Quote:
|
Originally Posted by Chris Wilson
I have never seen an RB2* engine acually have head gasket troubles witha stock gasket, even at high boost, unless somehing else was amiss. I often wonder where this "need" for multi layer shim gaskets from expensive sources originated from...  |
I have seen a lifted head gasket on an RB26. 2+bar on 2530's, with direct port nitrous. Perhaps though something else was amiss. I chunked a piston on #6,but it lifted the head around #4.
Right around #4 there is an issue, like the block winds up a bit different than the head. Might be that two different metals thing.
Talking to Mr. Tamura, he says circuit use above 450 hp to use a metal headgasket. Another issue, that may be the real issue is the head washers cracking.