Hi guys i have done my first mods HKS 76mm turboback exg,HKS air filter,ecutec,feredo 2500,h&r springs going to put pics soon but i need help for cam choice i have 2008 evo9
can not decide cossy m2 or hks 272
and can not decide brian crower single valve spring retainer kit(some people say evo9 springs are different from evo8)
should i buy just cossy springs or should i buy brian crower single valve spring rateiner kit ?

need an answerrrr

SEARCH!!!!!!!! AMS did a cam shout-out, If you would've used the search button you would not have this question.

i searched it ofcourse looked at ams test too but that is for evo8 i need a help for evo9 hks or cossies come on guys ?

Did you just say you have a 2008 evo 9? Anyways.......

https://www.evolutionm.net/forums/ex...m-pricing.html

sooo if you have a evo 9 (2006) i would go with the cosworth 272 mivec cams... IMO they get more power then the HKS

if u have a 2008... well ur guess is as good as mine...

Does that turbo have a 76mm inducer, or exducer? A general rule of thumb, the larger the turbo the larger the cams.

kelford 272's GSC S2's or Cosworth M3's don't bother with HKS 272 or M2's

It all depends on what turbo you're running or plan on running. Some listed above might be too aggressive for a stock turbo. The BC valve springs/retainers are great for the price! I run them myself.

coming from a proud owner of kelford 272s. their freaking awesome... spool up on my 35r is pretty good, and my tyno sheet showed me still climbing at 7.6k RPMs... now i just need springs and retainers so i can rev up higher!!!!

That's the thing, they are great cams for larger turbos such as the 35r or equivalent. I wouldn't put them on a stock 9 turbo set up.

i ran the cosworth 272's on my car... were nice and agressive, without taking the street driving away

2008 evo9
my firsy turbo will be hks 3037 if i ll get bored of that change with hks3240 closer to 35r i thing .
do i need to port polish head too?because there arent any talented guys araund here to do it . if you say send it to ams or tomei it would be so hard because of shipping and custom problems .
wainting for opinion

I got cosi's 272 in mine right now making nice power and idle is stock feeling , they comming off this week for an upgrade for sale soon