cruising im at ~500-600, full boost the highest i hit is ~800-900. my plenum increased them ~50-100, i was ~400 cruising before.

my probe is about 16 inches from the engine.

i saw a previous post where some were hitting ~1200-1400. thats crazy!

 

I got the Zeitronix and I'm hitting the same as you Tig with the Vortech and stock pulley.

 

That's normal if you put the probe where it's supposed to go (3 or 4 inches from the cyl head). Mine will be farther away as well though, I'm not taking off a header!

Where did you tap yours? Did you have to weld on a bung?

 

If you probe is with in a couple inches from the head . You will see over 1400 degrees at redline . No problem . The more timing retard..the higher the temp . When I first started road tuning and had plenty of timing retard , I saw 1500 degree's a couple of times . Cruising is from 590 to 630 depending on load .

 

celsius or farenheit???

 

Im right in btw 1200-1400 as well

 

you cant tell me there is a 700 degree difference a foot downstream, really? i just drilled and tapped my xover pipe.

 

he is talking degrees F and others are talking C. 1500C would turn your block into a blob.

 

1500f....815C is 1500F

 

Mine's right after the head, like 2-3 inches, and I get a maximum of about 820 celcius under full load, around 1500F. It usually stays right below 800C. That number was actually higher before my last tune at GRD (up to almost 900).

 

Mine are in the top of the test pipe. I often see 1300F-1400F max.

 

this thread has already become worthless.. because unless it is specified C or F after every single mention of any temperature number, then there is no way for anyone to know wtf you are talking about. You also have to specify where exactly the sensor is, because the different is pretty big.

Also, EGT gauges are pretty slow to respond, and EGT doesnt really tell you anything unless you know at least your A/F at the same time... EGT gauges are worthless unless you have a probe in each cylinder, IMHO.

 

i have the Zeitronix unit, so i can view EGT and AFR instantly, and log it so that isnt a problem, but i do only have 1 probe. and mine is in Celcius also.

 

If you bought the Zietronix after April it has a option to show C or F

With one probe...the best you can do is put it in the header that runs the hottest...if you know which one it is

 

I see up to 1400 deg F with my setup under hard throttle. My probe is just to the header side of the collector on the header if I remember correctly.

 

i found where i can change the logger to F, but can i change the display to F?

 

1400F max with continious WOT running. For me, anything about 1450F is cause for concern.

And no, EGT gauges are not worthless. There are plenty of instances where Wideband AF can be totally normal, and your EGT's very hot.

 

im hitting ~1400 F after conversion, and my probe is 16 inches downstream, isnt that a little high?

 

[QUOTE=tig488]i found where i can change the logger to F, but can i change the display to F?[/QUOTE

That I dont know tig488 . I emailed them about it And found out mine was an older version

 

I screwed that up badly.......Meant to say......I saw 815 C. [ 1500 F ] at redline and cruising is 590 C. to 630 C.