Megasquirt ms3+ms3x questions
12-04-10, 10:21 PM
#26
Senior Member
Is there any chance of getting some kind of simple EMOP control on MS3 in the not to distant future? In lou of the OMP feedback , maybe incorporate a simple test feature to be able to periodically check the EMOP hasn't crapped out? Just something basic would be fine. I could be wrong but I don't think even the more expensive haltech offerings use the OMP's feedback abiliy for position checking but just treat it as a stepper motor.
12-05-10, 03:43 AM
#27
You must be using the same weird math figuring on the sprint RE vrs. MS3 as calculating your BHP figures.
Apart from the seq. injection there's nothing special about it, you only get 2 programmable outputs. I don't see any mention to control the EMOP,which you would think would be included in a "RE" specific version on an aftermarket ecu.
I'm curious what real advantage you think you're going to get using seq. injection on a rotary, does that old FB need to pass stringent emissions?
From the looks of it haltech is trying to compete against the megasquirt with that offering. The only problem feature wise and I'm guessing resolution wise, it can't hold a candle to a MS3/3X. it must at least be a "fully polished product" then?
Apart from the seq. injection there's nothing special about it, you only get 2 programmable outputs. I don't see any mention to control the EMOP,which you would think would be included in a "RE" specific version on an aftermarket ecu.
I'm curious what real advantage you think you're going to get using seq. injection on a rotary, does that old FB need to pass stringent emissions?
From the looks of it haltech is trying to compete against the megasquirt with that offering. The only problem feature wise and I'm guessing resolution wise, it can't hold a candle to a MS3/3X. it must at least be a "fully polished product" then?
I'm planning on trying a whole bag of things done to this car over the following years.
Better injection points, larger throttles of the correct size, better staging, Injection timing. Greater volume of water injection. More compression, both bigger and smaller ports on both intake and exhaust. Better intercooler.
As is I think I can claim to have the widest powerband street driven 12A in probably the world. Not too many people run 18psi on high compression mild port motors using E85 fuel and water injection with such a small turbo combo.
12-06-10, 09:56 AM
#30
MegaSquirt Mod
@nosferatu: I have a test S5 OMP that I can test with that I got for that purpose. I will have to see if I can fit it in for 1.1. I would not consider it full support without the position feedback.
@Ludwig: A prebuilt MS3+MS3x+v3.57 mainboard is $640. With a DIY mainboard, you get the same features for $365 for the mainboard+ms3 and $90 for the ms3x, so a little more than half the price with the cheapest fully featured option. I think our feature list and amt of I/O is larger too if I am not mistaken. For the feature list, if it isn't quite there yet, we are actively developing it in any case.
Ken
@Ludwig: A prebuilt MS3+MS3x+v3.57 mainboard is $640. With a DIY mainboard, you get the same features for $365 for the mainboard+ms3 and $90 for the ms3x, so a little more than half the price with the cheapest fully featured option. I think our feature list and amt of I/O is larger too if I am not mistaken. For the feature list, if it isn't quite there yet, we are actively developing it in any case.
Ken
Last edited by muythaibxr; 12-06-10 at 09:58 AM.
12-06-10, 03:58 PM
#31
MegaSquirt Mod
Looking at the feature set, that haltech looks pretty limited compared to MS3 both in I/O and actual features.
We have the hardware to support up to 4 rotors, and I'll be adding support for COP leading/trailing on up to 4 rotors at some point.
We have the hardware to support up to 4 rotors, and I'll be adding support for COP leading/trailing on up to 4 rotors at some point.
12-07-10, 11:04 AM
#32
@nosferatu: I have a test S5 OMP that I can test with that I got for that purpose. I will have to see if I can fit it in for 1.1. I would not consider it full support without the position feedback.
@Ludwig: A prebuilt MS3+MS3x+v3.57 mainboard is $640. With a DIY mainboard, you get the same features for $365 for the mainboard+ms3 and $90 for the ms3x, so a little more than half the price with the cheapest fully featured option. I think our feature list and amt of I/O is larger too if I am not mistaken. For the feature list, if it isn't quite there yet, we are actively developing it in any case.
Ken
@Ludwig: A prebuilt MS3+MS3x+v3.57 mainboard is $640. With a DIY mainboard, you get the same features for $365 for the mainboard+ms3 and $90 for the ms3x, so a little more than half the price with the cheapest fully featured option. I think our feature list and amt of I/O is larger too if I am not mistaken. For the feature list, if it isn't quite there yet, we are actively developing it in any case.
Ken
What's your warranty like? Is a harness included in your pricing?
