Ok, I know that most people would upgrade their head studs? Some says that it requires valve spring upgrades too. Is that necessary?

 

no, not even withthe 280's . Why? It has stock lift or close to it.

 

They are recommended but not required with the HKS cams.....

but they SHOULD be done for added safety when revving past 7.5k rpms...

 

They Should Get Done But I Havent Done Mine Yet, Plan To In The Near Future

 

Go and do it without upgrading, blow some crap up and lift some valves and smash some pistons and get back to us and let everyone know how it went.

BTW, your tuned by Tamer and so am I he knows what he is talking about, talk to him and get his .02 cents and he will most likely tell you to do the upgrade, your playing with fire not doing it.

 

I've been tuned by Dynoflash, turbotrix, and KevinD. All of them said it's not needed unless you rev very high. I.e. beyond 7800 RPM. I've driven 30,000 miles, without upgrading anything head wise, with the exact cams and I'm fine just like countless others.

 

honestly if your going to upgrade cams bro, do it right the first time. No you dont need to but I would.

 

i' have hks 272 with stock valve springs and stock head studs and i been fine for 50k miles and so have countless other people

 

The stock turbo runs out of steam at 7k RPM. Why anyone would rev higher than that is beyond me.

 

yea im getting mine put in soon but i dont plan on doing springs i shift before 7k anyways

 

I don't have experience with the eVo cams...however, I have built ford motors before...When putting a cam especially with with more aggressive ramp rates and durations it was always recommended to upgrade springs for simply because some cams require a stronger seat pressure...not sure how the stock pressure compares to the stock cam vs HKS...but that was something that was important...you get more out of the cam with proper springs...and you don't risk valve float if you accidently over-rev the car...so it may not be neccessary per say but its nice to have a piece of mind knowing that your safe especially when so much damge can be caused by negligence...just my $.02

 

with HKS 272 cams you don't need springs and retainers unless you plan to rev past 8k rpm... had mine for 20k miles no problems, there are plenty of people running the HKS 280's with no problems also...

 

Don't see the need for HKS when DKS is offered.

 

Thanks a lot for your comment guys!

 

ehat ya gonna do, stock or build it?