07-17-2007, 11:43 AM
The OS A5 plug is colder than the McCoy MC-9 though. Dropped 30* off my 30vg. Had a OS#8, Was running at between 270 and 290* (plenty of smoke mind you) exceedingly hot and still rich, sputtering, dripping fuel. Couldn't lean it out for fear of cooking the engine. Went to a MC9, and that dropped the temps to about 250 to but I still couldn't lean it out as it would creep to 270 or higher.
Finally put in an A5 plug and the temps dropped to 230 to 250 running well, with a trail of smoke. Good performance finally.
Don't know what was different about this 30vg as the old one I had liked to run with a MC9 and was plenty happy at about 220*.
We'll see if this brand new 30vg I have likes a MC9 or a A5 plug after its had a half gallon through it and I start to lean it out. I don't like to run the 30vg hot because it uses a ABL, or nickel liner, and will wear quickly when it gets hot because the liner is soft.
Finally put in an A5 plug and the temps dropped to 230 to 250 running well, with a trail of smoke. Good performance finally.
Don't know what was different about this 30vg as the old one I had liked to run with a MC9 and was plenty happy at about 220*.
We'll see if this brand new 30vg I have likes a MC9 or a A5 plug after its had a half gallon through it and I start to lean it out. I don't like to run the 30vg hot because it uses a ABL, or nickel liner, and will wear quickly when it gets hot because the liner is soft.
[SIZE="1"]Big Toy:'89 GTA LT1/4l60e, spohn this and that, needs a few more things.
Little Toys: Hyper One Seven | Inferno GT | Jammin X1cr | Jammin CRT Pro | 1989 Batmobile Replica
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Little Toys: Hyper One Seven | Inferno GT | Jammin X1cr | Jammin CRT Pro | 1989 Batmobile Replica
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