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-   -   What's wrong with Voodoo? (https://www.miataturbo.net/prefabbed-turbo-kits-3/whats-wrong-voodoo-76179/)

18psi 01-01-2014 02:31 PM

I'm going to go buy a horse because internal combustion engines are just way too complicated and frustrating to tune.

EO2K 01-01-2014 02:35 PM

Fuck man, that's the scariest 1hp I can possibly imagine. Of course you will be running ALLOFIT all the time

mlev 01-01-2014 02:55 PM

Well, I bought an MS2E, and I'll be picking up my wideband and boost gauge this weekend. I'm leaning towards the Begi-S kit now.. seems to be all the same high-quality stuff, but for about $1000 less, which is nifty.

I'm planning on tuning N/A, then throwing the Begi-S kit in, tuning with that, then when I get hungry I can go injectors and I/C and go for a bit more power.. then a bit more.. then do meth... err, i mean install meth injection, and go a bit more power... or whatever.

DNMakinson 01-01-2014 03:07 PM


Originally Posted by Cody Strife (Post 1087605)
The closest tuner I know would be top speed tuning in Alpharetta Georgia, but I doubt he does Megasquirt. So I am screwed... I probably have to drive 500 miles to get my car to a Megasquirt dyno tuner lol.

From Matt Crammer:

Two we've often worked with in the Atlanta area are Balanced Performance and Forged Performance

DNM

Cody Strife 01-02-2014 01:48 AM

I agree with the earlier post made, the real problem lies in that most folks want to pile more and more power expectations on a device that isn't really intended to push pass 6-8 psi.

And I have seen it...

Voodoo box+adjustable fpr+supra injectors+msd...

Lol, that is simply too much crap and too many points of failure...

Braineack 01-02-2014 10:02 AM


Originally Posted by Cody Strife (Post 1087601)
If you are wanting an easy to install, hassle-free fuel management unit that will work well with the ECU, maintain your OBD-2 readouts, keep your air conditioning, and all the hard work that is put into making a car crank immediately in adverse temperatures and conditions without flooding the engine or repeated cranking attempts, then, contrary to what most people will say, the voodoo box is an economical choice and a reliable good working choice at that.

Sounds like you don't know how to tune. Don't blame the ECU because of your failures--that's not fair.

I say this as a person who's owned 1 miata.


voodoo is a great solution for someone with a turbo kit that wants to run less power than my farts can dyno.

Meeners 01-02-2014 11:09 AM

If your farts can turn a drum showbusiness is your calling - however, it's a hard act to sell because of the smell.

Leafy 01-02-2014 11:10 AM


Originally Posted by Meeners (Post 1087830)
If your farts can turn a drum showbusiness is your calling - however, it's a hard act to sell because of the smell.

You've obviously never experience a brain fart.

Meeners 01-02-2014 11:11 AM


Originally Posted by Leafy (Post 1087831)
You've obviously never experience a brain fart.

My short term memory is worse th.... Fk what was I going to say.

Cody Strife 01-02-2014 02:59 PM

True, I never could alter the maps, I don't know how to tune, lol. Do you guys have instructions available for tuning megasquirts with a wide band, cause I would definitely give it shot.

EO2K 01-02-2014 03:12 PM

I actually found the parts with the maps to be the easy stuff with the MS (and TunerStudio of course) as I tend to be very visual. The hard part for me was figuring out what all the other functions were that were fucking with me and adjusting things in the background and fighting TS while I was trying to get a solid fuel map put together. Too many acronyms and too many functions that had been renamed and moved around in the interface. I spent over a week trying to find the GAIR table only to learn later that it didn't exist in my DIYPNP. That's what'll drive you nuts with the MS. So many generations with so many different settings makes finding a guide that applies to your unit a real challenge.

18psi 01-02-2014 03:15 PM


Originally Posted by Cody Strife (Post 1087916)
True, I never could alter the maps, I don't know how to tune, lol. Do you guys have instructions available for tuning megasquirts with a wide band, cause I would definitely give it shot.

There is not only numerous manuals and write ups, but even a complete forum dedicated to this exact thing.

