is just the stock sytems!

MSD Blaster, 4 wire coil. HEI 7-8 pin. Running boost with a smaller plug gap. 82-92 sbc.

[Matt Cramer]

7-8 pin HEI. The DIYAutotune site says to use minimal for HEI4 setting, doesn't clarify which HEI module however.

Please post a link - I thought I'd fixed that.

[WillExoIX]

7-8 pin HEI. The DIYAutotune site says to use minimal for HEI4 setting, doesn't clarify which HEI module however.

Please post a link - I thought I'd fixed that.

http://www.diyautotune.com/tech_article ... _v8_v6.htm

All the way at the bottom of the instructions for MS1/Extra

[Matt Cramer]

Fixed.

[krisr]

I'm running 2.9ms dwell on my dads 350SBC with an MSD Blaster coil (round cylinder type, not the SS) and a VB921 driver. It has no spark issues, driver doesn't get hot etc...

[WillExoIX]

I'm running 2.9ms dwell on my dads 350SBC with an MSD Blaster coil (round cylinder type, not the SS) and a VB921 driver. It has no spark issues, driver doesn't get hot etc...

I'm running 1.4ms so far so good. I do have a plug gap half that of stock though. Was just looking for a good cranking dwell, running dwell, and minimum dwell settings or whatever that last one was.