Typical EGT temps

Tuning concepts, methods, tips etc.

Moderators: jsmcortina, muythaibxr

Post Reply
JAM
Master MS/Extra'er
Posts: 626
Joined: Sun Jan 22, 2006 7:58 pm
Location: Cincinatti,OH

Typical EGT temps

Post by JAM »

A general question looking for some real world feedback- what EGT temps do you see at idle and WOT? What engine and application do you have? I know this can vary depending on a million variables but lets hear it!
Top
grom_e30
Super MS/Extra'er
Posts: 4461
Joined: Thu Mar 08, 2012 12:44 pm
Location: UK

Re: Typical EGT temps

Post by grom_e30 »

I see about 400c at idle, and about 760-780c cruising at 70mph top gear and is see maybe up to 800c under full throttle from 70mph cruise speed. on a bmw m20b25 n/a inline 6 2valve per cylinder engine.
1990 bmw 320i daily driver with m20b25 ms3 sequential fuel, 380cc injectors, d585 coil near plug, home made cam sync, launch control, fan control, vss, homebrew egt logging what's next????
Top
ashford
Super MS/Extra'er
Posts: 1605
Joined: Sun Apr 27, 2008 4:29 pm

Re: Typical EGT temps

Post by ashford »

this varies a bit for me, i have the iox with 8 egt. being cheap i bought 8 cheap probes. they vary about 200* f for me switching the physical probes around temps follows the probe not the port it was in.

i have a turbocharged sbf making around 750-800hp running e85 typical temps for me are 1500-1700*F, i did however have a wasegate failure once and run up to 20 lbs boost and not enought injector, i saw a brief mid 14 afr and egt of 1950* :shock: .
Top
turbo conversion
Super MS/Extra'er
Posts: 1281
Joined: Thu Aug 19, 2010 6:22 pm
Location: White House, TN USA

Re: Typical EGT temps

Post by turbo conversion »

ashford wrote:this varies a bit for me, i have the iox with 8 egt. being cheap i bought 8 cheap probes. they vary about 200* f for me switching the physical probes around temps follows the probe not the port it was in.

i have a turbocharged sbf making around 750-800hp running e85 typical temps for me are 1500-1700*F, i did however have a wasegate failure once and run up to 20 lbs boost and not enought injector, i saw a brief mid 14 afr and egt of 1950* :shock: .
Do you not have over boost protection?
1976 Datsun 280Z L28ET Garrett GT35R T3-T04E stage3 50 trim 63 A/R housing custom grind cam 2000-6000 rpm 440cc injectors intercooled 18 lbs. boost
3" exhaust turbo back LC-1 o2 sensor Hallman manual boost controller EDIS 6 ignition batch fire 60mm throttle body 5 spd T5 borg warner 3.54 lsd
Top
ashford
Super MS/Extra'er
Posts: 1605
Joined: Sun Apr 27, 2008 4:29 pm

Re: Typical EGT temps

Post by ashford »

turbo conversion wrote:
ashford wrote:this varies a bit for me, i have the iox with 8 egt. being cheap i bought 8 cheap probes. they vary about 200* f for me switching the physical probes around temps follows the probe not the port it was in.

i have a turbocharged sbf making around 750-800hp running e85 typical temps for me are 1500-1700*F, i did however have a wasegate failure once and run up to 20 lbs boost and not enought injector, i saw a brief mid 14 afr and egt of 1950* :shock: .
Do you not have over boost protection?
at that time no, i had afr and egt safety, egt safety added more fuel and maxed out injectors/pump then afr safety shut the engine down
Top
Post Reply

Return to “Tuning”