evolvd276

iTrader: (5)

hey guys i was wondering your opinions on the kelford 280/282 cams the part number is 9-177-d for the mivec what is this going to move my power band for the 2.4 i am building

still*boostn

iTrader: (15)

I would look into S2's!! what power are you goig for?

apagan01

iTrader: (299)

i dont trust the reliability of the kelfs.

Cossworth, Jun or GCS's

smoothy

iTrader: (1)

HKS 272.... Im kinda partial to them. Great midrange and screamin top end

awdordie

iTrader: (1)

+1 on this.

evolvd276

iTrader: (5)

im probably the first not to have a goal except make power and see what it will do , but i might still have the stock turbo when finished but hopefully doing and black or red with the build but want to add what i can now . so far my build will be
2.4
map billet rods
9.7:1 pistons std. bore
100 mil crank
the kelford 280/282 cams
L19 studs
PWR enterprises head gasket
dual valve springs ti ret.
i already have aem ems
what main studs should i get

boarzhead

EvoJoeIX

iTrader: (16)

280/282 cam is to big for what your looking to do. its not gonna give you a solid powerband gain.

id go with S2's or the kelford 272's

evolvd276

iTrader: (5)

what turbo would it be good for and , will it run alrt with the stock turbo for the mean while if need be

lilgunz

iTrader: (1)

I would agree with the S2's have heard alot of people going with them and liking them alot, if I would have kept my VIII I would have put these in replacing my Brian Crower 272s. but didn't and ended up selling before, but those are the cams I would have and should have gone with in the first place.

EvoJoeIX

iTrader: (16)

they would be good for a 35r or bigger
on a stock turbo its going to lose mid and bottom range power and since thats all the stock turbo is good for

its going to move the power curve way to the right on a dyno chart

grillpt

iTrader: (24)

ARP's.

+1 Kelford 280's are too big for your app. I would suggest GSC S2's, Kelford 272's or FP4R's.

evo8426

iTrader: (27)

not the highest power producing cams for an 8

heres a link for you evo 8 guys to look at cams
https://www.evolutionm.net/forums/ev...-cam-test.html


for a evo 9 i would pick either the s1, s2, kelford 272, or cosworth m2

dabeast

those are some big cams man. i would think about 272's if i were you. also i would look at the ams testing that was posted above me. that should help you out a lot. i personally like the gsc s2's.

BLKCarbonEVO

iTrader: (2)

Okay, I'm going to go ahead and murder board the **** out of this thread!

How do you like the "screaming" top end on my HKS dyno below? I even had a 280 exhaust cam

Really you guys like the HKS Cams? THEY ARE ****ING WORTHLESS!!!

Before: HKS 272/280 combo
After: Custom Stroker GSC cams only sold by English Racing

Attachment 338718

As you can tell I made over 150hp than the HKS cams at 8000rpms... GARBAGE!!! Boost was also .5 less, timing didn't change, and AFR was the same. GSC or go home. If you build a motor do it right the first time. BTW that 614hp you see is wastegate on my stock unported FP Black

1) Stock turbo on the 2.4 will fall on its face at 5000rpms. Stock turbo falls on it face with the 2.0 and a 2.4 flows 20% more air than the 2.0
2)If you can afford to get better rods than the MAP please do. Their is a new GSC H-beam that is rated at 1000hp and a lot lighter than MAPs rods. If you don't want to spend more the MAP rods are not that bad; they are lighter than turbo tuff I Beams and use a large rod bearing
3) Honestly I would not get the PE Head Gasket. I blew mine and went back to the cheap Cometic HG and have not had any problems.
4) Good choice of staying std bore. If I did it again I would have too. Helps the head gasket seal better since you have some extra meat between the cylinders.
5) Look into the Kiggly valve springs. I personally think they are the best on the market! Also look into getting the Kiggly HLA and AMS Oil pan or get BR to mod your stock pan so you don't have oiling problems.
6) If you are on 92 oct or 93 oct just do 10:1 pistons. Don't bother with a 9.7:1
7) Have you thought about doing a LR 2.4?


The Kelford 280s are not to large, smaller than what I would ever would put in my 2.4. He could honestly do 288s if he wanted and they would idle like 272s. With the larger 2.4 you can get away with much larger cams than the 2.0, remember I said it flows 20% more airflow so you have to have large cams or your topend will be horrible. refer to the graph above with the HKS 272s. With your 2.4 flowing 20% more air idle on a 288 cam is 100% streetable if not better than most cams on the 2.0

Also I would like to point two things out.

1) The AMS cam test was on a VIII not a IX. The OP has a IX which is a completely difference animal.
2) Every single cam in that test has been updated at least once, I know GSC has been 3 times since and would perform nothing like they did in the AMS test.

Okay off my soap box; and if you have any questions, fire away!

Mikey