Why M90's are not a good idea.

[Spaz]

^yeah the JR manifold is a HORRIBLE design with restrictions everywhere.... even the inlet neck is a killer... let alone the rest of the ENTIRE kit

[Rbsjnh]

The Cte manis even when ported suck they usually end up with in consistent flow rates, which requires band air tuning.

Usually look like

325 315 310 350

My individual cylinder trim would be considered a mockery for any true engineer

[Rbsjnh]

ideally, you want the intake runners to all be the same length, something not available right now

this is an rsp manifold, but by design if it was useable it would dominate the market

[Rbsjnh]

I have my own design which when funds permit will be made by synapse motorsports in ny

[Spaz]

I have my own design which when funds permit will be made by synapse motorsports in ny

interested in any info sharing

[Rbsjnh]

honestly its very much based on the rsp from honda.