Originally Posted by
ThirdStrike
I have the Newsouth ones. The reason I went with those is because it was alot easier to seat and thread a single gasket than several layers. Once you apply some rtv to the mating surface, the whole thing starts sliding all over. It was tricky enough just to get that single gasket in place without any mess.
I also spoke to the guys at Newsouth before buying it and they explained how this gasket has the same properties as a phenolic gasket but, has a little give to allow even sealing. That was a big plus to me. It just seemed like the multi-layer design would be more prone to leaking under high boost scenarios.
I've had mine on almost a year now and it's rock solid. As for reduction in temps, They claim as much as -30F. I haven't seen that much. I was able to see about -20F from before the gasket. This was on a Stage 1 chip on two 90F days last summer.
Before the gasket on a 90F day, my IATs read 62C or 143.6F.
After the gasket on a 90F day, my IATs read 50C or 122F.
This was based on a 3rd gear pull with a hot motor on the same stretch of flat road.
As for being stage 3 now, I haven't seen a 90F day yet, but I have already seen 130F from the same 3rd gear pull on that road in only 70-72F weather. I need upgraded ICs but, at least the gaskets are trimming a small bit off until I get some.
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