Posted By: sg66mopar
Spark Plugs for 572 & B1s - 06/10/10 05:59 PM
I've been running AR3910 plugs for a long time now but my new 572 with B1 MCs doesn't seem to like them. Who's using what? 
Spark Plugs for 572 & B1s
Posted By: mopdragster
Re: Spark Plugs for 572 & B1s - 06/10/10 07:56 PM
I RUN AR3932 same as 3910 but no extended tip.
No differnce between 3910 + 3932 back 2 back
540 b1 15-1 on gas
No differnce between 3910 + 3932 back 2 back
540 b1 15-1 on gas
Posted By: camastomcat
Re: Spark Plugs for 572 & B1s - 06/10/10 07:59 PM
Quote:
I've been running AR3910 plugs for a long time now but my new 572 with B1 MCs doesn't seem to like them. Who's using what?
Dick, I use either NGK 9's or 57CX's CPN-295 at Summit from champion. And the non projected long reach NGK's. I'll have to get you the number on mine, cause I don't have it here. How does the car work without an air pump?
Posted By: sg66mopar
Re: Spark Plugs for 572 & B1s - 06/10/10 08:24 PM
Dick, I use either NGK 9's or 57CX's CPN-295 at Summit from champion. And the non projected long reach NGK's. I'll have to get you the number on mine, cause I don't have it here. How does the car work without an air pump?
So far no problem.
I just clamped a K&N breather over the -12 bungs on the valve covers. When the rings start to go away I'm sure it'll be a different story. It'd probably make some more power with a pump but, oh well.
Unless I re-mount my radiator further forward there's not much room.
Posted By: camastomcat
Re: Spark Plugs for 572 & B1s - 06/10/10 08:27 PM
NGK 5671 A9's. Also at Summit. Cool on the not needing a pump though. What MPH in S/G?
Posted By: b1headman
Re: Spark Plugs for 572 & B1s - 06/11/10 01:46 AM
Dick,On most of what we do I use the NGK R5671A-9 plug.
Posted By: sg66mopar
Re: Spark Plugs for 572 & B1s - 06/11/10 02:42 AM
Thanks Scott and Tom, I'll get some of the NGKs ASAP. I used some 5672A-9s last year and didn't like them but maybe the new heads will.
Tom, no full passes yet without the motor crappin' so no idea on SG MPH yet. I'm borrowing a buddies spare 7AL3 and Pro Power coil this weekend for Jim's "Fire & Thunder" race. I'll make the first hit with my parts then if it still doesn't run I'll swap the box and coil and try again. Sure would like to get a SG pass or two. Hope I can get more than the 1 pass I made last time I went to Woodburn!
Did you see the You Tube vid I posted of the car on Paolo's chassis dyno. Look under the car.
Tom, no full passes yet without the motor crappin' so no idea on SG MPH yet. I'm borrowing a buddies spare 7AL3 and Pro Power coil this weekend for Jim's "Fire & Thunder" race. I'll make the first hit with my parts then if it still doesn't run I'll swap the box and coil and try again. Sure would like to get a SG pass or two. Hope I can get more than the 1 pass I made last time I went to Woodburn!
Did you see the You Tube vid I posted of the car on Paolo's chassis dyno. Look under the car.
Posted By: camastomcat
Re: Spark Plugs for 572 & B1s - 06/11/10 01:19 PM
Quote:
Thanks Scott and Tom, I'll get some of the NGKs ASAP. I used some 5672A-9s last year and didn't like them but maybe the new heads will.
Tom, no full passes yet without the motor crappin' so no idea on SG MPH yet. I'm borrowing a buddies spare 7AL3 and Pro Power coil this weekend for Jim's "Fire & Thunder" race. I'll make the first hit with my parts then if it still doesn't run I'll swap the box and coil and try again. Sure would like to get a SG pass or two. Hope I can get more than the 1 pass I made last time I went to Woodburn!
Did you see the You Tube vid I posted of the car on Paolo's chassis dyno. Look under the car.
I did see it. The starter looks like it is gaining a little clearence, but mine has done that too. What do you have for jets and what carb? And what timimg? Checking all of you MSD connections might help, as well. I used to have issues with the moisture in that area over the winter corroding all kinds of stuff in my car. I'm sure it's something simple. I never used Autolite plugs, but if you are a little hot, or too fat or lean, too much timing etc, that might be causing you a problem. I'll be out there for the divisional at the end of the month racing my old car in S/C. Then you can watch me struggle.
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Posted By: Al_Alguire
Re: Spark Plugs for 572 & B1s - 06/11/10 02:25 PM
R5671A-9 for me as well. I have to use the stock number to order them from my local parts store though. Cant remember that number though on vacation up here on the border..Back to looking at trees and watching whales and dodging raindrops