Plug read
TECH Fanatic
Joined: Jan 2009
Posts: 1,076
Likes: 479
From: Bostwick, GA.
Alky?? As in E85?
Application?
Plug part number?
Can't see the ground strap, so no timing info.
Looks like it's loaded with anti seize.
Porcelain looks to have been hot. Erosion around the pin.
How does this plug look compared to the other 7?
Reading a used plug is pretty much a crap shoot.
Need more info.
Application?
Plug part number?
Can't see the ground strap, so no timing info.
Looks like it's loaded with anti seize.
Porcelain looks to have been hot. Erosion around the pin.
How does this plug look compared to the other 7?
Reading a used plug is pretty much a crap shoot.
Need more info.
Cant tell much from that plug IMO. Run it clean with no anti-seize on it. Also you need a new plug with one pull/pass to redline and an immediate shut down. Fueling is hard to read on an alky plug as is. Prob not going to get the best response posting 2.3 tractor content on an LS forced induction forum.
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TECH Fanatic
Joined: Jul 2022
Posts: 1,046
Likes: 396
From: Alaska
Last time I ran METHANOL straight, I tuned with a DRILL index. Did not have a wide band O2, but you could HEAR the tune in the exhaust note.
Drilled main jet out until the wide open throttle sounded flat and blubbered, at 1/8", than drilled one next size smaller. Sharp, crackl-ey sound.
It was a 4-5/16" stroke Sportster at 13:1 compression, and I ended up with a .118" main jet in a 2-1/16" throttle body.
I never got any color on spark plug, and It ran about 18 mpg on the street. Traction limited in 3 gears.
.
Methanol is almost half OXYGEN by molecular weight, so you can burn a VERY LARGE volume of Methanol.
Stoich is around 6.4:1, but it has a pretty wide range that will make power.
Drilled main jet out until the wide open throttle sounded flat and blubbered, at 1/8", than drilled one next size smaller. Sharp, crackl-ey sound.
It was a 4-5/16" stroke Sportster at 13:1 compression, and I ended up with a .118" main jet in a 2-1/16" throttle body.
I never got any color on spark plug, and It ran about 18 mpg on the street. Traction limited in 3 gears.
.
Methanol is almost half OXYGEN by molecular weight, so you can burn a VERY LARGE volume of Methanol.
Stoich is around 6.4:1, but it has a pretty wide range that will make power.
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