
Tony






I have gotten fed up with piggybacks and them trying to wrestle the stock ECU, the result is always the same the tune drifts. I wanted FULL fuel control. Luckily Gurov makes the Megasquirt 1 v 3.0 board with gsquirt. That gives me COMPLETE fuel control and ELIMINATES the stock ECU from controlling fuel completely. No more tune drift for me...
The Megasquirt is pretty easy to install, its straight forward wiring. If you have installed SAFC-II, you can install Megasquirt, its just a few more wires. The install took me about an hour and half, and I took my sweet time checking every pin few times, just to make sure I'm splicing/tapping the right wire.
The Megasquirt comes pre-set from Gurov. I had no issues getting the car to start-up and idle obviously with Gurov's help. The car started on the first try
Gurov walked me through all the basic settings on aim... He was very patient and answered all my questions 
Right now my tuning is on hold. I discovered that the Megasquirt doesn't like the AEM UEGO wideband, It will read its voltage correctly, BUT the AFR's in the megasquirt software were way off. I decided to ditch the UEGO and get a Innovate LC-1 wideband. The LC-1 is fully programmable wideband and it is proven to work with the Megasquirt. Gurov has the LC-1 as well...
For anybody who is serious about their turbo Specv the Megasquirt is a MUST. There is no better engine or cheaper management out there. Lets see a quick summary;
SAFC-II or NEO
- Price $180-$280
- Modifies MAF signal, thus lies to the ECU
- Monitors TPS, Voltage, and few other things
AEM FI/C
- Price $220-$380
- Intercepts injector signal, thus modifying the injector pulse width
- Can retard timing
- Clamps MAF
- Modify MAF signal
- It has built in MAP sensor
- It can datalog with a laptop
- Works with any wideband which has 0-5V output
Megasquirt 1 v3.0 with Gsquirt board
- Price $400 assembled, tested and pre-set from Gurov
- Full fuel standalone, read the stock ECU has no control of the injectors what-so-ever
- Can raise rev-limiter
- Has launch control
- Controls boost
- Can control fans
- Can control timing with external trigger wheel
- Has three programmable outputs
- Has overboost protection
- It has built in MAP sensor
- It can datalog with a laptop
- Works with most widebands, the only wideband which is tested and works 100% with this unit at this time is Innovate LC-1 wideband
- Can switch maps with a simple on-off switch from low boost map to a higher boost map
UpRev software;
- Price $800+
- Can modify most parameters of stock ECU
- no boost or launch control...
- still in development with no public release date in sight
If you look above for the price the Megasquirt with Gsquirt board is clearly the best option out there...
Now a picture of the Megasquirt installed in my car;
Last edited by Black04SpecV (2008-10-08 21:42:30)
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Alex


Sweet! Now buy me a turbo kit so I can be like you lol

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Tony






02_Blackout wrote:
Sweet! Now buy me a turbo kit so I can be like you lol
You can install the Megasquirt on a N/A car as well... I bet you would benefit from raised redline 
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Michael





Innovate LM-1 works too and JAW
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Alex


Black04SpecV wrote:
02_Blackout wrote:
Sweet! Now buy me a turbo kit so I can be like you lol
You can install the Megasquirt on a N/A car as well... I bet you would benefit from raised redline
But I want snail! Haha just messin with ya man. Seriously though congrats on the install! Not much harder than an SAFC huh? I might just go standalone right away when I boost then.

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Tony






02_Blackout wrote:
Black04SpecV wrote:
02_Blackout wrote:
Sweet! Now buy me a turbo kit so I can be like you lol
You can install the Megasquirt on a N/A car as well... I bet you would benefit from raised redline
But I want snail! Haha just messin with ya man. Seriously though congrats on the install! Not much harder than an SAFC huh? I might just go standalone right away when I boost then.
You should standalone is the way to go...
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Tony






darsondriss wrote:
Innovate LM-1 works too and JAW
meh I should have said every wideband from Innovate works. I just got the LC-1, because its the cheapest...
Last edited by Black04SpecV (2008-10-08 21:53:03)
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Alex


