Anybody here tune/work with a Speeduino?
 

Before I get flamed, I do believe in spending money on where it counts. I owned a MS3Pro for a reason. Over on Facebook, Speeduino is consistently recommended as an equal that fits between a ms2 and a ms3 for a fraction of the price. Some even advocate a MS isn't worth the money any longer. Have anybody here tune a Speeduino that can either state otherwise? The MS3 is expensive for a reason whether it's the addition features you get (VVT, E85, additional inputs/outputs), or its superior programming (flex fuel and idle controls) but how does it compare to the Speeduino? I would like to have some facts and professional opinions when I try to steer people towards a MS without talking outta my ass.

Download the firmware and base tune. Open them in Tuner Studios and check it out. At least I am pretty sure that they use TS for tuning.

They do. Just built one to handle fuel and ignition in parallel with the factory ecu on my f150. Wouldn't recommend running one as a stand alone. Not enough options for things like idle tuning.

Definitely won't be replacing my stand alone MS3X in my miata.

That's the kind of information I wanted to know. Reading the basic functions list provided by the Speeduino designer doesn't really give the whole story. a MS2 can do flex fuel but many people don't recommend it because it's not really great compared to a ms3. A speeduino can do flex fuel mapping as well but... you don't really know how well it works until you actually use it.

The problem with flex fuel on both platforms is the inability to blend tables. I don't want to be stuck adding 10 degrees across my entire ignition table. I want less than that at idle and more than that in other areas. I also want to target different air fuel ratios based on ethanol content. If you want to do flex properly you need a MS3.

I have one of the first beta MX5 PNP boards in my daily N/A NA.. no major issues. yes it lacks a lot of options and settings but it gets the job done for a 25yo engine with no added options or devices.

you get what you pay for and I LOVE the open source-ness. don't like something or want to add a function? dig in the arduino code and DYI!

Hmm...
 

I’ve been studying the speeduino Fb and wiki. I never plan to turbo, so wondering if the speeduino is worth a few ponies, since it allows for adjustability of mods, timing, fuel, as well as getting rid of the maf.
For 350$ all in, you can’t beat that adjustability. I really wanna pick it up for a set of ITBs.

SpeedyEFI is making and selling pnp units for all years and a 01-05 compatible one for 475$. That's a stupidly good deal if this ecu can manage a BP with reasonable results. I don't expect it to be at an ms3 level.

Link? I only see a 90-93 PnP.

The killer deal is the ability to build one yourself for $200. All appeal is lost for me at $475.

You have to contact him directly for anything other than na6 ecu's.

wow. very inexpensive option.
I am not looking for all the bells and whistles on a MS3.

so a 300$ price point for a tuneable PNP ECU is very attractive..

MS should come up with a simpler micro squirt.
that doesnt do everything.
but comes in at 300-400$.

Just remember that with anything you get what you pay for but you never get what you dont pay for. Sure MS3 is fairly expensive but the options and abilities it has are good. You may decide "I'm never turbo charging the car" now but what happens lets say two years from now when you're bored with it and want more? Or doing a VVT swap? It seems to me that having the ability to now will allow the option later on if you change your mind.

Why not just build an MS2/3 for slightly more than the Speeduino unit? If you were willing to buy a 200 dollar DIY unit, spending a few extra hundred wouldn't hurt.

FWIW I ran a Haltech Sprint 500 ECU in my 90 before going to MS3Pro and haven't looked back. I also have that Haltech ECU for sale with a Boomslang adapter harness to plug and play in a 1.6 if you're interested.

For 200 € it's unbeatable.
Has VVT support, flex fuel, boost control, launch control, flatshift, good resolution - everything the noob needs.

I own one myself (turbo car) and got it running okay in an hour.

Next options in Europe are MS3 mini and ME221, both starting at ~600+ €.

the problem is the amount of features I pay for ms3, and then won’t use, even if I turbo later. Never looking for more than 200hp. Speedy does this well and for way under budget.

I'm running a na6 pnp speedyefi speeduino. It works great and is easy to tune for beginners. I use ts, an aem wideband, a gm sensor, a bmw vtps and the pnp adapters. My car definitely gained some butt dyno hp. its worth what they ask for. if you're not looking to make 350+ hp, I don't see why you wouldn't want to use this unit.

