Turbo heat shield or not?
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Turbo heat shield or not?
I was told that I should put on a turbo heat shield and that it should help lower under hood temps. I got a hold of a stock setup. I cut the stock setup, so it would fit around my downpipe, which really wasn't that bad. I'm not sure whether I like the looks of the stock heat shield. It looks kind of goofy. My turbo is ceramic coated, so I don't know.... Once it's running, I'll try and take some under hood temps with and without the shield to see if it really makes a difference or not.
Was curious what others may have found in terms of other heat shield products and/or whether they really help or not.
John had put the SPT shield on, but the pic links are dead, so I don't remember what that setup looks like.
http://bbs.legacycentral.org/viewtopic.php?f=3&t=33689
Was curious what others may have found in terms of other heat shield products and/or whether they really help or not.
John had put the SPT shield on, but the pic links are dead, so I don't remember what that setup looks like.
http://bbs.legacycentral.org/viewtopic.php?f=3&t=33689
Josh
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1990 Legacy (AWD, 6MT, & EJ22T Swap)
2020 Outback Limted XT
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Re: Turbo heat shield or not?
do you have the scoop splitter still installed on your hood? The stock splitter is designed to take in cold air from the scoop and push it directly onto the exhause housing on the turbos (If you don't have a tmic)
if you have an FMIC (i cant remember if you do or not) then i would use the heat shield and the splitter (If you have it, or source one)
if you have an FMIC (i cant remember if you do or not) then i would use the heat shield and the splitter (If you have it, or source one)
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Re: Turbo heat shield or not?
I have an AWIC core and no splitter/diverter or anything like that. It won't fit with the AWIC core.
Josh
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Re: Turbo heat shield or not?
hmm, if the shield will fit, then run it
91 L-TW Wagon with a full Swap -RIP
92 SS Prefaced, GD dash swapped, 22T/205 Hybrid 20 psi - BEAST!
93 SS Bone Stock Gone!
94 TW Bone Stock Gone!
91 SS 4EAT Sold!
98 LGT 4EAT
98 LGT Wagon 4EAT
92 SS Prefaced, GD dash swapped, 22T/205 Hybrid 20 psi - BEAST!
93 SS Bone Stock Gone!
94 TW Bone Stock Gone!
91 SS 4EAT Sold!
98 LGT 4EAT
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Re: Turbo heat shield or not?
im running a stock wrx one on mine since i dont have a scoop to line up to the chimney
it does a decent job of keeping a little bit of heat out of the engine bay for sure
when i have some money laying around im going to try some of that gold heat tape for the inside of wrx shield
it does a decent job of keeping a little bit of heat out of the engine bay for sure
when i have some money laying around im going to try some of that gold heat tape for the inside of wrx shield
Re: Turbo heat shield or not?
If fitments an issue how about a heat shield blanket instead?
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Re: Turbo heat shield or not?
Fitment is not an issue. It bolts right in. I'm just not sure I like the look of it. If I get a decent heat reduction, I may look into that gold heat tape as well.
Josh
surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
2020 Outback Limted XT
If you need to get a hold of me please email me rather then pm
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If you need to get a hold of me please email me rather then pm
Re: Turbo heat shield or not?
Oh ok, I voted for keeping the heat shield on.
-04 WRX STi - Java Black Pearl - Cobb Stage 2
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-92 Legacy Sport Sedan - Onyx Black Pearl - Stock
-02 Forester Type S premium - Platinum Silver Metallic - Stock
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Re: Turbo heat shield or not?
Cool. I haven't ever had one, so it was something I was thinking about adding. When I get it running, I'll take temps and report back.
Josh
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1990 Legacy (AWD, 6MT, & EJ22T Swap)
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If you need to get a hold of me please email me rather then pm
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Re: Turbo heat shield or not?
I still haven't taken any temps, but did get some of the gold reflective tape and put it on yesterday. When I get the car back running again, I'll take some temps
Here's pics of my gold wrapped heat shield.
http://www.main.experiencetherave.com/s ... pdswap/19/
Here's pics of my gold wrapped heat shield.
http://www.main.experiencetherave.com/s ... pdswap/19/
Josh
surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
2020 Outback Limted XT
If you need to get a hold of me please email me rather then pm
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Re: Turbo heat shield or not?
