Miata Turbo Forum - Boost cars, acquire cats.
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Miata Turbo Forum - Boost cars, acquire cats. (https://www.miataturbo.net/)
-   Build Threads (https://www.miataturbo.net/build-threads-57/)
-   -   Finally my 1st (water cooled) turbo build (https://www.miataturbo.net/build-threads-57/finally-my-1st-water-cooled-turbo-build-81806/)

squeegee 10-18-2015 02:38 PM
Actually, That's probably not the problem if you were getting a reading of 19AFR (~5V) I guess it's good to be rigorous, but probably a waste of time.
Where were you measuring the voltage from? I REALLY hope the readings are wrong because if it's putting out a narrowband signal this all makes sense. If not, I don't really have much else to offer except some jokes about cows

ryansmoneypit 10-18-2015 03:46 PM
I cant locate r10. I didn't build the unit, have no interest in building the unit, and don't have a diagram of how it should be. At this point, all I want to do is sign over my paycheck to someone that can fix this. 30 some hours of zero progress is really frustrating.

aidandj 10-18-2015 03:49 PM
Section 3.2.1 of the mtxl user guide. It's the analog output programming. It can be programmed to emulate a narrowband.

aidandj 10-18-2015 03:51 PM
Factory Programmed Defaults:
Analog Output 1 is programmed to output between 0 V for an AFR of 7.35
(gasoline) and 5.0V for an AFR of 22.39. Analog Output 2 is 1.1 V for an AFR of 14 and .1 V for an AFR of 15. Other settings, of course, are easily
programmable between the minimum and maximum range specified earlier.
From the manual

squeegee 10-18-2015 04:00 PM
If I'm not mistaken, he's seeing the proper 0-5v signal at the MS, so it's not a gauge problem

ryansmoneypit 10-18-2015 04:29 PM
yeah, I just checked with the o2 sensor at 22 afr per the mtx gauge, I do see 5v. at the pink wire on the ms. so, correct config on the analog output.

ryansmoneypit 10-18-2015 04:54 PM
I think it is this MS unit. I found the build thread from the guy I bought it from, he never got the car to run right and eventually parted it out.

1. I have ID 1000's/ walbro 190hp and have to use a req. fuel of at least 6.0 just to get it to kind of run, and not even close to idle. 3.0 and it runs for 10-15 seconds then dies. Sitting at 3k rpm it will be running, then just stop, like I turned the ignition off. log shows nothing obvious. This is all on a base map. running the stock FPR.

2. Auto tune will not make any adjustments, regardless of settings. (could be related to discombobulated 02 readings)

3. My WB does not correlate with TS, even though I have a confirmed 0-5v output in the pink 02 signal wire. Once the correct signal goes into this black box, its out of my hands.

I was pretty comfortable with my ms2 and my car used to run great! So its not like I started trying to use TS yesterday., although it feels like that at the moment.

aidandj 10-18-2015 04:57 PM
It very well might be a dud megasquirt. Still have your ms2? II would contact diy, they can diagnose and tell you what is wrong. I've found emailing them gets the best response.

ryansmoneypit 10-18-2015 05:09 PM
Originally Posted by aidandj (Post 1276210)
It very well might be a dud megasquirt. Still have your ms2? II would contact diy, they can diagnose and tell you what is wrong. I've found emailing them gets the best response.
sold the ms2 to fund the 3. I emailed them today, should hear back tomorrow.

squeegee 10-18-2015 05:18 PM
progress :party:

deezums 10-18-2015 06:44 PM
Originally Posted by ryansmoneypit (Post 1276209)
I think it is this MS unit. I found the build thread from the guy I bought it from, he never got the car to run right and eventually parted it out.

1. I have ID 1000's/ walbro 190hp and have to use a req. fuel of at least 6.0 just to get it to kind of run, and not even close to idle. 3.0 and it runs for 10-15 seconds then dies. Sitting at 3k rpm it will be running, then just stop, like I turned the ignition off. log shows nothing obvious. This is all on a base map. running the stock FPR.

The basemap is not made for ID1000's or any modern fuel injector, I am not surprised. I use a seemingly random reqfuel, truth is it really doesn't matter what VE values are or what reqfuel you use. I bet if you try tuning it using the gauge alone, it would work fine. Turn the o2 correction authority to zero or just turn it off.

2. Auto tune will not make any adjustments, regardless of settings. (could be related to discombobulated 02 readings)

Yeah, autotune works off o2 readings only. I bet you see a o2 out of range yellow flag in the low right corner next time you try running it.

