MicroSquit Conversion, Giving this a try |
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MicroSquit Conversion, Giving this a try |
Mblizzard |
Oct 3 2016, 07:18 AM
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#1
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Advanced Member Group: Members Posts: 3,033 Joined: 28-January 13 From: Knoxville Tn Member No.: 15,438 Region Association: South East States |
I am pretty happy with my stock FI. But after seeing some of the setups at Okteenerfest, I thought this might be worth trying.
The stock system is not easy to modify and get things running correctly. I spent a lot of time making minor adjustments by trial and error. While I am not looking for huge HP gains or anything, it is pretty clear that the mods I have could potentially benefit from a bit more precise control. Going to start with fuel only at this point to get things going and see where it leads me. Any help or suggestions for set up would be appreciated. |
PlaysWithCars |
Oct 3 2016, 09:34 AM
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#2
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Senior Member Group: Members Posts: 523 Joined: 9-November 03 From: Southeast of Seattle Member No.: 1,323 Region Association: Pacific Northwest |
Mike, I think you're concern is justified about using the stock dizzy as an inferred crank position sensor. I would not do it. Particularly if you have vision to expand and ultimately use MS for ignition control as well. You would ultimately be installing a crank trigger wheel and sensor anyway.
There is huge potential for improved drivability, performance, and economy if you have 3D mapping capability for both fuel and ignition. I believe that the factory FI system has a 3D map already for fuel (using points in the dizzy for engine speed and manifold pressure for load sensing) but the distributor really only knows engine rpm. The vacuum canister does not do a good job reacting to load; it's primarily an emission device. You're right to step into it one system at a time, but I would definitely plan to include ignition in your project. FYI I'm currently in the process of adapting a MegaJolt system, which is an ignition only variant of MS, onto the 2.4 MFI engine in my car. I tried tuning the ignition and the MFI at the same time but kept running into situations where i didn't know which system was at fault for running problems. I've now gone back to a distributor until I get the MFI tuned, then I'll start on the ignition again. |
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