VeeDubTDI
Wanderluster, Traveler, TDIClub Enthusiast
- Joined
- Jul 2, 2000
- Location
- Springfield, VA
- TDI
- ‘18 Tesla Model 3D+, ‘14 Cadillac ELR, ‘13 Fiat 500e
So it's winter time, and once again we have lots of back-and-forth about extended idling and what it does to your diesel engine.
A couple of guys in chat, including TDI mechanics, have asked me to post this thread to elaborate on ideas that I had earlier today in this thread... http://forums.tdiclub.com/showthread.php?p=2023286#post2023286
We would like to see the chip tuners write some code for the TDI that would elevate the idle to 1,200 rpms and cycle the VNT periodically during periods of extended idling, similar to what most large diesels have.
If you don't know already, extended periods (20 minutes or more) of normal idle speed cause several problems in a diesel engine, including leaky turbo seals (self explanatory), wetstacking (excessive carbon buildup), and washdown (diesel condensation on the cylinder walls and contaminating lube oil).
Explanations of these phenomena and why they happen are in the following links:
http://www.thedieselstop.com/archives/ubbthreads/GeneralDiesel1/showflat.php-Cat=&Number=1620200&page=17&view=collapsed&sb=5&o=&fpart=1.htm
http://en.wikipedia.org/wiki/Wet_stacking
So, my question to the chip tuners is this... how difficult would it be to implement such a feature into the computer's coding?
Some potential initiating factors that we dreamt up in chat are as follows:
We'd like to hear what you guys think. Thanks in advance.
A couple of guys in chat, including TDI mechanics, have asked me to post this thread to elaborate on ideas that I had earlier today in this thread... http://forums.tdiclub.com/showthread.php?p=2023286#post2023286
We would like to see the chip tuners write some code for the TDI that would elevate the idle to 1,200 rpms and cycle the VNT periodically during periods of extended idling, similar to what most large diesels have.
If you don't know already, extended periods (20 minutes or more) of normal idle speed cause several problems in a diesel engine, including leaky turbo seals (self explanatory), wetstacking (excessive carbon buildup), and washdown (diesel condensation on the cylinder walls and contaminating lube oil).
Explanations of these phenomena and why they happen are in the following links:
http://www.thedieselstop.com/archives/ubbthreads/GeneralDiesel1/showflat.php-Cat=&Number=1620200&page=17&view=collapsed&sb=5&o=&fpart=1.htm
http://en.wikipedia.org/wiki/Wet_stacking
So, my question to the chip tuners is this... how difficult would it be to implement such a feature into the computer's coding?
Some potential initiating factors that we dreamt up in chat are as follows:
- Automatic initiation after 10 minutes of idle
- Initiate fast idle by pressing Cruise Accel button/switch while stopped
We'd like to hear what you guys think. Thanks in advance.
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