GI: Guardian Angel (Overboost Protection)
 

Alright guys, this is a GI thread for the Guardian Angel. I need to know what my initial production batch number should be based on initial demand because these things are expensive to make and it takes a little while for the case to be manufactured.

There are a bunch of pictures and information here but I will summarize below: http://www.mazdaspeedforums.org/foru...02/index4.html

What is does:
- Prevents overboost conditions or acts as a methanol or other controller failsafe.
- It will prevent boot spikes due to cold weather, tuning issues.
- It will even prevent you overboosting if your WG line pops off.
- It has a built in trigger that can be used with meth controllers or other controllers. If the meth flow shuts off and the meth controller senses it, the device will trigger and cut your boost - usually below WG pressure.
- It is a much gentler cut than the fuel cut. The car will feel like it lost power, but you will still be able to keep your foot in it if you choose. This is NOT a fuel cut or ignition cut.
- Once you take your foot off the gas, the device resets automatically.
- The Guardian can be set to trigger at boost levels between 10-40psi.
- There is a warning LED that lights if the device is tripped. It also lights every time you turn on your car to show you it is working.

This will work with any boost controller, MBC, EBC, or stock. So if you're tuning, modifying the car, or doing any work with the boost system, as long as this device is installed properly it will save you from the dreaded overboost condition and likely bent rods.

What it works on:
- ANY turbocharged vehicle with a pull type/piston type BPV such as the stock one, Forge, Greddy, etc. It does not work with the HKS SSQV. If you have a BPV and want to know if it will work contact me.

Price
- $179

FIRST REVIEW HERE: http://www.mazdaspeedforums.org/foru...3/#post1302377

I currently have 7 left from a first batch. However these are mostly spoken for with just a few left over. What I need to know is how many of you would purchase one to know how large of an order to make next since it takes 4 weeks for things to be built.

How is the install and de-mod (stock out for emissions check and dealer warranty visits)? If its not too bad, I'm down for one. Thanks Lex!

Edit: seems easy enough. I'm down!

Lex done.. I am taking one.

Install is very simple and I will post it here shortly. Basically, you need power and ground (add a fuse in the stock fuse panel and use the ground on fender where the battery grounds).

You also remove the BPV vacuum line, plug this line into the Guardian, and then plug the second port from the Guardian into the BPV.

The LED you can route into the the cabin without any modifications through the hood release cable passthrough.

So there are no modifications that are not reversible and it should take no more than 1 hour to install.

Four weeks should be perfect for me to get back on my feet from the build. I'm in.

I use turbo smart 50/50. Let me know if that is an issue. Thanks.


Also, pff topic, you got your piston and rod, right? If I left out anything you needed, let me know, cuz I found more stuff as I've been assembling the motor.

I'm down.

i will buy one, just not at this moment. definitely interested in getting this before i start upping boost and what not.

Next in line. Thank you for putting this out Lex. Very handy to have.

I can think of a good example, right off of the top of my head... One of the best tuners (imo) and knowledgable guys on the forum, cld12pk2go had his vacuum cap slip off the bottom of his wg actuator when he was running the grimmspeed.

He hit something in the neighborhood of 28 psi (iirc)..(no boost cut from protective tables in atr, btw)
hyperlink to post here:
http://www.mazdaspeedforums.org/foru...tml#post982330


Moral of the story is that it can happen to anyone and the price of this device is WAY less than a rebuild.

There are a lot of classic examples out there:

This inspired me. Another experienced guy:
http://www.mazdaspeedforums.org/foru...27/#post797379

For me is more because I prefer to Load Tune over Boost Tune (Yeah FYBT) and with the weather having various extreme temps (well not too extreme recently in Ontario) I have been known to get spiking. I have been working more and more on the spikes, but it would be nice to have a backup safety just in case.

i can see myself picking one of these up once i start upgrading. better safe then sorry.

I will most definitely take one. Will the install be an issue if I have my boost gauge tee'd into my bpv vac line?

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Not at all.

Fantastic idea. I prolly will not be in on the first few batches but this is something I will def purchase in the future.

I will take one. Can never have too much protection. I like to claim that is why I triple up condoms too, but really it is so I can last more then 2 pumps.