Did you know the MS3 has 2 separate progressive nitrous controllers?.. and sequential fuel injection and COP support for V12 engines?
nothing want to use or plan to use or want to pay for.

i plan to go the speediuno option very soon and will post play by play results.
Just looking to remove the AFM and go COP on my 1.6 . If i gain 5-10 HP doing so then it will be the greatest 350$ you can spend on a 1.6 for power.

I wouldn't put the MS3 and a Speeduino in the same category, more considering a comparison between betwee a ms2 and speeduino. A MS2 is still 2.5x the price but function wise, how similar (or different) are they.

16×16 3D fuel and ignition maps, with base of either TPS (Alpha-N) or MAP (Speed Density)Supports up to 8 cylinders fuel and ignition with 4 channels of fuel and 4 channels of ignition outputs1, 2 (Even fire only), 3 and 4 cylinder engines with full sequential fuel and ignition6 (even fire only) and 8 cylinder engines are supported with wasted spark and 2 squirts per cycle6×6 3D individual cylinder trim on engines up to 4 cylindersAfter Start EnrichmentRev limiting (Spark based, hard and soft)Cranking specific enrichment, dwell timing and advanceGeneral logging through TunerStudioHigh speed tooth loggingTPS calibration through TunerStudioSensor calibration through TunerStudio (Coolant, IAT and O2)Warm Up Enrichment (WUE)TPS based acceleration enrichmentTacho outputFuel pump activation/deactivation (With priming)Over dwell and over duty protectionBattery voltage compensation for dwell and injectorsModular wheel decoder support. Included decoders:Missing tooth (Eg 36-1, 60-2 etc)Dual wheel (Evenly spaced teeth on crank, single tooth on cam)Basic distributorGM 7XGM 24X4g63 aka 4/2‘Jeep 2000’Audi 135Miata 99-05Honda D17 (12+1)Nissan 360Subaru 6/7Taking requests…Open and closed loop idle control (PWM and Stepper)Closed loop boost controlOpen loop VVT controlDeceleration fuel cut off (DFCO)Launch controlFlex fuelO2 based autotune (Registered version of TunerStudio required)

I could've googled the features myself to get that list but just because it can do something doesn't mean it can do it well. That was the original point of me creating this thread. In a real world scenario, how does it actually preform. I am actually thinking about using this in my EG Hatch budget build. $300 ecu vs a $700 hondata which is why I want to know.

Cool

Where can you get a $200 MS3 kit?

He meant if you could buy a Speeduino for $200, might as well spend another $300 and get a diymspnp pro

I downloaded their firmware and basetune and I am not pleased with the features it gives. If I was building purely a non street driven car and wanted to do so on the cheap, it seems decent. For a car that I plan to drive on the street it would be a hard pass for me.

On the speeduino there is no closed loop initial targets for the iacv. There are no idle ve, idle advance, or rpm timing correction to add or retard timing to give a more stable idle. I don't even see an ac idle up feature. Those are all features that are important to me. It does however offer vvt control so for that feature alone I would consider it over a ms2 for a track car that would use a vvt motor. But for a car that keeps ac or that goes on the streets it still seems like the ms3 would be better in every way besides price.

^ this. Very little control outside of bare necessities which I wouldnt recommend for a car you drive often or on the street. Spend a little more and get an ms2 at the very least. I wouldnt even say the speeduino is between an ms2 and ms3 even if it has VVT control, it lacks many other features.

also a DIYPNP Pro is not $500. a unassembled DIYPNP MS2 is right around $500. a pre-assembled is about $200 more. MS3 is about 900-1100. Pro is 1,200+.

Id say nowadays DIYPNP is bare minimum. There are lots of things youre missing when running the microsquirt board, but its at a great price point, and has enough to work well. I love the idea of speeduino, and I would like to fool around with one, but for a street Miata Id say bottom/minimum tier is DIYPNP. Anything less is going to be disappointing.

I got my speeduino installed in my 98 f150 around a week ago. Currently fuel only. Will add ignition control at a later date. So far it's been great. I definitely wouldn't want to run one in a stand alone miata application but it has its place.

