hey whats up guys, I have a b17 block with PCT pistons but am looking for more torque. Im looking into a B20 setup. Now I keep hearing about issues with the B20 sleeves. Is it imperative to sleeve this block or can these stock sleeves really handle a good N/A setup? looking into something like 11.5 compression like I currently have with my B17 and PCT's. Would I be able to run this on stock B20 sleeves with this BRAND NEW ITR head I just bought or do I definitely have to sleeve? Of course I would like to save money and not sleeve , but if it is absolutely necessary for this setup to be reliable then I guess I have no choice. I have searched but cant come up with any answers on where to draw the line with the stock sleeves and how much they can handle. I would like to go with the B20 and 11.5 compression, all new bearings of course, balance the block and go with my new ITR head and Skunk2 stage 2s and Hondata S100. should I sleeve or no? Money of course is an issue and this is a daily driven 92 GSR. Thanks guys. All help,criticism and advice always welcome. Thanks for your time


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come on guys

 

its always good to be safe than sorry

 

yeah he's right.... you want a good reliable build.

 

When you put that much effort and money into a motor, it is always good not to skimp on the block; at least that is my train of thought. Sleeves are insurance for your motor, and your wallet. Pay a little now, or a lot more later!

 

I have seen stock b20 sleeves crack in a mid 11:1 compression application. May have been from detonation, but it doesnt take much.

Also if you are going on a high rpm (8,000+) application, you should not even consider a b20 with out strong sleeves.

 

there you go you can never be too safe