Stock turbo insulator/heat shield pieces

Pete_89T2 · 01-17-2011, 12:49 PM

Got a question regarding those stock sheet metal heat shields/insulator pieces Mazda saw fit to install around the turbo & exhaust mainfold on FC's. Most of mine were rusted so badly that they can't be used again - the only one that is in reusable shape is the large piece that wraps around the turbine side. The exhaust manifold insulator & other pieces are basically rusted to bits.

Would it hurt anything to leave these off (except for the perviously mentioned piece), or should I pick up some new ones from Mazda? Any good aftermarket alternatives out there?

My5ABaby · 01-17-2011, 01:18 PM

On my N/A I ran without the exhaust manifold heat shield for years and didn't notice any issues besides everything in the engine bay being really hot and the rubber lines on that side of the bay needed to be replaced every couple years. I'm sure it robbed me of some power and such but as far as damaging things other than the rubber lines (all 1 of them on my car + vacuum caps), not that I noticed.

djmtsu · 01-17-2011, 06:44 PM

I never used mine on my TII. It didn't seem to make much difference. If you want, I think you can get a turbo blanket that fits the stock Hitachi.

low compression · 01-17-2011, 07:05 PM

I did some searching a while ago and couldnt find anything. Who makes a blanket that fits? Summit has two one says t4 one t3.

Ender · 02-10-2011, 04:23 AM

isn't there stuff out there you can use to make your own?

btw mine are rusted away, too. the final piece fell of just last week. I might fab up something a little beefier though 'cause I kinda like having that little thermal protection. I think the most critical piece is the one right between the turbo and LIM to keep heat out of the intake charge.

JustJeff · 02-21-2011, 01:44 AM

I've got a turbo swap in my vert and rebuilding the engine. My manifold heat shield is fine. But before my rebuild happened the tabs on my turbo shield started coming off. The ones that bolt the shield down. I got frustrated with the shield rattling against the turbo and cut my shielding off.

I'm thinking of doing this turbo blanket through Prosport. I'm getting some things from them anyway and the price is right.

http://prosportgauges.com/turbo-heat...t-t3-Grey.aspx

jtbshaw · 02-21-2011, 02:24 PM

Just as Jeff mentioned, support one of the forum sponsors:

http://www.rotarycarclub.com/rotary_...ighlight=turbo

Ender · 02-22-2011, 01:40 AM

ooh those are nice.

01-17-2011, 12:49 PM	#1
Pete_89T2 Lifetime Rotorhead Join Date: Apr 2010 Location: Elkton, MD Posts: 874 Rep Power: 16	Stock turbo insulator/heat shield pieces Got a question regarding those stock sheet metal heat shields/insulator pieces Mazda saw fit to install around the turbo & exhaust mainfold on FC's. Most of mine were rusted so badly that they can't be used again - the only one that is in reusable shape is the large piece that wraps around the turbine side. The exhaust manifold insulator & other pieces are basically rusted to bits. Would it hurt anything to leave these off (except for the perviously mentioned piece), or should I pick up some new ones from Mazda? Any good aftermarket alternatives out there?

01-17-2011, 01:18 PM	#2
My5ABaby Sigh..... Join Date: Feb 2008 Location: Murfreesboro, TN Posts: 2,377 Rep Power: 20	On my N/A I ran without the exhaust manifold heat shield for years and didn't notice any issues besides everything in the engine bay being really hot and the rubber lines on that side of the bay needed to be replaced every couple years. I'm sure it robbed me of some power and such but as far as damaging things other than the rubber lines (all 1 of them on my car + vacuum caps), not that I noticed. __________________ 1986 Sport: 132k miles, 5A (Sapphire Blue Metallic), Tokico Blues, Racing Beat Springs, Custom LED tailights (only S4 LED tails in the world), SSR Mark II, Racing Beat exhaust, S5 black interior, Rotary Resurrection rebuild at 120k miles Community Service Manual RotorWiki "Imagination costs nothing; we could build square locomotives or fly to Mars" - Felix Wankel Yesterday is history, tomorrow is a mystery, but today is a gift. That is why it is called the "present."

01-17-2011, 06:44 PM	#3
djmtsu My minds tellin' me no... Join Date: Feb 2008 Location: Murfreesboro, TN Posts: 4,043 Rep Power: 22	I never used mine on my TII. It didn't seem to make much difference. If you want, I think you can get a turbo blanket that fits the stock Hitachi. __________________ 1976 Mazda Cosmo RX-5 1976 Mazda Cosmo RX-5 2003 Toyota Tundra TRD 2015 Toyota 4Runner SR5

01-17-2011, 07:05 PM	#4
low compression The Newbie Join Date: Apr 2009 Posts: 25 Rep Power: 0	I did some searching a while ago and couldnt find anything. Who makes a blanket that fits? Summit has two one says t4 one t3.

02-21-2011, 01:44 AM	#6
JustJeff RCC Contributor Join Date: Mar 2008 Posts: 505 Rep Power: 18	I've got a turbo swap in my vert and rebuilding the engine. My manifold heat shield is fine. But before my rebuild happened the tabs on my turbo shield started coming off. The ones that bolt the shield down. I got frustrated with the shield rattling against the turbo and cut my shielding off. I'm thinking of doing this turbo blanket through Prosport. I'm getting some things from them anyway and the price is right. http://prosportgauges.com/turbo-heat...t-t3-Grey.aspx

02-21-2011, 02:24 PM	#7
jtbshaw ORD - Old Rotary Dude Join Date: Feb 2008 Location: Pelham, AL Posts: 319 Rep Power: 18	Just as Jeff mentioned, support one of the forum sponsors: http://www.rotarycarclub.com/rotary_...ighlight=turbo