Heat and Turbo Lag Issues?

[taildraggerpilot]

This:

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[Sigtau125]

Been running the Mishimoto intercooler the last few months - and here in Hotlanta it's really been earning its keep the last month.

Truck still performs like it's 50 degrees outside even when it's 90 degrees and 80% humidity. Definitely should consider upgrading you intercooler if you're missing the performance in these dog days of summer.

Did you install the intercooler yourself? Mine didn’t come with any instructions.

 

[BassRanger]

Well put on the elevated IAT's causing the ECU to pull timing

However I disagree abotu the intercooler. I went with Mountune (local CA company, 40+ years in the business). Mishimoto was taking forever to develop their product and doesn't seem to be that great, if 7 degrees is all they got. 27 degree drop in temp over stock is what Mountune claims. What these guys would benefit from in the hot AZ heat is the "efficiency under heavy load" that an upgraded intercooler can provide, which the stock Intercooler can't. Before and after install I had been watching my IAT in various temps, towing, not towing, offroading etc. Major difference after upgraded intercooler install. As soon as it gets ariflow, IAT temps drop to near ambient temps

Heading to Anza Borrego this weekend, that will be a good test

I've logged Iats pulling a 5300lb car hauler in mid 90* temperatures and my charge temps never strayed above 10-15* over ambient unless I was stopped idling.

I was all set on upgrading intercooler even before I got the truck because I do most of my towing in the ball sweat heat of summer. I actually logged my temps and saw how small my temp delta was in boost and how quickly it recovers I decided to pass.

I've looked over mountune's data and I wish they'd posted their testing methodology because their data makes absolutely no sense.

Even still, the off idle heat soak it seems op is experiencing is going to be unavoidable in nearly 120 ambient temperatures, regardless of the intercooler.

 

[AZLightning]

When I was in Phoenix I always thought it had to do with the fan clutch being engaged 100% then disengaging when it got sufficient air flow thru the grill

 

[LoneRNGR]

I've noticed my throttle response dropping off, especially on take off. Truck is really sluggish from a dead stop. Then all of the sudden it isn't. It feels like a slow spooling turbo. Happens in normal drive mode and sport mode.

I can tell you that when the outside temperature is 100+ mine responds in much the way you are describing. I can't speak to the other concerns you have. I think that this is normal. Turbos work better with cool dense air. When the air is really hot, this is what you can expect of the performance. On the bright side, when you go to the mountains, your truck will out perform all the V8s you pass on the hills.

 

[C.moore01]

I wouldn’t worry, I’m sure Ford has tested very thoroughly at high ambient air temps .. the trucks computer is very smart, the lack of power in the unusually hot conditions is more than likely some type of thermal management to protect the engine to live a long life .. motor on and don’t sweat it

 

[Megawatt]

152F road temp on a 102F air temp day.

Everything you describe is a reason why I choose to get the extended warranty with all those computers and sensors under a hot hood with a turbo cooking away.

 

[Ranger X3]

Greg, mine's the same when we get these scorching hot temps. Last week I went out to the garage over an hour after I got home and the heat was still radiating from the front end. I don't think there's any issue or design flaw it's just we live on the face of the sun here and everything just bakes in it.

I've never heard any out here say they've had any problems with their plastic or rubber under the hood so I wouldn't think it's a big concern. I have customers who have some really nice classic cars that just store them in their garage so I'd think if there were and issues they'd see them.

During last weeks 116 temps dumb me forgot my sunshade. At least my front end was facing north but that didn't really do much. I just about burned my hand on the seatbelt buckle and then made then touched the shifter. Didn't make that same mistake twice.

As far as the turbo lag I noticed a lot more before I got my tune. It still lags some in this heat but nothing like before. I put my tune in mid August and never got the true feel for it until November when we finally had cooler air.

I hate that pause before the AC turns on, been 104ish in Sedona.

 

[AzScorpion]

I hate that pause before the AC turns on, been 104ish in Sedona.

Right, it's like you're sitting there waiting for the air to start blowing and nothing's coming out. Some might not understand but even sitting there for a few seconds seems like an eternity when it's this hot. If you remote start it that takes care of this problem. I know first world problems. lol

 

[RANGER_MARC]

Here lately we have gotten to the really fun part of an Arizona Summer. You know the part where it's 115°F in the shade. Air temps coming off the asphalt in full sun are significantly higher. I've seen 122°F on the dash while driving. It's so hot that the Auto Start/Stop Feature has stopped auto stopping.

Since the temps have gone up, I've noticed my throttle response dropping off, especially on take off. Truck is really sluggish from a dead stop. Then all of the sudden it isn't. It feels like a slow spooling turbo. Happens in normal drive mode and sport mode. Someone is going to suggest trying to accelerate without the AC on. F-YOU! See Previous paragraph about 122°F on the dash while moving. The interior plastics and seats get so hot that it does take a while to chill the interior. My assumption / expectation is that Ford has the AC management all sorted out by 2019 so that you can actually go when the light turns green.

