968 turbo RS hood vent??????? might work
02-20-2003, 05:12 PM
#2
Nordschleife Master
yeah I saw that site a while ago, and I agree it might work, the problem lies in the shape / bracing of our 951 hoods.
The 968 hood is longer, and thier vent is right where our hood latch is. But I think with some work it would be possible to get it to fit. An extra hood would be nice to try it out on...
Hopefully the hood won't flex too much with the central brace cut, or some reinforcements can be made.....
The 968 hood is longer, and thier vent is right where our hood latch is. But I think with some work it would be possible to get it to fit. An extra hood would be nice to try it out on...
Hopefully the hood won't flex too much with the central brace cut, or some reinforcements can be made.....
02-20-2003, 05:54 PM
#4
Yep, I have a Turbo Cup hood, and there is no center brace. 
I'm not going to cut mine up to put a vent in it, tho!
Regards,
I'm not going to cut mine up to put a vent in it, tho!Regards,
02-22-2003, 12:39 AM
#5
Rennlist Member
Thread Starter
I am going to give it a try. I have a Lindsey stage 5 intercooler and am going to try the vent in the same manner as the 968 turbo RS ... to vent air through the intercooler. I have a fiberglass hood (race car) ... so it will be easy to cut. Will post pics when I get it on. Any thoughts?
944turbo
944turbo
02-22-2003, 11:40 AM
#6
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Maybe add a gurney flap at the leading edge of the opening to help create a low pressure area at the opening. If you look at the 968 vent they added a small spoiler to do this, and most hood vents that are for extraction of air are made this way. The ratio for optimal flow through venting of air ducts for radiators, oil coolers, intercoolers,etc., is 2:3, that is if the intercooler air intake has an area of 20 Sq./in., the exit of the vent should be 30. I haven't been able to find out either the effects of higher air pressure on the intake side of one of these vents as relates to variance of the ratio, or the correct height of the gurney to get the airflow on top of the hood to keep going over the outlet and enhance, not disrupt the airflow trying to exit the vent. I imagine these would be variable relative to the localized aerodynamics at the vent outlet, and the size of the vent, ie. the depth of the vent as measured front to back parallel to the centerline of the car.
