got my egt today, no i would like some suggestion on placement?
thanks in advance,chris
BTW is bhaf, a big honkin air filter?

 

depends on what you got ..one brand is safe b4 the turbo all others better put after the turbo.
if i rember corectly the safe one starts with the letter h -halstead or somthing like that.
[reason is you dont want the probe breaking off and going thue the turbo.

 

well now if i'd pulled my head from my rectum i'd have thought of that seeing how every snowmobile i ever turboed......we put them "after the turbo"! thanks for reminding me!

 

You will get a more true reading if you put it before the turbo. Ive heard there is a 300 degree difference before and after.

 

Pre-turbo is prefered for most users.

Here are pretty good instructions for installation.
http://www.tstproducts.com/gauge_install.html

 

Never heard of some that were meant only post turbo. I did mine like the TSTProducts instructions. Worked like a champ. FWIW.

 

I would strongly suggest placing the thermocouple pre turbo. Yes there is supposed to be a 300* difference but that rule of thumb changes with any modifications. I have only heard of a K type and a J type thermocouple. J is for up to 600* and K is up to 1500*.

 

dont know to much about little snomobile engs ,i was tring to pt. you in the right diretion if you were completly in the dark about this.
as stated b4 the turbo is the best place but not all probes should be b4 the turbo!

 

[quote author=thumper 549 link=board=7;threadid=18364;start=0#msg172193 date=1060821352]
if i rember corectly the safe one starts with the letter h -halstead or somthing like that.

[/quote]

I think "Hewitt" is the name you're looking for. As far as I know, they're the only company out there offering a lifetime warranty on a thermocouple.

In my opinion, you'll be fine installing any quality name brand thermocouple before the turbo.

 

You will get a more accurate reading pre turbo. I have installed lots of Isspro and a few Autometer before turbo with no problems. I put an Isspro t-couple pre turbo on my 91 D250 in 1995, 250,000 mi later it is working perfect.

 

I have an autometer and will place it at the "y" in the manifold?
thank you all very much.you've been AWSOME!

 

XLR8-
I followed the TST instructions to the T. It worked like a champ. PM me if you want more details, as I also went the extra mile to ensure no fillings could go into my turbo.

 

Well I'll be drillin exhaust manifold for pyro on sunday, wish me luck, gonna remove turbo though since it is an 03' and looks like manifold turns straight down into turbo!