Ok so i'm at a toss up both of these camshafts obviously make great #'s

Do the Kelford 272/272 or 276/272 require new valve springs

I know the GSC S2 camshafts require /recommend upgraded valve springs.

Would this be necessary if the head wont see 8k rpms? Not a problem doing it, just trying to figure if I need to save and wait another month. I really want to drop some in here.




I dont want anything lower than 272* my last set of S1 cams did not please me so i need something with more of a lope

 

Not necessary, but I see it as insurance.

 

Upgraded springs are highly recommended, even if you wont push it to 8K. The amount of travel the valve is going to do is quite different so the newer springs will make sure the vavles stay seated and open however long the cams is designed for.

 

Yeah, I figured that, probably might as well just save the extra 350$ and swap them out at the same time. Any personal preference on either of these 2 camshafts? I've been kind of partial to the GSC S2's but I've noticed alot of people running the Kelfords.

 

Kelford 272 owner here and I'm quite pleased with them.

 

im in the same boat as the OP im looking at the kelford 272 cams and i would like to know if upgrading springs is a good idea. im trying to build a reliable evo.

 

I learned the hard way. Put upgraded springs in the first time. You will just end up having to do it later and it can cause a bunch of damage.

 

Upgrade your springs in either of your choices. I had kelford 272 in one evo and gsc s3 in another. If the decision is between 272 or s2 then for me I would choose the s2 but mainly for the price. There is a cam comparison on the site somewhere and in my opinion, the difference is in the price.

 

Gotcha, I'll just stick with GSC cam's since that is what I went with last time.

Any recommendation on springs? I've been looking around is dual springs completely necessary or just added support?

 

I guess it depends on your end power goals and what rpm's you plan to run but I still always recommend dual springs. I ran supertech dual valve springs because I intended on high rpm application. If you don't plan on going above roughly 8500 rpm's on a given run then you would be fine with beehives. Even running a 2.3 or 2.4 though, you can still run the risk of entering into the danger zone (8200ish - 9000ish) Realistically you can get them both at the same price (springs, seats and retainers) so why not be a little safer and go with dual springs. just my .02

 

I got the Brian Crower single 95# springs with titanium retainers. They can be had for around 200. You will read some bad reviews but alot of good. I am very happy with them so far.. 6000 miles and I have run them to 8 grand logging. The quality and finish looked great. I also run the GSC S2 cams.

 

Nooo. stay away from BC anything. 70% bad vs. 30% good is not really good odds when you're talking about your valve train.

 

And just how do you know it's 70/30 ? LOL

Just one thread...
https://www.evolutionm.net/forums/ev...vesprings.html

 

So it's not and exact science but we all know the history behind BC products. They win some, they lose some. Me... I'm not willing to bet my head on it.

 

This is on a stock 2.0L car wont see above 8k anytime soon, wont be going past that until later on when i build the block.