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B20-CRV VTEC - Why it Blows.....
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<blockquote data-quote="shiroitenshi" data-source="post: 3370456" data-attributes="member: 27518"><p>White smoke + missing engine oil could be gasket/valve seals, but due to the PCV setup, oil loss is always common in B series engines, it's just a matter of how much.</p><p></p><p>81.25mm is considered an oversized piston. I think P30 (stock B16a) pistons also available, but perhaps your mech chose those pistons because they give more compression, and has the coating at the skirts. (note that Type R pistons have coated skirts)</p><p></p><p>Due to the flexibility of the original honda ECU, (esp. the P30 with the knock board), you can run just fine even with the added compression. But if you have at the very least an adjustable fuel regulator, it's good to bump it up from the B16A stock pressure of 2.0(2.5 without vac reference) by adding +0.2-0.5 bar to the stock pressure.</p></blockquote><p></p>
[QUOTE="shiroitenshi, post: 3370456, member: 27518"] White smoke + missing engine oil could be gasket/valve seals, but due to the PCV setup, oil loss is always common in B series engines, it's just a matter of how much. 81.25mm is considered an oversized piston. I think P30 (stock B16a) pistons also available, but perhaps your mech chose those pistons because they give more compression, and has the coating at the skirts. (note that Type R pistons have coated skirts) Due to the flexibility of the original honda ECU, (esp. the P30 with the knock board), you can run just fine even with the added compression. But if you have at the very least an adjustable fuel regulator, it's good to bump it up from the B16A stock pressure of 2.0(2.5 without vac reference) by adding +0.2-0.5 bar to the stock pressure. [/QUOTE]
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B20-CRV VTEC - Why it Blows.....