So i have been inquiring about their release of the VQ35 camshafts that should be out in the market soon. The representative was not too clear about everything i wanted to know but this is what i was told about their camshafts:

-Their will be a Turbo grind and various NA grids.

-The various NA grinds will include a design that does not need change or upgrade of stiffer valvesprings and the other NA camshafts will require a stiffer valvetrain.

-The higher NA grind seems pretty harcore. The rep told me they're pumping out 400 FHP but wouldn't tell me too many details on the R&D motor.

-Should be released sometime within 60 days but we know their is always a delay on this one. Once the product/price is released it should be noted on their site.

-They have not yet been released because they are still undegoing testing but release should be soon.

-Price range should be around the same as the EJ25(Subaru) camshafts currently being sold by Cosworth which is around $1000 or a bit more.

 

its always good news when cosworth is working on the motor. its got potential

 

Did he give any info on the heads like release date?

 

Rumor is that Cosworth was in the design of the motor for the GT-R

 

Within 2-4 weeks is the latest I have heard.

And tri-metal race rod/main bearings within 2 weeks.

 

Sorry for my ignorance: What is better about tri-metal bearings? Has anyone had issues with the OEM ones yet?

 

No issues with OEM bearings yet. The Cosworth will be single sized, so no need to hunt down the various sizes of OEM bearings. They claim they will all be within spec...they do the same thing with the Evo, STI, and other engines, which also used OEM graded bearings....guess we'll try them and see for ourselves. They are cheap too..$100 for each set of rod or main bearings.

I dont have time, at the moment, to go into depth on the benifits of tri-metal. But basically, they provide better heat hesistance, more consistency, and better longevity.

That said, I havent seen any issues with the OEM bearings, so I am not in a hurry to rush to tri-metal race bearings. We'll use them if they work correctly and maintain correct clearances...since they are cheaper and more readily available than the myriad of OEM bearing choices.

 

Sharif, do you know port velocity of the heads?

 

Funny you should ask. They just emailed me the flow bench results with the big valve heads. As we all know, flow bench numbers are just one measure of head performance, and in themselves, do not mean a whole lot.

But for what it's worth.

All numbers are at .50 inch lift
Intake Stock: 346 CFM
Intake Cosworth: 411 CFM

Exhaust stock: 225 CFM
Exhaust Cosworth: 274 CFM

Ready in 2 weeks, if anyone would like to pre-order.

 

Actually I'm interested in the bearings, both sets. What can go wrong with those since they're one size ?

Danny

PS: Any news on my VB ?

 

I am no mechanical engineer but I would guess port velocity is just as important as the flow numbers but the numbers do look good. I will call you when I get out of work. I extremely excited!

 

You are correct, my friend. And there is no realistic way to test, especially with FI...unless you bolt them up and give it a run on the dyno.

I have no doubt that Cosworth engineers are world class, and the heads will produce excellent results. Years of WRC, F1, and Champ car engine building certainly make them well qualified.

 

BUMP ?

 

Subscribed. I want to keep up on this.

 

Join in the action and call Cosworth

The more enthusiasm they hear for anxious arrival, the better.

 

Its hard to get any technical info from them. I am trying to find out what is the biggest cams I can run on their heads with the stock and the Cosworth pistons. I don't want to have a custom grind made that will have clearance issues with the pistons. They keep telling me to use the Tomei's and in my opinion those are to mild for what I want to do.

 

Kinda wierd that they would recomend Tomei cams when there coming out with thier own cams soon. Im waiting to see the specs on the Cosworth cams too. Should be the best combo with the heads and everything. I would think that all the parts would be designed to match/compliment each other.

 

And somebody just now told me to use Nismo or JWTs until the Cosworths are out...

Danny

 

I am sure they are just recommending the Tomei cams right now because their cams are not going to be out anytime soon and they should be shipping me a set of heads soon. I guess I will have to wait for their cams to be released. Last thing I want to do is install the heads and then go back and change out the cams later on.

 

Bump this up. Call for updates people