Originally Posted by GSR-Papi
Titanium retainers ARE better for heat dissipation, they are also lighter. Light valvetrain is better, and boosted engines run much hotter than NA setups, that's modding 101 right there. The "increased friction" high lift cams create on the valvetrain is minute compared to the super high cylinder pressure created in a boosted engine cylinder, and therefore heat.
99% of NA setups don't need aftermarket retainers, the only thing they'll do for you is up your bling factor.
I may only have 12 posts on this site, but I'm no newb.
So a 13:1 compression ratio N/A motor doesn't create super high cylinder pressures? A 9500rpm N/A motor puts more friction on the valvetrain than a boosted motor 8000rpm FI motor does, especially when high lift N/A cams are being run.
I don't know where you are getting this idea about a forced induction valvetrain running hotter than a high compression N/A valvetrain. It may be the case when running a ton of boost with high lift turbo cams, but with basic turbo setups like mine, it is definitely not true.
I'm not saying that you are a noob, but what you are saying doesn't make sense to me especially considering I have a boosted motor.
I agree that aftermarket retainers aren't necessary, but any measure to reduce friction (heat) is a good idea, especially when everything is taken apart.