3. My WB does not correlate with TS, even though I have a confirmed 0-5v output in the pink 02 signal wire. Once the correct signal goes into this black box, its out of my hands.

Do you have a voltmeter? With the car on, does the voltage reading in tunerstudio jive with the battery/alternator/fuel injectors or is it terribly off?

I was pretty comfortable with my ms2 and my car used to run great! So its not like I started trying to use TS yesterday., although it feels like that at the moment.
stuff and things

ryansmoneypit 10-18-2015 06:54 PM
Originally Posted by deezums (Post 1276232)
stuff and things
I'll check the running voltage.

Good to know that require fuel is just a random number.

The rest of your suggestions I understand and have tried in any configuration you could imagine. I even started an entire new project tune, thinking that maybe my first one had become corrupt somewhere. Same results.

huesmann 10-20-2015 02:23 PM
Slight hijack: with WBO2 setups that have a simulated NB output, can the NB output wire just be connected to the harness end of where the single-wire OEM O2 sensor plugged in (e.g. in an OBD1 car), and will it then work just like the OEM sensor with the stock ECU?

aidandj 10-20-2015 02:28 PM
Yes

patsmx5 10-20-2015 02:29 PM
Originally Posted by ryansmoneypit (Post 1276235)
...
Good to know that require fuel is just a random number....
I would disagree with that. Look into the code and how it's used, it's not just a random number, or at least in the past it wasn't. It used to be used in more than just the fuel table, other things as well were messed up if req fuel was wrong. I just use whatever req fuel it calculates, I don't see any benefit to changing it, my car runs perfect as is.

aidandj 10-20-2015 02:35 PM
REQ_FUEL is a scalar in the Pulsewidth calculation algorithm.

PW = REQ_FUEL * VE * MAP * E + accel + Injector_open_time

E = gamma_Enrich = (Warmup/100) * (O2_Closed Loop/100) * (AirCorr/100) * (BaroCorr/100)

So an "incorrect" req_fuel can be "fixed" by tuning VE.

Source: http://www.megamanual.com/v22manual/mfuel.htm

patsmx5 10-20-2015 02:37 PM
Originally Posted by aidandj (Post 1276797)
REQ_FUEL is a scalar in the Pulsewidth calculation algorithm.

PW = REQ_FUEL * VE * MAP * E + accel + Injector_open_time

So an "incorrect" req_fuel can be "fixed" by tuning VE.

Source: How MegaSquirt(R) EFI Controllers Work
Question, cause I'm not digging through the current code. But in the past, it was also used in places other than just the PW calculation. If it's ONLY used in pulse width calcs then sure, modify it. But is it used anywhere else? Like warm up enrichment, or acceleration enrichment, or anything else?

aidandj 10-20-2015 02:38 PM
Read my edit. PW takes into account the Warmup and accel.

aidandj 10-20-2015 02:39 PM
I'm browsing the current code right now.

patsmx5 10-20-2015 02:41 PM
Also what about injector dead time calcs, wouldn't those cause problems?

aidandj 10-20-2015 02:54 PM
Spent some time looking around. And I didn't come out with anything. There is a lot of Req_fuel mention. But I don't think its the user variable. I don't know how the req_fuel variable we can edit goes down into the code but there is a lot of calculation about req_fuel. So no answer yet.

deezums 10-20-2015 05:02 PM
No, on ms2 corrections are all percentage based except cranking fuel which is derived from reqfuel. That is literally it, cranking pulsewidth percent. Deadline has nothing to do with it Lol.

You are wrong Pat.

ryansmoneypit 10-20-2015 05:18 PM
1 Attachment(s)
I am sending my MS to Brain. It needs a check up, just so I can be certain that it is working correctly. If it is, well then I'm dead in the water again.

