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08-31-2008 09:28 AM #1
Finally Got the Gremlins Out - MSD Problems?
We wrapped up the summer series yesterday with the High Altitude Bracketnationals...
Finally Thursday night found the problem that was robbing me of over half a second and had us stumped since Pinks... turned out to be the MSD 6AL box was missing, especially at high revs but also mid rpm. The box was about 3 years old and has served me well those three years. I heard from another racer that's about it for their life expectancy... Anyone else have an opinion on how long you can expect the box to function?
Finding that problem was another matter... it felt like it was running out of gas and I had been having problems with fuel delivery so I spent a lot of time chasing fuel system issues... on the bright side, now that I wrapped the regulator in foam rubber insulation, the pressure has stayed steady.
Other problems we found/fixed trying to get to the root:
1 broken valve spring
1 leaky coil
1 high resistance coil wire
1 melted/cracked wire boot
1 glazed plug
1 loose wheel stud tearing up rear shoe (thank you Meineke!)
After correcting each of these made no difference in how she ran and scratching heads for awhile it became obvious the only thing left was that MSD box... so ran up to Checker's and got a new box and voila she was back to her old selfFinally, about 9pm the night before testing for the big race...
All I can say is it was a great joy to drive down the strip when she runs and pulls and sounds just right... ending a month of frustration when she struggled just to get past 6000rpm.
I lost first round in both classes I was in but I still had a smile on my face cuz my baby was back...
Probably close to $2k in entry fees $5k in repairs and I think I made it to third round once this season... no checks, one trophy.
Now that the summer season is behind me, I'm ready to sweep the fall series
-Chris
And from here in the Ozarks a Happy 4th of July
HAPPY 4th