Trus, but it's trivial to add the 36-1 wheel to an engine, and drop our crank sensor. At it's core, the SHO engine is conceptually no different than any other DOHC V6, there is no reason why Megasquirt would not be able to run it.
So why is Megasquirt not compatible with SHOs?
- Thread starter LJRuddy
- Start date
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gmail
Well-Known Member
so you also need to take off the crank sensor replace it with one of theres (for how much money?) and replace the crank sensor wheel?
does this replacement one line up or do you need to make your own ?
zblackbeast
SHOtarded
i have a question regarding the sequential fuel. without the Sequencer, would it run like regular EFI firing 3 of the injectors at a time or what? I dont know a whole lot about the electrical/tuning aspect of these motors yet.
Off Road SHO
Moderator
You'd have to mount the new trigger wheel on the crank somewhere. It can be anywhere as long as it rotates one revolution for every crank revolution. On custome flywheels for buggies, sometimes they screw a trigger wheel to the back side of the flywheel. This puts the wheel close to the block so that a sensor can count the teeth easily.
On other aftermarket applications, they bolt it to the back side of the dampener.
Without the Sequencer you would be settling for batch fuel injection. It's not a bad thing really; 95% of fuel injected cars today use batch fuel injection. Much simpler to design.
In my opinion, unless you NEED to have control over every little nuance of the motor's operation whether for performance or ego, you can't beat the stock computer.
Tom
ycode90
SHO Member
Tweecer plu and play . MS requires some fab and splice work more for custom SHO engine installs on high HP levels . Bang for buck Tweecer my .02
edit both require alot of tuning expierience to be used corectly and safe .
edit both require alot of tuning expierience to be used corectly and safe .
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gmail
Well-Known Member
im wondering myself about the CCRM.. is it completely compatible ?
im not against running the stock computer on MS in parallel but i dont wanna have any ill effects thats gonna require sitting around and screwing with stuff.
so far i am sold with the MS as long as it continues to progress with new features advancements and updates in software etc.
in reality i probley should just get one start messing with it myself and document my results.
im not against running the stock computer on MS in parallel but i dont wanna have any ill effects thats gonna require sitting around and screwing with stuff.
so far i am sold with the MS as long as it continues to progress with new features advancements and updates in software etc.
in reality i probley should just get one start messing with it myself and document my results.
Phoenix
SHOHOLIC
The CCRM is only a box of relays , which signals are sent from the ECU.
At least with the tweecer we have some people that knows them 100% (shonut , Axianator , NESHO guys , Yamasho and so forth). No its not perfect , far from it , but it delivers. Until MS does their homework , i'll keep my tweecer.
At least with the tweecer we have some people that knows them 100% (shonut , Axianator , NESHO guys , Yamasho and so forth). No its not perfect , far from it , but it delivers. Until MS does their homework , i'll keep my tweecer.
gmail
Well-Known Member
gmail
Well-Known Member
finally got around to installing it and it works great very pleased with it i ran it with the stock computer to keep fans and stuff so i didnt have to play with that stuff...
i didnt remove anything even ran it with the DIS system and everything..
without tuning it after i got it to fire (first try after i got my wiring taken care of)
i noticed right away the thing revved better then any SHO i seen before...
i didnt take it out on a test run since this was a parts car i installed it on but very pleased...
the software it awesome also make it a snap for anyone..
any question dont be afraid to ask since i dont feel like typing anymore right now
i didnt remove anything even ran it with the DIS system and everything..
without tuning it after i got it to fire (first try after i got my wiring taken care of)
i noticed right away the thing revved better then any SHO i seen before...
i didnt take it out on a test run since this was a parts car i installed it on but very pleased...
the software it awesome also make it a snap for anyone..
any question dont be afraid to ask since i dont feel like typing anymore right now
hawkeye18
Sorta cares
do you think there's any way we might be able to hear it revving? Perhaps take a video?
gmail
Well-Known Member
maybe next weekend sometime ill be able to, but i wanna go over the parts car first make sure its in ok order and be able to drive it around the parking lot...
last night i was tired and decided to head home so i disconnected the MS and packed the car away and took off.
last night i was tired and decided to head home so i disconnected the MS and packed the car away and took off.