New question for you guys. The V Band assemblyS that were sold to me with my ARtech downpipe and exhaust, have this little ring. It is the gasket I suppose. When I drop it into its slot, there is a small gap still between the two ends of the ring. Is this for thermal expansion? I just don't see it growing 1/8" . Wouldn't this just play games with the O2 sensor , these little leak paths?
https://www.miataturbo.net/attachmen...ine=1445375927

patsmx5 10-20-2015 05:22 PM
I've never used a gasket on a V-band before. I always just surface the flanges after welding to make sure they are flat, and bolt them together. No leaks. Are your flanges warped by chance? Maybe that's what that gasket is for, though I agree an 1/8" gap seems like that would leak too...

aidandj 10-20-2015 05:23 PM
This function calculates injector deadtime:

Code:
/**************************************************************************
 **
 ** Calculation of Injector opening time.
 **
 ** Uses a base time setting * correction curve from battery voltage
 **
 **
 **************************************************************************/
signed int calc_opentime(unsigned char inj_no)
{
    int tmp1, tmp2, curve_no;

    // pick curve and lookup base opentime
    if (pin_dualfuel && (ram5.dualfuel_sw2 & 0x04) && (!(*port_dualfuel & pin_dualfuel))) {
        if ((inj_no < 8) && ((ram5.opentime2_opt[0] & 0x80) == 0)) {
            // shared settings from MS3X inj A
            inj_no = 0;
        }
        curve_no = ram5.opentime2_opt[(int)inj_no]& 0x03;
        tmp2 = ram5.inj2Open[inj_no];
    } else {
        if ((inj_no < 8) && ((ram4.opentime_opt[0] & 0x80) == 0)) {
            // shared settings from MS3X inj A
            inj_no = 0;
        }
        curve_no = ram4.opentime_opt[(int)inj_no]& 0x03;
        tmp2 = ram5.injOpen[inj_no];
    }
    // get correction %age
    tmp1 = intrp_1ditable(outpc.batt, 6, (int *) ram_window.pg10.opentimev, 0,
      (int *) &ram_window.pg10.opentime[curve_no][0], 10);
    if (tmp1 < 0) {
        tmp1 = 0;
    } else if (tmp1 > 5000) {
        tmp1 = 5000;
    }
    // scale
    __asm__ __volatile__ (
    "emuls\n"
    "ldx #1000\n"
    "edivs\n"
    :"=y"(tmp1)
    :"d"(tmp1), "y"(tmp2)
    :"x"
    );
    return tmp1;
}

aidandj 10-20-2015 05:23 PM
Post a picture of the v-band flanges. They sound like they are cut for an o-ring. In which case you need that.

patsmx5 10-20-2015 05:37 PM
Originally Posted by aidandj (Post 1276872)
This function calculates injector deadtime:

Code:
/**************************************************************************
 **
 ** Calculation of Injector opening time.
 **
 ** Uses a base time setting * correction curve from battery voltage
 **
 **
 **************************************************************************/
signed int calc_opentime(unsigned char inj_no)
{
    int tmp1, tmp2, curve_no;

    // pick curve and lookup base opentime
    if (pin_dualfuel && (ram5.dualfuel_sw2 & 0x04) && (!(*port_dualfuel & pin_dualfuel))) {
        if ((inj_no < 8) && ((ram5.opentime2_opt[0] & 0x80) == 0)) {
            // shared settings from MS3X inj A
            inj_no = 0;
        }
        curve_no = ram5.opentime2_opt[(int)inj_no]& 0x03;
        tmp2 = ram5.inj2Open[inj_no];
    } else {
        if ((inj_no < 8) && ((ram4.opentime_opt[0] & 0x80) == 0)) {
            // shared settings from MS3X inj A
            inj_no = 0;
        }
        curve_no = ram4.opentime_opt[(int)inj_no]& 0x03;
        tmp2 = ram5.injOpen[inj_no];
    }
    // get correction %age
    tmp1 = intrp_1ditable(outpc.batt, 6, (int *) ram_window.pg10.opentimev, 0,
      (int *) &ram_window.pg10.opentime[curve_no][0], 10);
    if (tmp1 < 0) {
        tmp1 = 0;
    } else if (tmp1 > 5000) {
        tmp1 = 5000;
    }
    // scale
    __asm__ __volatile__ (
    "emuls\n"
    "ldx #1000\n"
    "edivs\n"
    :"=y"(tmp1)
    :"d"(tmp1), "y"(tmp2)
    :"x"
    );
    return tmp1;
}
I don't know what any of that says, I suck at anything to do with code. But I didn't mean that dead time is affected by req fuel (those are two diff things of course). What I was getting at was, would having the wrong req fuel cause tuning problems at low PWs due to injector dead times being a big factor at low PWs. I dunno, just a thought.

I have had no problem running my car with the correct req fuel settings with MS3, so I'm not going to change it for whatever benefit Deezums believes exist by doing so.

Deezems just said cranking fuel is affected by req fuel, so there's something I guess. But I'm sure you can tune around that if it's the only thing affected by the change.

