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4jb1NA rebuild to 4jb1T

Getting the best performance from your Isuzu, the in's and out's

4jb1NA rebuild to 4jb1T

Postby mackhinz » Thu Apr 14, 2022 11:27 pm

Good day, I recently bought 4jb1NA, I thought that having turbo is the only difference from 4jb1T. But upon deeper search I found that non turbo has higher compression ratio. What parts do I need to replace in my current engine to make it 4jb1T spec? Aside from changing injectors and injection pump? I want to make compound turbo setup but I think it will not possible with my current 4jb1NA. Please help me. Thank you
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Re: 4jb1NA rebuild to 4jb1T

Postby geeves » Fri Apr 15, 2022 5:19 pm

I think pistons and rods which will be weaker
Sanding your knuckles before starting work can help. That way you cant skin them
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