has ANYONE built turbo cams (or aftermarket cams at all) for the rev up block? I know the intake cams will fit, but now the exhaust cams have sensors on both ends and nothing will fit. Has anyone made these cams yet? Or would I have to go custom? Just seems like it would be a money maker right here since all the 2005 (track & 35th AE) and 2006 models in manual transmission have the rev-up motor. Wonder why JWT/Nismo/Tomei/etc. haven't developed anything yet.

Thanks.

 

No one has anything out yet and nothing can be made at this point in time

 

Get your stock cams, and regrind them to your needs, done.

 

you're kidding right? I thought the only people who were still dumb enough to use regrinds were the domestic guys.

 

Explain to me why they are so bad? I am curious. They have worked fine in the past without any issues

 

I like your thinking -- OLd School Right ?

Actually, the build-up and re-grind for Japanese cars is very much alive and well in Southern California..

If you can specify what lift and duration, there are several Cam Grinders that can supply the cam's to that spec. Be prepared to add Valve Retainers of Titanium and substitute the Valve Springs...

Cheers Amy -

The 350Z regrinds will test at the track in the spring of this year.

 

hm ok...guess I might be the first one with them in. Something's in the works.

 

Well, excuse me for being harsh, I think I was out of line. But in all honesty, it has been driven into my head never to use re-grinds by one of my good friends outside of the Internet, Mike Kojima. He is a very well known mechanical engineer/former engineer for Nissan, who has the following to say about fresh billets versus regrinds on the SR20 motor [paraphrased]:

"... genuine Nissan billets are used so the factory base circle diameter can be maintained. This is important for correct hydraulic lash adjuster function and correct valve train geometry. These are important factors for operating noise and valve train life. Other companies regrind the base circle smaller to get more lift and duration on a stock cam. To do this correctly would require an asymmetrical grind on the lobes to match valve events because of the change in the rockers angularity and motion ratio. Some custom shims under the hydraulic lash adjusters would be needed to maintain proper lash. The wear pattern on the rocker arms would not be optimal either due to their change in angularity. Most companies that do regrinds do not supply an asymmetrical grind or correction shims!

Other common aftermarket problems such as premature wear due to incompatible metals rubbing on each other are eliminated by using genuine Nissan cam billets.

 

Thats what i have always heard and thats why i have stayed away from doing a regrind.

 

I always thought when they regrind a cam for diffrent specs they machine weld onto the lobes then grind down to the specs they want. Did not know they messed with the base circle diameter. Were would some get some blank cams? And BTW all billet means is that its a solid metal.

 

Blanks are not available yet. Thats the whole point of using a blank is the fact thats its a billet blank and you are not adding and subtracting from the stock one.

 

I meant Blanks for the 287HP motor, any idea where to get them cheap?