Ok, so hopefully I get a hood scoop. I won't be running a s/c but I want the hood scoop for looks and primarily for cooling of the engine bay. My hood gets hot! Not like my engine is overheating or anything, but it gets hot.
The only thing, water issues like driving in rain and rain getting into the engine bay (more water than the usual splash from the ground). I'm sure there shouldn't be any problems. But if there is, what would it be?
I'll be dropping in a 4age ST in the future. It does have a plug cover, I think the plug boots have like a cover that closes the plug holes... But water can seep into anything.
I have a scoop on my Celica. Had it on there for a couple of years. I have never had an issue with water in the engine bay. That is not to say I haven't had water in there, but the water hasn't created any issues.
Water in your distributor....that is the main worry with a hood scoop. As for cooling, a scoop won't do much in that regard... but you said you wanted it for looks , anyway.
Water in your distributor....that is the main worry with a hood scoop. As for cooling, a scoop won't do much in that regard... but you said you wanted it for looks , anyway.
Well a hood scoop will help with cooling, and if he does swap in a ST eventually and puts velocity stacks onto the ITBs, then the hood scoop will GREATLY help the engine's cooling.
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Ok, so intake of air for additional cooling (or for engine aspiration) isn't the point.... EXHAUST of heated air from the engine bay is. In that case, you'd be better off reversing the scoop... with the opening to the rear....to take advantage of the low pressure area at the base of the windshield, and help pull air through the engine bay. That WOULD improve cooling. Placing the scoop so that fresh air will be rammed into it.....when you really want the opposite effect.....won't do much, as I said before.
Louvres on the sides of the fenders wouldnt do shit, as theres no airflow from the engine bay to the sides of the front fender. WRX style scoop would only increase drag and unnecessary air flow to the engine bay, evolution style scoop would be the only one that would work in your case.
But why do you need it, just because your hood is getting hot doesnt mean shit, my hood gets so hot that it warps a bit when it gets to full temp and you cant lay our hand on it till it cools down, because the turbocharger is sitting few cm under it. You could literally boil eggs on it.
Quote:
to take advantage of the low pressure area at the base of the windshield
Theres no low pressure area at the base of the windshield, whatever it would be relatively high pressure there and thats where the air to the cabin gets in (if it would be low pressure, it would suck air out from the cabin). I dont know about you, but I dont really want heated air coming in while I'm driving.
Didn't say I need it, I want it... My hood is somewhat warped from heat, too, where the ridges are. Just questioning any possible issues. I'm not turning the hoodscoop towards the rear, I might just well take a hammer and bash the center back of the hood to form a cowl (cowl hood) but I'm not doing that. I think the opening of the scoop is enough to let the heated air escape, I don't need for it to force it out.
Didn't say I need it, I want it... My hood is somewhat warped from heat, too, where the ridges are. Just questioning any possible issues. I'm not turning the hoodscoop towards the rear, I might just well take a hammer and bash the center back of the hood to form a cowl (cowl hood) but I'm not doing that. I think the opening of the scoop is enough to let the heated air escape, I don't need for it to force it out.
cowl hoods don't suck air out, they force air in.
There is a high pressure area in front of the wind shield and it forces into the area above the engine where in most cars that had a cowl hood is where the air filter sits.
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Yeah and while you cut out the metal to put the ducting, you're weakening the chassis aswell at the same time.
I'd say it would have to be a pretty big hole to weaken the chassis, and if done right you actually add to the chassis strength, i.e metal vent channels to the louvers. They don't have to be that big to vent the engine bay either. We do it in dirt track racing cars all the time around here because scoops just shove the mud in the engine bay. Now these cars get hot under the hoods but were talking V8 muscle.
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