Black04SpecV wrote:
02_Blackout wrote:
Black04SpecV wrote:
You can install the Megasquirt on a N/A car as well... I bet you would benefit from raised redlineBut I want snail! Haha just messin with ya man. Seriously though congrats on the install! Not much harder than an SAFC huh? I might just go standalone right away when I boost then.
You should standalone is the way to go...
Well since you're in MN maybe you could help me out when I do it 

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Michael





pretty much any wideband that had a programmible output will work.
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Allen




dude, thanks for this list of features and stuff. i think this is what i would go with.
do you have a afr gauge set up with the lc-1? or just reading it off the laptop?
everything is controlled via a connected laptop right? but you dont have to keep the laptop constantly connected each time you drive right?
does the built in map sensor work with an external boost gauge?
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Tony






illestfob wrote:
dude, thanks for this list of features and stuff. i think this is what i would go with.
do you have a afr gauge set up with the lc-1? or just reading it off the laptop?
everything is controlled via a connected laptop right? but you dont have to keep the laptop constantly connected each time you drive right?
does the built in map sensor work with an external boost gauge?
1, I haven't even received the LC-1 yet. You can connect a gauge to the LC-1. The LC-1 is just a bare bones kit, you can get the AFR gauge later.
2, You need the laptop only to tune the Megasquirt, once its tuned you don't need a laptop. It's a good idea to have a AFR gauge, oil psi gauge, water temp gauge and a boost gauge to keep an eye on things.
3, You can tee a mechanical boost gauge off the vacuum line going to the Megasquirt's MAP.
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gennady gurov







you can run an external trigger wheel and still control just fuel, you're simply substituting the coil input for the proper trigger wheel, it's also very safe, i've driven over 20 thousand miles with a trigger wheel and sensor hooked up to my engine, never a single problem.
uprev does not exist right now, you have to wait. this is NOW and available.
gsquirt is a simple board i made, and i would recommend it to anyone, even running 3.0 board (i took both my 3.0 boxes and installed the board in it) it eliminates all the cluttered bullshit in the proto board, the gsquirt board can be isolated. i'd love to se you fit 8 transistors onto the proto board along with a massive mosfet.

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Tony






pimpsmurf wrote:
Black04SpecV wrote:
Megasquirt 1 v3.0 with Gsquirt board
- Price $400 assembled, tested and pre-set from Gurov
- Full fuel standalone, read the stock ECU has no control of the injectors what-so-ever
- Can raise rev-limiter
- Has launch control
- Controls boost
- Can control fans
- Can control timing with external trigger wheel
- Has three programmable outputs
- Has overboost protection
- It has built in MAP sensor
- It can datalog with a laptop
- Works with most widebands, the only wideband which is tested and works 100% with this unit at this time is Innovate LC-1 wideband
- Can switch maps with a simple on-off switch from low boost map to a higher boost map
UpRev software;
- Price $800+
- Can modify most parameters of stock ECU
- no boost or launch control...
- still in development with no public release date in sight
If you look above for the price the Megasquirt with Gsquirt board is clearly the best option out there...Awsome. More megasquirt! This shit is awsome.
1: JAW works 100% as well, as do many other widebands. This is the one thing MS2 has on MS1, the ability to set a custom voltage pattern. JAW just emulates LC1 for megasquirt.
2: external trigger wheel isn't a minor upgrade. It's also very hard to tune and most wouldn't recommend it for most people. I don't even recommend it for myself. I'm going to use the $300 UpRev Cypher to adjust my base timing, and roll with that. The stock ECU is very good at timing when you don't lie to it too much. 17 degrees advanced is too much for high boost without race gas!
3: gsquirt is an addon board (daughter card) and just incorporates all the awesome shit megasquirt can do onto one little board. It's badass, but it's not absolutely "needed" for those on a budget. It doesn't add functionality, it just lets you use a single daughter card for everything and not look like a clusterfuck. One can put almost all (if not all) of this functionality on the main 3.0 board prototype area. Especially if one doesn't want to use it for timing immediately. (this is here for the newbs reading the thread.)
4: uprev isn't 800+, it's 300/900. the $300 is a consult-life device that can datalog the living shit (up to 20 things at once, including timing) out of the stock ECU and provide you a ton of feedback for tuning. It can also do simple consult-2 adjustments like timing, idle rpm, etc. Even megasquirt can't (yet) do idle adjustment unless you convert the TB (might be wrong on this.) Uprev WILL be the be-all-end-all tuning for the spec-v. It will be able to do anything, unfortunately, it will be a while yet until it's done, but it IS being worked on. Don't wait for it. haha. UpRev backed off of it's huge price tag for systems, and are going to offer $900 tuner kits where you can adjust everything yourself. This is going to be epic because it will do many many many things that Megasquirt can NOT do.
Megasquirt STRIKES AGAIN!WOOT
-JNY
1, Good to know 
2, I agree I just listed it as one of the features, tuning the timing with the Megasquirt is a PITA, plus as you said the stock ECU takes care of the timing pretty well.
4, Cypher from UpRev is $300. The cypher can only datalog read SES codes, raise idle and advance/retard timing +/- two degrees.
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Michael