And before you ask: yes it absolutely requires quite a bit more effort on your part than opening a booklet that tells you how to turn 3 knobs and you're done. That last part is what turns people like you off, and they just reject the whole thing, and resort to crappy band aids invented in the 80's before people took fuel injection seriously. But if I'm putting parts on my car, I want to make sure they're at least as new as the car itself and not old outdated mediocre parts.

triple88a 01-03-2014 01:26 AM

If you cant find a manual on MS then you have different problems.

achervig 01-25-2014 02:20 PM


Originally Posted by Mmn710 (Post 1086931)
Gotcha but on the bright side I pass inspection with no problem which is nice about the voodoo box

I'm in the exact same spot as the OP, doing lots of research, reading everything I can get my hands on right down to the recommended books, and I'm still unclear on this point:

Is a piggyback ECU like the Voodoo box the only way to pass emissions?

I've got cash burning a hole in my pocket and I've decided on the FM kit, and I'd like to run MSPNP with it. But, I have to pass emissions every March.

achervig 01-25-2014 03:22 PM

Okay so I had looked on the manufacturer's website and didn't see the answer, but then a simple Google search of the same question returned this:

"Is the MSPNP emissions legal? Does it return OBD2 codes?

The MSPNP is sold for competition use on race tracks, autocross, drag strips, off road courses, and things that otherwise don't get driven on public roads. Although a correctly tuned MSPNP is capable of relatively low tailpipe readings, a badly tuned one can send emissions through the roof. Consequently, installing one on a street car does not meet Federal emissions rules. The MSPNP also does not return OBD2 codes, either. If you have to return your race car to street duty, you've got to unplug the MSPNP and go back to the stock ECU to stay street legal."

So, those of you that are passing emissions every year with a standalone, are you yanking out your ECU and putting the stock one back in before emissions testing?

triple88a 01-25-2014 03:55 PM

Yes the laws are too far behind. You could be running even an electric vehicle.. if that obd2 scan isnt working you automatically fail. Not sure what/ if any states do the sniffer test only any more.

Few years ago the prius couldnt pass emissions because its made to turn off the engine and run on electric at idle the gasoline engine would turn off and fail emissions.

sixshooter 01-25-2014 09:54 PM

The answer is related to your state location and just how they test.

achervig 01-25-2014 11:43 PM

My home state of Tennessee uses a sniffer in the tailpipe and an OBDII plug under the dash. It looks like I'd have to plan to swap back to stock every year, or be happy with the Voodoo.

Thanks for the intel guys, I'll do some more research about the difficulties involved in a stock-swap and then make a decision. Right now I'm thinking I don't want to mess with the annual hassle, and the Voodoo box is looking pretty good (to a rookie anyway).

18psi 01-25-2014 11:45 PM

That's the catch: it ONLY looks good to a rookie. Once you know what you're doing, you'll realize why we don't like them

EO2K 01-26-2014 12:58 AM

This statement is of course acedemic but if I could run a voodoo as part of a turbo kit and pass emissions, I'd happily buy one.

But I'd still pull it and run some flavor of MS or AEM for the other 729 days between checks.

triple88a 01-26-2014 03:09 AM

Sadly many people will take a shitty running car ready to pop at any moment just so they dont have to do an hr of extra work per year or 2.

achervig 01-26-2014 11:42 PM


Originally Posted by triple88a (Post 1095649)
Sadly many people will take a shitty running car ready to pop at any moment just so they dont have to do an hr of extra work per year or 2.

Maybe that's true of some people, I wouldn't know. If it's only a couple hours of work per year to revert back to an emissions-passable condition, then I'll run a standalone. Let the research continue . . . I'll make a decision soon. My car's due for re-registration in March, so I'll pull the trigger the day after I renew.