Actually sorry Ryan for all this crap in your thread. But as mentioned, I too am curious to see your V-band flanges. I've never seen one made for a gasket.

deezums 10-20-2015 05:42 PM
Deadtime is measured in pulsewidth and is subtracted from whatever current pulsewidth fueling the megasquirt has decided is required.

How do you not know that? Reqfuel has nothing to do with deadtime and will not change how much latency is subtracted from all your fueling calculations. Do you even know how megasquirt works??

Reqfuel is a MULTIPLIER of VE cells. Multiply. Nothing more. If you have double the reqfuel, it sprays twice the fuel so you can half the VE values. If anything else is based off VE, like percentages as 99.9% of corrections are, it matters not what reqfuel is. If it's based off reqfuel, it will specifically say so in the tunung dialog. Cranking is the only one, because there's no map, no RPM and you basically just squirt a fixed PW till it fires. I see no reason why any other correction would need to be based on reqfuel.

patsmx5 10-20-2015 05:43 PM
Originally Posted by ryansmoneypit (Post 1276869)
I am sending my MS to Brain. It needs a check up, just so I can be certain that it is working correctly. If it is, well then I'm dead in the water again.
I just read through all your troubleshooting. How is the ECU wired to the car? Seems like you are having multiple issues making troubleshooting more difficult. Wouldn't hurt to have the ECU checked out, but it seems there may be a wiring problem perhaps?

patsmx5 10-20-2015 05:50 PM
Originally Posted by deezums (Post 1276879)
Deadtime is measured in pulsewidth and is subtracted from whatever current pulsewidth fueling the megasquirt has decided is required.

How do you not know that? Reqfuel has nothing to do with deadtime and will not change how much latency is subtracted from all your fueling calculations. Do you even know how megasquirt works??

Reqfuel is a MULTIPLIER of VE cells. Multiply. Nothing more. If you have double the reqfuel, it sprays twice the fuel so you can half the VE values. If anything else is based off VE, like percentages as 99.9% of corrections are, it matters not what reqfuel is. If it's based off reqfuel, it will specifically say so in the tunung dialog. Cranking is the only one, because there's no map, no RPM and you basically just squirt a fixed PW till it fires. I see no reason why any other correction would need to be based on reqfuel.
Thanks for attacking me. But yes, I know how it works, have had MS on my car since 2007. I didn't write the code so I don't know when/where it's used. In the past, (2008 MS2E) it was used in multiple places and it was known that having the req fuel wrong would cause other issues (mainly in accel enrichments and startup/warm up) Perhaps that's no longer true, I have no idea. You seem to be certain it's no longer an issue.

ryansmoneypit 10-20-2015 05:53 PM
I would agree with you, except that I now have a dedicated wire from the o2 sensor to the ECU pink wire. I also get the 0 to 5 volt fluctuation based on the AFR reading, but ts just sees garbage.

patsmx5 10-20-2015 05:57 PM
Originally Posted by ryansmoneypit (Post 1276882)
I would agree with you, except that I now have a dedicated wire from the o2 sensor to the ECU pink wire. I also get the 0 to 5 volt fluctuation based on the AFR reading, but ts just sees garbage.
How is the ecu wired to the car?

ryansmoneypit 10-20-2015 05:59 PM
1 Attachment(s)
Flange with a definite cut for something. ..all of the joints use this same aluminum thing.

https://www.miataturbo.net/attachmen...ine=1445378357

deezums 10-20-2015 06:03 PM
Originally Posted by patsmx5 (Post 1276881)
Thanks for attacking me. But yes, I know how it works, have had MS on my car since 2007. I didn't write the code so I don't know when/where it's used. In the past, (2008 MS2E) it was used in multiple places and it was known that having the req fuel wrong would cause other issues (mainly in accel enrichments and startup/warm up) Perhaps that's no longer true, I have no idea. You seem to be certain it's no longer an issue.
So you had a ms2 that used reqfuel based enrichment on warmup, not a percentage multiplication of the VE table? You sure you know how megasquirt works? Would you find me a screenshot of a warmup enrichment plot that is not percentage based?

Again, you had a ms2 that had reqfuel based accel enrichment? Not a percentage based multiplication of the VE table, or an accel pump direct pulsewidth adder? Again, I would like to see this.

