sts turbo high egt help help help
#1
sts turbo high egt help help help
I have a 2011 silverado 5.3 flex fuel with an sts turbo. I tow with it set to 5 psi regular driving at 10psi. When towing im at constant 1500 to 1600 egt temp. My system is intercooled. Does anyone have any tips for lowering my egt's. maybe a restricted exhaust. Fuel ratio? Anything? I might end up having to go with meth injection but I really don't want it to cone to that. Thanks for any tips.
#3
TECH Regular
iTrader: (7)
Well your intercooler will not have an affect on EGTs but your air/fuel could. Do you have a wideband? If your tune is rich then any unburnt fuel (from the combustion chamber) is getting burnt inside the hot exhaust pipes raising your EGTs. I'm not sure but I would say your numbers are pretty normal though. If I'm just hot rodding my truck or driving 70-75 down the highway I see 1200 on my gauge (my EGT probe is about 12" behind the turbo in the DP).
#4
12 Second Truck Club
iTrader: (4)
I agree what's the Afr and timing? My probe is about 3" from the exhaust port and I don't see those kinds of number. When first started all this I did but my timing was way low and my Afr was real rich. Part throttle low low boost doesn't need 11:1 Afr I run about 13:1 in that area and it richens up as boost goes up.
#7
TECH Senior Member
iTrader: (26)
More timing in lower boost area will lower you EGT's as long as you don't get excessive with it. Also, how much are you towing? What's the WHOLE setup? The truck is Flex fuel, how are you tuned? Can you run E85 while towing? That with more timing will lower EGT's also.
Trending Topics
#8
More timing in lower boost area will lower you EGT's as long as you don't get excessive with it. Also, how much are you towing? What's the WHOLE setup? The truck is Flex fuel, how are you tuned? Can you run E85 while towing? That with more timing will lower EGT's also.
Thread
Thread Starter
Forum
Replies
Last Post
GXPJAY
Trucks and SUV Classifieds
5
02-13-2022 08:15 AM
ZO6Ted
GMT K2xx Trucks General Discussion
9
08-12-2015 07:50 PM