Fantastic product and idea. Put me down for one, I will help in the testing too if needed.


Zigatapatalka

Lex,

You should sell this to mazda. Should be a factory option on this car haha.

I think you are crazy not to want this. $179 for motor insurance.

I will pick one up too. Not on this batch but probably the next one.

Definetly a good thing even for those that have basic mods and only starting to tune. $180 and an hour of work is worth peace of mind to me.

I may have missed it, but does it basically manipulate the pressure in the vacuum line to activate the BPV based on certain trigger conditions. I'm guessing its response time is pretty quick and has no relation to how much boost your are running or trying to bleed off in an over boost condition.

Also how easy is it to fine tune the boost set point potentiometer looking device. Least count around 1psi? hard to tell because of only 3 markings of 10, 25 and 40 psi.

Great work in making this safety system a reality Lex and great price point too.
Looks like the best insurance policy anyone could carry on their motor.

I'm with you. Don't need one now but will need one soon.

This is correct. The response is fairly fast and it is the same regardless of the boost you are running.

The markings are there as guidelines. The potentiometer is "infinitely tunable" and the resolution is quite good but it would have been too busy to make lots of markings on the case. What I suggest is that you set this up through a couple of trial runs where your normal boost levels are just below the trigger point.

So essentially, install it, set it to 10psi, see how car responds so that you are not taken aback when/if it triggers. Then move the trigger point up until you are just over your normal boost levels.

Even if this triggers falsely (ie you set it too low), it is very easy to adjust up and the car will continue running just fine. It is not a violent cut so if you are passing a slower car you do not lose all power. I notice that on my setup, I settle around 9-10psi with it triggered and still going WOT.

Of course don't use this as a boost controller, the turbo would have to work unnecessarily hard.

so to dumb this down alot. what you are saying is if im presently at 14-15psi. set this to 10, and do a run. after it sets off at 14-15 turn it up a lil and go again. keep my eye on the ap and my boost levels and just go from there. till about 19 or so, then leave it there. i have been known to spike to 19 under conditions and that would be about my safety net. or turn it down to 17/18 to keep from reaching 19. correct?

Think of this as the device that will stop a damaging boost spike. If you regularly spike to 19, I would set this to 21. An MS3 will not blow from a 19psi spike or a 21psi spike. Just set it a few psi the max level you usually see.

gotcha lol

I'm very interested on this product. Thank you for this thread Lex. Question, will there be maybe an opt for different colors for the Guardian Angel unit?

Not for now due to volume ... but if these start selling the 100s across multiple platforms then it will certainly be.

Will this be the 1st series price and then it will raise? Or will this be the set price point?

Lex,

I am def interested. So if my FS controller detect a WMI fault it can trigger the GA to open the BPV? badassness!

IIRC my Labonte sends a constant 5v signal until there is a fault. I would bet your looking for a 5v signal when there is a fault....If so I think an SPDT relay should resolve that as I do this for my in dash lights.

Intent is to keep the price at this level.

Yes, this is correct. The signal has to be high - 3V and above to trigger so if your kit sets it to low then you will have to invert it yes.

yea the Labonte IFS-25 FS is totally backward from the IFS-10. It sends a constant 5 [or maybe 12v] signal UNTIL a fault is detected...kinda a double failsafe...if the FS is broken it will trip or if there is a fault it will trip.

in normal operation if you were looking for a signal to indicate fault and the FS was fried...well so would you be :)

What if we plan on running 50psi?

At 50psi, your balls are so large it doesn't matter if you blow. Because if you do, you take it like a boss and build the motor to take 100psi.

But in all seriousness in that case I would need to look at an 80 or 100psi sensor and the resolution would drop.

This thing has to sell big time. Its just a matter of you getting this thing some visibility on all sorts of platforms. This thing is such a good idea I just cant believe this hasn't been a staple of building turbo cars as long as they've been around.

In on this too, killer idea

Damn good idea Lex. I would be up for one of these as well. This would be awesome for guys that are catless in the frigid weather.

Tappin

I might be interested later on, I don't think I really need it for now. I didn't vote in this poll but this little device-great idea.

If I get one, will it move me up the PERM tune list?

:damnit: I just realized this is useless for me..... HKS FTL!!!

