Hey Guys!
I got doubts about the EGT. Today I make WOT Log and I notice that my EGT Temps runs about 1,700°F at WOT to redline. I'm reading all cylinders in the collector before the turbo. To be honest I really don't know if is safe or not. Attached is a log and a couples pics of my setup. My A/F ratio is still low around 10.51. I will raise up the fuel and boost as long seeing the progress.
Open to suggestions!
Regards,
EGT Temps
EGT Temps
- Attachments
-
- 4.jpg (129.24 KiB) Viewed 11461 times
-
- 3.jpg (123.21 KiB) Viewed 11461 times
-
- 2.jpg (146.72 KiB) Viewed 11461 times
-
- 1.jpg (109.53 KiB) Viewed 11461 times
-
- 1 WOT Log.zip
- WOT Log
- (6.65 KiB) Downloaded 592 times
Re: EGT Temps
Some say that if the EGT's go past 1500F the shaft of the stock turbo will soften and may bend. However, the shaft needs to reach the 1500F itself, so it will take a while for that 1700F exhaust gasses to heat it up.
2008 Cosmic Blue Mazda 3MPS
Built engine + WMI + GTX3071 gen2, ~509BHP @34PSI
2008 Icy Blue Mazda CX7
Stock engine and exhaust (YES!!), JBR3" + GTX2867 gen2 + Autotech HPFP, self-tuned to 330-ish BHP
Built engine + WMI + GTX3071 gen2, ~509BHP @34PSI
2008 Icy Blue Mazda CX7
Stock engine and exhaust (YES!!), JBR3" + GTX2867 gen2 + Autotech HPFP, self-tuned to 330-ish BHP
Re: EGT Temps
Some people measure the EGT in one cylinder and some people said is you go beyond 1,600 it will not be safe and others said that this cars runs very hot on the EGT's. In my case i'm measuring the 4 cylinders in the collector before the turbo. Now my question is, what is safe when measuring the EGT's like im doing it? Between which range it would be good to keep it? I know some engines runs different.mituc wrote:Some say that if the EGT's go past 1500F the shaft of the stock turbo will soften and may bend. However, the shaft needs to reach the 1500F itself, so it will take a while for that 1700F exhaust gasses to heat it up.
Sorry for all my questions.
Regards,
- Steve @ VersaTune
- Lead tuner
- Posts: 1157
- Joined: March 29th, 2010, 12:58 pm
Re: EGT Temps
If you're pushing the inj DC to the limit, you will see very high EGTs since fuel is burning in the exhaust stroke and possibly even in the manifold.
Re: EGT Temps
I haven't touch the Injectors DC yet. Right now I'm running rich around 10.5 AFR. What you think about my log in the first post? BTW is a 3rd gear pull.Steve @ VersaTune wrote:If you're pushing the inj DC to the limit, you will see very high EGTs since fuel is burning in the exhaust stroke and possibly even in the manifold.
Regards,
Sent from my Classic EVO!