You've clearly no clue what reqfuel does, and that's why I attack you. If you are going to post like you know stuff may as well be prepared to verify what you are saying. Instead, it's a mystery number to you and therefore it's not to be adjusted. That's not the case, and that's what I'm saying, it's a super simple global multiplier, that's it.

patsmx5 10-20-2015 06:10 PM
Originally Posted by deezums (Post 1276885)
So you had a ms2 that used reqfuel based enrichment on warmup, not a percentage multiplication of the VE table? You sure you know how megasquirt works? Would you find me a screenshot of a warmup enrichment plot that is not percentage based?

Again, you had a ms2 that had reqfuel based accel enrichment? Not a percentage based multiplication of the VE table, or an accel pump direct pulsewidth adder? Again, I would like to see this.

You've clearly no clue what reqfuel does, and that's why I attack you. If you are going to post like you know stuff may as well be prepared to verify what you are saying. Instead, it's a mystery number to you and therefore it's not to be adjusted. That's not the case, and that's what I'm saying, it's a super simple global multiplier, that's it.
I used a MS2E way back, now I have a MS3 PRO since 2013. I didn't write the code, I promise. I read on msextra forums that having the wrong req fuel caused other issues than just tuning the fuel table. Some people could dial the fuel in when hot, but when cold the car would crank and die, or hesitate on throttle input, etc, problems during warmup. And it from the req fuel being off and the ECU used that.

I will tell you I don't write code, and I can't read that stuff Adian posted either. That I am ignorant on. I do know the basic fuel equations that you know and have posted here. And I've tuned long enough to know how to make my car run well under all conditions.

If it's a super simple global multiplier and you know what you're doing and your car runs better now with a different req fuel, great. It wasn't always like that though. No need to attack someone for telling you this. It's not helping anything.

patsmx5 10-20-2015 06:17 PM
Originally Posted by ryansmoneypit (Post 1276884)
Flange with a definite cut for something. ..all of the joints use this same aluminum thing.

https://www.miataturbo.net/attachmen...ine=1445378357
Yeah that looks different than mine, mine are just flat with no cut like yours shows. On yours, are both sides the same, or one flat and one cut like that for the gasket?

deezums 10-20-2015 06:23 PM
If I run a proper, calculated reqfuel I get PM's from you asking to fix my tune as my VE values are too damn high, no way it runs right!

All of the cold enrichments on a MS2 are percentage based, ASE and warmup. You can read anything on the internet, it's just your job to filter out the bullshit. If you spread bullshit, fuck you.

If one can, in static running conditions, half reqfuel while doubling VE to have the same total fueling, and all modifiers are percentages of the VE value, all multiplications/enrichments must be the same.

Lets say reqfuel 5.0 idle VE 50. Now, reqfuel 2.5, VE 100.

Warmup, 110% at 160f.

50x1.10 = 55
100x1.10 = 110

Look, our warmup VE values are identical still, they are proportionally the same!

So please, quit spreading the bullshit.

ryansmoneypit 10-20-2015 09:35 PM
Sooooo, how 'bout that V Band flange? Yes, both are cut to accept the ring thing. It also uses this monstrosity of a clamp. Like solid stainless on a single hinge on one side, nut and bolt on the otber. Doesn't look cheap. Doesn't necessarily look right either though

m2cupcar 10-21-2015 08:39 AM
Plumbing waste pipes use Vbands with o-rings. I consider using one for EWG purposes but eventually found a correct size exhaust v-band for the same cost. That said, I did manage to find copper o-rings that looked like a fit on paper. So there may be something out there.

ryansmoneypit 10-21-2015 11:56 AM
Ehh, I don't think that a well known fabricator would use sewer V band assemblis on an expensive exhaust.

Jeffbucc 10-21-2015 12:54 PM
I had the same question on my midpipe's v band flange. Turns out it's a flange used in food processing that Abe @ ARTech uses, email him and he can get you the aluminum gasket that goes in the slot.

They’re sanitary flanges and clamps, used in food processing plants, manufactured by Dixon Valve. I can sell you a set if you’d can’t find them. $7/ea for the flanges, $13 for the clamp, and $1 for the o-ring gasket.

Thanks,

Abe Beltran
Artech Fabrication
(214) 923-3710
Artechfabrication.com

ryansmoneypit 10-21-2015 01:10 PM
So back to my original question. Do they not leak at the cut in the o ring, and drive the o2 sensor crazy?

aidandj 10-21-2015 01:10 PM
If I were to guess the o-ring expands when hot and seals.

