Just bought the new WMW heat shield for under the scoop....

Gonna see if it makes a big a difference as the shields which cover the whole turbo area.....

I have a body color hood scoop and the warping is not quite as noticeable....What are some opinions on the body colored scoop over a chrome one??...My Mini also has a body colored roof, so I just dunno....

 

That same shield is available from the dealer under warranty. Had mine installed last month with a new painted scoop.

 

Dealer replaced mine under warranty with a CF unit. Have about 10k miles on the new one with no problems.

Beware an aftermarket shield. I know of one case with an aftermarket shield where the turbo died and MINI denied the warranty claim due to the shield causing excessive heat build-up in the turbo. Scoops are a lot cheaper than turbos.

 

Thanks for the info!

Did not know that. My buddy at the dealer did not tell me that when I asked the other day. I am def going to have to give them a call and find that out.

 

The OEM heat shield is part number 51-48-2-183-986.

 

I went by the dealer this morning and they said exactly what you said. I will return my WMW shield, and go with the dealer installed shield. My service tech did tell me though that I could only get the shield with a chrome scoop. Seems kind of random to me, but I do not mind going with the chrome. Plus I do not have to wait around for them to paint it.

 

^ I also have a body colored roof (Astro Black) and chrome mirrors and the chrome hood scoop just adds "the touch", in my opinion. I hope you like the chrome! Good luck with your new scoop. I get mine in December.

 

Does anyone have an astro black or chrome hood scoop? Warped is ok. I need it to return my leased car. My scoop is currently spray painted matte black to match the vinyl wrap.

Please contact me asap if you have one. geneesanchez@gmail.com

Thank you!
-Gene

 

My chrome scoop is bubbling at the back edge.

Called to have the laser blue re-installed - they told me of the heatshield fix - made appt. for next week. Then found this thread.......

Peeps at NAM's on top of it as always!

 

Get the Way Motor Works turbo heat shield, it is insulation that wraps around the hot side of the turbo and fits under the stock heat shield. It keeps the heat in the turbo, where it belongs and may actually give you a couple of horsepower.

http://www.waymotorworks.com/wmw-turbo-heat-shield.html

I work on large industrial diesels, every one of them has the hot side of the turbo lagged (insulated) for increased efficiency.

Dave

 

My 09 JCW scoop warped also. Went to the dealer and swapped it for a CF. The upgrade cost me $110 and well worth it. Plus in my opinion, I am confident that putting a piece of carbon fiber on the MINI increases the horsepower by at least 1. Anyone agree???

 

All replaced with new OEM heat shield yesterday. Got home, popped the hood and the heat shield was very hot to the touch, so much so that you cannot touch it for long. Guess it's doing the job......

 

I too had them replace the scoop with a carbon fiber unit and it has held up perfectly for almost a year now. I think I gained 1.34 HP actually

 

I probably didn't take the dark silver and the carbon fiber combined under consideration. I believe you are correct...1.34

 

 

Mine was wrapped when i got the car and the dealer didn't hesitate on fixing the problem, with in 72 hrs it was swapped with a new one and they said if it happens again bring it back; however they said only the chrome scoops gets the aftermarket heat shield not the others.... :(

 

Just to add my two cents:

I had my MCS in for its second annual servicing and had them replace the chrome hood scoop w/one with a heat shield. MUCH less heat, even to the touch after you drive it.

I also had them take care of the Death Rattle.

Why must I find out about such things on boards like these? MINI never cops to anything, just mysteriously says "yes" when you ask them to do it and is it covered under warranty.

 

I have the M7 heat shield and I'm very happy with its performance. The NM TitNM unit is nice and sparkly but it gets much hotter than the M7 unit with the aerogel insert. I also have the fiberglass M7 Ram-2 Scoop. I would recommend against any type that wraps around the turbo or attaches to the hood. The last thing I would want to do is Wrap a turbo.

 

Why is that?
Nearly every turbocharger I've seen had an insulating blanket on the hot side. I suspect MINI left it off as a money saving move.

Dave

 

I've got the OEM heat shield and it works just like it should.

 

It's not just a money saving move. I would guess that you have only dealt with turbochargers used in Heavy Duty Diesel applications. Heavy Duty Diesel engines such as Cummins, Caterpillar, and Detroit Diesel, operate under a completely different "heat management" protocol and have very different turbos when compared to gasoline engines.