Looks like I'm not gonna need to buy one after I win the February raffle. You should talk haltech into 3 or 4 of these bad boys so I have a better shot of winning.

I'm thinking about making this mandatory for everyone that I tune locally. It's good insurance.

Add me to the wish list.

I just noticed this thing is good up to ~45 psi? LOL.

I'm down for one Lex.

It's a 4 Bar map sensor - so 40 psi :) That should cover most people however unless you're driving a diesel truck.

I definitely want one! This is sweet, it would put my mind at ease.

In.

Do you have any left of those 7?

I am currently having a heck of a time with overboosting that the dealer is blaming on my Forge . . . funny thing is that I only overboost when I am running stock tune (AP uninstalled for dealer visit).

TBH I dont think he has many if any left. Its more of a GI. I know I tried to get in on one and unsure if I 100% am...and I was one of the first to respond. lol

Bummer . . .

I am make a list... start one. get the ball rolling. I am sure @Lex would appreciate actual numbers of people willing to throw down cash. Actually here...fuck it

1. starscream

1. starscream
2. mtlms3

Keep the list going folks. I have already started the ordering process for 30 more. For those of you who have contacted me and are receiving the initial units, expect invoices to go out the week of the 20th. The same week is when the initial units will be ready to ship.

Kewlz. I cant wait .

*goes out to contemplate mounting location in bay*


.... fuse box top already spoken for with WMI and FS controllers ....fuck then I need a place for the AIC1 injection controller.....need to build something super cool like the audio guys build for amps and such...lol

1. starscream
2. mtlms3
3. mrmonk7663

1. starscream
2. mtlms3
3. mrmonk7663
4. Gringo East

1. starscream
2. mtlms3
3. mrmonk7663
4. Gringo East
5. Sid3wayS

My pos hks failed me at just the right time for this.

@Lex why don't these work with the HKS? I must have missed the knowledge train.

Not that is matters, but doesn't 4 bar = 58 psi?

Don't forget that 1 bar is atmospheric pressure, so it measures 3 bar of boost.

Duh, gotcha... 44 psi then lol

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IIRC HKS is a "push" type BPV so it needs PSI to actually open the valve. GA works with pull type valves that when boost is removed from the top of the valve it opens. I may have that term exactly backward :) The only thing GA can currently do is block the boost signal from the top of the BPV thus allowing the boost in the charge pipe to force the valve open.

Don't add me to the list since I have 2 months before getting my car once I leave afcrackistan.

However, once I start doing my mods this is something I would love to have from day 1, along with a damn occ.

1. starscream
2. mtlms3
3. mrmonk7663
4. Gringo East
5. Sid3wayS
6. speed_freak91

Count me in... $180 for more safety.... You would be stupid not to buy this thing.

Im going to be in England until March 9th. I will try my best to keep up with this so I dont miss out. Picking up a FMIC and TB exhaust here soon. PERM tune and this should go well together.

1. starscream
2. mtlms3
3. mrmonk7663
4. Gringo East
5. Sid3wayS
6. speed_freak91
7. ryno077

1. starscream
2. mtlms3
3. mrmonk7663
4. Gringo East
5. Sid3wayS
6. speed_freak91
7. ryno077
8. fooqr

I want one!

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Copy the running list and add your name to the bottom bro.

I am interested in this item.

Thanks for the great interest guys. 30 more are on the way. I will have a lot more info + feedback from the initial group while the next batch is being made. I have been out of town the last few days so this is why I haven't been around much.

Dano explained it correctly above. The HKS is designed so that boost in the charge pipe seals the valve. The GA needs the BPV to relieve the charge pipe pressure while there is pressure in that charge pipe. Since the HKS type valves are sealed by boost alone, the GA can't open these while pressurized. You may also notice that with an HKS you might get a bit more compressor surge due to their design.

I get a lot of surge with my hks.

Yeah, that's the shortcoming of that design and why it's not used in OEM applications.

I think it's exaggerated with bt and part throttle aswell.

Thats why I got rid of mine... Ive always had some surge with it but lately after installing my ets tm it got ridiculous.

1. starscream
2. mtlms3
3. mrmonk7663
4. Gringo East
5. Sid3wayS
6. speed_freak91
7. ryno077
8. fooqr
9. obijack

I too will be in for the next batch.. Kinda got a lot all at once the past couple months..

