after my last horrable idea for a gas tank skid i hope this one has a little bit more ground to stand on.....
ok so after seeing Yellaheeps jeep in Moab. I wanted to do something similar to his boat vents on the side. i am wanting to do a pair of them one on each fender, using something like these vents....
Im liking the idea .... Guard vents will be much more practical than bonnet vents
Knowing that a raised hood with padding / insulation in the firewall gap, at the centre rear of the hood, vents hot air at slow speeds
and high speeds from the rear corners .......
I bought a couple of these a good while back, to put in the
fenders .....
http://www.whitworths.com.au/main_itemdetail.asp?item=92320&search123=vent&intAbsolutePage=3
http://www.whitworths.com.au/main_itemdetail.asp?item=92313&search123=vent&intAbsolutePage=1
Idea was to remove brake booster and aircon/charcoal cannisters and holesaw through the panels as far back and as high up as possible.
Havent found a
tidy way of getting through all the panel work yet .... but still hacking up the spare body shell for practice ...
:laugh:
Decided on the smaller ones - as the ones in your pic need a lot of mounting space for the backing plate with the hose connections ....
.......................and I like "
discreet" mods ....
For the time being, and until I have enough parts and panels removed because of some other repair ... Im just running the raised hood with packing across the centre ... which provides the same effect as vents in the fenders .... Have engine bay / ambient comparison temps available if your interested.
Wouldnt mind seeing some close up pics of that
Yellaheeps jeep fender vents tho ... to see what he did and how.
I then had a spark of an idea to maybe add a blower to force air out of the engine bay using something like this little guy here.....
a guy could create a cross breeze using two blowers one for intake and one for exhaust. throw these guys on a switch or dual switches and you could flip them on while wheeling for added air flow and cooling. or maybe toss a blower after a cone style filter for a forced air intake setup right in the engine bay or connect it to the vent for forced cold air intake.
thoughts, comments? i know this would help with cooling but would it have potential to cool too much?
The thinking is right but I figured there would be issues with too much additional air.
A lot of the
slow speed overheating issues can be attributed to a lack of air flow through the radiator. The lack of air flow is not just the poor fan setup but a lack of escape routes for the radiator air intake ...
i.e. It cant get down the tranny tunnel quick enough. Common fix for that of course ... is chop holes in the hood
Pump in additional air and it is competing for the same engine bay space the radiator airflow is .... and likely to slow/affect radiator airflow ... especially if the fans CFM is low.
Tis why I smile at XJ induction bonnets ..... vent nicely at slow speeds ... and then pump in back pressures at speeds over 20mph .... which probably means .... a need for a great big taurus fan, as compensation.
My thoughts on using the bilge blower pump in your post, was to place angled cuts in a piece of poly pipe between the blower pump and the outlet aimed at the tranny tunnel / or fender vents .... The slot
angle would allow the vent tube internal air to flow past the slots - but would draw engine bay air into the tube.
After making some phone calls ... I then found the blower pump is not designed for constant operation .... Its only intended for a short operating period to vent
built up bilge fuel fumes in a bilge prior to starting the boat engine.
There are other blower pumps out there ... but they get big and bulky compared to the handy size of the one you showed.
Since I have melted a couple of smaller fans I trialled using as puller fans for engine bay vents ... I wouldnt recommend the "
puller" method ... :laugh:
Have been thinking about the factory fan shroud and putting a hose on the lower section of it to push some air around the top of the motor .... The shape of the shroud is so pathetic its actually restrictive compared to a proper cone shaped shroud ... so a hole in it, behind the fan, would probably be a good thing ...
Will keep an eye on your thread ... Might find just the info I'm looking for on this one.
:cheers: