But on the other hand, who knows? My wind tunnel testing happened on the way to work this morning, and seemed to yield results. Early results, because it’s February and has warmed up to 0 degrees C outside but… I ascended a long grade at 117km/h (actual) in 5th gear (which in itself is miraculous), and EGT’s hovered around 510F (265C) , and engine temps stayed flat on 182F (83C), sitting on 12psi of boost. As soon as I crested, the EGT’s went back down to 450F (230C) or so. I’ve done this exact scenario before in colder temps and seen a bigger rise by the time I reached the top. So it appears that my cobbled together multi-year turbo/IC project is working as good or better than it has any right to.
(I do like my temps in Fahrenheit. Better range. LOL)
There is probably room for a low-pro fan underneath, but I haven’t seen any heat soak issues to warrant it yet. My temps are generally in range unless I’m at modern speed limits or pulling big grades. But more testing to come, when I head south this spring… The idea of course is to get as much thermal room as possible so that when my little trailer is behind me, or I’m fighting a headwind, I’m not sitting on the edge of disaster.
Heck yeah! That sounds like a clear winner to me, buddy!
How much bigger was the rise previously? 117kmh feels like a good speed for a 5th gear climb; like engine revs are doing some favors, but you’re still shoving something less aerodynamic than a Volvo uphill under boost.
Sounds like you’ve got some solid insurance!
For the record, you’re the reason I include metric in my own updates.
And honestly, before tubo, 117 uphill in 5th was an impossibility. Even now its probably not a great idea, but this is for “testing purposes”. As are most of my drives to work in this truck, since I can’t leave it alone if I think it could be “just a teensy bit better” and also its a controlled/known/harsh environ.
Once I’m trip bound I don’t adjust ANYTHING. Too much risk.
High 600s to low 500s? I’d say a 200-degree-ish improvement–even in freezing conditions–is an astounding improvement. I feel like I remember DSM/Evo guys talking about 1000-degree EGTs, so this feels like an incredible achieve me to me.
Testify.
It’s why I spent several hours over several evenings after dinner working the tcase switches to make sure my Super Select would let me use the locker BEFORE LEAVING HOME.
Did another commute Friday. Results were the same. Then yesterday I went into the heart of Calgary on highway 2 where speeds and sudden maneuvers come before temperature babysitting. All good!
This iteration of the intercooler mod is more dramatic (so far) than the original intercooler install! Again, it’s winter so I need to temper(ature) my expectations, but so far dramatically better.
The trip into the city was to support my buddy Wade in his new radio hobby, which he blames me for. He bought a mobile and some antennas. I may have gotten another antenna myself?
I know you did. Always good having the truck running better than before. Even if it’s only due to the weather! We’ll take it!
Glad to see Wade finally getting onboard the radio boat. Not that I’m some kind of expert, but I get the feeling we’re not gonna want to use email and chat much in the future.
I’ve had a little oil misting here and there since adding boost. And more noticeable with the intercooler so I thought I’d route the valve cover vent into a catch can and see if I can reduce it a little…
No fans. No heater either. I didn’t want the heater because it uses up power. It is thermally protected so if the temperature goes too low it won’t allow charging. That was good enough for me.
When I put it in the truck and checked the app, it showed 43 amp hours. Who knows how long it was sitting in the box after it was made? I drove to work and back which was maybe an hour and 40 minutes total? Maybe a little less? I’m now sitting on 99% and 103 amp hours. So it seems to charge up fairly quickly.
That makes sense. I just remember thinking it’s ironic that Teslas make more noise while parked than they do driving, because they’re running battery coolers (even when parked underground) in Phoenix.
More parts means more complexity means more headaches.