Very good thread. I've been going through all of the Megasquirt threads the past few days and like what I see.
The thing I like about this thread is that the original post is informative and to the point. Is it possible for somebody (probably G) to compile all of the current Megasquirt info, which is spread out over several threads, into one thread? Even if its along the lines of Gurov's "How to turbo a Spec V" thread where it links to the other threads based on content.
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Allen




Black04SpecV wrote:
I have gotten fed up with piggybacks and them trying to wrestle the stock ECU, the result is always the same the tune drifts. I wanted FULL fuel control. Luckily Gurov makes the Megasquirt 1 v 3.0 board with gsquirt. That gives me COMPLETE fuel control and ELIMINATES the stock ECU from controlling fuel completely. No more tune drift for me...
ive been trying to figure out how to word this question for the past few mins lol.
when you say that gsquirt eliminates the stock ecu from controlling fuel, i understand the end result (gsquirt gets the control) but does that mean that the stock ecu is still futilely trying to adjust to teh original fuel trims and is just overridden by gsquirt or does the stock ecu not even see them and only sees what gsquirt is telling it?
this may or may not matter but im just trying to understand it a lil more
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Michael





stock ecu is probably trying extremely futilly to change fuel trims. But the ecu isnt even hooked up to the injectors anymore. the wires are cut
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Tony






darsondriss wrote:
stock ecu is probably trying extremely futilly to change fuel trims. But the ecu isnt even hooked up to the injectors anymore. the wires are cut
Exactly... Thats what I love about the Megasquirt.
Plus it doesn't throw SES light...
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Allen




so the injectors are wired to the gsquirt i take it? how hard is this to revert back to stock and stuff?
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Michael





illestfob wrote:
so the injectors are wired to the gsquirt i take it? how hard is this to revert back to stock and stuff?
super easy... just plug the injectors back in... really easy with how gurov sets it up.... i can revert to stock in 30 seconds if you count the time it takes me to unlock the car and open the hood. but its kinda useless to revert back to stock if you dont have another form of fuel control lol . 440s and stock ecu dont cut it
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Allen




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Allen




the 3 programmable outputs.. what are some examples of what they can be used for?
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Michael





pretty much anything like it says lol.... im only using one for secondarys being as i dont have anything else to use lol. but pretty much anything that can be triggered electronically thats NOT PWM can be triggered with the outputs
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Nick



Has anyone tried to control timing with it yet (on a spec-v)?
Oh, and does this eliminate the problem of maxing out the MAF?
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Michael





nccentral wrote:
Has anyone tried to control timing with it yet (on a spec-v)?
Oh, and does this eliminate the problem of maxing out the MAF?
the problem with controlling timing is you need a trigger wheel. hiedis got it on her full standalone but we arent running the same as her. A limited version of the timing control is in the works though as we are currently working on getting a timing drop for rev limits
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Nick



From what I read on the diyautotune website, you have to upgrade it to msII in order to control timing, am I missing something?
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Tony






nccentral wrote:
From what I read on the diyautotune website, you have to upgrade it to msII in order to control timing, am I missing something?
You don't really want to control timing. It is NOT necessary. The stock ECU controls timing pretty well. Besides tuning the timing with the Megasquirt is a PITA.
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gennady gurov







