which ms is most suitable for the following...

[turbo4ag]

first to introduce myself...names ethan and i have a 91 corolla 4door, roll cage, fuel cell, aluminum dash, basically setup for drag, road course....powerplant is a late 4age bigport, forged 4agze bottom end, fully built head, t3/t4 hybrid holset turbo, blah blah blah

k i have a jdm map distributor for this motor with a 24 tooth crank sensor in the bottom of the dizzy and a 4 tooth cam sensor...i cut the shaft and made a flat plate to eliminate the cap and rotor...i want to know if i can use these sensors for my MS sensor inputs

i plan to use the mapdaddy and relay board to wire my car...along with using two wire coil on plugs...no idle up cuz its a track car...i will wait till it gets warm lol...the car is bare of all factory wiring...im pretty well versed in electronics as my father is a elec engineer and tech...so im not worried about the wiring

list of questions

can i utilize the modded dizzy for my crank and cam input for MS
which model MS is most suitable for my needs (i want to use mapdaddy and megaview)
are there any basemaps for 4age i can go off and modify or is it pretty much from scratch

[turbo4ag]

any and all help is much appreciated as i am extremely new to MS...not to electronics so im not retarded...but need guidance for this new endeavor of mine

thanks
ethan

[Matt Cramer]

first to introduce myself...names ethan and i have a 91 corolla 4door, roll cage, fuel cell, aluminum dash, basically setup for drag, road course....powerplant is a late 4age bigport, forged 4agze bottom end, fully built head, t3/t4 hybrid holset turbo, blah blah blah

k i have a jdm map distributor for this motor with a 24 tooth crank sensor in the bottom of the dizzy and a 4 tooth cam sensor...i cut the shaft and made a flat plate to eliminate the cap and rotor...i want to know if i can use these sensors for my MS sensor inputs

This is something of a screwball sensor arrangement; the only one that will support using both sensors as Toyota used them is MS3. All MegaSquirt variants can be used with either the 4 tooth wheel working on its own or the 24 tooth wheel with one tooth filed off.

can i utilize the modded dizzy for my crank and cam input for MS

See above.

which model MS is most suitable for my needs (i want to use mapdaddy and megaview)

I'd probably say MS2 for MegaView compatibility, which is not confirmed with MS3.

are there any basemaps for 4age i can go off and modify or is it pretty much from scratch

There are a few fuel and spark tables on our site, but with those mods, you should only consider a base map a VERY rough starting point. You're going to have to tune this thing on your own to match YOUR specific set of mods.

[turbo4ag]

thanks matt for the pointers...ive been reading up alot and found that ms3 is great but its got tons of features i will never use making it useless for me to spend the extra cash on

so in ms2 software 3.0 i could have one tooth milled off the 24tooth wheel in the dizzy and just cut the rest of the shaft off balance it out and eliminate the rest of the bs in there leaving one vr sensor and a 24tooth wheel missing one tooth for a reference point

i dont want to use a crank trigger due to the fact my car is slammed and no splash sheilds as its mostly a track car so i need much venting for the bay...didnt want dirt, water, ect to effect a crank triggers reading ability...


as for the maps yes i will be using them just really to get a start up sequence...from there im good...i have tuned ostrich and chrome for my friends hondas so i can tune a map...but have never made one completly from scratch so that did make me somewhat nervous lol

last newb question i think haha

do i really need the relay board?? cant i just run the harness from ms to my engine...and since its a track car set my fuel pump on a switch...i have no factory wiring in this car mind you...its gutted and caged...all my gauges run on their own power circut i ran

because from what im reading....the relay board is for fuel pump, efi, and idle up....cant i just go with my original plan and have those two on a fused circut to direct power and go through my key cylinder...or do you have to have a relay on these components??

[Matt Cramer]

Yes, you can run it on the 24 tooth wheel if you file a tooth off it. Normally, the imbalance isn't big enough to be an issue.

We usually mostly recommend the relay board for cars never wired for EFI - it can be convenient then, but is by no means essential.

[turbo4ag]

i would have the shaft balanced anyway after it is milled a tooth off...just to retain reliability as is sits in a small bearing and is cam driven

as for the relay board...it would be appealing if it had some sort of connector for the harness as opposed to a screw terminal bus design...just maybe a future upgrade for the board that would make it more marketable for in-engine mounting

thank you for all the help
ethan