Hood Louvers For Cooling - Page 2 - Diesel Place : Chevrolet and GMC Diesel Truck Forums
 
Home Forum Market Place Garage Lounge (0) Tuning Library DTC Tool Register Vendors
Go Back   Diesel Place : Chevrolet and GMC Diesel Truck Forums > GM Diesel Engines > 6.5L Diesel Engine
Register FAQ Forum Rules My Replies My Threads Mark Forums Read Auto EscrowAuto LoansInsurance

DieselPlace.com is the premier Duramax Diesel Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools
Old 01-16-2013, 10:59 PM   #11 (permalink)
Paveltolz
Diesel Specialist
 
Paveltolz's Avatar
 
Join Date: Apr 2007
Location: Saratoga Springs UT
Posts: 905
iTrader Score: 0 reviews

Quote:
Originally Posted by dixiepc View Post
Paveltolz,

Not meaning to get off on something else but where did you get that wench bumper and do you have some more pictures of it?
There's some pictures on this Diesel Place thread post 2835, about mid way down the page. Before and after. More insanity stuff I do on the next page...way off topic.

To keep on the OP's topic though.
The green truck here is 635's. His louvers are top mounted only, Large Size from Runcool too. They are in the back corners and these work like the side louvers do on my truck, air pushes out at speed.
Attached Thumbnails
Hood Louvers For Cooling-635-louver-closeup.jpg  
__________________
1996 Chevy K1500; 5th Owner.
Heath Stage III(ish) Performance Kit: Max-E Tork performance tune, Super-84 Turbo, HT4 Cam, PMD Isolation kit, 4" exhaust w/cross over kit, Superduty Water Pump & Fan upgrade, Studded main kit and Cold Air Intake Kit(2nd Edition). Plus ARP head studs & AirDogII DF-165, HO Bosch Injectors (2400psi) and Fluid Dampener. Lube Specialists Oil Cooler kit. PT Wiring Solutions' Zer0 Gauge Battery Cable and Glow Plug wiring kits. Walking J Feed the Beast & Rattle Stop kits.

2012 Jetta TDI (41mpg) & 2013 Passat TDI (43 mpg)

Last edited by Paveltolz; 01-16-2013 at 11:00 PM.
Offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 01-17-2013, 05:49 PM   #12 (permalink)
Stratosurfer
Diesel Technician
 
Stratosurfer's Avatar
 
Join Date: Sep 2007
Location: San Angelo Texas
Posts: 194
iTrader Score: 0 reviews

The Suburban Club Member

Thanks Paveltolz, I think those louvers would do very well for dropping coolant temps at low speeds, particularly towing in city traffic in 100F days. I see point that an air dam would be better at freeway speeds. I think I will do the Heath recalibrated fan clutch and 192F Robertshaw stats, then reclean the radiator stack with bug juice (I've used Adolph's meat tenderizer to melt bugs off the leading edge of an airplane wing), and see how I come out before I do any louvers. Thanks to all.
__________________
Mark Magee
98 Burb 2500 LT 4x4 VIN G, 4:10's 190K miles, Amsoil Bypass/full flow filters, Turbo Master, Heath ECU Reflash Towing Tune, Heath P-38 turbo, Duraterm GP's, New Injectors, Walbro FRC-13 LP, 480LE Rebuilt 2X, Vacuum Pump Delete, Fluid Damper, DTech remote bumper mount PMD, Straight through 4" exhaust, Heath HD Cooling Upgrade, Rotella ELC, new Delphi radiator, Wrapped 2.5" Crossover, Heath Cold Air box & Filter, Fumoto Drain, Alcoa Centerline Wheels, Rear Disc Brakes, Ride Rite Airbags, Walking J Dash clamps, Michelin 235-85R-16 Rib, Heated Powered Towing Mirrors.
San Angelo TX
"You don't have a soul. You -are- a soul. You have a body." C.S. Lewis
Offline   Reply With Quote Quick reply to this message
Old 04-14-2013, 12:34 PM   #13 (permalink)
pa32rt
Diesel Master
 
pa32rt's Avatar
 
Join Date: Sep 2007
Location: Bakersfield, CA
Posts: 3,606
iTrader Score: 0 reviews

Quote:
Originally Posted by Stratosurfer View Post
Thanks Paveltolz, I think those louvers would do very well for dropping coolant temps at low speeds, particularly towing in city traffic in 100F days. I see point that an air dam would be better at freeway speeds. I think I will do the Heath recalibrated fan clutch and 192F Robertshaw stats, then reclean the radiator stack with bug juice (I've used Adolph's meat tenderizer to melt bugs off the leading edge of an airplane wing), and see how I come out before I do any louvers. Thanks to all.
Working out city traffic heating problems is something I work out ALOT. Usually not diesel stuff, but air flow is air flow. When someone brings me a problem of heating - I just work through the basics:

A) Has the vehicle ALWAYS done this (since new)? If so, it's either a factory part that is not doing it's job or -

B) The vehicle is one that was KNOWN to overheat when new.

