when i'm spraying with a 75 shot what should myt egt's be at? right now n/a they have gotten as high a 1400 a wot and at about 120mph they have gone as high as 1550. i have the probe mounted in the front piece of the y-pipe. any info woubld be appreciated.

 

you could always browse the board, this issue has been gone over dozens of times, but

it depends where the probe is mounted.
you need to get more familiar with what your car does N/A
then judge it when on the bottle.

It shouldnt get much hotter.

Try taking the car to the top of second, third if you can safely
and then do the same run on the bottle and compare

 

Floor it N/A and see what you EGT reads. Log that.

Floor it and spray and see what your EGT reads. Compare.

You want your readings to be close together. If your reading w/nitrous is cooler than without then you are running rich on nitrous. If your reading w/nitrous is warmer, then you are on the lean side.

 

i know that but doesn't 1500 seem kinda high at full throttle at like 120mph. THIS IS N/A WITHOUT NITROUS

 

I assume you are talking about 1500 farenheit. No, that's not deadly hot, you're at full throttle and you're at 120 mph. It doesnt matter if you are with or without nitrous, your fuel pressure will be adjusted properly if you are running a dry or a wet kit.

I'm usually at 1400 F at the end of a quarter mile run at the track.

 

so then it should be about right then. i'm pretty sure i wont be seeing 120mph on a track anyways. so are you at about 1100 to 1200 farenheit going down the highway 60-75?

 

Yeah I'm right in that range. My egt probe is located about 6 inches from the exhaust manifold off the front bank.

 

my probe is about an inch and a half below the manifold flange on the front bank.