My father in law has a JK and deals with heat issues too. His has a lot to do with the Warn 12000 winch blocking most of the grill.
Hood scoop pics!
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My father in law has a JK and deals with heat issues too. His has a lot to do with the Warn 12000 winch blocking most of the grill.
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- #42
Mines to give more clearance for the SC. About an inch or so is all I need
Box Rocket
SILVER Star
I picked up a scoop (designed for a Mustang) on ebay a while back. I was contemplating using it to help cope with some high engine temps I was having at the time. I put it on for a while purely for cosmetic reasons to see if i even liked it before cutting the hood. The Engine temps ended up being a bad head gasket which I replaced so I never cut the hood to use this again.
But I do keep considering putting the scoop back on or doing some kind of louvers just to let some of the eng compartment heat out. It's crazy hot in there and I think it can only help to reduce those temps however possible.
IMG_4252 by Adam Tolman, on Flickr
But I do keep considering putting the scoop back on or doing some kind of louvers just to let some of the eng compartment heat out. It's crazy hot in there and I think it can only help to reduce those temps however possible.
IMG_4252 by Adam Tolman, on Flickr
Seems to me the backwards hood scoop would work a lot better for general temp reduction under the hood. Air comes in through the front (radiator) and out the back (hood scoop). Forward facing might make your radiator fan work harder to push air through by increasing the air pressure under the hood.
inkpot
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Which SC are you running? My TRD/Kazuma fits fine under stock hood location. But I am always looking at better ways to ventilate the engine bay.
inkpot
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I have read that the middle of the 80 hood is a very low pressure area. I would think that it would be more effective to draw hot air out with louvers or a reverse scoop that to try pushing cool air in with a relatively small, low profile, sports car scoop, especially considering that many of us are running boosted fan clutches that may well increase the positive pressure under the hood.
I run a 6BT in mine, diesels are similar and different, but I guess more effort is put into them for cooling in some ways. It is said many of us drive to the pyrometer on hills than the speedometer for example, intercoolers are also more crucial.
In terms of performance, if you ever have the cylinder head off more often a diesel will have the exhaust or both exhaust and intake ported and polished. It aids in flow, but also decreases heat exchange into the head from exhaust gases (I had my head exhaust side ported/polished done as well) and many note engine temps decrease significantly.
There are additives (water wetter?) and others for coolant to get the heat out of an engine to the radiator better, but also other things like wrapping your exhaust manifold, turbo blanket, and wrapping the first foot or two of the exhaust will help to push the heat further down the exhaust and less in the engine compartment, which is nice for anything electrical in the engine compartment, but just wrapping exhaust manifolds may be more successful at keeping engine bay temps down.
In terms of putting the scoop facing backwards, some like the idea, some prefer forward, my thought has always been to push the hot air down and around the engine, instead of pulling hot gases upwards and over. I guess to some end (perhaps insignificant) with a rear facing you could be pulling the lower dirty air from around the tires (like while driving gravel or muddy roads in the the rain) up and over the engine, so that's part of my rational against a rear facing, though I have no science to back it up.
Excuse my unsolicited council in diesel knowledge if this is all old news for you.
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- #48
It’s a 4.7 transplant with a trd sc, pushes just a touch
Stumbled across this old ROTW with a interesting Scoop mod. a fan pushing air out. Could be good expessially on the trail to suck the air out. ROTW: wildsmith's 94
NCFJ
Supporting Vendor
You can see the heat waves pouring out of this scoop
trackspecmotorsports.com/universal/large-rectangular-universal-hood-louvers
you could just mount them backwards and make it work that way. theres other universal louvers available
Dave 2000
Not all Land Rovers are useless!
Never seen that before except when an intercooler wss fitted above the motor, interesting mod.
Regards
Dave
Louver panel for rear door on dryvan trailer for an 18 wheeler. Most big trailer shops will have these. They cost like 15 dollars each.
I still havent put mine on the 80 , but I bought a few since I need a couple for my headache rack on my truck as well. I might do it when I stick the new radiator, fan clutch, and aux fan in.
I still havent put mine on the 80 , but I bought a few since I need a couple for my headache rack on my truck as well. I might do it when I stick the new radiator, fan clutch, and aux fan in.
Ordered the trackspec kit. Can’t decide on doing the center or not. Thoughts?
I like the way it looks. The side driver vent is right above the fuse box. Will this be an issue?
First post ever, build is well under way so I thought I would finally share.
Thanks for reading!
1992 Fj80
I like the way it looks. The side driver vent is right above the fuse box. Will this be an issue?
First post ever, build is well under way so I thought I would finally share.
Thanks for reading!
1992 Fj80
Can you move the vents closer up towards the windshield? At speed, that would put them in a low pressure area and effectively pull hot air from the engine bay.
recently installed a pair of XJ 5.9L hood lourvers.
Box Rocket
SILVER Star
I had posted my scoop earlier but it was purely cosmetic at the time as I wasn't 100% committed to it. I have since made it a permanent mod. I'm using it to increase some airflow into the engine compartment to help with ambient/engine temps. I plan to also add some vents soon to help. The idea is that the increased air through the scoop will create more high pressure in the engine bay and then the vents will allow the hot air to be pushed out.
Anyway, here are some pics of when I made it more permanent.
IMG_3975 by Adam Tolman, on Flickr
IMG_3974 by Adam Tolman, on Flickr
IMG_3960 by Adam Tolman, on Flickr
IMG_3973 by Adam Tolman, on Flickr
Anyway, here are some pics of when I made it more permanent.
IMG_3975 by Adam Tolman, on FlickrIMG_3974 by Adam Tolman, on FlickrIMG_3960 by Adam Tolman, on FlickrIMG_3973 by Adam Tolman, on Flickr
jjdeneen918
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Did you ever get to doing this mod? I’d like to see how it turned out.
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- #60
Went with a 99 forerunner scoop, It was cut into the hood repainted.
