Some of you know, my scoop is just messed up, so Im planning on re-doing it as soon as i can get my hands on a hood. Now, included is a pic of what i was thinking (this is someones car on here that i took the pics from).

He only has that type of vent/scoop done to one side, i can either go:

1. Have that scoop/vent on just the turbo side
2. Have that scoop/vent on both sides to even things out
3. Have no scoop at all.

If I dont have a scoop, im just worried about the high temperature will ruin something along the line. Either way, i will be adding something to the hood to keep the heat from melting the paint of damaging the scoop/vent if there is one.

What do you all think?

3, definitely 3. I have no love for teh scoop!

No scoop. See if the paint melts.

Well thats the thing, i gotta get the heat out of there somehow. As it is, you can see the heat just pouring out of the scoop, if i dont have a way to release some heat, things might get damaged, thats all im worried about

You don't currently have any heat wrap on anything around the turbo do you? Do you have heat wrap on your hood, or tubing? Your paint isn't bubbling as it is, I remember it did but that was on the plastic part. There are tons of cars with turbos that have no vents/cutouts in the hood and they are just fine.

I have the heat wrap on the downpipe, a heat shield over the turbo and not really any type of heat shielding (that foil type stuff that is on the hood pads). I remember when it bubbled the paint, but we think it was cause when i had an oil leak, it got all over the pad and the heat made the oil steam a bit and bot under the paint, if that makes sense.

I really dont want to put a scoop/vent in, but worry about the heat.

I really dont want to put a scoop/vent in, but worry about the heat.

Here's what ya do.

Take your hood off. cut off the current scoop. Weld in a patch panel (doesn't have to be pretty). Get some rattle can stuff. Primer and paint the patch with some regular enamel. Put the hood back on. Run the car around town for a day. See if the paint bubbles. Since the hood is trash you can use it to test whether venting is required.

I'd say run without a scoop. I assume you will be getting a new hood for this, when you do, don't paint it right away and just see what happens, it the paint bubble that re-think the situation, if it does not bubble, paint it to match and away you go. I hope that makes sense.

Here's what ya do.

Take your hood off. cut off the current scoop. Weld in a patch panel (doesn't have to be pretty). Get some rattle can stuff. Primer and paint the patch with some regular enamel. Put the hood back on. Run the car around town for a day. See if the paint bubbles. Since the hood is trash you can use it to test whether venting is required.


You beat me to it...

Yeah thats what i had in mind as well, i will do that and see how it goes. What about the electronic components, thats another worry, such as my coil packs.....althought they are not that close to the turbo, it would think they would get hot with the heat just rolling around in there, who knows, ill just try it without a vent and see how it goes.

Yeah thats what i had in mind as well, i will do that and see how it goes. What about the electronic components, thats another worry, such as my coil packs.....althought they are not that close to the turbo, it would think they would get hot with the heat just rolling around in there, who knows, ill just try it without a vent and see how it goes.

The only time your turbo should make a good bit of heat is under load. Which means that you're moving. If you're worried about temps I'd hook an air temp switch up to your electric fan relay and if the air temp reaches X° then it should kick on the engine fan.

the latest issue of grm has an e36 touring that needed a lot of heat shielding due to a turbo... check that part out about what required heat shielding for what its worth (hopefully something)

I would say, no scoop - makes for a much cleaner/sleeper look! If you really need to direct some fresh air to the turbo side, remove the high beam from that side and make an air vent and channel the air to the turbo area.

Cheers,
Marco

I would say, no scoop - makes for a much cleaner/sleeper look! If you really need to direct some fresh air to the turbo side, remove the high beam from that side and make an air vent and channel the air to the turbo area.

Cheers,
Marco

that seems to be the best idea to get some air on that thing

then you can use that tube to vent to intake and cool the turbo

dual purpose FTW :D

that seems to be the best idea to get some air on that thing

then you can use that tube to vent to intake and cool the turbo

dual purpose FTW :D

The only problem is that when the car is moving I doubt that anything is wrong. The tube that's plumbed to the turbo doesn't do squat unless the car is in motion. Therefore I really don't think that it will be that much of a benefit.

No scoop.

I have held back on saying this before, but since we're on the topic....

