6.4L Power Stroke Engine and DrivetrainDiscussion of the 6.4L Power Stroke diesel engine and drivetrain in the 2008 Super-Duty trucks. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 6.4L Power Stroke engine.
put about a 1000 miles on over last 2 weeks pulling 17000# 5th wheel. Total weight 27000#.
I have one screen on my EDGE Insight that includes inlet air temp.
On a 72F day at 65mph, the inlet air temp to the engine is about 100F. I assum this is because of all the heat under the hood but it certainly makes a great case for some modification for better cold air to the inlet.
Sometimes you have to wonder who at Ford is working on these things.
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2008 F450 CC Lariat White/Gold, JAD Solutions Lights, 62 Gal Titan, B&W Hitch, Ford Gold Remote Start, TruckTrunk box, Viair 550+2x2.5gal receiver
On a 72F day at 65mph, the inlet air temp to the engine is about 100F. I assum this is because of all the heat under the hood but it certainly makes a great case for some modification for better cold air to the inlet.
Sometimes you have to wonder who at Ford is working on these things.
I don't know how Ford could fix any of that stuff as I'm not that kind of engineer, but out of curiosity, do you have a fix for what you've just described (assuming that it IS a problem that might prevent you from using your truck in its fullest capacity)?
I'm skeptical that what you've just described warrants any kind of modification. If Ford thought it was necessary, they would've engineered it in by now; we're already up to Job 3 (is there a Job 4 coming?)
One of the guys on another forum with a different brand did some testing and found out his best economy was when inlet temps were right near 100*f. Just FYI..
Timid, car companies don't always fix problems or tweek things because it has a negative effect on short term bottom lines. Sad but true.
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2006 Dodge CTD 2500 SLT 4X4 Quad Cab Long Bed 6 Speed.
Traded:2004 F250CC FX4 XLT Long Bed Torque Shift, $5.00 AIC.
The colder the better, but you need to guard against water, snow, and foreign object ingestion.
We already know that Ford flunked the snow test.
Sawn
__________________ 2008 F-450, 4 X 4 with 4.30's, auto with manual transfer case with factory cup holders. All options except sunroof and nav. Line X with Extra. 24K Draw-Tite Signature Series Fifth Wheel Hitch. 65 Gallon KSH Marine fuel/tool combo in bed. Viar 480C compressor with 8 gallon tank. Hadley Air Horns hooked up to Auto Mate alarm. PICTURES
Well, I can monitor thr IAT and IAT2, and the IAT2 is at a higher temp than the IAT, so what is the cooler doing? Not much.
Just remember that if the boost is 30 psi, the temperature of the now compressed air will rise 3X, so 70º intake air will be about 210º entering the intercooler. So if the temp is back to 75º before going into the cylinder the intercooler has been very effective.
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2002 F350 Lariat CC 4x4 Auto 4.10 DRW, DP-Tuner F5 live tuned stock, quiet, 40dd, 40, 60, 80 tow, 80e and 120r, B&W GN, BrakeSmart, 'pooned tank, tank and pre-pump mods, 2µ Dahl 100 filter, regulated return, BTS dual HPOP, AC singles with EDM 34 lpm nozzles, AIS, H2e, Spearco 6.0 IC, Hypermax 3.5" dp--> MBRP 4" 304SS exhaust, BTS tranny, 203º T-stat, Chevron ELC, coolant filter, Oilguard bypass with Schaeffer 9000, WranglerNW 200 amp alternator & Optima group 31 batteries, Nippon-Denso starter, SPA gauges, SteveRacer mods, Hella 80/100W 9007s, Hella Micro DE foglights, 1000FF driving lights, 220W backup lights, Stancor contactor, Michelin XPS Traction tires, X-Springs, Bilstein shox, custom bumpers but otherwise stock. Nov 30 '99 build engine with 16 K miles, Fluidampr, Comp Cam 910 springs, Melling LPOP and ARP headstuds. Alien-Patrol Customer Service Sucks!
Well, I can monitor thr IAT and IAT2, and the IAT2 is at a higher temp than the IAT, so what is the cooler doing? Not much.
The reason IAT2 is higher is not because of the CAC a poor job at cooling, it is because the IAT2 sensor is mounted after the hot EGR gasses are mixed in. The only way to use IAT2 and get an accurate representation of how well the CAC is doing would be to monitor IAT2 during a regen (since the EGR system is disabled at that time), but even then, the temperature will be somewhat skewed since the turbos seem to act differently than normal. Mine seems to make less boost during regen, so IAT2 would appear cooler since the air is less pressurized.
(Re-posting the pic to make the text more readable. I should have marked the picture, but look for IAT2 located in the right intake manifold near the MAP sensor.)
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2008 F-450, 4 X 4 with 4.30's, auto with manual transfer case with factory cup holders. All options except sunroof and nav. Line X with Extra. 24K Draw-Tite Signature Series Fifth Wheel Hitch. 65 Gallon KSH Marine fuel/tool combo in bed. Viar 480C compressor with 8 gallon tank. Hadley Air Horns hooked up to Auto Mate alarm.
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