Actually the stock hood doesn't have a scoop. Its designed to let the heat funnel its way up out of the hood. The hole in the hood is nothing more than a vent.cj91legss wrote:do you have the scoop splitter still installed on your hood? The stock splitter is designed to take in cold air from the scoop and push it directly onto the exhause housing on the turbos (If you don't have a tmic)
if you have an FMIC (i cant remember if you do or not) then i would use the heat shield and the splitter (If you have it, or source one)
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Re: Turbo heat shield or not?
I vote heat blanket. Works pretty good and surely much more effective than a shield.
98 Metro Hatch Daily Driver :)
91 SS EJ20G Engine/Tranny/Diff Swap Build Thread Here
"Your testes are close to your bottom but you still play with them all the time." Jeremy Clarkson
91 SS EJ20G Engine/Tranny/Diff Swap Build Thread Here
"Your testes are close to your bottom but you still play with them all the time." Jeremy Clarkson
Re: Turbo heat shield or not?
A heat blanket may be a little more effective, but the main thing the heat shield and blanket block is the radiant heat. The blanket may block a little more, but I'm not sure how much.
Josh
surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
2020 Outback Limted XT
If you need to get a hold of me please email me rather then pm
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1990 Legacy (AWD, 6MT, & EJ22T Swap)
2020 Outback Limted XT
If you need to get a hold of me please email me rather then pm
Re: Turbo heat shield or not?
One of the things like about the stock chimney is when you shut the car off the heat from the turbo is funneled up and out the hood scoop rather than having no place to go. That goes a long way to staving off heat soak.
Jeff
Jeff
91 Black SS 5spd. Edm lights, wrx gauges in dash, 45 degree airbox, cryoed drilled and slotted brakes. Invidia divorced downpipe with custom stainless exhaust. To be installed, aluminum a-arms, manual belts, awic.
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Re: Turbo heat shield or not?
True. My intercooler will go from 50 degrees to 150+ easily just sitting for 10-15 mins with the car off. Most of that is from the turbo via the intake tract though I'm pretty sure.
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91 SS EJ20G Engine/Tranny/Diff Swap Build Thread Here
"Your testes are close to your bottom but you still play with them all the time." Jeremy Clarkson
91 SS EJ20G Engine/Tranny/Diff Swap Build Thread Here
"Your testes are close to your bottom but you still play with them all the time." Jeremy Clarkson
Re: Turbo heat shield or not?
It's probably due to the high engine ambient temps. You don't really have any flow through the turbo and I don't think you'll see much convective heat transfer through the air between the turbo and the intercooler. Plus the compressor side is the "cool" side of the turbo.kimokalihi wrote:True. My intercooler will go from 50 degrees to 150+ easily just sitting for 10-15 mins with the car off. Most of that is from the turbo via the intake tract though I'm pretty sure.
You could test this by wrapping the intercooler in some kind of insulation just after shutting the car off and then check the temperature after 10 min and see how it compares to a non insulated intercooler.
Josh
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1990 Legacy (AWD, 6MT, & EJ22T Swap)
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If you need to get a hold of me please email me rather then pm
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Re: Turbo heat shield or not?
Perhaps but that cold side of the turbo gets quite hot. Not something you'd want to touch.
98 Metro Hatch Daily Driver :)
91 SS EJ20G Engine/Tranny/Diff Swap Build Thread Here
"Your testes are close to your bottom but you still play with them all the time." Jeremy Clarkson
91 SS EJ20G Engine/Tranny/Diff Swap Build Thread Here
"Your testes are close to your bottom but you still play with them all the time." Jeremy Clarkson
Re: Turbo heat shield or not?
I understand it does get hot, but I still think the majority of the heat input is from the surrounding engine components.
Josh
surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
2020 Outback Limted XT
If you need to get a hold of me please email me rather then pm
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1990 Legacy (AWD, 6MT, & EJ22T Swap)
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If you need to get a hold of me please email me rather then pm