A discussion on EGT and Exhaust back pressure on an OM606
A discussion on EGT and Exhaust back pressure on an OM606
02-06-2020, 02:26 PM
#24
To be perfectly clear- I have a direct read boost gauge which is reading "relative" to atmosphere - "boost" - ... as well as my MAP sensor which is reading absolute. My boost target table (absolute) via the MAP is set to 2750 mB (approx. 1.75 bar -relative) or about 26 PSI of "boost". I'm getting that amount of boost easily and I can spike 30 Psi momentarily until VNT control stabilizes it at 26 psi. Even with my fuel map backed off to 90% of max fueling, I can easily spike 1500F on my EGT gauge in any gear above 1st.
I have A huge intercooler and my 3" exhaust is very free flowing but I know my current turbo's hot side is a little small as my EMAP at higher RPM can get above 4000 mB. BUT even before I see high EMAP, I see very high EGT when I floor it.
This post was last modified: 02-06-2020, 02:29 PM by jav1.
Yes- I'm using overdrive. I can spike EGT in any gear except 1st but only because it won't stay in 1st long enough to register enough rise on the pyro. TC locked or unlocked- I have more than enough fuel - even with high boost- to spike EGT above safe levels.
To be perfectly clear- I have a direct read boost gauge which is reading "relative" to atmosphere - "boost" - ... as well as my MAP sensor which is reading absolute. My boost target table (absolute) via the MAP is set to 2750 mB (approx. 1.75 bar -relative) or about 26 PSI of "boost". I'm getting that amount of boost easily and I can spike 30 Psi momentarily until VNT control stabilizes it at 26 psi. Even with my fuel map backed off to 90% of max fueling, I can easily spike 1500F on my EGT gauge in any gear above 1st.
I have A huge intercooler and my 3" exhaust is very free flowing but I know my current turbo's hot side is a little small as my EMAP at higher RPM can get above 4000 mB. BUT even before I see high EMAP, I see very high EGT when I floor it.
Messages In This Thread
A discussion on EGT and Exhaust back pressure on an OM606 - by 50harleyrider - 01-27-2020, 06:56 PM
RE: A discussion on EGT and Exhaust back pressure on an OM606 - by 50harleyrider - 01-28-2020, 10:49 AM
RE: A discussion on EGT and Exhaust back pressure on an OM606 - by jav1 - 01-28-2020, 02:58 PM
RE: A discussion on EGT and Exhaust back pressure on an OM606 - by 50harleyrider - 01-28-2020, 07:37 PM
RE: A discussion on EGT and Exhaust back pressure on an OM606 - by zeeman - 01-30-2020, 03:05 AM
RE: A discussion on EGT and Exhaust back pressure on an OM606 - by Petar - 01-29-2020, 05:34 AM
RE: A discussion on EGT and Exhaust back pressure on an OM606 - by jav1 - 01-29-2020, 08:15 AM
RE: A discussion on EGT and Exhaust back pressure on an OM606 - by 50harleyrider - 01-29-2020, 05:35 PM
RE: A discussion on EGT and Exhaust back pressure on an OM606 - by 50harleyrider - 01-29-2020, 05:49 PM
RE: A discussion on EGT and Exhaust back pressure on an OM606 - by jav1 - 01-30-2020, 08:24 AM
RE: A discussion on EGT and Exhaust back pressure on an OM606 - by 50harleyrider - 01-30-2020, 11:20 AM
RE: A discussion on EGT and Exhaust back pressure on an OM606 - by Petar - 01-30-2020, 11:21 AM
RE: A discussion on EGT and Exhaust back pressure on an OM606 - by 50harleyrider - 01-30-2020, 11:22 AM