1. starscream
2. mtlms3
3. mrmonk7663
4. Gringo East
5. Sid3wayS
6. speed_freak91
7. ryno077
8. fooqr
9. obijack
10. Sleeperhatch

Good news for those waiting for the first batch parts. Last night was a long night.

1. starscream
2. mtlms3
3. mrmonk7663
4. Gringo East
5. Sid3wayS
6. speed_freak91
7. ryno077
8. fooqr
9. obijack
10. Sleeperhatch
11. EL F00LI0

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@Lex So is the first batch of parts going to the list we have made?

I'm thinking this is a good thing. I'll take one. Probably do it tonight because my wallet is in my truck and it's snowing so I don't feel like going out there in my socks.:ugh2:

I think I can just barely make out my name on that back left unit.

its a great year for Mazdaspeed!

Yah, I noticed mine was in the right corner...win :D

Not quite ... the people that get these have already made the request prior and they have the very important roles of reviewing the units. :) Don't worry, parts have been ordered for 30 more.


Harnesses are done as well and everything is tested. Just about to order the shipping boxes. Those that are getting these will get the invoices tomorrow.

Sweetness!

Must resist....:Eyecrazy:

http://www.mazdaspeedforums.org/foru...0&d=1330229878

Lex put me in for one man!

That's awesome - wish I could thank it twice! Made my day!

Finally finished the instructions and the product is on my site:

Guardian Angel Overboost Protection [GUARDIAN_ANGEL] - $179.00CAD : Stratified Automotive Controls

Notice that it says Sold Out for now. When the new batch is ready, the quantity will be updated and you guys will be first to know. Until then watch for the reviews from the people that are getting them from the first batch.

Thanks Lex.

udaman!

Lex, you still going to operate off of the list we created in this thread for the next batch?

Install guide guide looks great! Which fuse would be good to tap into with add-a-fuse? Wasnt sure if the pic was the actual or a "sample".

Yes, if you guys fill all 30 slots, I will already order more. The idea is that there is no waiting list for these but I have to gauge demand first. Also these are not just MS3 specific so I hope to garner interest from other turbocharged platforms

That is the MS3 location I used for my methanol and and guardian angel connections. The name is F29 - and it is a 15A circuit that powers the P. Outlet in the car.

I marked this on the MS3 wiring diagram below. The reason the instructions aren't MS3 specific is because the product is meant to be more generic. I am hoping a couple of the guys here that get these will do a nice writeup.

https://www.stratifiedauto.com/image...tion-W1024.jpg

I ran the LED through the hood latch hole and the grommet fit back on there. I used a bent coat hanger to pull the LED through after I taped it to the coat hanger and it worked very well. Some images below


https://www.stratifiedauto.com/image...mmet-W1024.jpg

https://www.stratifiedauto.com/image...0LED-W1024.jpg

Sounds good :) Thanks Lex.

Will def. do this in the future, along with a nice PERM-tune..

If i had a chance to order this now for my BT build, i would do so.

Soooo, let me know when they're available and I'll send monies. :)


Also, is there any reason why you're routing it to a fuse? couldn't I just tap to 12v ignition source and directly connect to battery via relay? Just to be easier for less confusion? I hate wires sticking out of fuse box, looks horrible to me.

Sir, I am doing all I can get this next batch out ASAP.

In regards to the fuse - regardless of where you get your power source, it is generally good practice to fuse the power line. The unit has reverse polarity protection but JUST in case, this is best practice and this is why everything in the car is fused. Last thing you want is an electrical fire.

Lol, i'm not hounding you, just excited and showing my interest :)

whoops, forgot to add that in my post, you're absolutely right. however, what i'll do is put in my own fuse holder and fuse. I have a bunch laying around anyway. I just don't like the idea of piggybacking. :(

Interest is definitely appreciated! As long as you fuse it correctly that would work just fine. The current draw is under 1A.

1. starscream
2. mtlms3
3. mrmonk7663
4. Gringo East
5. Sid3wayS
6. speed_freak91
7. ryno077
8. fooqr
9. obijack
10. Sleeperhatch
11. EL F00LI0
12.mroclimbr