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I did this for getting more air to the rad...not sure if it helps reduce ambient heat underhood,but coolant temps reduced by 4-5 F at highway speeds with my old C/B rad...
Rich
is that headed to your radiator or the air filter?, if its going to the radiator, do you think it could get to the air filter? how?
OOPs..sorry about late response...it mainly increases air flow to rad thru valance opening...(my 78 has stock dual air induction to carb via intake duct on top of rad connected to air cleaner...)
OOPs..sorry about late response...it mainly increases air flow to rad thru valance opening...(my 78 has stock dual air induction to carb via intake duct on top of rad connected to air cleaner...)
Check out lowes or home depot for some of your ideas .. The gutter area and insulation rows had all kinds of ducts and pre bent angles of tubes ...I was there buying Reflextics to line my interior and thought about this thread ......The roofing section also had some metal flashing and mesh intake screens to get the mind thinking
Last edited by White 68; Jan 12, 2007 at 04:16 AM.
This is pic of my stock 78 air cleaner/duct system...
Inlet duct...
69 cowl induction...from idle with hood closed,engine warmed up,underhood temps at carb were 150 F...after a 7 mile drive, underhood temps at carb reduced to 125 F...have not tested the 78 stock system,though..
Rich
Last edited by rihwoods; Jan 12, 2007 at 01:21 PM.
What are you talking about? My car is 100% stock!!
lol i WISH
Originally Posted by rihwoods
This is pic of my stock 78 air cleaner/duct system...
Inlet duct...
69 cowl induction...from idle with hood closed,engine warmed up,underhood temps at carb were 150 F...after a 7 mile drive, underhood temps at carb reduced to 125 F...have not tested the 78 stock system,though..
Rich
wow...this might b a stupid question but the cowl induction... i know it enters through the raise in the middle of the hood infron of the windshield, but does it exit through the circle in the center if the hood above the air cleaner? or is that just to make the option of installing an air scoop easier
wow...this might b a stupid question but the cowl induction... i know it enters through the raise in the middle of the hood infron of the windshield, but does it exit through the circle in the center if the hood above the air cleaner? or is that just to make the option of installing an air scoop easier
randommj
My 69 air cleaner is not connected to a hood duct...don't have that..so in my case,cooler air from cowl goes thru air cleaner element into carb...I tested this by taking Raytek readings at air cleaner(before/after driving) and using an oven thermometer in place underhood...but to me,the 25 F degree reduction at carb air cleaner element was signifcant..
I think the original L-88 cowl induction system "trapped" the cooler air within the sealed duct at carb/hood as it flowed from cowl opening at windshield...mine is "open"...
Rich
Last edited by rihwoods; Jan 12, 2007 at 02:19 PM.
i doubt it would hav any "Ram" qualities, but would it be bossible to some screening in the air vent behind the front wheels and plumb your way up to your air filter? it would be cold air, thats for sure, but its facing the wrong way to b "Ram" at all, unless it has some wierd air flow to the vents, if its been done post some pics, if it can be done, elaberate, i was just reading the thread and got to thinking
randommj
Taking air from behind a wheel or wheel well would be a dusty source.
Taking air from behind a wheel or wheel well would be a dusty source.
...not to mention the speed to get any benefit....that is why "Cowl induction" works better...Nascar still uses that principal of cowl induction.....ram air is a problem building up pressure under the hood..