I have searched and could not come up with much. by the title I guess it's a little un-informative . . . Which brand/ duration cam would you get and why, be specific. ex; comp280s are rough idle but top end performance is greatly enhanced while being one of the cheaper brands. Revolvers help spool turbos quicker from what I hear. From what I have researched and read higher lift cams (jun, revolver) not only have higher hp numbers but increase spool on turbos. Is there any confirmation of this? Any input would be helpful. Thanks in advance.

comp
hks
tomei
revolver
gsc
jun
Brian Crower
Crower
XS Engineering
Cosworth Cams
Buddy Club

How would you rank these cams as well as has there been any research on comparisons on hp output on same engine testing greatest mid-top end hp increases, idle issues, dyno charts??

 

I dont know but im ordering comps tomorrow

 

I guess I can share my observations:


Cams: HKS 264/264
Paid just a bit over $500 shipped
These cams are solid(not hollow like stock)
Comes with polish lobes
Awsome spool up
Great power
almost stock iddle
great low and midrange

Not much of top end. Makes a bit less horse power up top than 272-272s etc.
Helped me to drop .4sec at the 1/4 mile track consistently

my .2c

Carlos

 

There is a lot to look for when determing which set of cams is going to be best for you. Whether you are building a track car, street car, huge turbo, small turbo... Do you want top end power, or do you want low rpm power. All of this effects which cams to buy. Before you do anything, you should call the company and find out what the duration is at .050 lift. Then compare durations between different companies. Cam companies like to advertise, so they will measure at perhaps say .020 lift, or maybe a different company will measure at .030. You want to make sure you are getting what you want out of them. Then look at lobe seperation angle, look at how much overlap you are going to have and what they are made out of. Turbo cars dont always respond well to huge cams, and big overlap. Personally, if i was building a street car, on stock turbo and would take it to the track every now and then I would probably go with GSC or HKS. If I knew that later on I would put a bigger turbo, and extensive amount of mods, I would use revolver or jun. Another thing to look at is what other type of mods you will need. With some of these cams you wont be able to maximize power unless you have valvetrain components and a nice tune, pref a AEM EMS or a haltech. Basically what it comes down to is what you are building the car for, long term.

 

I know I wasn't to clear on what I really wanted out of this thread but was looking for specs/info on cams. I'm fully aware of other mods I need or what would be best on a bigger turbo, but am looking for something smei-streetable but fully track worthy. Somthing that maybe helps spool a turbo quicker, still holds idle on the street with-out dying out and largest top end.

searching I onlt found one thing that caught my attention with cams, revolvers using a 20G vs hks & stock turbo. where the revolvers helpd spool the 20g faster than stock. I'm looking to be putting down around 400-500whp like my sig say most likely on a 50 trim or possible 20g-9 if things don't work out right.

Anyone have befor and after cam installation dyno graphs ? besides more top end, what else did you experience ?

 

Anyone? Anything? Any input!!

 

Works 269

 

In general higher lift= more low end torque, and longer durations = higher end hp. Most higher lift cams require stiffer springs and upgraded retainers. Use the stock profiles to gauge the aftermarket cams, but keep in mind there are still many variables in ramp/rate and profile. Cams add power but can also move the power around in the rpm band of the motor to accomodate different turbo choices and desried hp goals.

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