- Jan 23, 2012
- 15
I posted this in another thread but thought I should post one here in its own thread with its own title... mods please forgive my forum newbism if I have broke some kind of rule...
copy / pasted from the other thread : --------------------------------------------------------------------------------------------------------------------------------------------------------------
I have a ScanGuage connected to my truck and have been monitoring TFT for the past 12 to 14 months. I have NOT installed my PCM4Less unit yet but will do it this spring. This is what I found in general:
+20 to +30c in general the trans temp will run approx 190f to 200f on the highway (and up to 210f - 215f sitting in bumper to bumper) with 2 people in the truck.
- in the same temps When towing my trailer with 3 bikes and 3 people and loaded with gear, it is about 200f-210f freeway and generally 220f'ish in bumper to bumper. On long grades in the mountains I have seen it hit a high of 225-230f, when it goes above 220f I usually slow it down. And I am climbing it in 3rd (not OD). I am usually doing whatever the speed limit is or +5mph over the limit. I don't bother thinking of the mileage.
in the +10 to +19c range the are in the 180fto 190f range with 2 people in the truck and 20f warmer in bumper to bumper
- when towing it is still in the 200-210f, doesn't seem to change
in the 0 to +9c range the temps are now at 150-160f with 2 people and I have NEVER seen it above 170f even in bumper to bumper
- when towing at this temp it is still in the 190-210f range
from approx -10 to 0 the trans temps are in the 150-160f range but it takes a really long time to get there (approx 15km of highway driving). bumper to bumper traffic no longer has affect on trans temp
- towing at this temp is in the neighborhood of 180-200f.
from -20 to -10c temps still make it to 150-160f but takes even longer. My commute used to be approx 120km for 1 way and it would take about half the drive before it got to those temps, so approx 60km.
- never towed at this temp
from -30c to -20c temps would make only 140-150f and would take my ENTIRE 120km commute to get there. It does get to about 100f VERY EASILY but from 100f up to 140f/150f it takes forever.
I never drove at -40c so cannot tell you what it would take.
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new stuff as of April Easter long weekend 2012 :
background data: I'm towing 3 bikes on a trailer. Guestmate is that the whole shebang weighs in about 2500-3000 lbs... with this combo of bikes for the weekend. I towed from Toronto, Canada all the way down Robbinsville, NC ... guestimate approx 2000 miles round trip for the weekend.
- 27c was the hottest it got down in NC / TN while down there this past Easter weekend. THE HOTTEST, the tranny every got was 194f ... this was on US129 at Deals Gap towing thru the DRAGON going approx 25-30mph and I locked it into 2nd gear.
- Once I cruised down the mountain on the other side it only took a few minutes to bring the temps down to 180f ...
- at the same 27c on the interstate going approx 65-70mph the trans temps were approx 175-179f.
- In Kentucky on I-75 where the speed limit is 70mph I was doing about 76 or 77mph where the ambient air temp was approx 17-20c I was almost constantly between 159f and 169f (up and down hills)
- going further north in Ohio / PA / NY where the ambient temps were approx 50f and my cruising approx 70-72mph I was constantly 149f to 163f
For day to day use I have found that my digits are now approx 20-30f BELOW what I had reported pre-cooler installed in all cases. We had a couple of cold days in March where the temps were in the -10c range and even tho I drove 65km to visit my GF, my trans temps never got above 125f.
Based on these numbers, I'd say a tranny cooler is MANDATORY for any amount of towing... the PCM cooler really does work even in that area by the lower front bumper. It dropped the overall trans temps to a VERY safe number...
copy / pasted from the other thread : --------------------------------------------------------------------------------------------------------------------------------------------------------------
I have a ScanGuage connected to my truck and have been monitoring TFT for the past 12 to 14 months. I have NOT installed my PCM4Less unit yet but will do it this spring. This is what I found in general:
+20 to +30c in general the trans temp will run approx 190f to 200f on the highway (and up to 210f - 215f sitting in bumper to bumper) with 2 people in the truck.
- in the same temps When towing my trailer with 3 bikes and 3 people and loaded with gear, it is about 200f-210f freeway and generally 220f'ish in bumper to bumper. On long grades in the mountains I have seen it hit a high of 225-230f, when it goes above 220f I usually slow it down. And I am climbing it in 3rd (not OD). I am usually doing whatever the speed limit is or +5mph over the limit. I don't bother thinking of the mileage.
in the +10 to +19c range the are in the 180fto 190f range with 2 people in the truck and 20f warmer in bumper to bumper
- when towing it is still in the 200-210f, doesn't seem to change
in the 0 to +9c range the temps are now at 150-160f with 2 people and I have NEVER seen it above 170f even in bumper to bumper
- when towing at this temp it is still in the 190-210f range
from approx -10 to 0 the trans temps are in the 150-160f range but it takes a really long time to get there (approx 15km of highway driving). bumper to bumper traffic no longer has affect on trans temp
- towing at this temp is in the neighborhood of 180-200f.
from -20 to -10c temps still make it to 150-160f but takes even longer. My commute used to be approx 120km for 1 way and it would take about half the drive before it got to those temps, so approx 60km.
- never towed at this temp
from -30c to -20c temps would make only 140-150f and would take my ENTIRE 120km commute to get there. It does get to about 100f VERY EASILY but from 100f up to 140f/150f it takes forever.
I never drove at -40c so cannot tell you what it would take.
-------------------------------------------------------------------------------------------------------------------------------------------------------------------
new stuff as of April Easter long weekend 2012 :
background data: I'm towing 3 bikes on a trailer. Guestmate is that the whole shebang weighs in about 2500-3000 lbs... with this combo of bikes for the weekend. I towed from Toronto, Canada all the way down Robbinsville, NC ... guestimate approx 2000 miles round trip for the weekend.
- 27c was the hottest it got down in NC / TN while down there this past Easter weekend. THE HOTTEST, the tranny every got was 194f ... this was on US129 at Deals Gap towing thru the DRAGON going approx 25-30mph and I locked it into 2nd gear.
- Once I cruised down the mountain on the other side it only took a few minutes to bring the temps down to 180f ...
- at the same 27c on the interstate going approx 65-70mph the trans temps were approx 175-179f.
- In Kentucky on I-75 where the speed limit is 70mph I was doing about 76 or 77mph where the ambient air temp was approx 17-20c I was almost constantly between 159f and 169f (up and down hills)
- going further north in Ohio / PA / NY where the ambient temps were approx 50f and my cruising approx 70-72mph I was constantly 149f to 163f
For day to day use I have found that my digits are now approx 20-30f BELOW what I had reported pre-cooler installed in all cases. We had a couple of cold days in March where the temps were in the -10c range and even tho I drove 65km to visit my GF, my trans temps never got above 125f.
Based on these numbers, I'd say a tranny cooler is MANDATORY for any amount of towing... the PCM cooler really does work even in that area by the lower front bumper. It dropped the overall trans temps to a VERY safe number...