Then this weekend, we did some cruising around at night. Casual driving. After sundown. Temps still in the 105°F range. Then I parked the truck on the driveway, went inside and did some stuff for 45ish minutes. Came out on the driveway to talk with a neighbor and leaned up against the front fender. Damn near burnt my back it was so hot - through the t-shirt!

The hood was mildly warm. The grille and bumper area mildly warm. The fender closer to the door was mildly warm. All about what you would expect from a recently driven vehicle. Nothing hot, just a little warmer than ambient temps.

But the fenders on both sides right above the wheel arch was blistering ass hot. This is after no sunshine, some air flow across it, casual driving, and sitting for 45 minutes to an hour.

I'm wondering if I have a heat issue or if the Ranger has a design flaw that makes it really bake and not dissipate the heat. How long can the paint last at those temps? How long can the rubber and plastic under the hood last? I'm thinking about adding some water wetter to the coolant. Looking at vents, louvers, something to get the hot air out of the engine bay.

Advice?

"It's so hot that the Auto Start/Stop Feature has stopped auto stopping."

Maybe we should add, "move to Arizona" to the list of ways to eliminate the A/S/S....

We are only running in the low 90s in Delaware this week (and calling it a "heat spell").

 

[slowmachine]

It’s interesting how we lose our tolerance for discomfort as we age. In my thirties, I worked in Yuma and owned a house in Wickenburg. My only vehicle was a 1977 Jeep CJ-7, with hard top and doors, and no AC. I made that 175 mile drive hundreds of times, aided by a giant insulated mug of iced tea, and a thin tee shirt for evaporative cooling. It’s 90F here in NH, and I’m pre-cooling the Ranger before my 15-mile drive to Home Depot.

 

[StezenW]

Did you install the intercooler yourself? Mine didn’t come with any instructions.

One of the rare installs I outsourced to my mechanic.

 

[wanted33]

Here lately we have gotten to the really fun part of an Arizona Summer. You know the part where it's 115°F in the shade. Air temps coming off the asphalt in full sun are significantly higher. I've seen 122°F on the dash while driving. It's so hot that the Auto Start/Stop Feature has stopped auto stopping.

Since the temps have gone up, I've noticed my throttle response dropping off, especially on take off. Truck is really sluggish from a dead stop. Then all of the sudden it isn't. It feels like a slow spooling turbo. Happens in normal drive mode and sport mode. Someone is going to suggest trying to accelerate without the AC on. F-YOU! See Previous paragraph about 122°F on the dash while moving. The interior plastics and seats get so hot that it does take a while to chill the interior. My assumption / expectation is that Ford has the AC management all sorted out by 2019 so that you can actually go when the light turns green.

Then this weekend, we did some cruising around at night. Casual driving. After sundown. Temps still in the 105°F range. Then I parked the truck on the driveway, went inside and did some stuff for 45ish minutes. Came out on the driveway to talk with a neighbor and leaned up against the front fender. Damn near burnt my back it was so hot - through the t-shirt!

The hood was mildly warm. The grille and bumper area mildly warm. The fender closer to the door was mildly warm. All about what you would expect from a recently driven vehicle. Nothing hot, just a little warmer than ambient temps.

But the fenders on both sides right above the wheel arch was blistering ass hot. This is after no sunshine, some air flow across it, casual driving, and sitting for 45 minutes to an hour.

I'm wondering if I have a heat issue or if the Ranger has a design flaw that makes it really bake and not dissipate the heat. How long can the paint last at those temps? How long can the rubber and plastic under the hood last? I'm thinking about adding some water wetter to the coolant. Looking at vents, louvers, something to get the hot air out of the engine bay.

Advice?

There's an old saying around here that goes, "it's not the heat, it's the humidity". Whoever made that crap up has never been in Arizona in the summertime. Been there, done that, and I'm here to tell ya that it certainly is the dang heat.

 

[wanted33]

It’s interesting how we lose our tolerance for discomfort as we age. In my thirties, I worked in Yuma and owned a house in Wickenburg. My only vehicle was a 1977 Jeep CJ-7, with hard top and doors, and no AC. I made that 175 mile drive hundreds of times, aided by a giant insulated mug of iced tea, and a thin tee shirt for evaporative cooling. It’s 90F here in NH, and I’m pre-cooling the Ranger before my 15-mile drive to Home Depot.

Amen brother.

 

[AzScorpion]

There's an old saying around here that goes, "it's not the heat, it's the humidity". Whoever made that crap up has never been in Arizona in the summertime. Been there, done that, and it certainly is the dang heat.

I'll take 116 with dry heat any day over 90 with 80% + humidity! One of my first trips out here it was 108 and when I landed back at Bradley in CT it was only 84 but really humid. I almost turned around right there and got back on another plane headed back here.

Both are tough to deal with but at least when it's dry you're not soaked just walking outside. You might feel like your skin is going to burn off your body though. ?

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