turbo > cat bolts?

[Ameer Antar]

I've used 316 (A4) grade stainless hardware and they've held up on the turbo
and wastegate just fine. I used regular old 304 stainless (A2) on the cat. No
problems at all. Just make sure you don't use an impact wrench on these things.
Is your cat directly bolted to the turbo? Strange setup, but if it is,
definitely go with the A4 grade; these are supposed to retain their strength in
high-heat situations. If you need any I just may have some left over.

 
-Ameer 


-------------------- Original Message --------------------

> Message: 5
> Date: Mon, 19 Mar 2007 22:36:28 -0700
> From: thejimrose [thejimrose at gmail.com]
> Subject: turbo > cat bolts?
> To: quattro at audifans.com
> Message-ID:
>     [298352bd0703192236r52a5da58u51053784b8012d63 at mail.gmail.com]
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> anyone have thoughts on what to use for the bolts to attach my turbo to my
> shiny new high flow cat? the stock stuff is grade 8.8 black oxide. pretty
> standard. i'd like to step to stainless but it seems SS bolts are a little
> softer [ive broken a few].
>
> i got some SS nuts, bolts + washers from the local ace, but i NEVER want to
> do this job again so if there's a best grade or hardware to use, i'm al over
> it.
>
> thanks
> jim
>
>
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>