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I'm suggesting that you go with 30-32 degrees total on your RPM ignition map, starting with a base around 20 at idle, progressively raising that to 30-32 by 2800-3K RPM, them run that all the way to redline.
Running at base boost, you really shouldn't find it necessary to retard timing at these levels of boost, if using good fuel, but do so, if necessary.
This should be a decent curve, that will be safe, leave it there until you work out the fueling, after that, start tweaking the timing. Try to work on just one thing at a time. First plug in a decent timing curve, then work with fuel at RPM, then fuel at load. Get the fuel at RPM stuff close and the fuel at load will be easier to work out.
Use whatever you feel comfortable with for your timing curve, if you really want to start with something similar to stock, try using 20-24 across the board for your RPM values, add 10-15 degrees from idle to around 10" of Hg, then taper that to zero at atmospheric. This will add timing at idle and cruise. Mine idles well at 30-32 degrees advanced, but if you find that is to much, take some out at your idle RPM values, leave the load values alone.
I don't know anything about the Wolf system, if it has a separate program for idle all this stuff would be a little easier. SDS doesn't, so anything that falls within the load ranges for idle also falls within some of the cruise ranges, so one thing effects the other.
You'll probably find trailing throttle an issue, especially below 2K, retarding timing about 10 degrees at loads below your idle range may help, also cut fuel about 2 ranges below idle.
It's hard for me to relate to % of load, using manifold pressure for a reference is easier. One thing that has me a litle confused is if zero pressure (atmosphereic, 14.7 absolute) is 43% load, this seems like the system would fall out of it's range around 20 psi of boost.
Do you have a knock sensor hooked to the system or are you going to use APC to care of that?
posted by 216.128.13...
, Sat, 4 May 2002 18:53:44
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