Got car up and running again went for hard run and come to stop and see smoke and smell im like fire extinguisher out and ready no fire just turbo melted the paint off the chassis

Just after ideas on this realy ive had a quick search but no luck

Ive got few days to clean the flaking paint off

 

Woah! Always a scary moment when you whip out the fire extinguisher.

I'm guessing you are single turbo? Some kits will come with heat shielding for this purpose, others you have to supply your own. There are a lot of products out there that can be used to block heat on the paint side or to wrap your turbo to keep the heat in.

DEI makes a lot of stuff in this department. You may want to consider shielding other things in the vicinity as well - wires, LIM, hoses - those turbos can get toasty toasty.

 

yes, the DEI reflect a gold should be the fix for this. covering that part of the shock tower in it should be enough to shield the chassis. a PTP turbo blanket would be a good investment as well if its getting that hot...

 

Ive taken pic of how close it is lol


Them turbo covers can they make the turbo housing crack ?

 

Wow, that looks really close... No wonder the paint bubbled off.

I think there has always been the thought that the turbo blankets would cause the turbine housing to retain more heat and make it crack but I don't think that makes much sense.

I was always under the impression that manifolds and turbine housings crack not because of the high temperatures but more due to the differences in temperatures of different sections of the part. So if everything is heated and cooled at exactly the same rate, then the metal will expand and contract evenly and nothing cracks. Now, this doesn't really happen in real life, but slowing the cooling of the turbine housing (like with a blanket) would seem to me to make for a more even cooldown and prevent cracks rather than cause them.

As far as heating goes, the turbine is gonna heat up super fast no matter what. Like your poor paint found out.

 

Very nice explanation never thort of it like that

Is there any down side to the turbo covers ?

I should realy get one

My plan was to make a alumminum plate to go around the turbo so the only way heat could go is up out the bonnet vent like a u shape

Also ive seen them cheap covers set on fire few times on others cars on dyno i always thort they were all like that

But think im getting a proper cover now

 

I don't know of any downside with the turbo covers (except for expense) as long as quality one is used.

So DEI has said this regarding the turbo blanket/shield retaining heat:
"If you have a non water cooled turbo, you may want to skip the shield. Or have a turbo timer on to dissipate the heat when you shut the car down. The turbo timer will cool the turbo after the vehicle is stopped and reducing the chance that the extra turbo heat will damage the housing. For liquid cooled turbos you should never have a problem with the extra heat inside the turbo. We have race teams we sponsor that run 3000 HP twin turbo drag cars and race cars that run our shields all day long and do not have heat damage issues at all. And keeping the extra heat in the turbo is what the shield is designed to do."

I think the cheapie eBay ones have a tendency to catch on fire so, in this case, like many, probably better to stick with the good stuff. Oh, and make sure you don't any flammable liquid on there (oil, etc) because that can and will definitely catch fire.

Good luck whichever route you choose, heat shield or turbo cover.

 

I'd heat wrap the downpipe as well. It might be hard to reach if you don't take it off, but again any decent amount of heat shield wrapped would help.

 

So i went searcing for a desent turbo cover local but all i could find was cheap looking covers

I need somthing for now so i cleaned up paintwork and used hi temp paint
Then made a 4mm thick aluminum plate bolted with 1x10mm bolt

See what happens in few days on dyno