Your getting air going the wrong way for this. Right now you have an open scoop trying to catch air and redirect it towards the turbo. But no real way to get it to the turbo once it has cleared th underside of the hood. Yes, you have a top mount, which means it doesn' have to go far. But most turbo cars aren't running scoops to get cold air to the outside of the turbo. They are running scoops to get air to an intercooler. Most turbo cars that aren't running a top mount IC are using a VENT instead of a scoop. The old Chrysler turbo's were that way, as are a lot of newer import hoods on the market. Closer to home, the e46 M3 GTR (or whatever the LMS cars were called) had a hood designed to vent hot air from the radiator. The same type of idea is what you should be looking at IF you are worried about heat. There is plenty of air getting to the outside of the turbo from the front and bottom of the car. You just need to channel the air out of there. So either need to do what Matt did on the Hartge, or get some venting in above and behind where the turbo currently sits. That canbe low profile enough that people will never see it unless they are standing right next to the car or you have the hood open.

oh atilla i have a hood laying around but it would be rather costly to ship but i have one i dunno the condition but i could give it to ya for the cost of shipping if you promise to help me turbo my car :D

I have held back on saying this before, but since we're on the topic....

Your getting air going the wrong way for this. Right now you have an open scoop trying to catch air and redirect it towards the turbo. But no real way to get it to the turbo once it has cleared th underside of the hood. Yes, you have a top mount, which means it doesn' have to go far. But most turbo cars aren't running scoops to get cold air to the outside of the turbo. They are running scoops to get air to an intercooler. Most turbo cars that aren't running a top mount IC are using a VENT instead of a scoop. The old Chrysler turbo's were that way, as are a lot of newer import hoods on the market. Closer to home, the e46 M3 GTR (or whatever the LMS cars were called) had a hood designed to vent hot air from the radiator. The same type of idea is what you should be looking at IF you are worried about heat. There is plenty of air getting to the outside of the turbo from the front and bottom of the car. You just need to channel the air out of there. So either need to do what Matt did on the Hartge, or get some venting in above and behind where the turbo currently sits. That canbe low profile enough that people will never see it unless they are standing right next to the car or you have the hood open.

The thing is, that scoop is not really meant to cool the turbo per-say, but rather to let the heat out and not possibly damage electronic stuff. But the scoop does cool the turbo since the air is getting to the turbo

oh atilla i have a hood laying around but it would be rather costly to ship but i have one i dunno the condition but i could give it to ya for the cost of shipping if you promise to help me turbo my car :D

If you can let me know how the hood looks, please do so, wonder how much shipping would be though. And of course i can help you with ur turbo, not sure how, but ill do my best.

The thing is, that scoop is not really meant to cool the turbo per-say, but rather to let the heat out and not possibly damage electronic stuff. But the scoop does cool the turbo since the air is getting to the turbo

Ok, so then if the point IS to let the heat out, then you need to turn the hole around. Right now very little heat would be getting out while you're at speed since you have air rushing IN through that opening. And like I said before, with the openings in the grilles and under the car that are allowing air into the engine bay, you need to provide the hot air with an exit. So basically a vent, like what Matt has on the side of the Hartge, something on the top of the hood on that side of the car, or something similar along the back of the hood/engine bay.

you could modify/cut-out the passenger-side of the blower cover area so that it vents engine bay air out of those stock hood vents.
however, that area near the base of the windshield & back of the hood is a relative high-pressure area when the car is @ speed...so that could be counter-productive of what's trying to be achieved. But I'm not sure if that area would be at a relatively higher pressure than the air under the hood?
Would be pretty trick & clean if it does work.


Or...just keep the current hood. Put a mesh grille where that scoop is (make it flush with the hood). That should help heat escape when the car is stopped, and should provide a relative low-pressure zone that'll 'suck' engine bay air out when @ speed.
Just don't drive in the rain...or fab up a cover that can go on it

If you can let me know how the hood looks, please do so, wonder how much shipping would be though. And of course i can help you with ur turbo, not sure how, but ill do my best.


ys i can prob take some pics tomorrow but its kinda buried now but well see, keep in mind it would need everything and possibly some bondo or heavy body work so it may not be worth it but ill let you decide

Buy an Impreza hood somewhere from the junkyard and then take the scoop.

i say run no hood

EDIT:

Or this....

http://img390.imageshack.us/img390/5009/twinturbout3.jpg

i say run no hood

EDIT:

Or this....

http://img390.imageshack.us/img390/5009/twinturbout3.jpg


bloody brilliant us aussies, always thinking up genius ways to let the heat out haha.

