01 SS Jay

Im willing to model it up in 3d and have a friend of mine who owns a machine shop price it for us. Im thinking at the right quantity (probably 75 - 100) we can get something that may not be super pretty (smooth your own exterior welds), but will do the job better than an ls6 intake for around $500 or so. If im wrong, so be it, no one loses any cash. All i need is someone to send me an old intake (can be blown the pieces, all i need are the mating surfaces dimensions). I'll persue this if i can get a free intake out of the deal. Who's interested?

McRat

[quote]Originally posted by Jason:
<strong>Im willing to model it up in 3d and have a friend of mine who owns a machine shop price it for us. Im thinking at the right quantity (probably 75 - 100) we can get something that may not be super pretty (smooth your own exterior welds), but will do the job better than an ls6 intake for around $500 or so. If im wrong, so be it, no one loses any cash. All i need is someone to send me an old intake (can be blown the pieces, all i need are the mating surfaces dimensions). I'll persue this if i can get a free intake out of the deal. Who's interested?</strong><hr></blockquote>

If you need the manifold mating surfaces accurately digitized, gimme a buzz. I own a 3D digitizing lab, accurate to within 0.0001". I'll work for a manifold.

www.qualityinspection.com

Pat McSwain

Crazyquik

I've heard the plenium needs to be about the size of the motor (346 ci engine needs about 325-375 ci of volume.

Then there is a rough formula for runner length too, depending on rpm band you expect to use.

01 SS Jay

That would be ideal McRat. Id be doing it with the trusty micrometer, but if you could do it faster and more accurate, that would be great. I know gaskets would compensate for irregularities to a certain amount, but ideally, considering prototype cost, having one less thing to worry about would be perfect. Plus IGES files are easy to work with. This would be a fun project. Anyone who contributes significantly will be rewarded accordingly. This is all a gentlemens agreement type deal. Im not trying to start a business. Handshake, a smile, and someones word.

01 SS Jay

Im assuming someone on here has a motor that is struggling for more air. Care to be a test mule? Who has a manifold that can be sent to McRat for digitizing?

Terry Burger

iTrader: (4)

I've seen this process done, and it's rather expensive. A better approach is to figure out a way to better modify the LS6 manifold.

01 SS Jay

Design time = free
Knowledge of members = free
Prototype = little or nothing
Shipping = pain in the ***

Im not sure what machine shops people use, but I have an understanding with mine. Prototypes are free, as long as I guarantee future orders. Im sure this process is usually expensive Terry, but in todays nomenclature, "I gots da hook-up"

y2khawk

iTrader: (5)

[quote]Originally posted by Terry Burger:
<strong>I've seen this process done, and it's rather expensive. A better approach is to figure out a way to better modify the LS6 manifold.</strong><hr></blockquote>

I happen to know someone that's in the middle of having someone do just that. The people doing the mod's happen to be in the business of OEM plastic manifolds. Hmmmm <img src="images/icons/grin.gif" border="0">

seems they can get it to flow pretty good up top.

If that pans out who knows, but i may be up for a little sheetmetal fab work this winter. Ahh, to dream

01 SS Jay

Well, a manifold seems to fit most needs at the moment. If someone else has an idea that would help us overcome issues that we have that can be solved with good design, let me know. Ive spent the past 4 years doing machine and sheet metal design. So if its metal, Im pretty sure that the capability is there. I tried to drum up some stuff on LS1.com about a year ago, but I couldnt get anyone to understand that for this to be a worthwhile adventure, we need at least 50 people wanting the same thing. Quantity is the key.

[ November 13, 2001: Message edited by: Jason ]</p>

Y2K SS #449

Holley has decided to make an LS1 intake manifold that is casted not nylon or polymer. They'll have a polished kind to go along with the black. One with no Direct Port Nitrous Bungs and one with. The Intake runners are supposedly pretty rough but there is enough material there to extrude hone the intake out. Stock, it's said to flow 10% better then the LS6 intake.

I contacted Holley, but they didn't have the intake ready for distribution yet and they didn't have a price as of yet. They did have it at the SEMA show and I have seen pictures of it.

Cool28

iTrader: (2)

I think it should be setup for bigger engines aka heads and cam, storker and boost/nos engines. Most people don't need a intake for a pretty stock engine you know what I mean. This would be great if you could do this <img src="images/icons/grin.gif" border="0"> . I would be up for buying one if I wasn't broke lol. Hell I would even donate to R&D if I could.

Cool28

iTrader: (2)

What intake to you want? ls1 or ls6? I might beable to get my hands on a ls1 intake. I can find out tomorrow.

01 SS Jay

Ls1 would work best. Id size the ports the same as normal, and just leave plenty of room for massaging.

Damian

iTrader: (89)

Jason, I have a damaged LS1 intake you can have. The only thing wrong with it is the throttle bracket being broken. Other than that, it's fully functional. You pay the shipping, and it's yours. Email me if you want it.

Josh

69Muscle

What about heat soak? Aren't any of you worried about that? I think the composite is a great material due to that reason... Unfortunatly we can't make a composite one.

If someone was into platic molds all they would need to do is fill a stock Ls1 intake with molding clay/harden/break off the intake/ and you now have a mold for a new one which you can add clay to increase runner length and to port it out.


It sounds almost easier then making one with metal.

01 SS Jay

Heat soak, pooey. I agree, that the material used in the manifolds now is superior, but think about all the high hp small blocks with aluminum. Its a good medium. Is that extra 2 or 3% worth it? Why arent more people coming out with composite intakes? Its nice, but it isnt the be all end all of intakes. All materials have compromises.

Dave Carney

[quote]Originally posted by Jason:
<strong>Why arent more people coming out with composite intakes</strong><hr></blockquote>

That's easy! Tooling costs divided by potential units sold. Holy crap that is expensive to set up.

Cool28

iTrader: (2)

He got a point there and I wouldn't trust a composite intake with lots of boost and crap. Maybe its just me.

1CAMWNDR

iTrader: (21)

What are the basic design goals? More plenum volume I am sure. Longer / Shorter runners? Same height as the LS1/LS6; or push it right up near the cowl? This is exciting news <img src="graemlins/burnout.gif" border="0" alt="[Burnout]" />

Crazyquik

Dont worry about heat soak. Look at all the 6-7-8-9 second Mustangs, Camaros, GNs, etc etc. Basically all the engines before us. Going from a mass production intake designed for a 350 hp motor to a race intake designed for a 600 hp motor is going to show gains, heat soak or not.

J.