12-07-10, 02:02 PM
#33
Senior Member
The harnesses are extra, I'm pretty sure if you buy a completed unit from the major supplier and it's defective they'll warrenty it. Does haltech have a U.S. repair? So if you were an aussie looking to pick up a MS or the other way a north american looking at a microtech for example ,or something that requires shipping 6000 miles away. One might have other thoughts to what ecu they want to consider.
The other thing to consider is that these are being feature extended on a regular basis,whereas that haltech is it. What if you need/like more functionality down the road, buy a new haltech and possibly replace with a whole new harness if the connectors aren't compatable between models? Obviously the down side is,it's more DIY and the learning curve is steeper in most cases.
I wouldn't compare this to a MS3, it's closer to a MS2 feature wise ,which is another couple of hundred dollars cheaper.
It may be more attractive if Haltech made a "RE" specific version that at least controls the elec. MOP don't you think? Kind of lame without that feature since any rotory after 1988 came equiped with one,especially since they tout it to control the RX-8 igniton. I'm sure RX-8 owners feel like pre-mixing.
The other thing to consider is that these are being feature extended on a regular basis,whereas that haltech is it. What if you need/like more functionality down the road, buy a new haltech and possibly replace with a whole new harness if the connectors aren't compatable between models? Obviously the down side is,it's more DIY and the learning curve is steeper in most cases.
I wouldn't compare this to a MS3, it's closer to a MS2 feature wise ,which is another couple of hundred dollars cheaper.
It may be more attractive if Haltech made a "RE" specific version that at least controls the elec. MOP don't you think? Kind of lame without that feature since any rotory after 1988 came equiped with one,especially since they tout it to control the RX-8 igniton. I'm sure RX-8 owners feel like pre-mixing.
12-07-10, 04:32 PM
#34
MegaSquirt Mod
There isn't an explicit warranty, but if there's a problem due to manufacturer defect or similar, DIY/B&G generally take care of you. DIYautotune has good tech support too.
Repairs for problems that are not defects are not that steep either price wise.
I wasn't including a harness in that price, but full harness is $65+$78 (actually 2 harnesses). (Didn't occur to me to include since I made an adapter to connect to my rx7's stock harness).
nosferatu makes a good point though that feature comparison wise, they are closer to the MS2 than MS3, and that is significantly cheaper. MS2 won't do seq on a rotary but does most of the rest of what they specify.
In the US, most RX8 owners premix anyway even with the electronic MOP since Mazda specifies 5W20 oil in the US which isn't really thick enough IMO.
I own an RX8 myself, and I premix a small amount. A huge number of people also premix ~6oz per tank.
As far as supporting the RX8 on the Haltech goes, do they support the throttle by wire functionality? I didn't see it listed in the feature set. MS2/MS3 don't support it either (I don't particularly want to either), but we do support the e-shaft angle wheel and COP outputs with trailing split on the 8.
Ken
Repairs for problems that are not defects are not that steep either price wise.
I wasn't including a harness in that price, but full harness is $65+$78 (actually 2 harnesses). (Didn't occur to me to include since I made an adapter to connect to my rx7's stock harness).
nosferatu makes a good point though that feature comparison wise, they are closer to the MS2 than MS3, and that is significantly cheaper. MS2 won't do seq on a rotary but does most of the rest of what they specify.
In the US, most RX8 owners premix anyway even with the electronic MOP since Mazda specifies 5W20 oil in the US which isn't really thick enough IMO.
I own an RX8 myself, and I premix a small amount. A huge number of people also premix ~6oz per tank.
As far as supporting the RX8 on the Haltech goes, do they support the throttle by wire functionality? I didn't see it listed in the feature set. MS2/MS3 don't support it either (I don't particularly want to either), but we do support the e-shaft angle wheel and COP outputs with trailing split on the 8.
Ken
Last edited by muythaibxr; 12-07-10 at 04:35 PM.
12-19-10, 08:52 AM
#35
The mega suppliers such as DIY have probably the best warranty program I've come across. That is a non issue. Even better the ECU is user repairable!
Past that I did something really bad a few years ago, a +12V live unfused test wire FELL onto my MS2 daughtercard while I was driving.
The car simply stalled. It happened AGAIN
And the protection circuit did its job. The entire list of toasted parts was a 10cent zener diode.
Not much worse can happen than that.
Past that I did something really bad a few years ago, a +12V live unfused test wire FELL onto my MS2 daughtercard while I was driving.
The car simply stalled. It happened AGAIN
And the protection circuit did its job. The entire list of toasted parts was a 10cent zener diode.Not much worse can happen than that.
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