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redblock distributor to coil on plug conversion

Uhhhhhh


man. no one's ever done that before. I don't think you can with a volvo, something about the helmholz resonances
 
You can't do cop/wasted spark with a 2.2 distributor either head or block mounted since there is no TDC information available. Unless you have both distributors then you can cut 3 of the slots off one of the hall sensors to make a TDC signal. I've thought about drilling and tapping the valve cover for a sensor to pick-up one of the cam lobes. The op has 2.4 and should just go wasted spark with a Buchka board.
 
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But since he’s on 2.4, there’s a 60-2 flywheel there, and he could snip off the 3 lobes on a hall distributor... but I don’t know if that head mounted distributor has those guts. But either way, a small bracket across the front of the cam pulley, a hall sensor, and a steel set screw on the cam pulley would do it.

Least expensive is going wasted cop, and with an ms2, the fuel side would still be way better than stock, even with batch injection.
 
cosbySweater said:
All of these solutions seem alot more difficult and time wasting then just buying a damn cas and adapter
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It?s 2018 bro. Time to venture into trying new things on these 40 year old cars. Explore ideas that haven?t been tried yet.*


*-If you cant bother to use the search function.
 
BDKR said:
+1 for useless answer.

At least VB's answer said why.



Good ****!
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He just meant that the type of sensor used has no bearing on the ability to run COP, Wasted COP, or full sequential. The kicker is the resolution and speed of the trigger. A simple 4 trigger at cam speed can't do wasted, cop, or sequential because it doesn't carry the resolution. Now bring up the resolution a bit, and you get the ability to do what he wants. Its all the trigger count, and speed. Personally, with the 60-2 is already there, this is already done. Wasted COP how it is, or add a TDC reset running at cam speed (single tooth all you need) and you get the ability to run full sequential... but hey, its all in the manuals.... Megasquirt is not a black art anymore with all the installs out there, its really not that hard. Not to mention that its all been covered in detail by DIYAutotune, hundreds of people on msextra, and hundreds more here, its just a matter of doing your homework and finding a tuner.
 
Has anyone ever successful run MegaSquirt on a redblock with a high count missing-tooth crank wheel (e.g. 60-2) and a cam sensor mounted in a different location? For instance, crank pickup off the flywheel and cam pickup off a modified distributor.

I ask because megasquirt seems pretty fussy about exact cam edge to crank edge alignment when using the redblock CAS adapter (a lower count, non-missing tooth setup). If the sensors are in two different locations, will all the mechanical slop between sensors be too much for MS to handle reliably? I'm thinking that the 2 sensors need to keep edge-to-edge alignment within 1 or 2 degrees throughout all conditions for MS to stay happy. Or is this only an issue with dual non-missing tooth wheels?
 
Yes. More importantly, there are many cars with the exact arrangement you've discussed and ms and other ecus do just fine with that info.

Megasquirt doesn't care what engine it's attached to.
 
from my understanding, the high res wheel with a missing tooth at crank speed (36-1 or 60-2), the cam trigger is just a reset, so you have a near 90* window to hit the reset button.
 
BDKR said:
+1 for useless answer.

At least VB's answer said why.
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No, VB?s answer addressed why the reluctor type won?t support a certain operating strategy. It was pointed out to you that the type of sensor used has no bearing on that. But go ahead and keep deflecting, everyone will still continue to point out that you have no idea what you?re talking about.
 
cwdodson88 said:
He just meant that the type of sensor used has no bearing on the ability to run COP, Wasted COP, or full sequential. The kicker is the resolution and speed of the trigger. A simple 4 trigger at cam speed can't do wasted, cop, or sequential because it doesn't carry the resolution. Now bring up the resolution a bit, and you get the ability to do what he wants. Its all the trigger count, and speed. Personally, with the 60-2 is already there, this is already done. Wasted COP how it is, or add a TDC reset running at cam speed (single tooth all you need) and you get the ability to run full sequential... but hey, its all in the manuals.... Megasquirt is not a black art anymore with all the installs out there, its really not that hard. Not to mention that its all been covered in detail by DIYAutotune, hundreds of people on msextra, and hundreds more here, its just a matter of doing your homework and finding a tuner.
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Wasted spark/cop only needs a TDC signal so it knows which coil to fire first. That's why you can't run it off simple 4 tooth Hall effect distributor, because it doesn't know which coil to fire off when you start.
 
bobxyz said:
Or is this only an issue with dual non-missing tooth wheels?
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Correct. On dual non-missing setups the cam edge is the TDC counter AND cycle marker. On missing tooth crank wheels with cam sensor the missing tooth is TDC counter and the cam edge is cycle marker.

With missing tooth and cam, the cam signal can occur any time within a 358 degree window of its respective cycle (assuming both edges don’t occur at the exact same time) and the ECU doesn’t mind.

This is why missing tooth crank with cam is the most preferable method of triggering in sequential operation.
 
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VB242 said:
Wasted spark/cop onlyneeds a TDC signal so it knows which coil to fire first. That's why you can't run it off simple 4 tooth Hall effect distributor, because it doesn't know which coil to fire off when you start.
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exactly, the only reason a tdc marker is needed is is to reset the count. So if you turned that 4 vane hall sensor into a one vane by clipping a few vanes off, and use that in conjunction with the factory 60-2 crank wheel.
http://www.msextra.com/doc/pdf/html/MS2V30_Hardware-3.4.pdf/MS2V30_Hardware-3.4.html
Page 98/201... lists the general combinations that work.
 
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