bobndot wrote:
I redirected the airflow with pvc . On long hills during the summer, my truck climbed up 15-20 degrees prior to the mod. Ill know better by Thursday how it worked , i'll report back.
You have to keep making mods of some sort and they need to be field tested . My DW is becoming suspicious :h as to why i have to bring fishing equipment to try out and test all these mods. I told her they are sensitivity rods to measure air flow .
Im back . As i said , im reporting back with my pvc tube findings.
On shorter hills it helped (1 mile or so ) the trans. and water temps didn't climb as they prior to installing the tubes. ( thats good)
On longer 5 mile hills, it was a lesser effect and didn't make much of an impact. The water temps went from 190 to 225. The trans. didn't climb as much, from 190 to 200 . Overall , the tubes seemed to lower the trans. temp more than the water temp. That was important.
Therefore they helped most of the time because the mountain grades are not so bad in N.Y. and the runs are of the one mile version. But, in the higher western mountains, i don't think they have much effect on those longer runs.
All flat level driving , the temps were normal as they always were.
I have a 6.0 gasser with 4.10 gears and maintained aprox. 60-62 mph climbing the long 5 mile hills. The tranny held 3 rd gear the whole way up at 3000 rpm . The outside temp was 85 F .
I was happy with the results, but i think i need to redirect more air . Adding more air flow directed at the radiator, seems to help to reduce heat.
More tubes on each side and somekind of angled deflector on the lid.
All in all, i dont think my truck is in any kind of danger running those temps. At this point its just a game and another excuse for a fishing trip with my tc .
BTW, i received a lot of compliments from plumbers . 🙂
We took a chance and moved the spare to the front a few weeks ago knowing that it would probably have some effect on the cooling. We headed up to a mountain lake for the weekend. Uphill grades, rough roads and little speed for airflow. I could tell no difference on the highway portion, maybe a little on the rougher slower steep uphill section. Need to get my scan gauge back on to really see. Seems ok though and the coach definetly handles differently moving the tire to the front. We used the tow bracket receivers for the spare tire mount. Looks good with the hub cap.