Anytime someone is on the side of the road with steam rolling out, it cracks me up: "Oh, it just overheated...I just need to let it cool down and it will be fine". Really? Did it overheat when it was brand new? I don't think so. So, something has stopped fully doing it's job.

Now, on my bone-stock, FULLY RESTORED '55 Chevy, it overheats if idling in traffic on 100* day. These cars had NO fan shroud and a TINY four-blade fan. No overflow jug.

That being said, let's look at the '55 Chevy. At ANY speed other than stopped, it stays right at thermostat temp. So, what did we change? Airflow. This obviously shows the rad is doing it's job, but the fan is not pulling enough air THROUGH the radiator.

So now, on all of my classics and musclecars - I do an Aluminum rad with single or dual electric fans (depending on size). I use controllers that bring the fans in at 50%, but go to 100% if there is an additional 10* rise in water temp. Also, of course, they come on 100% with AC compressor.

Therefore, I can idle ALL DAY LONG in 100+ heat, with AC, and never see the temp go over therm temp. I have always been a clutch-fan guy. One-tons have always been this setup and really have never failed me in any situation. My LMM factory fan pulls more than any dual electric setup, and the truck does great in idle/AC situations as is.

In your situation, where you are seeing rising temps at idle in traffic, I see you have two options......

1) get EVERY piece of your cooling system back to brand-new condition. Rad (I would definitely upgrade to AL if not AL from factory), new therm, new fan clutch. IF your rig idled all day without overheating when it was new, you should now be back to that state.

2) swap the fan/clutch for a set of dual electrics with a built-in shroud. Ron Davis Radiators makes all of mine and they come turn-key. These guys mainly build rads for Trophy Trucks and Baja stuff. They know what they're doing.
__________________
2008 C3500 2WD DRW LMM. LT2 with everything. BANKS RamAir intake, MBRP turbo-back, Rotella T6 (5w-40), Quadzilla Stealth-2, DJM 7.5"/9" drop, Rancho RS9000s. AirLift 25415 auto-leveling bags/compressor. Weld 17X6.5 Velociti-8s, 245/70-17 Coopers.
Offline   Reply With Quote Quick reply to this message
Old 04-16-2013, 08:20 AM   #14 (permalink)
bigblazer
Diesel Technician
 
bigblazer's Avatar
 
Join Date: Jan 2012
Location: mcallen tx
Posts: 411
iTrader Score: 0 reviews

I have a cowl hood . I think its the reason everybody says you can't run elect fans and I can. Actually without a/c on I hardly ever use the fan(s) . I've said it before , but the water cooling system only takes care of about 60% . The rest is exhaust and heat dissipation from the block.
__________________
94 Chevy blazer. 929 block, hd 4l80e, pmd relocated in bumper, #9 resister, ssd "80" hp chip, gm8 with DIY boost controller now 18psi, 3 down tube 4" straight pipe 5" tip, k&n cone, optic bump, kennedy injectors, boost/egt/trans/oil pres/water temp gauges, 3 core aluminum radiator w/dual fans, 98 "h.o" w/p with restricters installed, cowl hood. 4.10s in 14b semi floater, 35 firestone m/ts 8" rough country lift 3" body lift. Dos cientos quatro whp As of 2/21/13 thats all she's gonna put out!
Offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Diesel Place : Chevrolet and GMC Diesel Truck Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

PLEASE READ! You must check your email inbox for the confirmation link to complete registration. Please check your spam box if you do not see the email in your inbox.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Hood Louvers? DAB1 Exterior 24 07-20-2009 12:32 AM
Hood louvers opfor2 Exterior 7 07-07-2009 08:10 AM
Removing Hood Louvers DAB1 3500 Dually Trucks 2 05-01-2008 11:19 PM
S/S Hood Louvers Franko914 6.5L Diesel Engine 2 03-29-2008 12:45 PM
Chrome Hood Louvers. jwoltz Exterior 2 06-27-2007 11:38 PM


All times are GMT -4. The time now is 05:14 PM.


Shoutbox provided by vBShout v6.2.1 (Lite) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd. Runs best on HiVelocity Hosting.
© AutoGuide

SEO by vBSEO 3.6.0