| Slant Six Forum https://slantsix.org/forum/ |
|
| need help with ignition timing https://slantsix.org/forum/viewtopic.php?t=29235 |
Page 1 of 1 |
| Author: | dustertech2000 [ Fri May 30, 2008 6:02 pm ] |
| Post subject: | need help with ignition timing |
i have a 225 with a 4 bbl carb and a wicked cam. cam is .502lift 276 duration 110 seperation. i was wondering if anyone knows what the best timing would be? |
|
| Author: | DusterIdiot [ Fri May 30, 2008 7:12 pm ] |
| Post subject: | Time for a recurve... |
Drag racing you want some initial and no more than 30 total when off the line... daily driving should be some initial and no more than 30 mechanical... depending on compression you may need to have a heavy handed vacc. adv. to keep it from pinging (maybe no more than about 42-46 degrees at highway speeds...) -D.Idiot |
|
| Author: | terrylittlejohn [ Tue Jun 03, 2008 3:52 pm ] |
| Post subject: | |
when i ran the mopar .528lift / 284deg dur cam, with 10.5/1 compression, 32degs timing worked the best with supreme gas. |
|
| Author: | Sixpak [ Sun Jun 08, 2008 2:27 pm ] |
| Post subject: | |
Why no more than 30 mechanical? I've been experimenting with a bone stock motor and 35 mechanical, 49 total at 3000 rpm and so far no problems pinging , etc. I will say I ran some water thru the carb at high idle first to decarbonize the chamber and eliminate hot spots. And my cooling system is up to snuff. This is on pump gas 87 here in Florida. Took it out for a mileage test and pulled down 21 mpg in 90+ weather, doing 55 - 60 mph. |
|
| Author: | terrylittlejohn [ Sun Jun 08, 2008 6:18 pm ] |
| Post subject: | |
you can get away with those timing #`s with stock 7.5/1 compression! |
|
| Page 1 of 1 | All times are UTC-08:00 |
| Powered by phpBB® Forum Software © phpBB Limited https://www.phpbb.com/ |
|