In the wake of yet another thread where an LS grenades an entire section of sleeve wall, I thought of something interesting.. I've seen nearly a dozen recent photo's of people knocking out entire section of the sleeve walls in these LS's but not a single B16 or B18C1/5, hell not even a D-series. Now I know the LS is a rather popular motor for people in the game thanks to it's lower cost and because of the sheer number of LS's laying around, but even thinking back to the past 2-3 years+, I honestly don't recall seeing a single thread where somebody popped a sleeve on a VTEC B-series.

Now why do you suppose this is? It's always been my understanding LS's were casted with the same sleeve liners as VTEC blocks, even D-series, so what esle could be attributed to all these failures? Could the greater side loading forces of the LS stroke be weakining the walls enough in higer hp apps? Or is it the greater timing (higher peak cyl. pressures?) needed on the less effiecient LS heads for optimal power? Anybody else give this any though, I'd like to see what other ideas are floating around out there.

 

prolly guys with GSR's and type-r's dont wanna push there engines as roughly as the non-vtec/ls crowd because there alot more expensive to replace?

just a thought