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Old 05-22-2020, 07:54 AM   #527 (permalink)
Ecky
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ND Miata - '15 Mazda MX-5 Special Package
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Quote:
Originally Posted by serialk11r View Post
So you're at 1950rpm at 60mph? That's pretty low. I think you would be better off with a K20 + M Factory 4.0 final drive. The specific torque output would be similar, but the K20 would be spinning a little faster, and it would do better in 6th gear at e.g. 50mph as a result.
I believe that's how LHT does their K-Sight.

I'd love to see how a K20 would do with a 3.4 FD, my engine is only around 20% loaded in 6th.

Thoughts on de-stoking a K24? The extra deck height would give a better rod:stroke ratio. I'd need longer rods. I think the extra dwell time at the top of the stroke improves efficiency, but it might also make it more likely to knock at very low RPM.

Last edited by Ecky; 05-22-2020 at 08:15 AM..
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