In the area I live in, I would have to drive like 2 hours to get anywhere close to where a dyno might be. So I need some advice. I have I/H/E, port and polished head, upgraded valve springs, modified distributor cap w/blaster coil,port matched intake manifold and AEM adjustable Cam gears. I want to know if anyone has a setup like mine and can give me some options on setting my cam gears.
Go out in the country, mark off a set distance on a flat road about a 1/8 to 1/4 mile. Start off with 0/0 settings, do some timed runs in both directions. Change your settings and try again. If you do it properly you will get better results then a dyno.
Originally posted by DB2-R81
Go out in the country, mark off a set distance on a flat road about a 1/8 to 1/4 mile. Start off with 0/0 settings, do some timed runs in both directions. Change your settings and try again. If you do it properly you will get better results then a dyno.
I think he means degree adjustments- i was wondering the same thing…WHAT IS THE BEST SETTING FOR CAMS w/ adjustabe CAM gears with a i/h/e teg w/ higher compression (9:6.1) and an occasional 70 shot nitrous??
Originally posted by DB2-R81
Go out in the country, mark off a set distance on a flat road about a 1/8 to 1/4 mile. Start off with 0/0 settings, do some timed runs in both directions. Change your settings and try again. If you do it properly you will get better results then a dyno.
it’d probably be better not to do runs from a stop. If you do runs where you have to start from a stop as well as shift you are adding too many variables. Especially when tuning such a lightly modified setup. I wouldn’t expect any good gains from the gears without a set of cams.
The way i’ve heard to test mods is:
-start off with a good flat straight stretch of road. Get into 2nd gear and start at a specified rpm and speed, say 2k rpm. Then floor it. time how long it takes to reach redline. then do various pulls with different combos of the cam timing, and compare the times for each 2k-redline pull. there are still variables that will make tuning accurately difficult. But at least you won’t have to deal with the inconsistency of launching and shifting.