I made some small changes to my S/P bracket car this winter after causing a direct short to the alternator wire going to the battery which melted it and causing some other damages to the wiring and C.O. 2 lines and to the alternator. I replace the burnt #10 wire with a #4 and grounded the new 100 amp Powermaster alternator with #4 wire also like the tech. at Powemaster said to do it
I leaked it down and reset the timing and check the valve lash, nothing hurt or off after running it last year
I swapped out the front steel Koni single adjustable coil over shocks to a new set of Afco aluminum double adjustable coil overs(Thanks Al for the help ) I also replaced the plug and coil wires with new Taylor 8MM
I decided to add some 99.0 pure ethanol to my E85 pump fuel to raise it to make E90 and I bought a new set of Goodyear 15x33x15 slicks replacing the Hoosiers 13.5x32x15 that wouldn't consistently hook my car.
I took the car to Yakima WA , Renegade drag strip on Friday and was able to make two runs and two more on Saturday, It threw the alternator belt off on every run Friday they opened the pits at 6.00 PM and started running around 7.00 PM
The water box kid had me to far forward on the first pass on the right hand lane, passenger side tire was on dry pavement causing the car to go hard right at the start of the burn out ruining that run, second run wasn't much better spinning the tires on the line and it didn't pull hard after that either that either. I tried 10.0 lbs. in the tires for both runs. 1st run numbers .229 reaction time 1.426 60 ft.,4.031 330 ft.,6.209 1/8 mile at 112.69 MPH, 8.091 1000 Ft., 9.688 et at 140.82. I had forgot to check the sift RPM in the box, nothing in it, so I had to shift it manually at 7500 RPM Junk run with a bad burn out
The second run was a little bit better but I hadn't seen the alternator belt was off so it wasn't very good run either. Better burn out helped with a .002 reaction time with a 1.365 60 ft. , 330 ft. was 3.934, 660 Ft 6.102 at 113.23 MPH, 1000 ft. was 9.559, 1/4 mile ET 9.559 at 142.31 with the alternator belt off. I didn't try charging the batteries between runs
I stop testing after the second run due to it was cold and damp and the weather getting worse and close to dark and I didn't want to work on the car in the dark so I went to out eat and back to the motel.
They where opening the track at 12:30 PM on Saturday and I managed to get in around 11:00 AM to work on the car, I pulled all the plugs and found two bad ones, #8 was really black and #3 had the center porclyn was broken off in the plug and missing
All the rest of them looked good so I put them back in replacing the two bad ones.
I changed the jetting up two jet sizes from last year, 93 in the front and 103 in the back to 95 and 105. 1st run on Saturday resulted in a .016 reaction time with a 1.389 60Ft time,3.965 330 ft.,6,123 1/8 mile at 113.79 MPH , 7.999 at 1000 Ft with 9.579 ET at 141,77 MPH it didn't leave hard or pull hard during that run, it had thrown the alternator belt off again I played the run back on my box and it shifted at 7300 RPM and crossed the finish line at 7650 RPM, time to move the low gear shift RPM up to 7500 RPM maybe
When they called for the second time trail it didn't want to start right away and acted like the 5 yr old batteries where low dragging the starter down so I decided to not make that run and try the time only run lane later. I checked the battery voltage and it was reading 12.67, I hooked the jumper cables up to my truck and charge the car batteries for around 20 minutes before getting into the time only lane. I normally charge the batteries for two or more days on my 4 amp charger to top them off but I forgot to do that before loading the car into the trailer Thursday afternoon
That run was ended up with a .029 reaction time, 1.391 60 Ft, 3.937 330 ft., 6.083 1/8 mile at 113.98 MPH The track had decided to make the all 1/8 mile runs after the first time trials due to the wind blowing across the track more than they liked so no 1/4 mile times for the rest of day.
I decide to stop torturing the car do to the alternator belt coming off on every run after the second run and took it home
Time to fix the alternator alignment issue and try again next week, hopefully at our local 1/8 mile track in Madras, OR
It ran a best of 5.50 at 120.+ MPH at Madras last year before the changes
I'll leak it down again and go from there
EDITED
I started working on my car this afternoon, I found # 4 spark plug wire off I'm not sure If it fell off on the first run Saturday afternoon after I removed all the plugs and found two bad ones in #8 and #3 or if it fell off putting it in the trailer Saturday afternoon after the last run
Maybe there is hope after all
I'm planning on working on aligning the alternator better to the crank pulley to help keep the belt on
I'm hoping to run it this weekend at Madras, God willing and the Creeks don't rise

Young fella still chops the tree!!

I forgot to mention that I had change the front tires also, took off the 28 inch tall and put the smaller 26 inch tall on due to the new coil over springs raising the front end ride height by one inch, not good I'm going to order some weaker front springs for the coil overs to get the nose back down where it use to be, I'm sure raising the front up is not good, especially in the 1/4 mile

Bring it down and we will strap it on the rollers and proof everything for the 2020 season. That way we have a baseline you can work from. : D Glad to hear you made it out!

Yeah, at least you were there.

Why? Isn't the alternator grounded directly to the frame by the mount(s)? Or are they saying just in case the mounting bolts come loose?

Are you using a throttle stop/timer or some setup? Or is that an all out pass for testing purposes?

9.579/6.123 = 1.56 ratio, which seems basically all out.
But I am surprised the sixty foot isn't quicker with a 9.50's 1/4 mile pass.

It was WOT on all passes, it didn't leave worth a hoot on any of them
New rear tires and front shocks as well as a cold damp day was not conducive to good results. I ran 10.0 Lbs. on both runs on Friday and lower the pressure down to 9.0 Lbs. on both runs on Saturday, I think adding the additional E99 ethanol and making the carb jetting fatter may have been the wrong thing to do at the same time It was lame leaving on every run, it never sat me back in the seat like it usually does
I'm going to fix the alternator mounting and belt alignment and run it this weekend locally, Powermaster wanted their alternator grounded directly to the block on a threaded steel bolt connection into the block instead of using the aluminum motor plate as the only grounding for it
I'm also going to tighten up the front shock travel also to see if that helps it leave better
Sometimes what you think will work doesn't

Good luck Cab!

hi


built the ol 440 in my cuda in 1986 so i felt it was time for a up date soooo , i dug down deep an installed a new valve cover gasket on the pas side !

maby next year in july i will change the oil AND filter as it will be 10 years from last time .

still running mid 12 s so i did not see any improvement in et with the new gasket ?