Drivetrain Hood Vents (part 2)
Originally Posted by MSFITOY
Want to walk the tight rope Tony? Try taking your headlamp apart in the oven



Also constantly peering over his shoulder hoping his wife doesn't walk into the kitchen just yet.
Nothing like filling the house with the aroma of high beams!
Originally Posted by Bahamabart
Can't you all picture Sid with giant cooking mitts and apron on, peering into the oven to see if the high beam are "done yet"?
Also constantly peering over his shoulder hoping his wife doesn't walk into the kitchen just yet.
Nothing like filling the house with the aroma of high beams!
Also constantly peering over his shoulder hoping his wife doesn't walk into the kitchen just yet.
Nothing like filling the house with the aroma of high beams!


Originally Posted by herbie hind
i'm thinkin' steal some of the cowl space ...cut a hole for a muffin fan and put a toggle in the cabin to switch it on . yhis could pull hot air out .
It would also pull heat and any odors right into your HVAC system making the already lame AC less efficient.
It was suggested by someone earlier and I was hoping there would be some follow up on the idea of incorporating an exit duct for the DFIC.
Underhood heat isn't as big a deal as is often suggested but making the IC more efficient has immediate and constant dividends.
I attached some string to the hood vent grill and cut the string when it reached the top of the vent. On the highway the string straightened out and was moving around so I have to assume that I am getting some outward draw from the vents.
My first tests were with longer string and I thought at slow speeds the vents were drawing in air but it may just be that its an air dead zone. The shorter strings at low speeds just laid there with no movement about.
I want to try a few more things but it does seem at higher speeds to draw air out of the engine compartment.
From a water perspective it rained and I found some water droplets inside but not much. The vents aren't that big to begin with and the location of the vents seems to keep water off the top of the engine. I will have better understanding once I break out the hose and wash the car.
My first tests were with longer string and I thought at slow speeds the vents were drawing in air but it may just be that its an air dead zone. The shorter strings at low speeds just laid there with no movement about.
I want to try a few more things but it does seem at higher speeds to draw air out of the engine compartment.
From a water perspective it rained and I found some water droplets inside but not much. The vents aren't that big to begin with and the location of the vents seems to keep water off the top of the engine. I will have better understanding once I break out the hose and wash the car.
I just didn't feel I was going to be able to replicate your good work. Perhaps I have too many tools
.I am pleased with how my vents came out (have little choice
) about the only thing I don't like is the illusion of the straight on pics that I posted were it seems they are angled a bit when they are not. I am using the original clips and they are not perfectly flush. I will be taking them off, removing the original clips and run 3M tape around the lip. I estimate with the grills installed that its about 4 of the full size vents that you have. Without the grills it would be double appr. So I may opt to remove the grills even though I think white grills are a nice touch.
It would also pull heat and any odors right into your HVAC system making the already lame AC less efficient.
It was suggested by someone earlier and I was hoping there would be some follow up on the idea of incorporating an exit duct for the DFIC.
Underhood heat isn't as big a deal as is often suggested but making the IC more efficient has immediate and constant dividends.
It was suggested by someone earlier and I was hoping there would be some follow up on the idea of incorporating an exit duct for the DFIC.
Underhood heat isn't as big a deal as is often suggested but making the IC more efficient has immediate and constant dividends.
by steal some space ; i meant seperate the cowl into two parts . seal off the cabin usage from the stolen space . then put the fan in the partition between the engine bay and cowl to pull heat up and out in front of windsheild ; but what would that do to view on cold days?
BTW I wasn't knocking the idea. It's been dicussed before. That's why I commented. I just remembered some of the pros and cons.
I nice honking 12v bilge fan will move a lot of air and the good ones are pretty quiet.
Use 2 smaller ones and blow it out the side marker vents.
BTW I wasn't knocking the idea. It's been dicussed before. That's why I commented. I just remembered some of the pros and cons.
I nice honking 12v bilge fan will move a lot of air and the good ones are pretty quiet.
BTW I wasn't knocking the idea. It's been dicussed before. That's why I commented. I just remembered some of the pros and cons.
I nice honking 12v bilge fan will move a lot of air and the good ones are pretty quiet.
This is going toward something that I'm been drawing-up for a couple or so months now. I actually PM'd Dr O on the idea, but with the powerful "e-ram" fan (less than 4" diameter), in a bilge fan type set-up, with the high-temp ducting (about 2') draped downward past the header...
http://www.electricsupercharger.com/

