where to tap for EGT if going tubular manifold?

[VQdriver]

i was wondering where a good location for the EGT sensor would be. i know ideally on the manifold itself, but welding on it would compromise the strength correct? unfortuneately my original defi probe was damaged during the manifold swap to begin with. several attempts to salvage and swap used (different brand) probes have failed. i might gamble and buy an EGT probe from ebay, but those are autometer brand. i'm not sure if the sensors would be compatible with Defi. i probably might just end up buying an entirely new gauge since that's the only guaranteed to work solution. the idea was presented to me by my buddy doing the install. perhaps the location of the sensor is too far away and is causing the signal to fall out of range of the gauge, thus the gauge not working properly. i'd like to think the sensors aren't compatible with the gauge. but ideas are needed. what do you guys with the tubular manifold do with the EGT?

[mike2016]

You can buy the Defi EGT sensor seperately, Defi provides it as a repair part and we have it available.

usually you should install the EGT on the No.2 or No.3 Runner, since these 2 are the hottest.

[VQdriver]

Originally Posted by mike2016

You can buy the Defi EGT sensor seperately, Defi provides it as a repair part and we have it available.

usually you should install the EGT on the No.2 or No.3 Runner, since these 2 are the hottest.

i sent you a PM but where can i find it and for how much? i need it asap. the last place i tried to source it from said it had to arrive in a container with their other shipment 2 months from now. can you get it to me asap? won't tapping into a tubular manifold increase the chances of cracking?

[mike2016]

PM'd you back. you are tapping on the runner(the pipe) itself, not the welds, so it shouldn't affect the life span of the manifold.

[SOUTHSTAR]

Can you tap the manifold while it is installe don the motor with the turbo and everything or do you have to remove the manifold to tap for the probe?

Wont shavings get into the turbo if you tap it while the turbo is installed?

[projectRDM]

Tap it into the exhaust housing on the turbo, guaranteed to be more accurate and secure.

[ultraDorksGarage]

Originally Posted by mike2016

You can buy the Defi EGT sensor seperately, Defi provides it as a repair part and we have it available.

usually you should install the EGT on the No.2 or No.3 Runner, since these 2 are the hottest.

depends, if u are not using a stand alone computer to individually trim cylinders, id go with it on the exhaust knuckle.

if u are standalone and can spend the cash on a new egt every month than by all means tap 1 in each runner.

1 tubular manifolds after a mountain run are cherry red, shizz even after a dyno run they are glowing. tapping into a tubular manifold will shorten your egt probe life by alot. too much heat and turbulance.

2 basically most ppl here probe a runner and the exhaust knuckjle. take a baseline for about 1400 degrees at the runner and see corresponding temp at knuckle. that way u plug runner up and use knuckle temp to tune/data record. think its about 1280-1340 to attain 1450 at the runner or something. this depends alot on runner design and turbo efficienceys.

personally ive seen way too many cracked manifolds to ever chance tapping into a tubular manifold. drag teams do it, but they dont have to drive the car when it blows something. also if u mean tap as in puncture and run the probe band instead of welding a bung on, do it after turbo, u will lose some ehaust pulse as if u had a small crack if u dont seal it good.