blackfcTII

Damn you don't even need the afm, how is that possible, what regulates the air intake without a AFM. Or do I have it wrong. This is all really good stuff, keep it comin.

And if one more person comes in and advises that I put a V-8 in my car I'm gonna have a BF, I hate that ****.

RotaryEvolution

iTrader: (30)

pressure sensor is used to adjust air/fuel trim rather than an airflow meter.

88rxn/a

iTrader: (6)

yep, im one of them!! the primaries run SUPER rich right untill the secondaries kick in...it starts at 3K or so and even using a piggback (SAFCII) i cant tune it out... there has been more and more of this popping up..i dont know if everyone that is running the Rtek1.7 is just dealing with it or thinks its the TPS or what...

blackfcTII

So with these problems with the mega squirt and Rteks would it be better to go with a more expensive system. With these systems you completely remove the harness and run your own to all the sensors and such correct.

blackfcTII

Damn AEM wants 2,243 for a stand alone. Any body have any input on that system.

J-Rat

iTrader: (2)

It never ceases to amaze me what people will say you HAVE to have for 300 horsepower, as if any of them have even achieved that level of performance.

You dont need anything other then a stock rebuilt motor, nice standalone (HALTECH is my recommendation), a good turbo (hybrid or otherwise), and the associated bolt ons (exhaust, intake, etc).

You DONT need a street port, or a V8, or any of that other crap. Ask the people that have made that much HP and more on a stock port. We know what it takes to get there.

Rat

blackfcTII

Haltech, thats the one I heard about. It's about 1200 correct. I've heard good things about that setup.

Digi7ech

iTrader: (1)

The two common engine management systems are Haltech and Microtech.

I recommend buying the one which is commonly used in your area. That way when somethign happens they can help you.

Sideways7

iTrader: (7)

Yep, haltech and microtech are both highly regarded, and its generally best to go with what your tuner is familiar with. I've heard of more people using haltech, though.

RotaryEvolution

iTrader: (30)

microtech - cheapest base standalone, proven on engines producing 800+RWHP, not as easy to tune as haltech or wolf EMS since the lower models do not have wideband inputs. runs off the base engine sensors, flying lead kits is spliced into the stock pigtail harness connectors for a stock hybrid harness. ECU is plug and play with even mis-matched pairs of high and low impedence injectors for easy fuel system setup. can tune with hand controller or with laptop, laptop is much easier to fine tune with though in matrix mode.


haltech - more expensive but more options and more controls, easier to tune with since you have wideband inputs for datalogging and auto tune features. uses new sensors which must be tapped into the engine, i am not a big fan of this compared to the stock sensors that the microtech taps into for a much cleaner install, the haltech equipped engines look more of a wild experiment than a stock-ish motor. more expensive than the microtech but much more widely supported by tuners due to the datalogging aspect for tunability.

wolf EMS - same as haltech but more tuning features, also more expensive. generally used by people who have fatter wallets. only a hand full of tuners deal with the wolf EMS since it isn't as common of a install.

adrock3217

BNRsupercars.com still works..it rerouted to bnrturbos.com...but still...I win!

rotarygod

iTrader: (1)

Oh give me a break. That's a stupid reason. Megasquirt is fully capable. The problem is that most of the people using it are doing it because it's cheap, not because they know how to or because it's easy. The reason you've never seen anyone hit that isn't because the ecu isn't capable of it. That's not even a question. It'll easily do it. The issue is with the people who have used them so far. Most of them either don't know how to tune/are just learning, or are using them on naturally apsirated cars. I've never seen God or an alien therefor they are unproven in my view. Why do so many people in the world believe in them?

RotaryEvolution

iTrader: (30)

i'd like to believe they are capeable but i don't feel like tossing $500 at a standalone and hope it works as well as it's claimed, i'm sure it is capeable but is it worth spending an extra full weeks worth of time spending dialing things in? maybe from a tinkerer self tuners point of view, sure it may be fun tinkering with things but from a shop tuners point of view a full week of dicking with a car = $thousands of customer dollars which won't materialize because they went with the cheapest 'standalone' out there.

like i said, it probably is capable but back to my point there still hasn't been even a single person to hit even 300RWHP on it.... maybe i'm sounding dumb, maybe my number is high, maybe i put too much stock into people understanding how to tune, i dunno but i would have hoped maybe 1 or 2 people out there would have tried it and had good results but still people are weary of using a cheap standalone, had i known about them before i bought my microtech i probably would have used it but to tell the truth i doubt it is very easy to manage which is part of the reason it is unproven.

NZConvertible

While the advantages of a standalone are beyond debate, the myths and BS that get posted about FCD's is truly amazing. The MAP sensor does not control fuelling. The AFM is the main load sensor and is by far the most important sensor related to fuelling. This point gets repeated on a regular basis but it still doesn't seem to sink in. The ECU may think it's running less boost than it really is but it's still measuring airflow and calculating fuelling from that. Ignition timing is another matter, but it's still just a matter of making sure you have enough fuel and low enough intake temps to suppress detonation with the boost you're running.

The airflow is regulated by the throttles. On a MAP-based system the airflow is not measured directly, but is calculated based on manifold pressure, rpm and a look-up table in the ECU.

SlowCelica94

For the record, I'm still in my learning stages with standalones. And possibly spoiled by being trained on my boss's Electromotive Tec3.

As far Megasquirt's quality of product is concerned, I think that if it was a junk ecu, we'd of heard about it by now. It didn't take long for SSautochrome/XSpower's quality reviews to be all over the internet. All those pics of broken parts circled the auto forums and their horrible rep soon became common knowledge.

