CLASS RACER FORUM - View Single Post - chev 4-7 firing order change

Ed Wright · 11-21-2018, 01:12 PM

When I was running (NOT driving!) a 410" "outlaw" dirt track sprint car in the '80s, the 4-7 firing order swap improved my bearing life. Did not test that on a dyno. All I had was a chassis dyno.

11-21-2018, 01:12 PM	#5
Ed Wright Veteran Member Join Date: Mar 2005 Location: Sand Springs, OK Posts: 8,132 Likes: 896 Liked 390 Times in 170 Posts	Re: chev 4-7 firing order change When I was running (NOT driving!) a 410" "outlaw" dirt track sprint car in the '80s, the 4-7 firing order swap improved my bearing life. Did not test that on a dyno. All I had was a chassis dyno. __________________ Ed Wright 4156 SS/JA