Aggressive lift on cams can also wear out valve springs, not just RPM... No?

 

sure, I am just trying to clarify as I heard I would not need the spring/retainers from a vendor who also distributes cosworth products including these cams. I want to get these cams bad, but I also want to get a good deal and not order any parts I don't need...

the lift is stated as 11mm in cosworth web page, but I don't know the specs on stock EVO IX cams...

 

Just talked to cosworth. they confirmed that you should not have to change the spring/retainers if you keep the stock rev limit. anything higher (mine already revs to 7800rpm) they recommend changing them.

Also, the first set of cams are completely sold out and are being shipped to be delivered by the end of this week.

 

Yup, stronger springs and lighter retainers prevent valve float at higher revs with higher lift cams.

 

^^^ lol.. a little bit too much on the angry side, but +1

 

If you go through a ka-zillion pages then you should know that works never dyno qualifies anything. Just take their word for it! Just like the 02 housing. After all, everything is engineered, so it has to be good!

 

WOW! That is great!

 

Oh awesome my post was deleted.

 

Has anyone tried these cams on a 9 yet??? Has Works done any dyno testing....anything????

Its funny how an 1100 dollar price tag is thrown up immediatlely and then they dissapear without giving any useful information.

 

Have you or anyone tried giving WORKS a call? The best way to get answers or help from them is to call. From past experiences, they suck pretty hard as far as online service (No offense, WORKS!). But if you give them a call and talk to them, they're more than willing to help. I've never left without an answer or left angry after speaking to them over the phone or in person.

 

You're right.. it's a conspiracy.

Anyhow, would you rather they just said "We're going to sell cams, but we're not going to tell you how much we're going to be selling them for"?

They've even explained that they'll post results as soon as they get them. So sorry it doesn't sit well with your time frame.

 

Everyone one has been waiting for a set a realiable cams for the IX and still no show i guess we have to wait for HKS to do there magic.

 

We know there has been some discussion regarding the package versus the cams alone. Perhaps the most important reason for using the WORKS valvetrain kit is that the bottom of every OEM retainer compresses every valve stem seal with every revolution of the cam. Those two parts were never designed to make contact with each other.

In order to preserve your valve stem seals and prevent premature failure, a lower profile retainer like the WORKS Titanium one is required. These were designed with the WORKS 269 Power Cams and will accommodate 11.0mm+ lift cams for the 4G63. Pretty much all aftermarket (higher lift) cams for U.S. EVOs require this. It's not worth saving a few hundred bucks now to spend a few thousand bucks later if you plan on keeping your EVO.

FYI, pricing from Cosworth has now been finalized. The complete Cosworth/WORKS package is now $1048.

 

Where is the dyno's on the ix? Did I miss it?

 

No, the post you quoted was referring to the WORKS valvetrain kit.


Dyno numbers will be performed with the WORKS P2, Drop-in filter, Aperture throttle body, and Exhale exhaust as a 'TR-340' package (although it looks like we may sell out before that testing is completed and posted).