18psi 01-26-2014 11:45 PM

If you do everything right, it really is no more than about a couple hours

Godless Commie 01-27-2014 09:50 AM

My car passes yearly emissions and mechanical inspections (and very strict inspections at that) with no problems.
Exhaust gas values are excellent, and brake testing is a joke with my larger brakes.
As for the supercharged engine, my saving grace is the fact that there are very few MX-5s over here, and the techs usually think everything under the hood is stock. I do not have brand names on anything I have installed under the hood.
The only "warning" I have received to date is about my Bi-Xenon headlight conversion. They are miffed about the fact that the headlights do not have automatic height compensation.

concealer404 01-27-2014 11:13 AM


Originally Posted by achervig (Post 1095630)
My home state of Tennessee uses a sniffer in the tailpipe and an OBDII plug under the dash. It looks like I'd have to plan to swap back to stock every year, or be happy with the Voodoo.

Thanks for the intel guys, I'll do some more research about the difficulties involved in a stock-swap and then make a decision. Right now I'm thinking I don't want to mess with the annual hassle, and the Voodoo box is looking pretty good (to a rookie anyway).


Put it this way.... would you rather endure 1 day of annoyance in order to enjoy 364 days of driving bliss?

Or enjoy 1 day of easy smog testing as a payoff for 364 days of annoyance?

triple88a 01-27-2014 06:48 PM


Originally Posted by achervig (Post 1095816)
Maybe that's true of some people, I wouldn't know. If it's only a couple hours of work per year to revert back to an emissions-passable condition, then I'll run a standalone. Let the research continue . . . I'll make a decision soon. My car's due for re-registration in March, so I'll pull the trigger the day after I renew.

After doing it for whatever time it takes me roughly an hr to switch back and forth.

30-40 mins on the injectors + the maf, 2-3 mins on the bov, 10 seconds on the wastegate, 10 mins to fuck around under the dash switching ecu plugs, and thats about an hr.

achervig 02-15-2014 12:59 AM

Not to thread-jack any more than I already did, but I'll give an update on my decision: I pulled the trigger on a Voodoo II, WBO2 and Happy Meal from clutch from FM. Should have it on Thursday and will start the install in a few weeks when I can take some time off work, and after I've registered the car for another year.

I figure I'll get comfortable with this "simple" setup and then move up to better engine management, bigger injectors, more boost etc, as I gain experience. I know this isn't the cheapest way to do it, but that's how I'm doing it.

triple88a 02-15-2014 01:02 AM

Hopefully u dont pop the motor on the voodoo running 13 afr at 8 psi.

achervig 02-15-2014 01:45 AM

Yeah you'll be the first one I tell when I do :)

Keith@FM 02-17-2014 12:45 PM


Originally Posted by triple88a (Post 1102584)
Hopefully u dont pop the motor on the voodoo running 13 afr at 8 psi.

If you're running 13 AFR, you're running too much boost. It's simple. The ability of the stock injectors to deliver fuel is your boost limit. The actual PSI varies depending on things like the exhaust being used, the year of the engine and the turbo size.

I ran the Voodoo on my street (and occasional track) Miata for years. Worked fine, no hassles. It's a good option if you just want to install and forget, which is what it's intended for. Not everyone wants to deal with things like being in charge of cold start, for example. In a normal install, it should have lots of margin for error. It's not a good option if you're trying to build a beast.

If people are popping engines with the Voodoo, we're not hearing about it. I can't think of one offhand. The nice thing about most Miata owners is that if you tell them to only run X psi, they'll run X psi. When we sold parts for Proteges, if we said X psi they'd just keep turning it up until one of the rods made a break for freedom...

concealer404 02-17-2014 01:34 PM


Originally Posted by Keith@FM (Post 1103050)
If you're running 13 AFR, you're running too much boost. It's simple. The ability of the stock injectors to deliver fuel is your boost limit. The actual PSI varies depending on things like the exhaust being used, the year of the engine and the turbo size.

I ran the Voodoo on my street (and occasional track) Miata for years. Worked fine, no hassles. It's a good option if you just want to install and forget, which is what it's intended for. Not everyone wants to deal with things like being in charge of cold start, for example. In a normal install, it should have lots of margin for error. It's not a good option if you're trying to build a beast.

If people are popping engines with the Voodoo, we're not hearing about it. I can't think of one offhand. The nice thing about most Miata owners is that if you tell them to only run X psi, they'll run X psi. When we sold parts for Proteges, if we said X psi they'd just keep turning it up until one of the rods made a break for freedom...

