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post #1 of 4 (permalink) Old 03-02-2017, 05:43 AM Thread Starter
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Location: North Liberty, Iowa
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Well I'm in mid assembly of my first MegaSquirt build and so far things are going well (fingers crossed, knocking wood). The assembly directions have been top notch, some of the testing instructions are not quite so good, but I've managed so far.

I'm building this for my ChumpTV6 2.5 with RJR cams, port work, headers etc. I'll be batch firing the injectors and controlling spark using the stock distributor. Anyone have a basic tune I can start with?
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post #2 of 4 (permalink) Old 03-02-2017, 06:33 AM
Richard Jemison
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MS tuneing

Send Dr. Al Mitchell an email. He is the expert on MS and can provide such. His email:

Richard Jemison
RJR Racing

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post #3 of 4 (permalink) Old 03-02-2017, 08:50 AM
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The fuel map is dependent upon the basic fuel setup and the size of the injectors. The numbers in the cells are a percentage of 100% flow. You are welcome to my map when I return home next week. It is for a 3L motor but the overall shape will be the same. For a race motor you only need to get the top 3 rows and the lower left quadrant right. Ignition control is more complex.

Ed Prytherch
79 Spider
85 GTV6 3L
76 Suzuki GT500

A little government and a little luck are necessary in life, but only a fool trusts either of them. - P.J. O'Rourke
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post #4 of 4 (permalink) Old 03-02-2017, 10:27 AM Thread Starter
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thanks guys!
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