For you guys with egt gauges, what should the temperature be when idling, cruising and, under full boost (~7-8psi)? I've searched in the archive and didn't really find too much there. I've also asked a few 4g63 owners and they're saying it varies from car to car? What temps have you guys noticed with your turbo setups. Is there a certain max temperature that I should watch for? Thanks in advance.

Fly1
1998 Eclipse GS
HRC stage 2 turbo system

Hahn has a good write up at the below URL:

http://www.turbosystem.com/Hahn_Automotive/Tech_Information/tech_information.html

Basically, ideal EGT temps depend on where the probe is mounted... I have mine in runner 1 of the exhaust mani about an inch from the exhuast port, so I typically see around 1400 degrees fareheit tops at WOT... I am running really rich so I have room to lean it out. You don't want to exceed 1550-1600 degrees at this location. If you mounted after the turbo in the downpipe since you have a hahnsetup, expect a thermal difference of 200 degrees. If you have a EGT guage that measures celcius, you will have to figure the temps yourself since i'm stoopid and don't want to search for the convesion formula...

DoN
'99 GS Sports Edition
Star Stage 2, CFDF Clutch
Greddy Manual Boost Controller
Greddy BOV and EVO Exhaust
Greddy TT and shift knob
AF/X Underdrive Pulley
AEM Big Brake Kit
B&M Edge Short Shifter
Eibach Sportlines with Tokiko Blues