If your going to run a scoop at all i would defiantely turn it around so its a vent and then it becomes more practical. But i do prefer the no scoop/vent look. A beanie for the rear housing would help to and also help the turbo, i have read they like to stay warm and it helps them spool quicker(mustn;t be too noticable though as i didn't notice a difference on the wrex, which also has the standard scoop turned around, it has front mount instead of top mount)

Buy an Impreza hood somewhere from the junkyard and then take the scoop.
YEAH!!!!





wait.

Buy an Impreza hood somewhere from the junkyard and then take the scoop.

Are you pulling my chain? :confused

Yeah, I saw that on TV over the weekend, it's making something like 1671rwhp!!

I've never been a fan of the scoop. My vote is to lose it.

With proper heat shielding on the bottom of the hood you should be fine.

I've never been a fan of the scoop. My vote is to lose it.

With proper heat shielding on the bottom of the hood you should be fine.

Yeah thats what i am going to.

Thanx for the input guys

Some of you know, my scoop is just messed up, so Im planning on re-doing it as soon as i can get my hands on a hood. Now, included is a pic of what i was thinking (this is someones car on here that i took the pics from).


Atilla, found these vents while searching for something else on eBay..

http://cgi.ebay.com/ebaymotors/97-Camaro-Z28-LT1-HOOD-SCOOPS-VENTS_W0QQitemZ230251325985QQihZ013QQcategoryZ3364 6QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

i like the scoop. makes yours unique.

i like the scoop. makes yours unique.

I can go 360 directions with this quote, but I will refrain.

i like the scoop. makes yours unique.

I can go 360 directions with this quote, but I will refrain.

refrain.

i was referring to the tostitos scoop...

It's not too hard to manage the turbo heat with todays technology. Disassemble your turbo and send the exhaust side housing, your exhaust manifold, and your down pipe out to be ceramic coated. Mount a thin polished stainless steel plate 3/8" or so on the bottom side of the hood and you will never ruin the paint. The Ceramic coatings will also increase the turbo spooling speed.

As far as scoops and vents go this stuff was sorted out in the late 60's and early 70's. The hood is a low pressure area on it's surface other than at the leading edge and the cowl just in front of the windshield. For an inlet scoop to be effective it must be several inches above the hood surface. Vents on the surface are quite effective at letting heat out.

I like the idea of the group 5 fender vents along the rear edge by the door...
Or maybe fender vent slots like some of the Range Rovers use.

ken

my suggestion would be to bolt an additional sheet metal heat shield on the turbo itself, or at least over top of the turbo. Think of how motorcycle exhaust is shielded, or stock heat shields on some stock exhaust manifolds. If you had heat wrap on the turbo, plus a single or even double layer sheet metal heat shield, your hood should be fine. Just my $.02

Well im going to go without a scoop/vent.

Right now i have the heat wrap on the down pipe, but not on that turbo, the turbo just has a "heat shield" over it. With the shield, you can still see alot of heat coming out of the current scoop.

hey atilla would you still be interested in my spare hood?

hey atilla would you still be interested in my spare hood?

Not sure, what condition is it in? I want one that i dont have to do anything to but sand, dont want to do bodywork.

Not sure, what condition is it in? I want one that i dont have to do anything to but sand, dont want to do bodywork.

haha well knowing what i know about how sensitive these hoods are to warping and how hard the bodywork is you will not want my hood haha

So i was looking on e-bay for turbo blankets and:eek:!!! DAMN! $110.00 for that, yeah right!

http://cgi.ebay.com/ebaymotors/Universal-Turbo-Blanket-Turbo-Heat-Shield-Black_W0QQcmdZViewItemQQcategoryZ33742QQihZ019QQit emZ290230474449QQrdZ1QQsspagenameZWDVW

It sounds like you wanna vent the heat out from under the hood, and like the others said if you're movin' you should have some air(enough air?) flowing under the hood to force the heat up through a vented panel...? I think that it WOULD look cool to have some GTR like duct ventings along the turbo side of the hood.

pm sent