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Originally posted by chezterr:
I am definitely all for offering Duratec V6 camshafts. I do know that Crower is going to expect Draxas to cover the costs of the tooling necessary to make blank cams, that can then be ground to the specified characteristics.
Once Crower sends me a couple sets of cams for the 2.3L Duratec, I will try to bolt a set into a Mazda3 or Mazda6. I have read up on the Mazda S-VT and it would appear as though a cam swap would be the same compared to a non S-VT equipped cylinder head. Im just wondering if the PCM is going to wig out or not or if the end of the camshafts are different on the S-VT equipped cars (the part that the valve attaches to).
Nikolas
crossbow on Mazda6Tech.com has the complete shop manual for the 6 and he posted the S-VT section awhile back. The images are now dead links, but you know the website and how to reach him. Nothing special in the camshafts or their design, the actuator does require a special tool from what I remember reading, in removal alone. Besides that, the cam swap is the exact same as the standard Duratec.
There is only one other difference between the Mazda 3.0L Duratec and Ford 2.5/3.0L Duratec. The camshaft pulley that drives the water pump is on the exhaust camshaft on the Mazda 3.0L, while it is on the intake cam on the Ford 2.5/3.0L.
-- As for the PCM wigging out, I highly doubt so. At most with a very radical cam it might give a misfire code, GM 3800 V6s with radical cams are known to do as such. Z6Speed on Mazda6Tech/Mazda6Club is running Wagner Motorsport's twin turbo setup on the stock ECU until they can work out the AEM EMS solution. He is driving it daily with no real issue from the PCM.
Last edited by Twisted6; 12/01/04 01:58 AM.
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I definitely want to explore the possibility of offering camshafts for the Duratec V6 engines. Now that more vehicles will be coming with these cams and more and more people are in the market for these cams, it should be easier to justify the investment from our point of view.
I can say that installing camshafts by themselves, as the only mod you do to the engine, can be a pretty expensive endeavor. Especially if you have to pay a shop to install them for you. Getting to the rear cylinder head in the engine bay can be a major pain in the A$$.
If you are building a 3.0L engine from the ground up and installing the engine yourself, not nearly as expensive $$$ wise, but time wise, yes.
Nikolas
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15.09 @ 91.54(corrected, pre-SVT conversion, DiabloChip, and Injectors)
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Originally posted by chezterr:
I definitely want to explore the possibility of offering camshafts for the Duratec V6 engines. Now that more vehicles will be coming with these cams and more and more people are in the market for these cams, it should be easier to justify the investment from our point of view.
I can say that installing camshafts by themselves, as the only mod you do to the engine, can be a pretty expensive endeavor. Especially if you have to pay a shop to install them for you. Getting to the rear cylinder head in the engine bay can be a major pain in the A$$.
If you are building a 3.0L engine from the ground up and installing the engine yourself, not nearly as expensive $$$ wise, but time wise, yes.
Nikolas
Which is why I brought it up here, far more Contour owners are going to have their engine pulled than Mazda6 owners at this point.
I am positive you would have no problem finding a good number of customers here for it, as demonstrated by the interest in this thread. If you can make, I will buy it, we need something in between the rally/race aggressive Cat Cams and the rather tame SVT cams.
I hope your son gets better Nikolas.
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id love a nice set of cams to complement my 3L hybrid. id definetaly buy a set sometime next year!
Russell
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Now these cams would come with the gears already installed on them unlike the CAT cams right??? I still can't believe the CAT cams don't come with gears!  I mean can you even buy just the gears because several sources say you can't pull the old ones off without damaging them? Plus even if you had new gears you'd have to find a specialy shop capable of installing them true, within .1 degrees, and then permanently attaching them to the cams. (Stock are swedged but they are hollow cams so that won't work) Also you'd have to make them in both pitches. Have to remember there are 2 different pitches for timing components. All the Contour, Mystique & 99-00 Cougar crowd are large pitch!
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It was not broke; Yet I fixed it anyway.
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Originally posted by DemonSVT:
Also you'd have to make them in both pitches. Have to remember there are 2 different pitches for timing components.
they would definetaly have to have gears for me to buy them, but i wouldnt care about teh pitch, id switch to teh smaller one if it meant a new set of cams!
Russell
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There is a guy on fastcougar.com which already got a set of cat cams and I think that Cat Cams gave him instructions on how to switch the gears...  BTW I really dont think Cat Cams would produce these cams with out gears if switching up the gears wasn't possible with out a ton of work
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Originally posted by 96BlackSE:
There is a guy on fastcougar.com which already got a set of cat cams and I think that Cat Cams gave him instructions on how to switch the gears...
BTW I really dont think Cat Cams would produce these cams with out gears if switching up the gears wasn't possible with out a ton of work
Tell me how he is going to perfectly degree the gear and re-attach if perfectly true? I guess I'd have to see a CAT cam...
Brad tried to take a gear off an old stock cam and said it was unlikely you could get it off without bending or cracking it. Either way you destroy the camshaft.
I personally haven't tried.
You know folks with SVT cams are not going to destroy a set of those cams just to try it. (I do have a set of oval cams in my old 2.5L )
2000 SVT #674
13.47 @ 102 - All Motor!
It was not broke; Yet I fixed it anyway.
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