That was about... 4psi, right? You guys were doing stuff for the FS-DE powered cars? ;)

Keith@FM 02-17-2014 01:52 PM

They seemed to be safe up to 6. But 6.1 would take 'em out. Not a great turbo engine.

triple88a 02-17-2014 09:39 PM


Originally Posted by Keith@FM (Post 1103050)
If you're running 13 AFR, you're running too much boost. It's simple. The ability of the stock injectors to deliver fuel is your boost limit. The actual PSI varies depending on things like the exhaust being used, the year of the engine and the turbo size..

Which is about 6 psi +- 1/2psi. I know the voodoo is well designed but 180WHP at 6 psi?

Keith@FM 02-17-2014 10:39 PM

It all depends on what year the car is. The injectors peak out at 180 rwhp on an NA8, you can run whatever boost it takes to get there. If you're seeing 13:1, you're trying to push past 180 rwhp.

triple88a 02-17-2014 11:22 PM

You mean 180 crank?

Fuel Injector Calculator from WitchHunter Performance

Mine and everybody elses numbers confirm the stock 245cc injectors run out of fuel at 160whp which also agrees with the above calculator.

My personal results showed steady 11.8 till 6.2k rpm and then started increasing going up to 12.3 by redline at 6 psi.

Keith@FM 02-17-2014 11:40 PM

Hard to argue with "everybody else" and random websites. Boost and power are not the same thing, you can't use them interchangeably unless you're keeping everything else constant.

Most importantly, it's been our experience that the cars are running safely, both on our dyno and in the real world. As I said, I don't know of any engine failures with Voodoo turbos despite the gloom here. We know it's not for everyone, which is why we offer the Hydra-powered FM II and the no-electronics options for people who want to use a different engine management. I talk to Miata owners of all sorts every day, and the Voodoo fills a very important role for a lot of owners.

Meeners 02-18-2014 08:45 AM

Eh, You aren't going to hear from people that run the voodoo box now because the majority don't want to erupt the whiney backlash. Everyone knows by not it's not the most optimum due to it's limitations, but it is simple and it works... Not everyone is trying to squeeze every nag out of their motor. Some people simply just want their turbo car on the road, are transitioning from a basic setup, are on a budget, or don't enjoy spending hours dealing with tuning and are complacent with stupid simplicity. If you are running low boost I don't see what the big deal is. Some people seem to forget that not too long ago, options weren't as prophetic as they are now.

18psi 02-18-2014 09:17 AM


Originally Posted by Meeners (Post 1103356)
options weren't as prophetic as they are now.

That's mainly it, really. When compared to the dinasour tuning solutions of the early 2000's, this is a very capable little gadget.

Problem is, now its '14 and the 1337 regulars that are MT will always tell you to get the latest and greatest, because why not ;)

Meeners 02-18-2014 09:48 AM


Originally Posted by 18psi (Post 1103364)
That's mainly it, really. When compared to the dinasour tuning solutions of the early 2000's, this is a very capable little gadget.

Problem is, now its '14 and the 1337 regulars that are MT will always tell you to get the latest and greatest, because why not ;)

I agree wholeheartedly.

It's just like cellphones. I have a friend that has had all the new stuff and chooses to go back to a blackberry because it's simple. People make fun of him because he likes buttons, avoids touch screens, and pays $40 a month.

*Tucks away blackberry*

:giggle:

triple88a 02-18-2014 01:53 PM

Dont get me wrong, i'd be glad to not have to mess around with my standalone.. Especially messin around with cold start at 2F however i've yet to see a graph of a piggy back that keeps the afrs at 11.7 +-.2 tolerance.

concealer404 02-18-2014 01:59 PM


Originally Posted by 18psi (Post 1103364)
That's mainly it, really. When compared to the dinasour tuning solutions of the early 1990s, this is a very capable little gadget.

Problem is, now its '14 and the 1337 regulars that are MT will always tell you to get the latest and greatest, because why not ;)


Fixed.


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