Heard in the Stands at the Indy

art leong · 09-04-2013, 01:59 PM

Cary I have an idea for a fairly cheap fix to your problem. Atatch a round plate about 7 inches in diameter and very thin (.030 or so) to the crankshaft hub. This becomes part of the crank. so the flange is now 7 inches. So your 8 inch hole is rule book legal.
The 4 cylinder Chryslers use something like that (but the same size as the crank flange) that ataches to the outside of the flex plate to help prevent harmonics from shaking the flexplate bolts loose.
I know how you feel I was furious that they made a big deal about the louvers in my fiberglass fenders. They allowed me to run that race but sent letters about me to all division tech directors so they would be on the lookout for me.
I took off my fiberglass fenders replaced them with metal fenders that were 8 pounds lighter. And painted the whole nose with a rattle can. Telling me to change them would have been fine but the letters to all division offices was over the top.

boostedf22c · 09-04-2013, 02:22 PM

Art, my flywheel registers and centers on the outside diameter of the crank flange, not the inside. So I'm not sure that would work. The flywheel is actually machined out to where the face of the crank flange recesses into it for centering.

zedrone · 09-04-2013, 04:48 PM

Cary,

I have a fix that might work, just "grease the palms" of the tech inspectors, after all that's what the manufacturers do to the NHRA.

Good Luck,

Zedrone

09-04-2013, 01:59 PM	#1
art leong VIP Member Join Date: Dec 2001 Location: Richmond Hill, Georgia Posts: 2,003 Likes: 0 Liked 1 Time in 1 Post	Re: Heard in the Stands at the Indy Cary I have an idea for a fairly cheap fix to your problem. Atatch a round plate about 7 inches in diameter and very thin (.030 or so) to the crankshaft hub. This becomes part of the crank. so the flange is now 7 inches. So your 8 inch hole is rule book legal. The 4 cylinder Chryslers use something like that (but the same size as the crank flange) that ataches to the outside of the flex plate to help prevent harmonics from shaking the flexplate bolts loose. I know how you feel I was furious that they made a big deal about the louvers in my fiberglass fenders. They allowed me to run that race but sent letters about me to all division tech directors so they would be on the lookout for me. I took off my fiberglass fenders replaced them with metal fenders that were 8 pounds lighter. And painted the whole nose with a rattle can. Telling me to change them would have been fine but the letters to all division offices was over the top. __________________ Art Leong 2095 SS

09-04-2013, 02:22 PM	#2
boostedf22c Member Join Date: Dec 2009 Location: Lebanon, IN Posts: 483 Likes: 0 Liked 0 Times in 0 Posts	Re: Heard in the Stands at the Indy Art, my flywheel registers and centers on the outside diameter of the crank flange, not the inside. So I'm not sure that would work. The flywheel is actually machined out to where the face of the crank flange recesses into it for centering. __________________ Carey Bales 316D DD/AT www.racetactics.net

09-04-2013, 04:48 PM	#3
zedrone Junior Member Join Date: Jul 2009 Posts: 17 Likes: 0 Liked 0 Times in 0 Posts	Re: Heard in the Stands at the Indy Cary, I have a fix that might work, just "grease the palms" of the tech inspectors, after all that's what the manufacturers do to the NHRA. Good Luck, Zedrone