MerkXRTurbo
New Member
This is awesome! I haven't run mine with MS yet, but it's cool to see someone who has. Once you get the tune dialed in (I assume you have all the necessary goodies, like a wide band o2 sensor, etc?) I'd be very interested at looking over your msq files. 
gmail
Well-Known Member
This is awesome! I haven't run mine with MS yet, but it's cool to see someone who has. Once you get the tune dialed in (I assume you have all the necessary goodies, like a wide band o2 sensor, etc?) I'd be very interested at looking over your msq files.
actually at the time being since im just playing around with it on a parts car im not gonna use wbo2 for it... when i go to put it on my 92 im gonna go with WB.
hopefully i can get a video here next weekend sometime ill try and go threw some of the process i went threw and stuff i setup to get it up and running for a SHO..
i think in the near future there will be the DIYPNP for SHOs which will be plug and play no splicing wires etc. fully sequential fuel injection and some other goodies...
i recommend checking out their website and seeing whats out and such..
It seems impressive after reviewing their site. From what I gathered its much faster than our current CPU and has abilities to control individual cylinders rather than the engine as a whole.
Conclusion, it should respond better than stock and maybe the only true aftermarket computer capable of releasing any sort of power out of the stock SHO engine.
The tweecer is nice, but its 20 year old hardware...
I doubt there will ever be a DIYPNP version for the SHO, just not enough people interested to justify them making it. However, even if there was, you'd still need a custom harness to really use the MS, the stock harness just doesn't have everything wired for fully sequential (ignition, for instance).
hawkeye18
Sorta cares
well if you combine the COP mod discussed in another thread with the MS, you might could do that! That would solve the ignition side of things anyway, the injectors wouldn't be too hard to rewire.
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Not to be a debbie downer, but the adage "if it ain't broke, don't fix it" comes to mind. Rewiring your injector harness, swapping to COP, just to run an unsupported computer that requires more modification of the wiring harness. Granted, if it can make reliable power that is head and shoulders above the Tweecer, I might consider it. But right now, what would one have to gain? That is not to say, do not do it. But like with the Tweecer, I will take the lazy guys approach and let other people be the groundbreakers, and then reap benefits from their hard work.
gmail
Well-Known Member
actually i can almost promise there will be one for the SHO since the SHO is eec-v or whatever... think of how many cars run that computer?
basicly all the DIYPNP is, is do it yourself, plug and play meaning all it really has over the normal MS is the fact you can plug your factory harness into it without cutting wires etc
gmail
Well-Known Member
Not to be a debbie downer, but the adage "if it ain't broke, don't fix it" comes to mind. Rewiring your injector harness, swapping to COP, just to run an unsupported computer that requires more modification of the wiring harness. Granted, if it can make reliable power that is head and shoulders above the Tweecer, I might consider it. But right now, what would one have to gain? That is not to say, do not do it. But like with the Tweecer, I will take the lazy guys approach and let other people be the groundbreakers, and then reap benefits from their hard work.
thats the thing tho you dont need to do coil on plug nor rewire your injectors to do it.. all i did was tap into probley 10 wires and it fired right up...
another one of the may advantages is you can use any injector no more having to be low or high imp injectors or whatever any injector will work fine.
as was mentioned you can use and ignition system as well, including MSD boxes wiring right in without needing anything special for them...
i know the theory of COP being better for a few things but the price tag of the coils hasent made me jump to the idea not to mention the fact i dont think you could upgrade the spark output
i looked around a little i noticed the Coil On Plug swap will still fire and everything the same as the factory setup since all your doing it removing the coil pack and replacing it with coil"s" think of it like taking the factory pack and cutting it up to each spark plug..
so in that reguard the tuning would be that of factory...
unless that is you wire it up some fancy way and want it to fire each and everyone by itself and not the wasted spark system that factory is
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