Are the fittings that you install on your exhaust manifold universally compatible with all pyro probes ? The reason I ask is that I want to go ahead and get a EGT gauge. But down the road I may decide to get a box that has a digital gauge built in. I really don't want to have to drill another hole in the manifold. Can I simply remove the original probe and insert the new probe in? Or are you locked to one probe once you install?

 

That's a good question-I'd like to know that too.

 

I just installed the Edge Juice with Attitude yesterday. I know the fitting has a 1/8" NPT on the exhaust side and a 7/16" coarse thread on the pyro side.

Anybody know about others?

 

I can tell you definitively that Isspro and Diprocol pyro fittings are different. One is a compression fitting (Isspro) and the DiProcol has a ridge on the probe itself, and the fitting just slightly compresses it, but is not adjustable in depth. I drilled the #4/5/6 runners where they meet in the collector.

 

John, a little off topic, but how did you drill the manifold where you did. The top of the engine bay prevents me from getting that far back if I want to drill straight down. To get that far back would require me to angle the drill, which is not what I want to do.

 

A regular 18v Craftsman drill (biggun'). It's slightly at an angle, but not much. I can tell you the Diprocol pyro probe is slow as hell. It only registers 1250 at the end of the 1/4m, when I know it should be around 14-1500. My little jap car had "Defi" gauges, and the pyro was fast as all get out. Just stand on a ladder and aim straight down Blue

 

A lot of themocouple probes are either 1/8 or 1/4 inch pipe thread. what they each do with those pipe thread mounts is another story. If I were you I would check out the various probes you are interested in, and then make sure they have the same mount.

Not all 1/4" ior 1/8" pipe thread mounts are the same (each mfg will be different), but you can back out the pipe thread portion and put the new one in. I've exchanged Hewett/VDO, Hewett/Banks and SPA thermocpoules all day -- all 1/4" pipe thread with different probe sizes, depths, etc.

At the end of the day, the risk is not zero if you want to drill now and install later, but you can reduce the risk to near zero by drilling for 1/4" NPT. then just get an adapter if your probe happens to be 1/8" NPT.

I'm familiar with only two fueling box EGT probes (Banks and TST). both use 1/4 pipe thread Hewett probes, which appear to be an attractive (low cost) OEM solution for resale. I have no idea what Edge is using.

 

Has anyone heard of anyone's manifold cracking due to drilling it? Today i was warned not to drill into the manifold cause it will crack it. Ive seen tons of pics on here of people drilling in the manifold...