I am a new Optimax owner and am already curious to what high performance modifications are available to these motors... I am aware of the Simon Lightened Flywheel and am looking at doing this as my first mod. Has anyone had any experience with this product? What other options are available for these DI motors that are reasonably priced? I know Simon can build a 335HP motor, but I'm not looking for that much power, nor do I have that kind of budget.

I am looking more toward lightened flywheel, computer mods, and so on... I haven't herd anything about exhaust tuner mods on these motors though??? What are the more budget oriented options available for these motors and what kind of performance gains are seen? Also, I believe the rev limiter is set at 5750 on my motor... This seems kind of low to me. Can this be raised safely to yield more performance? If so, how many RPM's and what kind of gains?

If many of these mods are available for the XS and Pro XS 3l motors as well, maybe a similar modification thread could become a sticky??? I think it would be very useful to many who would be open to budget minded modifications. Plus, I believe Simon is a sponsor. Thanks for the replies


Modified by t_nipper_74 at 11:29 PM 6/9/2009