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Old 08-26-2012, 10:06 PM   #41
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It would be great to have Alternator constrained by TPS too. Ideally you'd want the alternator only working under light or no-load (engine) conditions.
So you kill your battery every time you go WOT? Sounds retarded
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Old 08-26-2012, 10:33 PM   #42
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So you kill your battery every time you go WOT? Sounds retarded
Do you only drive "Flat Out"? Ever think about recharging during decelleration? How about when throttle steering at mid corner?

On a road course I'm rarely under 4,500 RPM so I could care less about RPM based Alternator control. I have however strongly considered going full loss, and getting rid of my alternator completely. That's a PITA logistically, so I'd rather choose to have my alternator NOT rob me of power at WOT. There's plenty of time on a road course, AutoX event to keep your batt charged at <50% throttle.

Last edited by Ski_Lover; 08-26-2012 at 10:58 PM.
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Old 08-26-2012, 11:07 PM   #43
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When my alt was dying in my celica, WOT would cause misfire because just the battery didn't have enough juice to make a good spark.

I think full throttle you wouldn't want to pull just from the battery. You would only gain a couple HP anyway.
Maybe good for a drag race?
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Old 08-27-2012, 03:10 AM   #44
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Does speed sensor work with the analog speedo cabled cars?
Somehow magically reading from the gauge cluster.
It should on the 94-97, since there is a wire going from the cluster to the ECU, specifically for this purpose (green/red wire). I don't think there is one on the 90-93.
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Old 08-27-2012, 03:12 AM   #45
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Originally Posted by golftdibrad View Post
When will these be available? looking to buy a MS in the next week, or at least place the order for one.
I ordered 50 boards just yesterday, they should be here in 10-15 days. I will be switching current productions and orders to the updated ECU once I receive them.
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Old 08-27-2012, 03:13 AM   #46
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Originally Posted by Ski_Lover View Post
It would be great to have Alternator constrained by TPS too. Ideally you'd want the alternator only working under light or no-load (engine) conditions.
I know a few cars that do this, but only for short periods of time. I would think that you would need to have a large-ish battery though. Not difficult at all to implement, I may do it.
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Old 08-27-2012, 06:36 AM   #47
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I ordered 50 boards just yesterday, they should be here in 10-15 days. I will be switching current productions and orders to the updated ECU once I receive them.
Will these only be 01+ boards or are they also the 99-00?
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Old 08-27-2012, 06:38 AM   #48
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These boards are for the current line of ECUs, not the next generation, and are for 90-05.
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Old 08-27-2012, 06:46 AM   #49
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Ah o.k., I am waiting for the "Next Generation" then...
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Old 08-27-2012, 09:07 AM   #50
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Thumbs up I like it - where do we send...

...the money.

This generation sounds like it will be just dandy for my application.

Put me on the "LIST".

Thanks.

M.
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Old 08-27-2012, 09:40 AM   #51
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But I haven't finished showing all the new features yet!

Boost by gear!



First select if you want to control boost by the two maps (which, on the Enhanced MS2 you can select through the external boost control switch) or do boost by gear, or both.

If you select boost "By map", then boost is determined by the active boost map only.

If you select boost "By gear, absolute", then the following cells determine the absolute boost levels:



If you select boost "By gear, additive", then the values in the cells above are added to the boost level dictated by the map - so the maps set a baseline boost level, and you can increase the boost with each gear.

Then, if you have boost by gear enabled, you can enable "Scramble boost", and when you hit the external boost control switch, you can temporarily increase boost by a fixed amount defined in the window above or set the final boost level to ALLOFIT.

The store is open, taking orders now.
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Enhanced Megasquirt - now with more features!-ems2_boost_settings.png   Enhanced Megasquirt - now with more features!-ems2_boost_by_gear.png  
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Old 08-27-2012, 09:44 AM   #52
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Quote:
Originally Posted by AkaZero View Post
Does speed sensor work with the analog speedo cabled cars?
Somehow magically reading from the gauge cluster.
cluster converts it to digital and sends the singal to the stock ECU on the 94+.

It does it for the 90-93, but you have to run the wire back. My MS3x is prewired to accept the signal and I have the software ready to go, but I need to get time to run the signal back to the computer from the cluster.


Reverent, love boost by gear.

Here's something you might want to add: VSS launch control disable, so if the MS sees youre moving X mph, it wont allow clutch slips to engage LC. I have to keep my TPS% threshold pretty high when I have LC turned on so when I'm shifting and slipping the clutch it doesn't hit the limiter. I realize I could just turn on flatshift with a higher limit, but just a thought. This would be good to be able to lower the tps% threshold so I dont need to go WOT using LC as that's too agressive...
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Old 08-27-2012, 09:58 AM   #53
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OMG......

So much win.

.....Can't wait for the MS3 version of this.
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Old 08-27-2012, 10:37 AM   #54
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Originally Posted by Reverant View Post
I ordered 50 boards just yesterday, they should be here in 10-15 days. I will be switching current productions and orders to the updated ECU once I receive them.
Thanks. Will weight options, PM sent!
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Old 08-27-2012, 12:41 PM   #55
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Quote:
Originally Posted by Reverant View Post
I know a few cars that do this, but only for short periods of time. I would think that you would need to have a large-ish battery though. Not difficult at all to implement, I may do it.
I think this would be an outstanding feature for the AutoX community. Perhaps road racers would set TPS to something more like 75%.

For those of us without FI, those of us who pay more dearly for every last hp, this feature would be very attractive.

Cheers,

Craig Northcutt

PS. W/a little more complexity you could override this feature with a low voltage threshold.
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Old 08-27-2012, 07:47 PM   #56
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Holy **** I better start making buttons and switches, as I am going to need a bunch for when I get one of these.
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Old 08-28-2012, 12:57 AM   #57
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I need to get on this and order one of these finally...
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Old 08-28-2012, 04:06 AM   #58
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Quote:
Originally Posted by Ski_Lover View Post
For those of us without FI, those of us who pay more dearly for every last hp, this feature would be very attractive.
Remember that the Alt gives you 14.x V, the battery only 12 V.
There will be a difference in spark/injector/pump behavior (which you can tune for of course, or add a smart modifier that kicks in when you kill the Alt).

Alt-less systems for fuel injected seems to choose 16V batteries, at least for about 1 minute run time. E.g.

Last edited by NiklasFalk; 08-28-2012 at 04:24 AM.
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Old 08-28-2012, 12:58 PM   #59
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Originally Posted by NiklasFalk View Post
Remember that the Alt gives you 14.x V, the battery only 12 V.
There will be a difference in spark/injector/pump behavior (which you can tune for of course, or add a smart modifier that kicks in when you kill the Alt).

Alt-less systems for fuel injected seems to choose 16V batteries, at least for about 1 minute run time. E.g.
Good points. The ECU may not be happy either.
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Old 08-28-2012, 01:49 PM   #60
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Quote:
Originally Posted by Ski_Lover View Post
Good points. The ECU may not be happy either.
The injector deadtime is corrected with voltage, albeit on a single linear scale.

The ignition coil dwell is also corrected with voltage, with a proper table.

The ECU will happily work with anything above 7.5V.
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