[killerbee]

Rear facing extractor vents may be a very good idea for improving -P under the hood.

These do work. When located on the forward portion of the hood, they can extract a substantial amount of motor bay air, at speed. The faster you go, the more air removed. Venturi design is the principle behind it. As well, the static pressure on the front hood is very low. The pressure under the hood is very high (especially with fan running). Air goes from "high" to "low"

You just have to be sure that this air is not coming into the bay area via an alternate route, like the crack between hood and grill.

I have some small carbon fiber vents for someone to try. Getting you to cut the hood, that's another challenge.:bling:

 

[D Lafleur]

IIRC neither had any positive effect on ECT's. Glad to see you over here Darin. JJ

You found us, well some of us.
My tow hook holes seem to be surrounded with some shrouding material these days also. :thanks:


By the way, check out what Fingers is up to. He hasnt given up, I am afraid he may answer the original question.

I have been looking at the aftermarket hoods and there isnt one that I have seen that would help. The vents are either at the windshield, or they facing the wrong way.

Now if we were to build a CAC that sat horizontal ala Subaru and install a hood with a forward facing vent, we may have another solution. This would allow us to remove the CAC from the stack, I am sure the rad would appreciate the fresh air. We would still have to address evacuation of the air from below the engine. Being different is nice, however there are solutions out there that are less obtrussive and more economical.

For Heat rejection:
The most cost effective helper item are still air mods and a real CAI of any flavor IMO. The real solutions incorporate the air mods.

For the lurkers that feel no one here is happy with there vehicle. I have to wipe the grin off my face when I can outpace 98% of the vehicles on the street in a 8000lb. truck. :usflag

 

[chloeourdog]

Hi All,

You may know me as Chloeourdog elsewhere ....

Just turned over 2000 miles total on my TD-EOC .... I just finished a 1600 mile trip from Maryland to Wellesley Island, New York, then to Maxville, Ontario, then to the Adirondaks (Lake Placid, NY) then home to Maryland.

A great 3 weeks of camping for the family.
I towed my Forest River Wildcat 5th wheel (32' long) weighing in at about 12K lbs fully loaded.

I'll post complete results soon ... still unpacking the camper ....

From today:
I never heard the fan, never went above 188 on the Tranny gauge, never went above 203 on the OEM ECT gauge. I do have a small concern that I may be overcooling my engine (seriously) because I can see the OEM gauge go from 203 back to ~185 during downgrades after climbs ..... I am not sure I should see stats opening and closing after towing 9 hours (I87 through mountains and I81 through the PA mountains ....) - granted the temps today were only 80-85 degrees ....

-Mark

 

[stevebos]

Welcome home, Mark! Good to see you here!

 

[killerbee]

Hi Mark. Glad you had a safe trip. When you get settled, maybe you can start a new thread. I am particularly wanting to pick your brain, especially with your total lack of parasitic fan activity. This is what I was after, and took 2 years to finally materialize. Many, like you, are reporting the same benefit, and the resultant fuel economy bonus.

 

[idahofox]

Welcome home Mark !

 

[TheBac]

Put your findings in this thread too: http://www.thedieselgarage.com/forums/showthread.php?t=20743


Its good to see you didn't have any problems.

 

[JJs CAT]

Mark, so glad to hear you had a great, safe trip. We need more intel on folks running with the TD-EOC. Would you be kind enough to start a thread for those running this mod to post their results. JJ :thanks:

 

[killerbee]

...
By the way, on this trip I climbed the second highest mountain peak east of the rockies .... no fan either (had some 10+% grades - )

Looking forward to the report.

 

[TheBac]

Thread re-opened due to multiple requests. Thanks guys. Lets keep it clean from here on out.



OK, I did some checking and found out that the guys were right about the LBZ radiator and water pump. They are different part numbers than the LB7/LLY ones. A junkyard near work has an LBZ radiator for sale, I just have to find the time to get over there and measure it.

I also found out that the LB7-LLY-LBZ thermostats are all the same.

 

[Puffer]

Has anyone noticed that the oil service light comes on with higher miles recorded on the odometer with the engine oil cooler installed ?

 

[idahofox]

Good question Puffer, DMAXITOL may be to only one with enough miles to know, how about it DMAXITOL.

 

[stevebos]

Has anyone noticed that the oil service light comes on with higher miles recorded on the odometer with the engine oil cooler installed ?

Does the ECM control the oil service light? If so, what parameters does the ECM monitor for the oil service light (ie: mileage, engine hours, throttle position, etc.) If ECT, it might!

Diesel Tech?

 

[Diesel Tech]

Yes, the ECM controls the light. It use several things to determine when to turn on the light. Amount of fuel used , miles traveled, ECT over those miles traveled, acceleration rate and airflow to name a few. The under lyeing thing is miles traveled. If after 7500 miles the oil light is not trigered by the conditions it will be turned on.

 

[Puffer]

Diesel Thec:
So your saying that irregardless of the oil condition the light will be triggered at 7,500 miles ?

 

[Diesel Tech]

Diesel Thec:
So your saying that irregardless of the oil condition the light will be triggered at 7,500 miles ?

Yes, that is the upper mileage limit imposed in the software. I need to add that some of the early calibrations were set for 5000 mile limit.

 

[Puffer]

Diesel Tech
Good to know and thanks for that.

 

[D Lafleur]

Yes, that is the upper mileage limit imposed in the software. I need to add that some of the early calibrations were set for 5000 mile limit.

I let mine run once and it got to 9218 miles before the DIC showed 0%. This is an 05 GMC.

 

[DMAXITOL]

Good question Puffer, DMAXITOL may be to only one with enough miles to know, how about it DMAXITOL.

45K on the EOC now! Not even a O/H warning yet! The change oil indicator has always been fairly consistent, about 10200 +/- 50 before the EOC, after 10400 +/- 25 ! Looking back over my records there was one instance of 9500 mi on a indicated change, it was after my 1st overheat and shoulder visit with this truck, which included the tranny going into "safe mode" over "parlays summit," (SLC UT) 3 weeks after I purchased the truck. This was with a 26' TT. What a shock!:damnit

 

[mother_goose]

Can someone give me links for both the RAD kit and the TD-EOC?

Just curious as to prices, kit components, etc.....

I will settle for PMs if the sites are not allowed to be posted. I would just like to see/understand the the kits and then decide which I would prefer to try. Would also like to speak with the makers!