BatmansRoadstar wrote:
So of course right when I post this I find the old link for it http://roadstarclinic.com/component/option,com_fireboard/Itemid,187/func,view/catid,13/id,306238/
However It kind of dies off after the couple posts...kinda looking for more input as far as will I have to change out the whole engine to do this for some sensors, change the tank, and much more? To be honest I would love to get comfortable enough with the carb that I can work on it and know what I'm doing, but I don't have the money for trial and error right now, and I would like knowing that when I change elevations the ECU automatically changes the amount of fuel putting into the motor. Anyway...any info from you a SMRT brainiacs would be great! Thanks again!
That the beauty of a CV carb (constant velocity) There's really not much trial and error, once the carb is tuned to your pipe and air kit set=up, and tuned in the temps of your ride season, most that needs to be done is a tweak to the
pilot screw when those temps get into the 50's and or below. Do a search for a CV carb to get to understand how it works, thats how I learned. Because the slide is raised and lowered by vacuum pressure, elevation also plays a role, due to atmospheric pressure. Best thing I can tell ya is to read, read, read. I've done a lot of reading over the last 6yrs. But probably the best thing I did was to learn about AFR and the use of an exhaust gas analyzer (EGA) to tune. The thing is, if you don't know the FACTS, then how do ya tune? My example is this, and this is what I went thru when first tuning without the use of an exhaust gas analyzer,
WOT was 15afr, way lean should be 12.5 to 12.8, but lets say I don't have the numbers, but I THINK, it's lean, so go and put a larger
main in, brings it down to a 14afr. Well, by the seat of the pants, I felt more acceleration, but still lean, but without having done the diagnostics with the proper tools, how do I really know? Any way, this is what I went thru before I started to use an EGA. As a first time tuner, what did I have to go by? nothing! Granted it can get expensive to have some monkey wrench tech tune it for you, but if you are mechanically inclined, it's easy to do yourself. then the only cost is a
Dyna run with a EGA maybe twice?
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