DIS on a type IV, Well this got me revved up |
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DIS on a type IV, Well this got me revved up |
DNHunt |
Jul 13 2003, 09:30 PM
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914 Wizard? No way. I got too much to learn. Group: Members Posts: 4,099 Joined: 21-April 03 From: Gig Harbor, WA Member No.: 598 |
The next incarnation of MegaSquirt, ULTRAMEGASQUIRT is going to have onboard DIS and a driver for the Bosch LS4u wideband 02 sensor. The whole package on 1 board. I can hardly wait. Imagine no more worrying about a dirty dizzy, springs, putting oil on the felt, vacuum advance. Time it once and forget about it (course that one time is gonna be b***h). Run better gas and a hotter chip for the track with a little more advance.
The whole system will use real automotive connectors, no more DB 37 pin connectors. Sounds like the little kid on the block is growing up. Anyone have a crank trigger on their 4? The only spot I can see for one is replacing the spacing washer behind the fan with a machined trigger wheel. It appears that you could mount the sensor off the studs that attach the oil cooler This is gonna be one long winter. I got a s**tload of things to do. Dave |
airsix |
Jul 14 2003, 11:21 AM
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I have bees in my epiglotis Group: Members Posts: 2,196 Joined: 7-February 03 From: Kennewick Man (E. WA State) Member No.: 266 |
A few gotcha's to watch for if you are going to try using the flywheel:
1) Where are you going to mount the sensor? 2) Will your magnet/sensor combo provide the ECU with a sufficient signal width? What I mean is, that the farther you move the magnet/sensor from the centerline of the crank the less time the magnet will activate the sensor with each pass. My ECU requires each sensor event to be maintained for about 4 degrees of crank rotation. Using the hall sensor and magnets I have on hand (same as unit sold by SDS) this means the sensor can't be more than about 4 inches from the centerline of the crank (ie. an 8" wheel/ring) or the trigger event width falls below 4 degrees of crank rotation and at higher RPM the ECU will start dropping sensor events. You could get around this by using larger magents that held the signal longer on each pass, or by using another type of sensor. What do the late P-cars use? Is it adaptable? -Ben M. |
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