do they carry this at Pepboys? would I have to go to home depot? this is for downpipe purposes. thanks.

 

Never heard of such a thing. What are you trying to do?

 

pepboys has it

 

use some sealant on the turbo side

right on, thanks.

 

Hmm. I think it will only be a bandaid. A good gasket is the best bet. Do your Greddy's not work for some reason?

 

Ultra Cooper....Napa has it. It's the highest temp sealant they carry.

 

I have APS and I'm not sure if they make gaskets for that side.

omg.. I was just straining my brain, trying to think what the hell the name was (NAPA)... being a psychic is going beyond the call of duty- customer service

just got one (650deg) I guess.. wonder if that would be enough..

 

APS does not use gaskets on their hotside turbo connections...just good'ol sealant. I can't remember the heat range for ultra copper RTV.....since I am not at the shop at the moment. I have no life....

 

I thought ultra copper was 750F

 

Probably not, but generally the Flange to Turbo mounting points are machined pretty tite. Ultra Copper works great though and once its compressed its not going anywhere.

I use T442 RTV Silicone that I buy at International Harvester, that they use instead of gaskets on their Diesels. Shelf life sucks, and if you get some on your inner arm for example, it will take ur skin with it when you peel it off. But it seals like a MF, Its awesome stuff.

 

^I used the RTV sealant also. I used it to seal the two bolts on top of the crawford plenum which are prone to leaking. Its pretty dangerous stuff. My leg was roasted after i spilled it on it when I broke the metal cap lol.

 

Ya, no joke, I smeared some on my belly and when I noticed it an hour later and peeled it off, It was like I got splashed with hot grease, skin was GONE !!!!

 

ya the ultra copper is the way to go. if your flanges are mostly smooth, just a small bead of it will work WAY better than a gasket. it smashes into a paper thin film that is under compression, thus making the heat range of it withstand alot more than advertised. the advertised heat range is if you use it to actually fill an open gap.
i use it on all of my turbo/wastegate flanges and not one has ever leaked!

 

wtf are u doing messing with ur car with no shirt on.. sexist pig.

 

permatex 101BR ultra copper gasket is what you are looking for.

 

I get Horny when I work on FI

 

I don't think anything silicone RTV related will work for down pipe purposes. Even the copper... The silicone will decompose/vaporize and leave some copper dust behind.

I couldn't say how long it would last, but the mufler repair kits with the Sodium Sillicate paste is probably your best bet. Just use the paste, not the fiberglass mats with it. Sometimes you can find tubes of it without the mats.

It will set in 5 minutes and harden in about 30. At least it will tolerate the expected temperatures without docomposing. Its good to about 2200'F.

This will only work on small leaks.

 

^^APS and Garrett recomend the sealant^^

We have taken APS kits off cars after thousands of miles, and the sealant is still pretty much intact. In theory, two perfectly machined surfaces do not need a gasket at all. I believe the sealant is just an extra precaution.

 

Thats interesting, Where is this stuff available ? Sodium Silicate used to be used to plug block cracks via the coolant.

I was staring at this TN I have on my desk this morn, thinking about this thread and was about to consider using a good coat of Anti Seize between the flanges just for the heck of it

 

I've used the sealant on both side of the APS 3.5" downpipes. Put it on, let it dry a bit (tightening the bolt right away, will have it all seep out), then tightened the bolts. I didn't hear any leakage and it sounded good. when the stuff dried, it was hard and rubbery. My Old downpipes had the same stuff, but it wears out (had a leak later on, on the turbo side). I think I'd trust a gasket over this, but I think it'll hold for now.