Other group buys?

Xaio has been hard to get a hold of, but I have always been interested in some of the parts he has developed, mainly his 4-1 header and the crankshaft/camshaft pullies, which would make a big difference

there are pull./gears we need on ebay for cores or if anyone has extras, we could also have those made up as well, and give some big gains from what i have read from xaio

idk about the header though, that would be a lot more difficult to have made up

any interest? seems like the underdrive is good to go:kermit::kermit::kermit::kermit::kermit:

why in the world do we have kermit smiles?

I like to get that header too.

The problem with group buys is development, the under drive pulley is cheap because you didn't pay for the r&d for it. If you want a company to just make you headers, there could be over $1000 just in making a prototype to build the copies from, then you also need to write a cad file, a jig, and / or something for the pipes to be bent the same way, etc.

If you want a successful group buy you either need to have the parts of the ability to design /build them.

Well, we know the headers are available, just need a conection to get the deal done, what about the other header, the 4x2x1, should we look into getting that one instead?

good luck getting ahold of xaio

at least the other pullies would be easy to have made

I won't waste my time trying to geta hold of him, already did and got no response. But there was someone else in this forum offering a 4x2x1 header, I think he was from Europe, what about that guy?

idk, still does not look like it will fit right to me, i just was looking for an option within the USA, if someone was to send a header in to a place with a large amount of people that are willing to pay, i think it could be done, i know we could get at least 10

i would perfer xaio's header but shipping is so expensive, its a shame really

Xiaogary could probably send 10 to you guys but you need to see his willingness to accept that responsibility for that much money and orders at once.

if i could get a hold of him :)

What about getting one and than get a price quote from a place that could copy/produce it? That would cut the design part out... Oh, Hunter just sayd that. LOL

You would have to pay for them to measure andale a digital copy. Or atleast break it down to do it by hand (whatever method your shop uses).

But you also have the cost of the header to copy. So $400 + labor to copy + labor to build each one + cost of materials divided by number of orders. Just the @$400 for the first header = $40 per person tacked onto the group buy if you have 10 orders.

If there is interest and the crankshaft pulley buy goes off relatively smoothly, I can look into designing some camshaft timing pulleys. I an extra set of pulleys from my 05 engine.

btw, i'm not trying to discourage people from doing a group buy, but what i sell, i am just "passing" along parts that i make for myself. if i was trying to profit off my time for developing, the prices would be much higher. But i just take that as i get to have it on my car, and so should someone else.


Adjustable cam gears would be an awesome upgrade, maybe ill buy some 09 parts and send them your way Doax, that way you can help out the other half of your members.. :)

That should be doable. They are a relatively easy item to design.

what do you mean by adjustable cam gears rabbit?

thats what i am assuming, xaio has crank and camshaft pullies but they cost a lot, should be easy, and a lot cheaper with a group buy

xaio got about 10whp with both crank and cam pullies

keep in mind though, those additions were on top of other mods that make better use of them.. (he already had the cams installed, and the upper cam pulleys let him tune it in)

Adjustable cam gears let you change the degrees or advance or retard in timing. You really sort of need to set your engine up for this, but if they weight less, thats a big benefit too.. (if setting the timing wrong it would be about as catastrophic as breaking a timing belt.)

well...myself, I wanted a new set of cams, that was on my wish list this summer lol

the weight decrease alone would prob be worth it, I do not think they would cost much

is it possible to have cams made? and isnt there a set from another car thats supposed to fit in our cars but those are still like $700 right?

A custom cam shop will do whatever you want for a price. :)

i forget his name but a guy on daewootech was making them, you can also find shops that will do custom regrinds, price would depend on what the shop wants to charge and their technique..

i am going to contact someone about other things i'll ask him about cams, problem is setting up durations etc that would be usefully with out interferences, without having an engine to test with..

Quote:

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Originally Posted by Daox

A custom cam shop will do whatever you want for a price. :)

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Not to be critical of ur work, I know u got the design of the pulley down but did u make sure its gona be thick/strong enought? I think u sayd it would be aluminum, and that will cut the weight a lot but its also a weaker metal, I mean did u consider torsional rigidity to withstand the stress, also where it goes into the shaft, where it will be steel to aluminum contact theres gona be the rotational streess, just making the point that I rather of have it overbuild than underbuild, we all apreciate u taking this task under ur responsability. Another question, U think it would be easyer or more cost effective to have the OEM pulley machined most of its weight out?

I did analyze the part to make sure it would hold up to the stresses of regular use. See here.

You could see some benefit from removing the dampening ring from the stock pulley. This would lighten it up ~2-3 lbs I'd guess (stock weight is ~5 lbs). However, it would still not be as light as the underdrive pulley and not have the advantage of underdriving the accessories.

Quote:

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Originally Posted by petrified.rabbit

i forget his name but a guy on daewootech was making them, you can also find shops that will do custom regrinds, price would depend on what the shop wants to charge and their technique..

i am going to contact someone about other things i'll ask him about cams, problem is setting up durations etc that would be usefully with out interferences, without having an engine to test with..

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do you think that you or the shop would be able to get them it? I am not worried about price with them, I would rather have them work to the best of our ability, I would not mind a small vacation up there :D

lurking around the import sites, it seems the crank pulley will add about 6-10% more whp ( about 7-9whp for you math failures)...those are some nice gains, seems similar to what xaio got, the majority of the numbers I found were from either stock cars or cars with a CAI and other very minor mods, damn good deal, and adding in some cam pullies would only help