MarineSniper217 Posted November 25, 2008 Share Posted November 25, 2008 Ok, so I got a D16z6 completly stripped down in my garage. I saw a full rebuild kit I want to buy for it, but it says it can come with oversized pistons upon request. Now, boring out the block only costs $200 too. What im looking for, is what kind of performance gain can I get from upping the piston size? I have had a friend who has a Del Sol tell me not to do it. Im just wondering if its worth doing. (People who have done it only please, I would like results, not speculation, Thanks!) Link to comment Share on other sites More sharing options...
..SSR.. Posted November 25, 2008 Share Posted November 25, 2008 Waste of a rebuild if you don't freshen it up with a bore and new pistons. Power gained won't be from the marginal bump in displacement, but from a better seal. Link to comment Share on other sites More sharing options...
MarineSniper217 Posted November 25, 2008 Author Share Posted November 25, 2008 Not that, thats just honing it, im probably getting that done anyway. But boring out the walls for like .010 bigger pistons. Wondering if thats worth it, or if it actually decreases performance from too much rotational mass. Link to comment Share on other sites More sharing options...
Hondahunter Posted November 25, 2008 Share Posted November 25, 2008 Not that, thats just honing it, im probably getting that done anyway. But boring out the walls for like .010 bigger pistons. Wondering if thats worth it, or if it actually decreases performance from too much rotational mass. WHAT? Do you know what boring is? Link to comment Share on other sites More sharing options...
..SSR.. Posted November 25, 2008 Share Posted November 25, 2008 No such thing as .010 over pistons. The only real way to do a rebuild is overbore with new pistons. Weight difference is not anywhere near enough of a difference to make a difference in power, and I doubt you'll be revving over 9,500 to see a difference anyways. Link to comment Share on other sites More sharing options...
MarineSniper217 Posted November 26, 2008 Author Share Posted November 26, 2008 Pistons with Piston Ring Set (We have Standard or Oversize .020" = .50mm) This is what the kit said. THis is why I said im not sure about getting them, because if they wont make a difference, I wont waste the money on the block work. Link to comment Share on other sites More sharing options...
..SSR.. Posted November 26, 2008 Share Posted November 26, 2008 Like I said, the difference isn't from the added displacement, it is from the ring seal. A fresh bore with new pistons will seal better than a stock bore with new rings. Link to comment Share on other sites More sharing options...
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