Healey Sports Cars

mods & upgrades for Healey (Nash, Austin, or Jensen) cars, including engine swaps

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florianscholz
chris scholz
Iowa
(24 posts)

Registered:
12/05/2014 08:06AM

Main British Car:
1959 BN4 100-6 5.7 V8 LS1 from corvette/camaro and 4L60E

functional hood vent Healey 100-6
Posted by: florianscholz
Date: January 23, 2015 07:46AM

Has anyone tried to make the hood vent functional on their Healey 100-6 or 3000? My LS V8 sway has the air intake in front of the engine and I could fabricate a working vent and make a cold air intake directly into the LS motor. I would probably have to order my radiator with the cap to the side so it is out of the way.

I am wondering if that opening in the hood would be large enough for the required amount of air for this application. I could also route the cold air intake sideways and draw from the fender, and keep the functional hood vent to keep air passing through the engine bay.

I know heat is an issue and I am not cutting any vents into the top of the hood or the side fenders, so maybe making the hood vent functional is a good idea.

Chris.


rficalora
Rob Ficalora
Willis, TX
(2637 posts)

Registered:
10/24/2007 02:46PM

Main British Car:
'76 MGB w/CB front, Sebring rear, early metal dash Ford 302

authors avatar
Re: functional hood vent Healey 100-6
Posted by: rficalora
Date: January 23, 2015 09:59PM

I don't know for sure, but I'd bet the hood scoop area of the hood is a high pressure area. So, it would probably work as a cold air intake. I doubt it will help with engine cooling and likely would worsen it. Your radiator is what cools the motor. And max air flow through it is what's going to make it more efficient. Without inner fender holes, you have limited space for the air in the engine bay to escape. So if you are pumping extra air through the scoop into the bay, and that air can't escape easily, you'll likely build pressure in there - so now less air will go through the radiator - at least while moving. It may help at idle.


florianscholz
chris scholz
Iowa
(24 posts)

Registered:
12/05/2014 08:06AM

Main British Car:
1959 BN4 100-6 5.7 V8 LS1 from corvette/camaro and 4L60E

Re: functional hood vent Healey 100-6
Posted by: florianscholz
Date: January 24, 2015 07:56AM

That makes sense. I think the key to proper cooling is not only to get the best radiator, but build the shroud correctly so the electric fan is doing its job. I have also seen owners fabricate sheets of aluminum under the car to feed air into the radiator properly.

I am curious if the hood vent is large enough to serve as a cold air intake.

Chris.


maxwedge5281
larry ingram

(50 posts)

Registered:
09/23/2014 05:59AM

Main British Car:
59 bn6 zz4 sbc, 63 bj7 383sbc

Re: functional hood vent Healey 100-6
Posted by: maxwedge5281
Date: January 25, 2015 06:52AM

chris to give more space at the front of the engine have you considered a mezziere remote water pump. i have one on one of my porsche conversions and run an electric puller fan.....in a porsche 930. the intake system is reversed as well. not sure either would work on the healey but works well on the 930. the picture is of the ls7 with a little over 700 chp ...probably a bit stout for the healey chassis.
IMG_10771303849631.jpg


florianscholz
chris scholz
Iowa
(24 posts)

Registered:
12/05/2014 08:06AM

Main British Car:
1959 BN4 100-6 5.7 V8 LS1 from corvette/camaro and 4L60E

Re: functional hood vent Healey 100-6
Posted by: florianscholz
Date: January 27, 2015 01:59PM

Larry, thanks for the advice. How reliable are these electric water pumps? It appears I may have enough room for the LS1 and the aluminum rad with the electric fan.

I am more concerned about the cooling capacity. I do not want to settle for cutting any vents in the hood or fenders. I believe with the dual pass aluminum rad and the 14" electric fan (with a proper shroud) I should be fine. Does the electric water pump help with increased flow at idle? This would be nice when the Healey is in a parade on the Fourth of July, and idling for 30' when it runs 100 degrees in Iowa!

Chris.


maxwedge5281
larry ingram

(50 posts)

Registered:
09/23/2014 05:59AM

Main British Car:
59 bn6 zz4 sbc, 63 bj7 383sbc

Re: functional hood vent Healey 100-6
Posted by: maxwedge5281
Date: January 27, 2015 07:46PM

chris, there are a couple variations with various inlets and outlets. the one i have in my 930 flows 55 gallons per minute which is great for idle. and at highway speed it flows 55 gpm which is more than adequate for my purposes. that is what i like about the flow at idle. and with an electric puller fan does a good job on my car. might want to talk to renegade hybrids about that....the remote pumps are available at summit, jegs, speedway, etc.


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