Diesel engines utilize heat, and manage heat as part of their operation, they are essentially heat engines. Diesel engines don't have ignition systems like gasoline engines, they use heat generated through very high compression to ignite fuel. As a result, Diesels don't run well when they are not hot enough. Containing and conserving their heat is very important. Wrapping the turbo to retain heat is one way this is done. To protect against the damage that this would otherwise cause, Diesel engine use very heavy duty turbos that have beefy turbines with big bearings that have hugh oil supplies and cooling systems that allow them to endure all that heat.

Gasoline engines usually treat heat as a "waste" product that causes problems with operation and must be disposed of through various cooling systems or the exhaust. The high performance turbos we have in gasoline engines are very different creatures from the ones you are referring to. In order to avoid hugh amounts of turbo lag, give good throttle response, and provide the high performance we expect, these turbos are rather delicate, finely tuned little things. Heat retention is generally not a good thing. In the MINI's little turbo, the retention of excess heat cooks the oil that lubricates the little bearings an eventually destroys the turbo.

 

In regard to a shield attached to the hood... I don't like the idea of reflecting all that heat back down onto the top of the engine. Most of the stuff on top of the engine is plastic, like the valve cover, fuel injectors and cables, hoses, etc. Unfortunately, the way I see it, the stock or OEM heat shield is really a shield for the plastic hood scoop that sits on top of the hood, not an effective method of controlling the excessive heat radiated by the turbo. I like the way the M7 & NM heat shields completely block the heat from being radiated upwards but allow it to dissipate downward where the exhaust pipe goes. Much better design in my opinion. But as I said before, I have the M7 heat shield and I'm very happy with its performance. The NM TitNM unit is nice and sparkly but it gets much hotter than the M7 unit with the aerogel insert.

 

I have to disagree, Diesel engines are really no different from spark ignition engines, except in the way they ignite the fuel. They are both heat engines. Neither work well when cold, that is why there is a cold running protocol programed into our MINI's engine control unit

Besides, once the exhaust has left the cylinders, as far as the turbocharger is concerned, they are exactly the same. The only difference between the turbocharger on a large diesel engine and the ones on our MINIs is in size.

A turbocharger blanket will allow the turbo to spool up faster by keeping the the heat in the turbocharger rather than letting it dissipate as it would without one. A turbocharger is a heat engine, just like a gas turbine. Heck, it is a gas turbine! You want to keep the heat in, to improve efficiency.

I do work on performance cars, though as a hobby rather than as a profession. I am a Mechanical engineer as well as a Marine engineer, with 27 years of experience. I really know what I'm telling you.

Cummins, Caterpillar and Detroit diesels are way smaller than the ones I deal with professionally. I work on Sulzer, B&W, MaN & Wartsilla diesels as well as gas turbine engines, and steam power plants.

Dave

 

Sorry DneprDave. You have actually made my point for me. Your frame of reference is so far afield from what we're talking about that I don't think we have a platform on which to have a discussion.

Your statements are all theoretical and abstract. Yes, all combustion engines are heat engines, but they use heat in different ways for different things. I understand the thermodynamic principals involved. Yes, I understand the conservation of heat, etc. I'm a little concerned that you state that you know of what you speak yet you fail to consider a most basic fact of engineering... If it isn't designed to operate in a particular manner don't be surprised when if fails. I believe your error is not in the theory, but in the application.

I'm concerned that most if not all of the turbo systems you mention are very heavy duty low speed and super heavy duty very very low speed applications involving turbocharger systems that have been designed and manufactured to operate in a particular manner and under those conditions. And these turbocharger systems are provided with lubrication and cooling systems are necessary to operate in that manner and under those conditions. Not to mention attended by a team of technicians that are employed to constantly monitor such Power Systems.

I am sorry but the MINI's turbo lubrication and cooling systems are not designed to operate wrapped in a heat blanket. As a "mechanical engineer" I would expect that you would not make such a error. The primary cause of premature turbo failure in automotive application is bearing failure due to problems related to inadequate lubrication or overheating.

Go ahead and wrap your turbo and I'll use a heat shield.

 

No, you don't understand. All heat engines work on the same principles, regardless of size. It's simple physics. You obviously don't understand the thermodynamic principles involved. I've spent years studying, those principles, in theory and in practice. What is your background?

I do work on high performance automotive engines. I'm a car guy, it is just harder to get payed for doing something I love, rather than doing something that pays the bills.

The turbocharger on a MINI is no different than any other turbocharger except in scale. MINI turbochargers are more robust than many, in that they have water cooling, just like the larger turbos. You must understand, that the blanket only covers the hot end, not the central bearing or the cold side.

They are suited to have the hot end insulated, as are all turbochargers.

I'm not saying that wrapping the hot side of your MINI's turbocharger will give you many horsepower, but it will improve it's response and it certainly will not harm anything.

Dave