8hp70 deleting just thermostat

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crazykid1994

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3 quarts guys. Took 3 quarts… new transmission lines with -8 a male ends and an in line 145° thermostat and I’m all back together. Well just shy of 3 quarts but non the less. Will report back after a couple drives but idling in my driveway it definitely warms up faster. during my fluid check went from 76° to 86° for my check then after checking made it to 92° and sitting am now at 100°. This is all in under 10 minutes.
 

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Ram1683

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My 8 speed is totally deleted,and honestly i've never noticed much differance in it's shifting patterns between 100F and 185F (where it used to run at before deleting),but the transmission is also tuned,so i don't know if that is why i've never noticed any differance. My wifes 1320 with no heater will take upwards of 60 miles on a 30F day before it gets above 150F,and it doesn't really exhibit any shift differances between 100F and 180F.I usually try to keep things reasonable until both transmissions get to around 100F,but after that it's game on,lol
I hair over 100⁰ Is perfect in my head with but some of these guys say 190-200+ on a normal day. That seems like meltdown to me. I know the engineers aren't stupid but they've also got the **** epa that doesn't care about longevity breathing down their backs.
 

Wild one

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3 quarts guys. Took 3 quarts… new transmission lines with -8 a male ends and an in line 145° thermostat and I’m all back together. Well just shy of 3 quarts but non the less. Will report back after a couple drives but idling in my driveway it definitely warms up faster. during my fluid check went from 76° to 86° for my check then after checking made it to 92° and sitting am now at 100°. This is all in under 10 minutes.
Damn it looks good Khris.What's your outdoor temp this morning,as it warmed up pretty quick.I'm looking forward to your thoughts after you get a few miles on it.Where did you get the clamps holding the hoses together?
 

crazykid1994

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Damn it looks good Khris.What's your outdoor temp this morning,as it warmed up pretty quick.I'm looking forward to your thoughts after you get a few miles on it.Where did you get the clamps holding the hoses together?
Improved racing sells them. I like them. Kept it very neat looking. This was after a 10 minute drive to the local grocery store. It seems to creep up slightly to 160° when I’m in stop and go. I need to flip my lines at the thermostat as I have the radiator flowing backwards. Oops. No biggie. Currently flowing top to bottom. I think stock was bottom to top.
 

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crazykid1994

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Damn it looks good Khris.What's your outdoor temp this morning,as it warmed up pretty quick.I'm looking forward to your thoughts after you get a few miles on it.Where did you get the clamps holding the hoses together?
12 minute drive. This is great
 

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crazykid1994

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Those temps look good. Time to beat on it a bit to see if it'll maintain temp. Damn you must be running around with a winter jacket on,lol
That’s coming next time I make it to my in-laws or down the interstate to see what the true sustained temp will be. It still takes a bit to get up to the 154° that it seems to like but I’m ok with this over the 186° it was before.
 

Wild one

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So I have one of Caulk’s bypasses in my possession now…what temps can I expect?
To many variables to really pin that one down Craig,but if i was to take a guess probably somewhere between 130 and 150 after it's up to temps.That depends alot on conditions like how hard you like to drive it,if you drive it more along the lines of you stole it,probably in the 140/150 range,but if you drive it like Grandma probably in the 130/140 range
 

Wild one

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What Rick is implying is I drive like a grandma. And he is not wrong… I average 132°
Grandpa Khris,lol.Don't worry i'm not much differant,around town i drive like grandma,but on the freeway i run about 85/90 mph. My local track is 155 miles away,and i don't dawdle on the drive there,lol
 

MRFREEZE57

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So I have one of Caulk’s bypasses in my possession now…what temps can I expect?

I see anywhere from 125 in colder days to a high of 165 on warm days, also depending on traffic conditions, on freeway it runs a bit lower, in stop and go traffic it creeps up.
On cold days it takes longer to hit 100 deg.
 

crazykid1994

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Grandpa Khris,lol.Don't worry i'm not much differant,around town i drive like grandma,but on the freeway i run about 85/90 mph. My local track is 155 miles away,and i don't dawdle on the drive there,lol
So the thermostats operation temps are
140° break open temp
163° full open temp

So today driving I thrashed the truck a little. I could get the truck to 163° oil temp but it would peak there. Granted it was busy so I couldn’t really beat on it. But it would cool back down to 158° fairly quickly once I went back to cruising speed. Would then slowly drop to 154-156° and sustain that temp. And on a side note my truck would downshift better. I’ve had issues with the trans downshifting but only 1 or 2 gears and would limit gear shift to between 5400-5600rpm. I’ve been thinking that was due to the cold and based on the tuning done. Today basically on command it would drop gear and rev into the upper 4000rpm range and carry to 6000-6200rpm shift. Long term will tell if it was worth it. Shifting still feels tight which is great.
 
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crash68

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Nothing like chasing a refrigerant leak only to find dye in the trans XD
There's no way anything from the refrigerant part of the fin coil to crossover to the transmission part. You can't even cross connect the tubing/piping between the two, as the connections are different.
 

Gmantwo

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Anyone running the bypass have issues during the December Arctic freeze? If it’s -5 degrees does that mean your trans temps are 60 degrees? In Southeast Missouri my not towing temps are above 180 regularly and over 200 towing. 2019 Ram
 

Wild one

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Anyone running the bypass have issues during the December Arctic freeze? If it’s -5 degrees does that mean your trans temps are 60 degrees? In Southeast Missouri my not towing temps are above 180 regularly and over 200 towing. 2019 Ram
Jesse's/Caulks bypass isn't a permanent mod,you can always swap the stock thermostat back in for the winter,if you're transmission is running to cold.It's like swapping engine thermostats,way to many guys seem to think these are permanent mods,when you can swap the stock stuff back in for the colder temps.
 

crazykid1994

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I’m in Florida and I didn’t care much for how the transmission shifted when it was under 120° which isn’t often here but also wanted faster warmups after deleting so installed an in line thermostat instead. Runs just under 160° currently. Will see how it plays out during the summer.
 

MRFREEZE57

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I’m in Florida and I didn’t care much for how the transmission shifted when it was under 120° which isn’t often here but also wanted faster warmups after deleting so installed an in line thermostat instead. Runs just under 160° currently. Will see how it plays out during the summer.
What type of inline T Stat did you use? Western Wa does not get severe winters but would like a faster warm up time but the stock stat did not open until about 180deg.
 
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