http://www.vermontficks.org/northern...oling_fan.html
This would suck-out the hot engine bay air, and also help pull air through the IC, especially with something like the DFIC. I'm sure it would help and make a difference. If it would merit the cost, and effort, maybe not... I actually checked e-Bay today, but didn't find anything worth pursuing
Just wanted to chime-in...
http://www.electricsupercharger.com/

http://www.vermontficks.org/northern...oling_fan.html
This would suck-out the hot engine bay air, and also help pull air through the IC, especially with something like the DFIC. I'm sure it would help and make a difference. If it would merit the cost, and effort, maybe not... I actually checked e-Bay today, but didn't find anything worth pursuing
Just wanted to chime-in...
This is going toward something that I'm been drawing-up for a couple or so months now. I actually PM'd Dr O on the idea, but with the powerful "e-ram" fan (less than 4" diameter), in a bilge fan type set-up, with the high-temp ducting (about 2') draped downward past the header...
http://www.electricsupercharger.com/

http://www.vermontficks.org/northern...oling_fan.html
This would suck-out the hot engine bay air, and also help pull air through the IC, especially with something like the DFIC. I'm sure it would help and make a difference. If it would merit the cost, and effort, maybe not... I actually checked e-Bay today, but didn't find anything worth pursuing
Just wanted to chime-in...
http://www.electricsupercharger.com/

http://www.vermontficks.org/northern...oling_fan.html
This would suck-out the hot engine bay air, and also help pull air through the IC, especially with something like the DFIC. I'm sure it would help and make a difference. If it would merit the cost, and effort, maybe not... I actually checked e-Bay today, but didn't find anything worth pursuing
Just wanted to chime-in...
. While this is another alternative to heat management, I think passive hood vents are the way to go in the long run. My journey started with monitoring Ebay for hood vents and found quite a variety of styles. You all see what I ended up selecting. The cost of the vents was 30 some bucks and the install (cut and paint) was 150.00. A do-it-yourselfer can turnkey this project for under 100 bucks so it falls within the budget enthusiast mods.
This is going toward something that I'm been drawing-up for a couple or so months now. I actually PM'd Dr O on the idea, but with the powerful "e-ram" fan (less than 4" diameter), in a bilge fan type set-up, with the high-temp ducting (about 2') draped downward past the header...
http://www.electricsupercharger.com/

http://www.vermontficks.org/northern...oling_fan.html
This would suck-out the hot engine bay air, and also help pull air through the IC, especially with something like the DFIC. I'm sure it would help and make a difference. If it would merit the cost, and effort, maybe not... I actually checked e-Bay today, but didn't find anything worth pursuing
Just wanted to chime-in...
http://www.electricsupercharger.com/

http://www.vermontficks.org/northern...oling_fan.html
This would suck-out the hot engine bay air, and also help pull air through the IC, especially with something like the DFIC. I'm sure it would help and make a difference. If it would merit the cost, and effort, maybe not... I actually checked e-Bay today, but didn't find anything worth pursuing
Just wanted to chime-in...
Bart, it might have been before you joined the Community, but there was a discussion on it. Ping Dr O. He seemed to feel that it had some merit; and actually got some grief for believing so...
Dr. O stood pretty much alone on this one
. One MC owner tried it and felt it added HP.back on topic - forget the fans, and before cutting the hood wait for the M7 DFIC vent.
I was afraid someone would ask.
That was actually the best pic I could find and it was from Amazon of all places.
After looking around though most of the big 4" 12v fans go from 220 to 250CFM





