understanding the best way to write a configuration file

General Topics for configuring, operating and tuning the Megajolt. Also see the <a href="http://www.autosportlabs.net/MJLJ_V4_Operation_Guide">Operation Guide</a>

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paulc
Posts: 66
Joined: Thu May 01, 2008 10:49 pm

understanding the best way to write a configuration file

Post by paulc »

i built and tested my 'jolt setup many months ago and am just now getting to the tuning aspect.

one area i have always been a little hazy on with MJ is how to create a configuration file. of course, i understand how to create the actual file, but i mean how to tune the car to modify the file that best suites the car.

First off - a seemingly obvious (not to me) question:

1) can a TBS config file be used ona MAP based MJ?

with that out of the way - how are you guys doing it? By 'bums in seats' tuning?

I've seen the XLS config generator on the site, but am still not sure i understand what to put where.

Am i the only one who is a wee bit confused here? :o

DannyP
Posts: 417
Joined: Sun Apr 09, 2006 3:48 pm

Post by DannyP »

Here's what I did:

I started with the same curve as the centrifugal advance distributor(same values at all 10 load bins across the whole map). Because the Jolt/EDIS is so accurate, I ended up with 33 degrees max advance at 3000 rpm when I could only get 29-30 on the dizzy. I tweaked the off-idle response, which always had a flat spot, and fine tuned the start and idle advance to my liking. All by seat-of-pants tuning, adjust drive, either put it back or leave it, drive some more, etc.

Then I added the TPS curve, which is basically more advance(about 10 degrees) at light throttle(10-20%), tapering down to max centrifugal advance through the 10 bins. The part throttle advance tapers down to a minimum from the torque peak to both ends of the table(high and low rpm). So the most light throttle advance increase(similar to vacuum advance) occurs at peak torque.

I am on my fifteenth map, and it has taken a little time, but am very happy now. I have not done the temp compensation yet for Beta 3.3, although my sensor is in and my buffer circuit is installed. I need to put in the voltage/temp table and program the compensation.

I hope this helps you, and doesn't confuse.

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