Below is a list of all the popular aftermarket Evo VIII & IX cams w/ published specs. If there are any other cams that you have the specs for let me know and I'll add them. Evo IX cam specs are in the post below this one. Hope this helps

*FP cams advertised duration is for .050" (1.27mm) and not 1mm*

EVO VIII Cam Specs

 

Evo IX Cam Specs

*FP cams advertised duration is for .050" (1.27mm) and not 1mm*

 

This is very helpful in looking at cam spec.

 

Thanks for taking the time to do this. Helps a lot since I will be changing cams sometime this summer. I know someone that might have some gsc s2s for sale soon. Might have to buy them after seeing this.

 

Very good info , thanks man

 

Added a bunch more, going to see if the mods will replace the current sticky w/ this.

 

Added IX specs

 

Great update, good to see the new hks 272/278 up there for the IX. Quick question, how does duration of cams affect power band and agressiveness/driveability? ie. kelford 272/272 and the new hks 272/278, more duration for hks but similar lift. What would be the difference between the 2 when installed? Stock IX turbo in my case...

 

I ordered gsc 280 cams for my car. I plan on going with a fp black turbo do you think these cams were a good choice? I got them for a really good deal so let me know

 

cosworth M2 for mivec engines 272 advertised, 255 intake, 221 exhaust

 

Is there any more info on the tomei 270 11.5mm lift as I have a set at the moment I'm fitting into my new 2.4 motor and need to know at what degree to set the max Lift of the cams to???

 

Great info, thank you!

 

Found the info i needed in the end for the tomei 270 procams for hydraulic lifters with 11.5mm lift.

Centreline for intake is 110

Centreline for exhaust is 115 is the OP can add the info to the chart.

 

Good info... Thanks.

 

Good question, lift is how high the valve opens and duration is the period that the valve is open for. More lift/duration allows more air to enter the cylinder and more exhaust to leave the cylinder. Typically higher lift/longer duration cams are a little rougher, but depending on overlap that can be reduced.

I'm assuming you're talking about S3's. I'm running those currently and they are pretty aggressive, but don't idle much worse than S2's on my car. Although I've converted to speed density on stock ecu. You will sacrifice a little down low for big gains up top. Make sure to get upgraded valvesprings if you run these or the valves will float.