10:56:45am, Sunday, May 19, 2024
JD 70 2 cylinder compression question
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Registered: 07/22/2014 Posts: 197 |
I need to rework a JD 70 gas engine. The stock compression ratio is 6.15 to 1. The 2 bangers were low compression due to inconsistent and low octanes of fuels in their day. But that’s not the case now. Can I go to lp pistons with a compression ratio of 7.3 without needing premium gas?
Thanks in advance. |
Re: JD 70 2 cylinder compression question
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I made pistons for my dad's 60 with a power block at 7.5:1. It will spark knock on 91 octane, but runs fine on 93 octane. |
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