RE: A discussion on EGT and Exhaust back pressure on an OM606 - by jav1 - 01-30-2020, 11:43 AM
RE: A discussion on EGT and Exhaust back pressure on an OM606 - by 50harleyrider - 01-30-2020, 08:17 PM
RE: A discussion on EGT and Exhaust back pressure on an OM606 - by jav1 - 01-30-2020, 10:24 PM
RE: A discussion on EGT and Exhaust back pressure on an OM606 - by 50harleyrider - 01-31-2020, 10:37 AM
RE: A discussion on EGT and Exhaust back pressure on an OM606 - by zeeman - 01-31-2020, 11:19 AM
RE: A discussion on EGT and Exhaust back pressure on an OM606 - by jav1 - 01-31-2020, 01:06 PM
RE: A discussion on EGT and Exhaust back pressure on an OM606 - by 50harleyrider - 02-05-2020, 03:56 PM
RE: A discussion on EGT and Exhaust back pressure on an OM606 - by jav1 - 02-06-2020, 10:29 AM
RE: A discussion on EGT and Exhaust back pressure on an OM606 - by 50harleyrider - 02-06-2020, 11:38 AM
RE: A discussion on EGT and Exhaust back pressure on an OM606 - by Petar - 02-06-2020, 02:09 PM
RE: A discussion on EGT and Exhaust back pressure on an OM606 - by jav1 - 02-06-2020, 02:26 PM
RE: A discussion on EGT and Exhaust back pressure on an OM606 - by 50harleyrider - 02-06-2020, 05:01 PM
RE: A discussion on EGT and Exhaust back pressure on an OM606 - by Petar - 02-07-2020, 09:34 AM
RE: A discussion on EGT and Exhaust back pressure on an OM606 - by 50harleyrider - 02-07-2020, 11:34 AM
RE: A discussion on EGT and Exhaust back pressure on an OM606 - by jav1 - 02-07-2020, 02:54 PM
RE: A discussion on EGT and Exhaust back pressure on an OM606 - by TwoMuchBoost - 02-07-2020, 04:44 PM
RE: A discussion on EGT and Exhaust back pressure on an OM606 - by 50harleyrider - 02-07-2020, 05:20 PM
RE: A discussion on EGT and Exhaust back pressure on an OM606 - by 50harleyrider - 02-07-2020, 05:31 PM
RE: A discussion on EGT and Exhaust back pressure on an OM606 - by 50harleyrider - 02-14-2020, 02:07 PM
RE: A discussion on EGT and Exhaust back pressure on an OM606 - by zeeman - 02-14-2020, 02:57 PM
RE: A discussion on EGT and Exhaust back pressure on an OM606 - by jav1 - 02-14-2020, 02:59 PM
RE: A discussion on EGT and Exhaust back pressure on an OM606 - by 50harleyrider - 02-15-2020, 07:37 AM
RE: A discussion on EGT and Exhaust back pressure on an OM606 - by zeeman - 02-16-2020, 01:27 PM
RE: A discussion on EGT and Exhaust back pressure on an OM606 - by baldur - 02-15-2020, 12:02 PM
RE: A discussion on EGT and Exhaust back pressure on an OM606 - by 50harleyrider - 02-19-2020, 05:39 PM
RE: A discussion on EGT and Exhaust back pressure on an OM606 - by 50harleyrider - 07-18-2020, 07:03 PM
RE: A discussion on EGT and Exhaust back pressure on an OM606 - by jav1 - 07-20-2020, 10:42 AM
RE: A discussion on EGT and Exhaust back pressure on an OM606 - by 50harleyrider - 07-25-2020, 03:51 PM
RE: A discussion on EGT and Exhaust back pressure on an OM606 - by 50harleyrider - 09-09-2020, 07:26 PM
RE: A discussion on EGT and Exhaust back pressure on an OM606 - by jav1 - 09-16-2020, 08:05 AM
RE: A discussion on EGT and Exhaust back pressure on an OM606 - by 50harleyrider - 09-16-2020, 03:17 PM
RE: A discussion on EGT and Exhaust back pressure on an OM606 - by X Double Dot - 09-29-2020, 09:18 AM
RE: A discussion on EGT and Exhaust back pressure on an OM606 - by baldur - 09-29-2020, 11:31 AM
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