Cecil County 9-13-24
The results are in!
I didn't have the chance to try anything except to try to get consistent runs.
The main differences from last trip were:
-The air was "Summery". Last trip it was very "Autumny", for lack of accurate numbers.
-2” taller tires, (235's vs. 265's)
-I advanced the cam from 108 to 104.
-Last trip's runs before these differences were 11.80's at 110, 111.
I left at about 1500 rpm.
Shifted by light, set at 5800, probably occurred at 6000?
(Both the same as before.)
I dropped the air on the M/T ET Streets from 18 to 15 after the 1st run, it may have spun a little on the first run.
It trapped at 6200. It still runs out of breath, but closer to the finish line.
It seemed to flash to about 4000. Hard to say because it's already moving, and climbing. It power brakes to 3200.
I used this site for D.A. Cecil County Dragway - Rising Sun, Maryland - Engine Tuning Weather I didn't think of it until the 2nd run, and I've never used it before.
D.A.
-2nd 1861'
-3rd 1719'
-4th 1457'
-5th 1303'
Water Temp:
-1st 160
-2nd 170
-3rd 170
-4th 160
-5th 170
I only have the stock water pump and a flex fan and shroud, so the temps might not be accurate. (Autometer mech. gauge.)
It pulled smoothly all the way down. Before it sometimes felt like the secondary spring opened at different times. That's why I put the vent whistles in.
I don't know if it's faster or slower! The 3 changes I listed above added too many variables. I will probably go again when the air is better.
Each run was pretty much slower than the previous, even though the D. A. was getting better. Maybe jetting isn't right? (72 and 75 as it usually is, but the jetting was 74, 77 last trip, another variable!)
I'm an old bracket racer, and I didn't build this car to race, but I can't help but fiddle to try to figure things out.
Idea's and comments, please!
No pictures, I was by myself. I'd love to get a video of it coming off the line.
P.S. Yes, lights were terrible. I was watching the tach for the flash speed. That’s my story and I’m sticking to it!
The results are in!
I didn't have the chance to try anything except to try to get consistent runs.
The main differences from last trip were:
-The air was "Summery". Last trip it was very "Autumny", for lack of accurate numbers.
-2” taller tires, (235's vs. 265's)
-I advanced the cam from 108 to 104.
-Last trip's runs before these differences were 11.80's at 110, 111.
I left at about 1500 rpm.
Shifted by light, set at 5800, probably occurred at 6000?
(Both the same as before.)
I dropped the air on the M/T ET Streets from 18 to 15 after the 1st run, it may have spun a little on the first run.
It trapped at 6200. It still runs out of breath, but closer to the finish line.
It seemed to flash to about 4000. Hard to say because it's already moving, and climbing. It power brakes to 3200.
I used this site for D.A. Cecil County Dragway - Rising Sun, Maryland - Engine Tuning Weather I didn't think of it until the 2nd run, and I've never used it before.
D.A.
-2nd 1861'
-3rd 1719'
-4th 1457'
-5th 1303'
Water Temp:
-1st 160
-2nd 170
-3rd 170
-4th 160
-5th 170
I only have the stock water pump and a flex fan and shroud, so the temps might not be accurate. (Autometer mech. gauge.)
It pulled smoothly all the way down. Before it sometimes felt like the secondary spring opened at different times. That's why I put the vent whistles in.
I don't know if it's faster or slower! The 3 changes I listed above added too many variables. I will probably go again when the air is better.
Each run was pretty much slower than the previous, even though the D. A. was getting better. Maybe jetting isn't right? (72 and 75 as it usually is, but the jetting was 74, 77 last trip, another variable!)
I'm an old bracket racer, and I didn't build this car to race, but I can't help but fiddle to try to figure things out.
Idea's and comments, please!
No pictures, I was by myself. I'd love to get a video of it coming off the line.
P.S. Yes, lights were terrible. I was watching the tach for the flash speed. That’s my story and I’m sticking to it!