I didn't say an MS3 kit was 200 dollars. I was saying that if the Speeduino unit is 200 dollars then why not spend a few hundred more and build an MS2 or 3. I corrected my original post.

1) you cannot compare PNP prices with assemble yourself kit prices.

2) from what i can see ms2pnp starts around 800USD speeduino is 240USD that's more than 3 times the price! "whats a few hundreds more?" for some people, A LOT!

3) everyone has his own needs :). its definitely possible to have a perfectly working daily street car, I don't understand the fuss about all these idle features. If I would put a value on adding those functions I'd say 50 usd more, not 560. but again, this is purely Subjective.
out of curiosity does the MS2 have all this?

You also cant compare a PNP MS to a PNP speeduino. Ive been working with Arduino dev boards and other embedded microcontrollers for many years and I can assure you that its not going to be a polished, easy-to-use, product. Even an assembled Speeduino setup will be pretty DIY, I dont see the assembly of a DIYPNP as remotely difficult compared to the setup and tuning of either of these ECUs.

The DIYPNP is under $500 and has features that I wouldnt want to be without on a street car with AC, varying electrical load, etc.

And yes, the MS2/microsquirt/DIYPNP does have those idle features mentioned by andym. Closed loop idle control, adaptive idle ignition advance, AC idle up, etc.

I can assure I'm driving my car every day to work.
I'm more of a software guy, soldering iron is not for me, so only PNP, thanks, and I believe it is the majority of car owners.. the tuner can take care of the tuning, assembling a board is a different matter.

where??

diyautotune.com

sorry I thought you meant the PNP ecu from DIYautotune... not the board kit with components to assemble. again. not comparable.

If we want to make a comparison purely from a cost perspective, why not also mention the ms3 mini that has replaced the ms2e from reverant?

Because it's also 3 times the price...

If you can't get your car to idle well in closed loop, you need to work on your tuning. I have my NA6 idling perfectly (except AC idle up since it doesn't have AC...) Open loop on my MS3x. For adding or removing timing for a stable idle, you just build that into your timing map, easy. My car sits between 750rpm and 950rpm depending gow mant lights and other things are on. And when it is just sitting there, it is rock steady.

Also, I poked at my friend's speeduino PNP (from AU) and it has everything you need for a basic setup. It will be a good baby's first ECU and tuning experiance it looks like. Only odd things I saw were that the spark map on whatever base map it has only goes to 100kpa and there is no table scaling or 3D or table smoothing options in tunerstudio with it? Though that may be cause he has the free version of tunerstudio?

Ive tuned cars to idle well with no IACV... That doesnt mean its worth giving up these features, especially on a street car with AC, PS, etc.

I'm adding the 2nd fuel table at the moment, which will allow more fine grained blending of things. Doing something similar for the ignition based on ethanol content is a good suggestion and something I will look at.

Yep, that needs the registered version of TunerStudio, then you get all those things.

The base map is an NA only one by choice. I can provide a turbo one as well, but those are slightly riskier as people just take them and run without making any changes, which is something you can get away with on an NA, but not so much on a boosted setup.

Just in terms of missing features, if you can make a case for something being needed I'll add it. Simple as that. As long as it's something that's adding genuine value and not just handling 1 persons niche setup, then I want to make life as easy as possible for people.
Personally I've never had a problem getting good solid idle on any of the Miata engines I've done, but I can see why some people like dedicated curves for idle ignition etc rather than just using the advance table. AC Idle up was added a couple of months back (though requires a jumper wire on the existing PNP units that are out there).

With the other models, I have a 64-pin NA8 board ready to go, I just need to find some cars to test on. NB8A ones are close, but again I need a test car. NB8B I haven't started on yet.

Awesome. Not being able to blend ignition tables based on ethanol is currently my most missed feature from my MS3.

I'm eagerly awaiting speedy knock as well. Thanks for the work you're doing.

Nice, I can't wait to find a cheap miata to practice tuning with.

Where can we find that?

Solid reasoning. And I registered my TS right when I got it, so never realized the table scaling wasn't part of the free one. Easy fix.

Only thing I can think of would be a MAP-Dot AE for NA6s. I have my NA6 running butter smooth on just mapdot with the MS3x, but I duno how many people will bother.