Black04SpecV wrote:
nccentral wrote:
From what I read on the diyautotune website, you have to upgrade it to msII in order to control timing, am I missing something?
You don't really want to control timing. It is NOT necessary. The stock ECU controls timing pretty well. Besides tuning the timing with the Megasquirt is a PITA.
tuning timing being a pain in the ass is not a function of megasquirt, it's the general notion of tuning timing.
tuning timing in megasquirt is easy as hell, it's just that you have no quantitative feedback for which way you need to move like you would with fuel

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Kurt Kennedy



Fuckin A. i want a spec-v again.
Good work guys!!
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gennady gurov







nccentral wrote:
From what I read on the diyautotune website, you have to upgrade it to msII in order to control timing, am I missing something?
diyautotune ships all their stuff and talks about ONLY vanilla megasquirt firmware.
boxes i ship are loaded with msns-extra_hr, which is megasquirt and spark, extra features, high resolution. which means .035ms injector resolution, a ton of extra features, and ability to run a crapload of spark outputs should you chose to do so.
look up http://www.msextra.com/manuals/MS_Extra … _Index.htm

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gennady gurov







nccentral wrote:
Has anyone tried to control timing with it yet (on a spec-v)?
Oh, and does this eliminate the problem of maxing out the MAF?
heidi's hqr runs on megasquirt box with full timing control. 36-1 crank-pulley mounted trigger wheel with a hall ic sensor

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gennady gurov







pimpsmurf wrote:
gurov wrote:
you can run an external trigger wheel and still control just fuel, you're simply substituting the coil input for the proper trigger wheel, it's also very safe, i've driven over 20 thousand miles with a trigger wheel and sensor hooked up to my engine, never a single problem.
uprev does not exist right now, you have to wait. this is NOW and available.
gsquirt is a simple board i made, and i would recommend it to anyone, even running 3.0 board (i took both my 3.0 boxes and installed the board in it) it eliminates all the cluttered bullshit in the proto board, the gsquirt board can be isolated. i'd love to se you fit 8 transistors onto the proto board along with a massive mosfet.I didn't say it wasn't very unsafe, I just said that it's not a simple upgrade. I don't consider custom mounts and custom aftermarket pulleys with custom mounted trigger wheels "simple." Doable, and badass, but not just slapping a few wires together.
right on. UpRev does exist right now... The cypher portion. How much are you selling the gsquirt boards for?
-JNY
the boards are not up for individual sale and can only come as part of a package with the box itself.

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gennady gurov







pimpsmurf wrote:
gurov wrote:
pimpsmurf wrote:
I didn't say it wasn't very unsafe, I just said that it's not a simple upgrade. I don't consider custom mounts and custom aftermarket pulleys with custom mounted trigger wheels "simple." Doable, and badass, but not just slapping a few wires together.
right on. UpRev does exist right now... The cypher portion. How much are you selling the gsquirt boards for?
-JNYthe boards are not up for individual sale and can only come as part of a package with the box itself.
Are you accepting orders from the general MSV public, or just doing them when you have time? Takes an ass ton of time to build these fuckers, as we know. haha
i'm accepting orders from general populous, but i use scare tactics to weed out all the people who couldn't hack it

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DJ



wow just from this psot i want it. the afc does not do it for me. with the SC it was Great, but the turbo it seems the tune wonders alot more.
i need to read up on more of the post about it, and get intouch with gurov about getting one of these very soon!
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Tony






sweetspecv wrote:
wow just from this psot i want it. the afc does not do it for me. with the SC it was Great, but the turbo it seems the tune wonders alot more.
i need to read up on more of the post about it, and get intouch with gurov about getting one of these very soon!
DO IT! You won't regret it... The Megasquirt is awesome!. Oh did I mention that it tunes ITSELF? You simple datalog when you drive, than view the log in Megalogviewer and load the latest msq, press analyze button and its all done...
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Boost..Coming soon



question: with the ms, do we need external boost controller?
cause i have in the mail an emanage and a profec b but i think i'm sold on this.
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Tony






SE-R RACER wrote:
question: with the ms, do we need external boost controller?
cause i have in the mail an emanage and a profec b but i think i'm sold on this.
Nope... The ms can control boost, with the gm boost solenoid which gurov sells.
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So we can setup a two-step, but not an anti-lag, right?

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