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Posted by: LowGT Oct 8 2006, 08:07 PM

So I have no heater plumbing or heat exchangers, but the fan shroud still has the two ports on the bottom to feed the J-tube/heat exchanger.

It seems like I would be losing a lot of head cooling air out of those holes in the fan shroud. Did you guys block those openings off, or just leave them open?

Posted by: So.Cal.914 Oct 8 2006, 08:14 PM

Yes I did, I assembled the shroud and filled the holes with latex calking.

One the calking can be removed if I want to reinstall the heater and latex

calking is paintable. Backed the hole with a piece of foam to keep the calking

from falling inside. Use a wet finger to get a smooth finish on the calking.

Posted by: Dan (Almaden Valley) Oct 8 2006, 08:33 PM

Blocked off with a cover plate

Not good to leave open...your motor needs all the cooling air you can give it.

Posted by: Mueller Oct 9 2006, 01:24 AM

I thought Jake or someone mentioned that simply plugging them up creates strange turbulance inside the fan housing which causes more harm than good....

possibly just have a restriction on the outlets and have it blow onto the bottom of the heads????

Posted by: Aaron Cox Oct 9 2006, 08:57 AM

QUOTE(Mueller @ Oct 9 2006, 12:24 AM)

I thought Jake or someone mentioned that simply plugging them up creates strange turbulance inside the fan housing which causes more harm than good....

possibly just have a restriction on the outlets and have it blow onto the bottom of the heads????

Posted by: Borderline Oct 9 2006, 09:05 AM

Yes, I remember Jake posting that it is better not to block them off.

Posted by: bd1308 Oct 9 2006, 09:19 AM

What if you took the shroud apart and blocked them off from the inside?

that would eliminate the turbulence issue. someone here has done that, he rivited a panel over the cutout for the ducts.