EGT Gauge - Pre or Post Turbo?

Thermoguard Instruments(who advertise on this site) recommend fitting the sensor upstream of turbo.
Regards.
Vince

that would be pre. You have an opportunity to have it installed where you like. I installed mine post as it was most convenient. At the end of the day it's an indication of what is going on with the engine regardless of the temp being displayed.

Leroy

Simon,

Good on topic article from Ian : http://www.thermoguard.com.au/FAQ.pdf

Most seem to fit them post turbo - I think the tubo's often have the port present. There is apparently a 200c drop in temp across the turbo.
What I have learned from reading:
Pre turbo temps the EGT should no go above 720c.
Post turbo temps 500c-550c.

It seems the argument for post turbo is that it reduces the risk of sensor failure or carbon deposits damaging the impellor.
I think a pre turbo sensor will give you a far more accurate indication of what is actually going on in the motor.

Paul.

depends what you want to do with the info.
I have a sensor right in the exhaust manifold before the exhaust pipe where you gate the real and actual exhaust temperature and it is coupled with a water vapour injection which is calibrated to 1050F EGT as a trigger point. when you want a simple reading of the engine activity post or pre will do when you consider than post is always much lower than pre. I prefer pre because I want to know when my turbo runs red :)).. the turbo timer is coupled right before the turbo and not in the manifold to measure turbo temp engine cut off.. so in short .. it depends on the purpose ..
have fun
gmd

Thanks for the info.

The turbo is already installed and dynoed, so I don't think they will be too keen to be pulling off the exhaust manifold to intall it pre-turbo, so probably have to just live with it being post turbo.