[widebody]

my autometer probe is very quick, i switched from greddy when my greddy probe melted, either way the whole quickness issue could also be related to how close your probe is to the head

 

[hdswanny]

i had my probe tapped into runner#2 about 2.5" from the head.
my buddy had his tapped in the same location.

i did hear that the Greddy probes don't last that long, but maybe thats due to intallation issues or quality issues from the manufacturer.

 

[OneFast97GST]

Widebody are you running the stock Autometer probe that came with the kit?


I don't understand this--- One person says it slower than molasess, and another says it's quick. Which is it?

Thanks!

 

[Xanaduce]

From all the opinions listed above, it is looking as if I have a ton of research to do, before i pick which gauge/probe combo I want. I don't really see myself beign the fastest guy in the group (not cutting edge.) So I'm thinking I'd be fine with an autometer. even though 1650 is the sweet spot, maybe for em that's a little high, but I'm off to do my own research.

 

[OneFast97GST]

I'm with you on that one. I just bought my Autometer gauge on Friday. It should be here today or tomorrow. I ordered it from Summitracing.com for $112. Even though it tops at 1600, I won't be tuning too close to that. Maybe 1575-1590 tops.

 

[Trevor]

It depends on which Autometer probe you get.
http://www.autometer.com/hp/2001_catalog/accessories/90.html

The first EGT probe I installed on my front manifold was a skinny "competition" model. VERY responsive...it's been in there 2 years with regular trips to 1650F.

When I decided to install a second EGT probe in the rear manifold I decided to "step up" to the fat "Pro" series probe. WHOOPS! The thing is slow as hell and reads 40-110F colder than the cheaper "competition/sportsman" probe.

They're both located 3" off the head. I've swapped probes/gauges and the slow response follows the "pro" probe. Don't buy it...buy the competition/sportsman.

Hope that cleared it up.

 

[OneFast97GST]

Trevor-

That cleared up alot of misunderstand. Thanks! I'm going to look into the competition one. My Autometer gauge came in today. Can't wait to see it when I get home. How much did you pay for that competition probe?

Thanks.

 

[Trevor]

It's been awhile...I don't remember how much I payed for it. I just checked and it's $97 at Summit and Jegs.

 

[Geo]

I have a buddy that works at roush racing. They use some digital egt's he got me a couple but the probes are freaking long. The shortest of the is about 6" and the longest is about 15" long. I can't complain I didn't pay anything for them. I is hard to find a spot for the gauge though. Should I just buy the TRE K probe?

 

[flix82]

i guess that i am kinda late to jump into this discussion. I am soon getting a Greddy gauge (52mm, and not peak holding funktion), but the gauge that i will get (used) doesn't come with the probe.

What probe should i get? Is the Westach good? or is the TRE for $38 better???

 

[OneFast97GST]

Hey guys, I got my Autometer EGT gauge in about a week ago. I haven't put it in yet. I'm just going to use the stock probe for now. Where did you guys put your probe in the Exhaust manifold? Do you place it in the center of the 4 large bolts or on one of the runners. If on the runners, how far from the head did you drill it?

Thanks!

 

[blazinmaniac]

i have mine drilled into the #1 runner about 2.5 inches off the head.. It is an autometer, i use the probe it came with the gauge.. Honestly, it is pretty darn fast, gets from 1200-1450 pretty quick, but i never really stare at it cuz im too busy trying to keep the torque steer under control.

 

[DSMRSTPOS]

mines on the #1 runner about 4 inches from the head. i think i mentioned that back on page one. you can put it closer, but all that will do is register hotter on the gauge, and since it only goes to 1600 anyway its probably best for it to read cooler so you have more room to play with.

 

[OneFast97GST]

You guys that have installed the Autometer EGT gauge and probe i need some help here. I'm not sure exactly where to tap the hole in the #1 runner. Some say 4". There is a high part in the runner(approx 4" from the flange) where the heat shield mounts to. It's about 1/4" higher than the rest of the runner. I thought about putting it in there(next to the treaded hole) because If you put in directly into the runner, the probe is way too long and darn near touches the other side. Please give me some advice here on whether that's a good place for me to tap.

Thanks!

 

[flix82]

i'm waiting for my Greddy EGT gauge now, so i have never instaled an EGT gauge.

I would say though that the best is as close as possible to the cylinder as possible. I have to do some reading on that, but this is what i would say now because you want to read the temperature of the exhaust as precise as possible. If you probe is 4 inches away, the exhaust will obsiously cool down before it hits the probe. Well lets say you tuned you car to 1650 degrees (supposed to be the optimum (most power) you will get false readings since the gauge reads too low. So if you werre to tune it for 1650, you would probably run 1700 in the cylinder and it would dry your piston and valves...

I woul say drill it as close as possible to the cylinder in the #1 cylinder...

Anyone ther suggestions (since i am talking uot of theory since i've never done it myself, just pure theroy)...

 

[DSMRSTPOS]

im not sure where everyone gets this magical 1650 number from anyway. there are so many variables relating to the EGT temperature anyway. your best bet is to dyno tune the car eventually anyway, and when doing that, you can see what temperature YOUR car makes the most HP at on YOUR gauge. as far as tapping the gauge, my probe did hit the manifold wall too until i backed out the adapter that threads into the manifold. i just backed it out until the probe wasnt hitting the wall anymore, then made sure it wasnt leaking when it was running, which it wasnt. if you are going to tune on the very edge of detonation, use a wideband 02 and a dyno. me personally id rather run 1/10 or 2 slower and be safe.

 

[flix82]

well yeah i don't have my EGT gauge yet, but i know a couple of people that said that 1650 is pretty good for our cars. Obviously dynoing a car is better, but seriously a lot of people don't have the money for it. Sure if you don't have the money you shouldn't be messing around with cars anyway, but still...
How much is dynoing? $150? (i have no idea)... If 1650 is supposed to be a fairly good value, why not try to tune it to that. I also have to say that i would rather be close and tune for 1550 or something like that but still... My point is that if you put the probe too far away from the actual cylinder you will get wrong results and if you try to tune it for let's say 1600, the actual cylinder temperature (which is the important factor) will be a lot higher...

The closer the better i guess...!! Or am i wrong?

 

[BooostedThrills]

what do the experts do

where do the experts put the probe at you know the guys running 9's and lower I say do what they do thats what I love about these websites -somebody else has already broken more parts on these cars than I will ever know existed

 

[OneFast97GST]

I just put my Autometer probe on 1st runner on the raised part where the screw hole is for the heat sheild. It's 4" from the head. In my opinion, that's the only place you could put the probe. If you put it anywhere else on the runner, the probe is way too long. With it being where i put it, the probe hangs down 1/2 way in the 1st runner.

 

[whatturbo]

Now that you have it installed, what do you think about the responsiveness of the probe?