I am interested in the NB1 one. I have a 99 someone threw intake header and exhaust on and have been tempted to put an ECU in it.... Having time to get it in and tested would be a few months out though since I am in the middle of renovating and moving.

I've sucessfully installed and tuned 3 NA mx5's using Speeduino stand alone ECU's. The first one is a 1995 1.8 with an automatic transmission. The second mx5 is a 1993 1.6 with a Jackson Racing Supercharger and the third is a 1997 UK version with the 90 HP 1.6 motor. For what these MX5's have got the Speeduino is sufficient with the features it offers. I'm an experienced tuner and have tuned Honda's with B16's, B18's and K20's, EVO lancers with 1,100+ HP and Nissan R35 GTR's putting out 1,400+ HP with Motec's, DTA's, Link ECU's, AEM's, Haltech's. I recently got into tuning factory ECU's via reflashing through HP Tuners programming on a C6 Corvette with a twin turbo that so far has put out a very tame and streetable 800+ HP. I'll be putting the MX5's on the dyno soon to find out how much improvement we were able to achieve. So far the owners of the MX5's are more concerned with drivability and smoothness for the street.
IMHO every ECU has its own characteristics, quirks, and shortcuts which usually takes time to learn. Getting the best result in a reasonable time really depends on how familiar you are with the product, and how user-friendly the ECU is for you or for your tuner.
For a novice tuner I'd recommend the Speeduino for the MX5. When installing and tuning any brand of ECU, some level of tech support from the manufacturer or distributor will be an invaluable help. Since I never had any experience with Speeduino before it was very helpful that Chris Cashion of Speedy EFI made himself very accessible by answering all my questions about their product, and yes they do have an aircon idle-up feature which their website gives instructions on what to do to activate said feature amongst many others.
The price though is the clincher. $375 for a complete kit for the early NA MX5, while the ECU alone is only $260. The kit for the 1.8 NA MX5's is only $400 complete. For that price you'll still end up with enough funds to spend on other speed equipment for your MX5. It's worth a try.

Speeduino
 

hey man i just started with speeduino and i need help setting up my afr table for my turbo. Plz email me asap if you can thank you

Speeduino ffirst start
 

Hi guys having trouble with a speeduino ecu have done the initial setup and plumbed the vacuum line to the intake manifold I am running an innovate mtx-l wideband and I have a vtps installed, when attempting first start i have crank but it just wont start so i need to check my timing ? Sorry might be a noob question but I'm new the whole ecu tuning thing tia

attach your tune (MSQ) and a data log while cranking (MSL) :). by the way the speeduino forum is the right place to get help on this

Whenever it comes to things like "why wouldn't you get the best (most expensive) option", I always ask "what are their goals". I run a MS3Pro in my NB2, and frankly I don't think I'll ever take advantage of its full feature set. However part of my goals for the car was to make it reliable, and easy to find support for.


I had a 1990 Celica with a 4AFE engine. It was a 500$ car, and I figured a ~200$ ECU just to mess around with was perfect. I built the adapter harness for it, cut some teeth off the dizzy's wheels, swapped in a Volvo TPS, wideband and bam I had a lot of fun. It was terribly unreliable, and since no one else on the speeduino forum had run my motor much with a Speeduino, I was pretty much on my own. But as my goals were just to have some fun and try to eek out a bit more power, it was perfect.

I think that for the lower-end builds a Speeduino is perfect. If it can get the motor running properly, safely its just up to the owner to make sure that they stay within their ECUs limits.

Why does no one talk about RusEFI anymore?

Is it simply taking a while to start, or is it spitting, sputtering and doing starter kickback?

Spitting and sputtering:

First, double check your ignition timing on the crank vs the spark advance gauge in tunerstudio. Then, try turning your trigger filter from weak, to medium, and then to aggressive.


Just slow to start:
Its likely too much or too little fuel while cranking, try using flood clear mode, and if it starts easy with flood clear mode, reduce te amount of fuel while cranking. If it won't start at all with th throttle wide open, then add 20% more fuel and try again.

It has all those now.
I just bought the no2c version which has only two injector and ignition channels as well as the vvt boost control, auto tune etc.... Why only 2 channel? Because that's what the factory hardware is... 😁