S369 towing
- Thread starter Mpsoldier
- Start date
X3
If you're towing that much I wouldn't even look at an S300. Compound twins all the way...
Yellowchevy
oil temp goes up as you increase HP on a single and try to tow too. every watched a stock dmax and the oil temps it hits with just a hot tow tune pulling the hills? its not good.... dont just think a second turbo is the one making all the extra heat, more to it than that. it does contribute, just not to the extent most like to think
Oil gets easy 80% of its heat from piston cooling.
VGT turbos put more heat into the oil than standard turbos say a 10° drop in oil temps after removing the VGT which the vanes are controlled by oil pressure
So cooler egts will in theory drop oil temp even if making a little more power.... makes sense but my lml with 475 over stock loses some serious oil pressure when I start towing much and my Temps stay under 1100 all the time pretty much. Will drop to 36 lbs at 1800 loaded versus 44 lbs at 1800 unloaded
Yes and no.. vs EGTs to oil temps
Honestly 1800° egt towing is pretty darn hot!
EGTs changes faster than ECT/EOT
Honestly 1800° egt towing is pretty darn hot!
EGTs changes faster than ECT/EOT
Ive been towing with a 369 for a little bit, but rarely tow more then 15k with it. i have the same issues with my lml, but with the tap shifter i can stay on top of the charger. i feel like i should have gone with a 46-something for longevity reasons but so far after 50k i haven't had any issues with it. :thumb:
Thanks guys.
I know compounds are hands down the best option for towing but after installing 60% injectors and dual fuellers my buddy that tunes my truck informed me that compounds with be a kiss of death to my bottom end.
I know compounds are hands down the best option for towing but after installing 60% injectors and dual fuellers my buddy that tunes my truck informed me that compounds with be a kiss of death to my bottom end.
60% overs and dual fuelers are a kiss of death in them self with that turbo setup. running a twin vs what you have now wouldnt matter. It still comes down to quality tuning
Agreed ^^^
We have it tunes pretty conservatively right now but it's still smokey for my taste especially with a trailer.
We have it tunes pretty conservatively right now but it's still smokey for my taste especially with a trailer.
that turbo is too large to follow the stock TCM shift tables, a locked converter and stay clean without pulling back fuel so far you go no where. it needs RPM. If you stay at or above 1800rpm, it will like you much more. 1800 rpm is like the stock turbo at 1500rpm. it will work and still pull but EGTs will be high and you will be under the turbo map.
My truck is down needs the trans refreshes up. 7 years commercial plowing and 240k on the built one that’s in it. Can’t complain truck takes all the abuse. The turbo is still tight has about 65k miles km it now. Still tuning sportsman pump and sacs65% injectors with about 80k.