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Old 06-12-2012, 02:38 PM   #1
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Default Anyone want to jump in on custom cam GB?

Thru Web Camshaft. Technically not a group buy... just a volume pricing discount. Something around 40% off. It's on Mazdaspeedforums.org.. they may end up being a person short. I'm in the group buy- thought maybe someone on here might want to jump in for a good deal.

Bottom line $475 + shipping one way to Texas. Should be fine for any head, including VVTz.

Let me know if you're interested and I can give you more info.
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Old 06-12-2012, 02:47 PM   #2
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Pricing is for one cam only or both? I have Mazdaspeed blanks for both intake and exhaus for my VVT engine.
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Old 06-12-2012, 02:49 PM   #3
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both!

I think all you need is order of 10... to get the volume discount. If there was a bunch of interest on here, could probably even do our own "GB".
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Old 06-12-2012, 02:51 PM   #4
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That is cheap! New cams right? No core charge/need to send old cams in?
I'd be interested in a set of VVT cams. High-lift and all that stuff.
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Old 06-12-2012, 02:53 PM   #5
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Nah, you send them your cams, they hardweld them and regrind to whatever you want. I haven't picked an exact grind yet...but probably something along the lines of what evo/dsm "272" would be.

http://www.webcamshafts.com/
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Old 06-12-2012, 02:59 PM   #6
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Looking at their site... looks like they normally charge $691 for both cams for us. Probably not including any shipping etc, but IDK.

quote from GB thread:

These cams are not "regrinds", they use a nickel based hard weld filler to build up the lobes and bases circle and then grind it to the required spec. In doing this they preserve the base circle so that shims or custom lifter buckets are not required. The filler weld material is harder than the base cam material and has better wear characteristics so the cam will hold its profile better than oem.
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Old 06-12-2012, 03:02 PM   #7
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Do you need the same specs/profile for everyone in the GB?
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Old 06-12-2012, 03:06 PM   #8
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Nope, whatever you want. The GB is actually for the 2.3L MZR DISI engines. They were a few guys short, so we asked if a Miata guy could join and they had no issues at all. I called and talked to them yesterday... told them basically what I was looking for, but we're not picking an exact grind number until they get mine.

Edit: bottom line, get 10 guys/set of cams together and they will do the volume discount.

there's also not a limit to the number on the GB on Mazdaspeed forums....but the guy needs the cams by the 21st, this post is kinda last minute.
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Old 06-12-2012, 04:52 PM   #9
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Quote:
Originally Posted by aaronc7 View Post
These cams are not "regrinds", they use a nickel based hard weld filler to build up the lobes and bases circle and then grind it to the required spec. In doing this they preserve the base circle so that shims or custom lifter buckets are not required. The filler weld material is harder than the base cam material and has better wear characteristics so the cam will hold its profile better than oem.
With the stock base circle on the VVT intake cam you are not able to add any lift without carving in the lifter pots to make it go free.
To use 10.7mm lift I had to go down to 33 mm base circle (that and that the Mazda blank did not have meat for the wanted duration).

Cams is a Pandoras box, you never know when to end going around in circles (720 degrees would be enough one would think).
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Old 06-12-2012, 05:24 PM   #10
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where is the group buy thread? I've been searching that forum and haven't seen it yet.
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Old 06-12-2012, 05:26 PM   #11
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Well... I would contact them to double check then if you are VVT. FWIW, they don't have any "pre canned" grinds for the 01-05 engines... The rest of the guys in this group buy have VVT intake cams, I'm not sure if that's something you're going to run into universally wtih VVT ones or if just the Miata ones in particular....I have no experience with the VVT heads.
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Old 06-12-2012, 05:29 PM   #12
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Originally Posted by ianferrell View Post
where is the group buy thread? I've been searching that forum and haven't seen it yet.
It's in their "VIP" section... ie donating members. Very ghey IMO that they started making these sorta things "VIP only"....but hey, it's not my forum so whatever.

Something in particular you're curious about?

I tried to paraphrase all data that applied
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Old 06-12-2012, 05:32 PM   #13
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Quote:
Originally Posted by aaronc7 View Post
Well... I would contact them to double check then if you are VVT. FWIW, they don't have any "pre canned" grinds for the 01-05 engines... The rest of the guys in this group buy have VVT intake cams, I'm not sure if that's something you're going to run into universally wtih VVT ones or if just the Miata ones in particular....I have no experience with the VVT heads.
The MZR head is completely different than the BP6D so the issues/solutions would be different of course.
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Old 06-12-2012, 05:35 PM   #14
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Quote:
Originally Posted by aaronc7 View Post
It's in their "VIP" section... ie donating members. Very ghey IMO that they started making these sorta things "VIP only"....but hey, it's not my forum so whatever.

Something in particular you're curious about?

I tried to paraphrase all data that applied
kevin's a ***
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Old 06-12-2012, 05:40 PM   #15
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Quote:
Originally Posted by NiklasFalk View Post
The MZR head is completely different than the BP6D so the issues/solutions would be different of course.
Now that I think about it, I guess I have heard of similar issues with the rest of the miata heads hitting a max lift without cutting into the lifter bosses. I'm leaving all that to my builder...

and yes philly, +1
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Old 06-12-2012, 05:47 PM   #16
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Quote:
Originally Posted by aaronc7 View Post
It's in their "VIP" section... ie donating members. Very ghey IMO that they started making these sorta things "VIP only"....but hey, it's not my forum so whatever.

Something in particular you're curious about?

I tried to paraphrase all data that applied
Ahh... I'm fairly interested, would be for a vvt head, and I have no idea how to spec cams so.... idk. Guess the thing to do is call web up and see what they have to say about a turbo vvt cam.
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Old 06-12-2012, 05:49 PM   #17
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They were friendly and helpful when I called. As far as narrowing it down to exact specs.. they told me that could just be done once they finally get mine in at their shop. I'd be curious to know if they have any info specific to VVT head/intake cam
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Old 06-12-2012, 06:12 PM   #18
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With a VVT cam, lift has to be concidered.

With The VVT since the valve changes its open and close in relation to piston postion at the dwell at TDC.

I doubt much can be done with the VVT cam with the big dome pistons, but the turbo dish pistons should not have as much of an issue.
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Old 06-12-2012, 06:18 PM   #19
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Originally Posted by BogusSVO View Post
With a VVT cam, lift has to be concidered.

With The VVT since the valve changes its open and close in relation to piston postion at the dwell at TDC.

I doubt much can be done with the VVT cam with the big dome pistons, but the turbo dish pistons should not have as much of an issue.
I hope to just be weeks away from knowing. Claying with the belt three teeths advanced would give the max advance situation on the BP6D. If that doesn't work I'll have to retard a tooth (or two) to limit the adjustment.
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Old 06-12-2012, 06:26 PM   #20
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Quote:
Originally Posted by NiklasFalk View Post
I hope to just be weeks away from knowing. Claying with the belt three teeths advanced would give the max advance situation on the BP6D. If that doesn't work I'll have to retard a tooth (or two) to limit the adjustment.
That is something I would like to know!

But if it is retarded, in non VVT mode, the engine will suffer....
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