Turbo blanket and heat wrap

[hayko989]

Hey guys, first time posting here hoping I could get some advice. I'm building a 05 LGT with a 5EAT. One of my local machine shops is putting my engine together. Just for some background info I went with a IAG Stage 2 shortblock with new heads and cams, Brian Crower valvetrain, KillerB oil pickup, baffle and pan and some more goodies for the longblock. Currently have a VF52 turbo, mishimoto TMIC , IAG AOS, and the Uppipe waiting to be bolted on when i get the engine back. I'm also getting Invidia DP, catback, 740CC injectors with a walbro pump, HKS BOV, Cobb CAI, Upgraded coil packs, PU motor mounts, mishimoto radiator, expansion tank and trans cooler to complete the build. I'm aware that my block will be able to handle much more than what i can get out of a VF52 but my main goal is to build a reliable setup that can be tracked for multiple seasons/years without major issues. So I started doing some research on turbo blankets and heat wrap and I couldn't find any information on what needs to be heat wrapped and what shouldn't. Might sound like a dumb question, but I'm not sure if i should wrap the headers, uppipe, downpipe, catback??? My turbo's getting a blanket but I have no clue what to do with the rest of the exhaust. Any advice from people with experience on this stuff would be greatly appreciated.

[Notorious]

Turbo blanket is fine, works better than a heat shield. No need to wrap headers. Down pipe and Up pipe are fine to be wrapped but people are cautious about wrapping the up pipe because it may get soaked in oil if you have a leak, same goes for the headers and that’s a fire hazard

[hayko989]

Turbo blanket is fine, works better than a heat shield. No need to wrap headers. Down pipe and Up pipe are fine to be wrapped but people are cautious about wrapping the up pipe because it may get soaked in oil if you have a leak, same goes for the headers and that’s a fire hazard

 

So if I go with a blanket theres no need for a shield right? And I will probably just heat wrap the DP to be safe.

[Max Capacity]

Correct one or the other, blanket or heat shield.

 

I have gold foil on the underside of my stock heat shield.

[Infosecdad]

You can do both, I have both a blanket and headshield (x2) and so has several others.

 

Lava blanket, OEM headshield, STi heatshield

[Max Capacity]

Just more money...But the point is to keep heat in the turbo.

 

 

There is also some thoughts about wrapping the DP helps it to rust faster...I did wrap the new DP on the wagon. The old catless one was wrapped for years too. Its still solid.

[JmP6889928]

Wrapped ELH, wrapped UP, wrapped DP, wrapped all the way back to the Y-keeps the cabin noise down. I run the Thermal Zero blanket under a Cobb Heat shield.

[KRM]

I'm using the thermal zero blankets on the up/down/turbo in my car. They do the job well. Been holding up well since JMP sent my turbo to me...

[boxkita]

if you plan to track your car alot, I'd use a heat shield over the turbo. And add shielding between the block and the up-pipe. Also, between the exhaust and the transmission. That's it.

 

Your engine compartment will be smoking hot after a session. Cooking your turbo is a real possibility especially if its a journal bearing and you don't do a cool down lap (over 35 mph in under no load will be best). open your hood when you get back to the pits and put a 10 lb bag of ice on your intercooler.

 

Wraps are mostly for looks if on track. Look at the heat ratings on them. The fine print says 30 seconds or less at rated temp. I have 3 engines with cooked on wrap which looks alot like baked on glass.

 

You are looking to shield fragile bits from excessive heat. The passenger CV joint boot is a common melty component that needs shielding. The power steering lines are another. The footwell on driver's side is another (I melted a shoe after a long day).

 

If you really want to wrap your turbo, use a metal heatshield with radiant material toward the front to reduce heat transfer to the compressor side. Also wrap the TMIC and hoses in radiant shielding to keep them cooler.

 

If you only drive on the street and do a track day once a year, then ignore me.

[markc0220k]

...But the point is to keep heat in the turbo..

 

 

i could undetrstand blanket for track day since you would drain the engine oil

by the end of the day before oil getting cool down and becomes sticky. But how about daily driving? would blanket bad (heat) for the engine oil from daily drive?

 

i searched and found many good reviews on how blanket keep heat on the turbine and away from the compressor and rest of parts under the hood. But i didn't see anyone talk about the oil?

 

mark

[boxkita]

long post about turbo heat and tracking ignored. Internet reviews believed. Best of luck to you. I suggest a quick release fire extinguisher attached to the passenger side tunnel.

[shralp]

Running a Faction Fab blanket, (the high temp one) and the new Grimmspeed V2 heat shield with DEI gold tape on the inside. I like the way Faction Fab sews up their blankets, it’s already pre formed to the shape of the turbo instead of just being flat like everyone else’s. You can run a shield or a blanket or both but do at least one. I think of a blanket as disposable. Luckily you don’t take it on and off much, but each one I’ve had on my cars, both my daily and my track car, regardless of manufacturer, is stiff and pretty deteriorated once you take it off. Just get a new one. In the past I’ve run the stock heat shield trimmed to accommodate an aftermarket DP with a blanket underneath, that works good too. Edited March 14, 2020 by shralp

[boxkita]

the reason the covers get crusty is because the first heat cycle tempers it. The DEI gold foil has an instantaneous rating of 30seconds at 1100 degrees. Your turbo hits that easily, peaking at 1500-1800 degrees. Under heavy load, it stays hot for longer than 30 seconds.

 

The titanium wrap is rated to 1800 direct and 2500 instant.

 

Gator had wrapped the racewagon's exhaust header with the DEI titanium wrap. When I got the engine out, it had only 2.5 hours (dyno plus 90 minutes of track time), the wrap had failed and converted the wrap to glass.

 

On his sti, he started using the high heat items from https://www.heatshieldproducts.com/automotive/turbo-heat-shields

If you use this, get a good mask as the fibers are nasty.

 

Use the wrap/blankets/radiant shields or not. Just don't believe the hype. Buy a piece and use a heat gun or torch to simulate the actual temperatures it'll see before putting it on.

 

wrc turbo. metal heat shield tightly coupled to the exhaust but not fully wrapped. oil/water lines wrapped in radiant insulated wrap.

http://www.motorsport-sales.com/images/mcd4809.jpg