I find a set of JDM type S camshaft for a reasonable price. And I was just wondering if it possible to run it in a stock H22A1 motor without having to change the valve, retainer and etc.........???????? Will it due any damage to the motor........?????? Any suggestion or advise........is appreciate it............

 

i have a friend who did it, not sure if he upgraded the valvetrain or just bought new OEM ones, but it runs and works well on his fairly stock h22a.
hope that helps somewhat.

 

FAQ's are your friend. You gotta change the valve train.

 

Alrite, Thanks guys....

 

PS Don't waste your time.

 

how much more power are you looking at for type s cams? and where would you go about finding a new valve train?

 

will used cams require a break in period in your engine?

 

As in before they BREAK your engine? Answer is NO.
Search around some though, there have been some issues blamed directly on installing TypeS cams in NON TypeS heads.

 

They will eat your rocker pads up over time. There's a thread on this here on HT.

 

^^ I believe you can only install them in the JDM motors.. not the US? (without eating rockers) somebody correct me if wrong.

 

IIRC it has something to do with VALVE ANGLE 45* vs 60*
I never spent much time reading into it after seeing 3-5whp gains that criss cross in the powerband compared to stock cams.
People have installed them and HOPED for huge gains.......There's NO logic to it because a PTS/ATR only makes about 15-17whp more than a Black-Top H22 and the extra power comes from Cams, Pistons, Head porting, Intake manifold.

 

since the skunk 2 have more lift wouldnt they damage the rocker more? and i believe i have a jdm prelude but how do i know for sure if its jdm or usdm>? i did some reading and MikeLuder seems to be right... Though there is not a common consensus that even on a usdm that type s cams will wreck your engine.. though it has happened to some

 

I ran type s cams on a jdm head for about 3 years with no incident. The type s head has 2 angles cut into the valve seat of the head. The angles are 45 and 60. This improves airflow.

 

type S cams are a waste of money. You will not see the full benefits on a stock block and they are not the best cam on the market either.

If you are going to do camshafts choose the cam shaft that would suit your long term goals rather than putting something in your car because it is "Type S".

 

I agree. Like Nirvtec stated, The Type S 220 hp also comes from Higher compression, lighter pistons, ported/polished head, polished IM, larger TB, and ECU tuned differently. Not just the cams. Good call guys.

 

Yeah, I'd go Skunk2 Pro camshafts. I've seen some good dyno graphs with Skunk2 cams & simple bolt-ons here on the net.

 

IMO you'd be thrilled with S2 Stage1s even with a stock valvetrain.
I have run this setup on my DD for ~5yrs/70k miles tuned with a VAFC.

 

where were the gains with the S2S1's? across the range/up top?

 

Although I have been accused of being incorrect, power was gained from 3500-7500rpm with the stock VT and untuned cam gears. 12-15whp/10-12tq on my JDM H22A
I guess it could very well be NOT having a very good tune Pre-S1Cam and then tuning the whole setup.....although I don't think this is the case because we compared it to a stock cam'd H22 on the same dyno.
Very worthwhile for the $550 I spent........considering my h/e combo was only worth 15whp/9tq at twice the price.