FE Power Forums

FE Power Forums => FE Technical Forum => Topic started by: MeanGene on January 15, 2024, 09:58:23 PM

Title: Comp 938-16 springs
Post by: MeanGene on January 15, 2024, 09:58:23 PM
Somewhere along the line I have accumulated a couple sets of Comp 938-16 valve springs, and trying to nail down their usage. They seem to be an oval-track solid roller spring, I've seen some usages for around .660 lift. Has anyone used these, and what are their limits for cam size and RPM in a large-valve FE ? Can they also be used on a higher lift solid FT cam with tool steel lifters? Thanks
Title: Re: Comp 938-16 springs
Post by: blykins on January 16, 2024, 08:52:41 AM
You’d have to measure one and see where it binds up at.  200 lbs seat and 515 at .650” lift is what’s advertised.

Too much, IMO, for a flat tappet and tool steel lifters.  Would work for a steel cam and DLC coated tool steel lifters though.
Title: Re: Comp 938-16 springs
Post by: MeanGene on January 16, 2024, 10:40:44 AM
Thank you kind sir- yeah, that's what came up on a few roundy-rounder forums for lift, mid to high .600's. Sounds like a good job for my "new" Intercomp spring tester  ;) I have a .687 solid roller, sounds like they would match up well
Title: Re: Comp 938-16 springs
Post by: blykins on January 16, 2024, 10:53:26 AM
Too much lift and not enough spring load for a solid roller with that spring. 

That spring would work with a limited travel hydraulic roller, but probably not much else with an FE due to valve weight.