MIVEC 4G69 Head on 4G63/4 Info?

[Canadian_CD9A]

For MIVEC, Kiggly sells (sold?) a kit to do it. You could probably adapt an HKS V-cam/Valcon kit too; they made one for Evo 4s, and I believe you can run one with a standalone controller instead of a full F-con V setup. There is no exhaust timing modification available, but intake timing usually yields 2x the results that exhaust timing does anyway. Regardless, variable timing on the intake cam has proven to be very effective on DSMs (particularly auto cars). For intake manifolds, I would think the new Magnus cast manifolds can come close to duplicating the Cyclone velocity/power in the midrange, but outperform anything else top-end.

 

[bling5tatus]

^^Smart man.... I've had my eyes on one of those magnus cast manifolds for a while now. I never saw the kit that was sold for converting to mivec.... but from my understanding it involves drilling into the oil galley in your head in a spot where there was no hole from the factory. The cam gear needs to be fed oil pressure to work right but that's as far as I know on it.

It's worth noting that it's DEFINITELY not something you're going to do without a ton of work (potentially "impossible") using the 4g69 motor in a DSM... or head off that motor for that matter. It's a lot of work to get a dsm head converted to mivec that I wouldn't trust to just anyone in the garage with a drill and some head building experience.

 

[ThunderChild]

The other option is use an evo9 head on a 4g64 block like @JayRome did, then use evo9 ecu/harness for control. It would put the intake and exhaust opposite front-to-back, but when you're going custom, why not?

With a 4g64 block you shouldn't have to fill as many, if any, drain back holes on the block.

Plus, then you can easily use evo ts turbo and other parts.