Hey guys installed my pyro/boost gauge 2 weeks ago at home following instructions provided here everything went without a hitch and looks good. My question is EGT's they seem off with engine off the gauge allways reads just under 200 degrees and freeway driving 65-70 im seeing usually 800 degrees does this seem off? I cant figure out how to get the gauge to zero out. The probe is installed on the passenger manifold detailed on many links and i didnt trim or cut the pyro leads. Not sure if something is wrong with gauge or wiring. Thanks

Hey guys installed my pyro/boost gauge 2 weeks ago at home following instructions provided here everything went without a hitch and looks good. My question is EGT's they seem off with engine off the gauge allways reads just under 200 degrees and freeway driving 65-70 im seeing usually 800 degrees does this seem off? I cant figure out how to get the gauge to zero out. The probe is installed on the passenger manifold detailed on many links and i didnt trim or cut the pyro leads. Not sure if something is wrong with gauge or wiring. Thanks

My gauge does the same thing but when I turn the key on when I'm going to start it the gauge goes down to 0 and then up as soon as I turn the engine over. Also if your truck is all stock then it sounds about right. Mine is around 600 at 70mph with all my mods. You should fill out your signature so we know what your mods are.

You are fine, stock ~800 to 900.
They all read off with no power.

mine does the same thing. I've always just adjusted it in my head to read 150 degrees lower. I thought I was the only one. LOL

When I first installed mine, I cut the ground wire while crimping an end onto it and it never moved above 0. After that was fixed it worked fine, 0 with the ignition off, about 600-800 at highway speeds on level ground, sometimes over 1000 going up a 7% grade at highway speed, as low as 100 going down a long winding mountain road using a lot of engine brake. As soon as I touch the gas pedal it goes up to 200-300. I haven't paid much attention to it in city driving, except when I'm parked so I know when it's safe to shut down.

Whata a safe temp on our Pyro's to shut down? (Normal city driving)

They say that 300 F is good but when you get home sit and watch the temps drop and time them this will tell you when EGT is maybe optimal?See how far below they drop below 300 F??? Something else that you need to cool an engine for is to cool the turbo down,There clearances are very small several 10,000 ths of and inch if you cook the oil they become smaller. Even out the head temps this should reduce them warping and evenly shrinking.

Thanks for all the replys this is the best site bar none that I'm a member of. nuthing but informative Q & A's with no azzhats telling you your a retard :D.

mine does the same thing. I've always just adjusted it in my head to read 150 degrees lower. I thought I was the only one. LOL

Please elaborate on this, I think your ideology might be a little skewed.

If the gauge starts out at 175 with the truck not running, I just subtract about 150 degrees when it is running.

If the gauge starts out at 175 with the truck not running, I just subtract about 150 degrees when it is running.

You might find that all Autometer gauges do that at start up, but the reading you actually see while driving is the actual temp coming out of the manifold... You might want to re-think those #'s when you are pulling a trailer and see 1500°, thinking you are really at 1350°.

If the gauge starts out at 175 with the truck not running, I just subtract about 150 degrees when it is running.

The pyro needs power to operate. The 175 your seeing is most likely the temp you shut the truck off at.

If you turn on the ign without starting up, the gauge should drop to zero then back up to ambient air temp (if the eng is cold)

You might find that all Autometer gauges do that at start up, but the reading you actually see while driving is the actual temp coming out of the manifold... You might want to re-think those #'s when you are pulling a trailer and see 1500°, thinking you are really at 1350°.

I'll check this out tonight when I go for a ride. I've never really bothered with it because the truck never sees a trailer. The only time the truck see high egt's is when I was sled pulling last summer and it didn't matter what the gauge said because I wasn't going to get out of it until the sled stopped me. :D If I were to ever be in a position where the egts were critical I would spend more time and figure out how accurate the gauge was

The pyro needs power to operate. The 175 your seeing is most likely the temp you shut the truck off at.

If you turn on the ign without starting up, the gauge should drop to zero then back up to ambient air temp (if the eng is cold)

OK. I just went out and checked. You both were right. This is what my gauges are doing. I never actually paid enough attention to verify this before. I bought the gauges used and was told at the time that the pyro was off about 175 degrees. I've never gave it a second thought until now. this does make me feel better about the temps I'm seeing when driving the truck.

on edit: what should the gauge read when the truck is just started and sitting at idle, assuming an oat of ~40 degrees?

With the motor up to operating temp it should be around 300*

On a cold start Id guess around 125-175

With the motor up to operating temp it should be around 300*

On a cold start Id guess around 125-175


:iamwithst

OK. I just went out and checked. You both were right. This is what my gauges are doing. I never actually paid enough attention to verify this before. I bought the gauges used and was told at the time that the pyro was off about 175 degrees. I've never gave it a second thought until now. this does make me feel better about the temps I'm seeing when driving the truck.

on edit: what should the gauge read when the truck is just started and sitting at idle, assuming an oat of ~40 degrees?

Now is the hardest part, to reprogam your brain to subtracting the 150 degrees and to believe the gauge.

i was bored and decided to check this thread out because i just got my gauges installed and the thing bout the needle staying at a temp and than going to another when you turn the key on was new to me lol. but i got a question im gonna be pulling my friend's vetter to the strip this coming saturday and have never really hauled anything yet? what should be the egt temp? around what temp anyway? and do i run in tow/haul mode all the way? i will be going about 100 miles about 80 the whole way?

i was bored and decided to check this thread out because i just got my gauges installed and the thing bout the needle staying at a temp and than going to another when you turn the key on was new to me lol. but i got a question im gonna be pulling my friend's vetter to the strip this coming saturday and have never really hauled anything yet? what should be the egt temp? around what temp anyway? and do i run in tow/haul mode all the way? i will be going about 100 miles about 80 the whole way?

1350° maximum sustained, but I like to peak at that and then try to hold them back to 1300° or less.

mine sits at 200 when i turn the key off? its done it ever since they were installed

the gauge reads about 750 cruising down the highway at about 75 mph. I can live with that.

How about this scenario. I installed my autometer guages in my pillar, but have not yet bored a hole in my manifold. When I first put power to the guage, it came up to 100, sometimes stayed there at power down, sometimes not. Last december, it changed from 100 to 200, and the probe is still looped, and tied up under the hood, not installed. I would have remoed it and gone after a warranty replacement, but procrastinated too long.

Now waiting for a new one, unless I can somehow fix this one.

How about this scenario. I installed my autometer guages in my pillar, but have not yet bored a hole in my manifold. When I first put power to the guage, it came up to 100, sometimes stayed there at power down, sometimes not. Last december, it changed from 100 to 200, and the probe is still looped, and tied up under the hood, not installed. I would have remoed it and gone after a warranty replacement, but procrastinated too long.

Now waiting for a new one, unless I can somehow fix this one.

I would bet nothing is wrong with it. Install it and see what it reads at 70 mph and report back. If all you have to do is drill and tap, it should only take you 30 minutes, start to finish , including taking out the fender well.

Earlier in this thread Diesel52 said that an optimal temp to shut down your engine was 300F. I've only had my gauges installed a couple of days but all day today I've watched my Pyro and it hasn't gotten down anywhere near that. Even after idleing 5 or so minutes. The lowest it has gotten down to is 400. Is this a problem? When I'm running around town temps are around 600 but go down to 400 when I come off the gas or at a stop light.

I turn mine off @ 400 and below... I try for 350/375.