dvw
Well-Known Member
How are you preparing for the season? Our season starts 1 month from today. We will be on vacation for a week this month, so only 3 weeks to get it done. Last year my 1000+ pass used T&D rockers developed a crack in one rocker. Over the winter T&D made a new set. Cam has over .825 " lift on the intake. Springs have 300 runs. The fuel pump that failed last year has been rebuilt. Alternator that kept failing regulators has been repaired. Duct for the trans cooler was done over the winter to address temp issues on round robin runs. Fuel pump was an easy swap as the spare is the same. Pulled the trans shield to swap the filter and fluid. All looked good. Adjusted the KD band and checked the shift cable adjustments at the same time. Hopefully repaired a small nagging drip at the park cable while I was there. Rewired the output cable from the alternator all the way to the battery. My thought was maybe flyback from when the two high amp fans (on the same power feed last year) when shut down were spiking the regulator. Also swapped the two fans so the left fan is the primary when using only one fan. There is a better path for air flow in the enginge compartment on the left. Reconnected the wire that was left off during the intitial alternator upgrade last year. Now the headlights work. The car has a pretty agresive cam, 285/296 .830"/.810". So lah is checked every 20-25 passes. Springs checked 2-3 times a season. Tested all the existing valve springs. On the car, and off the car. Learning a lot about testers. As it turns out all but one were with in spec. However I have a second set with 200 runs on them. They all tested about 25-30 lbs better than spec. Since the rockers were already off it wasn't that big a deal to swap them. The only issue is the published coil bind is 1.100". The intakes really need 1.080" to have .050" coil bind. So each spring has to be fully compressed and measured. All coil bind tighter than spec. The tightest were used on the intakes. The exhaust only lifts .800" so 1.100" will work. Each spring was pressure tested both on the bench and with the on the car tester. Since both read slightly different now I know what the true number is. That will make monitering pressures more accurate. During the swap 2 of the 8 rocker shafts were worn. So have to wait for them to complete the repair.Took about 30 minutes to inspect the underside of the car. Welds, heims, lines, tires. all looks great. Have 20 events planned for this season wit hsome 10 hours one way. Being it runs close to 150 It's got to be safe and reliable. Bought a Necks Gen head/neck device also. We will see if this 70 year old can turn on some win lights.
Doug
Doug