Just a guess.

patsmx5 10-21-2015 01:31 PM
Originally Posted by ryansmoneypit (Post 1277124)
So back to my original question. Do they not leak at the cut in the o ring, and drive the o2 sensor crazy?
If it's designed to leak a bit (which I would hope not) then I would change it so that it does not leak before the O2 sensor for your reason mentioned. Yes a leak will drive the O2 sensor nuts. So gasket with no break in it, or a different V-band connection like most that you surface flat after welding and then bolt together gasketless.

ryansmoneypit 10-24-2015 09:29 PM
3 Attachment(s)
Since my computer is on hiatus, I decided to move to other tedious things. Like a turbo heat shield. Does this look super lame? It's a tough spot, not much room.


https://www.miataturbo.net/attachmen...ine=1445736555



https://www.miataturbo.net/attachmen...ine=1445736555


https://www.miataturbo.net/attachmen...ine=1445736555

aidandj 10-24-2015 09:30 PM
Looks badass. Just like my license plates. The curve is pretty good. I think a roof for it is supposed to help too.

ryansmoneypit 10-24-2015 09:31 PM
Can I change my title to " All this for a 2560" ?

ryansmoneypit 10-24-2015 09:32 PM
Hahah, I saw your plate, that's where this was born from. I think I will add a roof.

ryansmoneypit 10-24-2015 09:34 PM
Originally Posted by aidandj (Post 1278211)
Looks badass. Just like my license plates. The curve is pretty good. I think a roof for it is supposed to help too.
I haven't forgotten about you...I have been adding in some detail to the coil mount, so when you have it cut, you won't have to screw with much.

patsmx5 10-24-2015 09:35 PM
Looks good. As mentioned build a roof for it. Maybe one for the turbo manifold too.

ryansmoneypit 10-24-2015 09:37 PM
Aww shit. Sounds like this might need to be a big piece.

patsmx5 10-24-2015 09:39 PM
Originally Posted by ryansmoneypit (Post 1278218)
Aww shit. Sounds like this might need to be a big piece.
Could be separate pieces. I did a heat shield for my header a while back and it made an amazing difference in heat management under the hood. If that's your goal, I have to recommend it, it works.

Like this:

https://www.miataturbo.net/attachmen...ine=1442562728

patsmx5 10-24-2015 09:43 PM
Pretty sure I posted this already, but damn I like the attention to detail on that engine bay. All the little things for reliability... Hardlines, oitkier clamps, clamps to restrain things from moving, etc.

stratosteve 10-24-2015 09:56 PM
Originally Posted by ryansmoneypit (Post 1276884)
Flange with a definite cut for something. ..all of the joints use this same aluminum thing.

https://www.miataturbo.net/attachmen...ine=1445378357
I have an Artech side mount that uses those gaskets. They look like aluminum filler rod for tig welding. You could get some rod and cut them slightly longer?

ryansmoneypit 10-24-2015 10:00 PM
Originally Posted by patsmx5 (Post 1278221)
Pretty sure I posted this already, but damn I like the attention to detail on that engine bay. All the little things for reliability... Hardlines, oitkier clamps, clamps to restrain things from moving, etc.
Haha! Someone else knows Oitiker! Thanks man, it's a sloooooow work in progress. Lots of exposed wire from electronic gremlins. I'll fix it soon enough.

ryansmoneypit 10-24-2015 10:00 PM
Originally Posted by stratosteve (Post 1278223)
I have an Artech side mount that uses those gaskets. They look like aluminum filler rod for tig welding. You could get some rod and cut them slightly longer?
This was my next try for tomorrow. Good thinking.

ryansmoneypit 10-24-2015 10:01 PM
Pat, what is that ultra shiny stuff?

patsmx5 10-24-2015 10:02 PM
Originally Posted by ryansmoneypit (Post 1278224)
Haha! Someone else knows Oitiker! Thanks man, it's a sooooo ow work in progress.
I used those clamps to make A/C lines on my car, and they worked for that. Those things are awesome for anything permanent. I know the slooooow part, same for mine. It's slowly starting to become what I want it to be.

patsmx5 10-24-2015 10:04 PM
Originally Posted by ryansmoneypit (Post 1278226)
Pat, what is that ultra shiny stuff?
Mirror polished stainless steel sheet metal I bought on Amazon. Emissivity of ~0.05. Very good at blocking radiant heat.

Thread here with more info on that shield: https://www.miataturbo.net/general-m...uestion-85939/

ryansmoneypit 10-24-2015 10:10 PM
I sense a little bit of hate around here. I don't think some people understand that I have sold literally everything that I owned to build this car. As well as following 18's advice and making my full 401/ Roth contributions.


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