Billet rear diff cover......

PureDrifter

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Aug 11, 2009
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Enraged;1452418 said:
the interior contours look like they were finished with a small ballmill, so I doubt the covers could be priced lower while still turning a decent profit. if you think you can do it, by all means, give it a shot and let us know how much it will cost.

it's sad to see people assuming they could get it made for less and trashing the business for trying to make a profit. i dont make parts (aside from one-offs for myself) unless i will make money, my time isnt free.

:3d_frown: i wasn't trashing the business, merely stating that i prefer to CNC my own parts when i am competent/able to do so if the alternative is a bit too $$y for me.
 

IJ.

Grumpy Old Man
Mar 30, 2005
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People tend to charge what the market will bear for that kind of work and as they're aimed at the Mk4 $$$ crowd obviously the market bears quite a lot.

They're selling for more than most of the Mk3's that come through here have cost in total so won't really be an option.

The next point is "need" it's not like even the big dog Mk3's have been suffering that type of failure so there's very little need, it's a LOT of money to pay for a Chi Chi part.

Looking at that piece I'd cost it out around half that and still be making a good profit on it if I were to make them but then again my machines are all paid for so I can be more realistic on pricing than most.
 

becauseican

Supramania Contributor
Mar 31, 2005
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Yup, $800 is a lot.
Maybe the chinese will make a knock-off for $150, so people who bearly can afford to keep their Mk3 running can afford one.
Of course, being chinese, it won't fit, there will be flaws in the material, and it will leak.
Much like the chinese aluminum knock-off oil pans for the Nissan engines.
The GReddy pans cost money,
but look!, there is a chinese one for 10 cents on the dollar!

That is absolutely hilarious. Thats some new sig material!!:yelrotflm
 

prsrcokr

Motörhead
Apr 3, 2005
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Billet would transfer more heat (assuming the same fin design) but the price seems really high. It'd have to be a billet case for that price (cast material plus unit and R&P is heavy)
 

uask4it

1500 rwhp member
PureDrifter;1452868 said:
:3d_frown: i wasn't trashing the business, merely stating that i prefer to CNC my own parts when i am competent/able to do so if the alternative is a bit too $$y for me.

If you do your own CNC work, then you know what it takes in time to design, to set this up, and the cost of BILLET aluminum. This is made of T6-6061 and is setup just like the factory cover for ventilation. The idea of making this cover and selling it to the public for less is absurd. The cost of a square piece of this material is what others think this should sell it for.


prsrcokr;1453096 said:
Billet would transfer more heat (assuming the same fin design) but the price seems really high. It'd have to be a billet case for that price (cast material plus unit and R&P is heavy)

Its Billet...

Most people that make these comments don't realize what it takes in R&D to make this along with the materials and time.
 

uask4it

1500 rwhp member
Enraged;1452418 said:
the interior contours look like they were finished with a small ballmill, so I doubt the covers could be priced lower while still turning a decent profit. if you think you can do it, by all means, give it a shot and let us know how much it will cost.

it's sad to see people assuming they could get it made for less and trashing the business for trying to make a profit. i dont make parts (aside from one-offs for myself) unless i will make money, my time isnt free.

100 percent correct!

One other thing. This isn't needed for most applications unless you are making some power and going to the track.

p1458603_1.jpg

p1458603_2.jpg


Working well for us :)
p1458603_3.jpg
 
Dec 3, 2003
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Poodles;1452358 said:
IIRC our diffs don't mount the same way and our covers are simply covers and not load bearing...

If anything, I'd like to see a cover closer to the stock MKIV style as they built "coolers" into it.

Exactly, and I have an idea if they were to be made to add to this.

Duane
 
Dec 3, 2003
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People, you guys need to realize that, machine time, programming and profit are factored in to this. Some may be able to make it cheaper, fine, you make it then. ;)

If Rich makes it, I will buy one for sure. Just need a couple of things added for my set-up.

Duane
 

PureDrifter

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uask4it;1458586 said:
If you do your own CNC work, then you know what it takes in time to design, to set this up, and the cost of BILLET aluminum. This is made of T6-6061 and is setup just like the factory cover for ventilation. The idea of making this cover and selling it to the public for less is absurd. The cost of a square piece of this material is what others think this should sell it for.

when did i ever say i'd sell it for a profit :3d_frown:
i was talkin about making it solely for myself.
 

KicknAsphlt

Occasional Peruser
I know this may not be an accurate comparison, but...... I have a machinist friend that I was talking to one time, and he was explaining to me about custom fuel rails (I know, apples, oranges....kind of...) for our trucks in my truck club. Most of the aftermarket vendors that sell billet fuel rails sell them for anywhere between $200 on the cheap side, to about $400 IIRC. He was explaining that it costs about $20 for the stock (this was a couple of years ago, mind you), and probably about $20 labor to machine the rails. So that's $40 to machine a pair of fuel rails for a V8 motor. Even if you wanted to make a 100% profit, that's only $80 for the rails....but most vendors were selling the rails for 5-6x's that. Again, not diff covers, but same concept.

I know it all boils down to what you think your time is worth, but on the same token, put the ego aside and don't be greedy.
 

Enraged

A HG job took HOW long??
Mar 30, 2005
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people only look at the material cost and machining time, rarely do they understand that money was spent on design (time), costs for 3d modeling (computer, software, etc) and prototyping (which can be very expensive). to recoup those costs over small runs of parts (10-50 parts), it can make the parts expensive.
 
Dec 3, 2003
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Enraged;1459272 said:
people only look at the material cost and machining time, rarely do they understand that money was spent on design (time), costs for 3d modeling (computer, software, etc) and prototyping (which can be very expensive). to recoup those costs over small runs of parts (10-50 parts), it can make the parts expensive.


If we get 7 people or so, these can be made for cheaper than 800, I spoke with Rich already about this. He can add some fins for cooling although the aluminum will help that and add a fitting to accommodate my oil cooler too. (in case you guys would want one)

Duane