In my opinion, the owner should know his standalone inside and out, so you're going have to spend the hours farmilarizing yourself with the system. It's almost like good pratice. But on the otherhand, after I played with a Hondata S300, I quickly missed the electromotive, due to userfriendly factor and ease of tuning.

And as far as the fact we've never seen 300whp out of the megasquirt shouldn't speak for it's quality. If you're buying the poor man's standlone, odds you're working on limited budget.

blackfcTII

I don't want a cheap piece of **** if it's not going to work. I hurried through my first project and blew that straight to hell. I think it's time to slow down. I want the best for my FC so I'll take a little more time to gather the cash. I want a dependable racer and a consistant one and if it's one thing I have learned over the years the habit of racing is not cheap especially if you want to win. First I have to find a tuner in my area and go from there as to which system to go with. I have never dealt with stand alones before so I have never had to bother with that. Man oh man this **** is gettin deap, fun fun. I like it!

blackfcTII

I checked them out and was a little sad to see they only did the stage four for the S4. I plan on contacting them but, will they do a stage four upgrade on a S5 turbo.
From what they are saying on that page is they only do a stage 1 and 2 on S5 turbos. But in the S4 stage four description they mentioned a S5 turbo as well.???

RETed

I just want to clear up some misconceptions...

AFAIK, "autotune" has not be officially implemented yet.


At least the E8 / E11, you can use the stock air temp and water temp sensors.
E8 / E11 can run any water temp or air temp sensor - you just need to fill out the sensors characterization tables, either voltage or resistance.
So...you don't need to tap jack.


-Ted

eage8

iTrader: (9)

rx7store.net sells bnr upgrades too.. they have up to stage 3 in both S4 and S5


as for the Megasquirt. most of the people using it are NA guys or super cheap peoeple that can't afford the upgrades to make 300+ hp if they did, they probably wouldn't be using a megasquirt. there isn't even a S5 TII map yet that I'm aware of. I'll be making one as soon as I can get my TII started (don't really have much time to work on it these days) but yeah, I'm hoping for high 200 rwhp.

PS. the megasquirt has an auto-tune feature

adrock3217

Myk..your car is going to make like 250rwhp...hence Eriksseven, and a lot of others..

And..almost all standalones have an autotune :P It just isn't as good as doing it yourself!

88rxn/a

iTrader: (6)

WOW, the knowledge is great in here about standalones and it shows..BUT..i think the zeal megasquirt should be given a chance..after all..only a handfull were sold at the moment...it has to be junk because its cheap? becuase it uses the stock wire harness?? not ALL the 7's out there have JUNK wire harness...maybe someone spent the time to replace the harness and this would be the perfect setup for them..why wouldnt it be able to create 300WHP from a rotary? i think soon it WILL be proven..im a cheap bastard and a poor college student so why not go for the option of a standalone for a fraction of the cost...for all we know this could be the person to get 400WHP with the zeal megasquirt (if hes even S4?) and any new standalone is gonna take a while to tune the first time unless you have someone there holding your hand while you learn...im sure if they had the money (megasquirt company) to have it tested in a controled atmosphere with TONS of hours testing it they could make it WAY better for use and more user friendly but its a couple of guys trying to make a new way around the 1K bill for a standalone..not to mention the money to tune it, the money to install and the time it takes to install it....so IMHO if i can get the money saved up for the nezt zeal megasquirt im gonna hop on that deal because i think its gonna be something else...who knows though..look at the trouble i have with the Rtek1.7 ...look how that is praised to be the great and only way around a standalone!! christ i cant even drive the damn car up a hill at a certain RPM for fear of it detonating because of TO much fuel!!! my point: people have been wrong before and MAY be wrong again....only time will tell

SirCygnus

iTrader: (1)

the megasquirt is the most superior stand alone system,. it will go into virtually anything, and can be adapted to do virtually anything. i built mine with relativly little electrical knowhow. i just knopw how to solder stuff. i prefer thios simply because i know what works and how it works.

RotaryEvolution

iTrader: (30)

who the hell said it is junk?!

god damn people putting words into my mouth...

88rxn/a

iTrader: (6)

i never reffered to you saying it was junk....you DID say you MIGHT have gave it a chance before but just because you dont aprrove of the price doesnt mean it needs to be poked at because it doesnt cost $1,000 or more..they made it affordable for us poor people...they even said they are not making money off of it...just helping the community
you DID infact call it a "cheap" standalone...so because its 500 you say its cheap? or is it cheap because think its junk?? thats what i was saying...
god damn people need to lighten up here!!

rotarygod

iTrader: (1)

So what makes you think that any other ecu out there is going to be any better or easier to get tuned? What makes you think that if you would spend a few weeks dialing things in with a Megasquirt that you wouldn't be doing the exact same thing with a Haltech or Microtech? All standlones basically require the same amount of attention. Mine started the first time I ever tried it and I had a nice drivable map from scratch in a couple of hours. I could have made this happen with a Haltech, Microtech, Motec, etc. It wouldn't have changed anything. Admittedly I could get a better full throttle tune on a dyno but that would be true with any other ecu as well. Having a wideband allows you to get pretty close though without one. Learning the software takes longer than learning how to dial in a good drivable map. If it takes you a few weeks, you shouldn't be playing with standalones.


The auto tune feature on Megasuirt is operational. It is not as easy as it sounds though. Many people expect to push a button, start their car and have the ecu just learn and tune as you drive. It doesn't work this way. You have to first get a decent map loaded. You'll need to do this yourself or get a map from someone else. Then you set it to auto tune and tell it what a/f you want to hit at that spot. If your tune is remotely in the ballpark, it will make the necessary changes. After you get this set up it becomes easy to dial in any other a/f that you want as you are already close. It is not some miracle device that tunes from scratch.