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Chewievette

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Posts posted by Chewievette

    Mopar Small Block!!

    in Other V8Z Tech Board

    Posted

    p.s. I went to the drags in Orlando once and these two kids had a completely gutted Omni Horizon GLS (2.2 4 Banger) with a monster (not the stock one) turbo on it and were beating EVERYBODY. Their hood scoop was a PVC periscope looking pipe. Cheap car, cheap parts, whatever works.

    and I bet they were having a ball doing it too! Sounds like my kind of fun!

    Casting Engine Block

    in Other Engines

    Posted

    This is what happens when people type when high :mrgreen:. Are you starting an F1 team? Are you Howard Hughes? There are plenty of good motors that make alot of power and are proven. There is no need to waste time and money doing whats been done. Let GM' date=' Nissan, and Toyota do the R&D. AFR has aftermarket heads for the LS6 that will outflow a Northstar head at a fraction of the cost of casting your own aluminum block. to use with there head. As for making a one of complete motor. Even if the block gets made you still have to make heads and hope they flow. What about a crank? What stroke?

     

    I shouldn't take posts so seriously.[/quote']

    Well, I ditched the LS6/Northstar idea for that very reason, too much expense for something that just "looks cool" If I do anything with an ls6 it will be to make it a V16, of course I dont have a better reason for that one either...

     

    The flat twelve project is entirely different, it Might start out as a stock based "stretch" engine simply because of the cost, but that is Not the end goal. The goal is to make a smaller lighter engine that can out power the big WW2 V12s and radials which currently dominate the unlimited air racing community, If we can build an engine that simply matches the competition it would be profoundly better than the current situation. it is getting more and more difficult to find serviceable parts for those WW2 engines, simply having a modern, new built engine that has parts availability will be enough to swing the market. You can see where I want to go with this, if our one off test engine works I want to go into production with it. Sure the market is small but if it works for auto racing why wouldn't it work for air racing? With the prices that race teams are paying for rebuilt allison and merlin engines my engine would be like pocket change. If you've ever looked into how the teams work now you will quickly see why I'm persuing this so adamantly.

    How much bondo is too much?

    in Body Kits & Paint

    Posted

    My 280zx although seriously rusted and mostly beyond repair had some serious bondo work done to it. On the hatch there is a piece about 8" in diameter and 1/4" thick that Flaked off! looks like it didn't stick to the metal at all. Its going to take all kinds of work if I want to get this car on the road, that is IF I want to put it on the road. It has no title so it might get the race car treatment, but if I can find a car with a better body I'll just start there. Good luck with your bondo!

    Crude Belly Pan Idea *pic*

    in Miscellaneous Tech

    Posted

    Here's some pics, I'm not sure what car this came off of but it is definately some kind of audi. HTH

     

    This is the bottom side, the ducts open to the top side. It's far from mint condition but I thought it might be useful.

    100_6658.jpg

     

    Its most definately an audi piece I just dont know where from! Can anyone tell from this pic? I wonder how much this piece would cost new.

    100_6660.jpg

    Crude Belly Pan Idea *pic*

    in Miscellaneous Tech

    Posted

    I recently obtained a front belly pan from some sort of audi street car, its completely flat with three NACA ducts built into it. I dont know if its any use since its quite a bit beat up but if you want I'll take and post some pics tomorrow. I just got it earlier today and havn't really had a chance to look at it yet.

    Shift "Gate" Plate Anyone Out There Made One?

    in Miscellaneous Tech

    Posted

    For sealing out the fumes and such why dont you take the stock shifter boot and turn it upside down? afterall that's what it was designed for. I havn't a clue if this will work, just trying to help. If it was me I would use some thin rubber sheet glued to the underside of the gate and slit open like 240Z2NV was talking about to give it a finished look, give the plate a brushed aluminum look and ...supercar here we come! I'd really like to see one of these in action on a Z, might give me further motivation to work on my car.

    Casting Engine Block

    in Other Engines

    Posted

    EDIT: LOVE the signature pic BTW.

    Thanks! Maybe someday they will be the same thing...

    Well its not exactly how I want mine but close enough!

     

    I've been playing around with the same 2D program for years and know my way around it pretty well, now it looks like I'll be relearning a 3D program, oh well its nice to learn something new once in a while!

    Casting Engine Block

    in Other Engines

    Posted

    Well I'm playing around with the ls1 because it would be cool as hell, pure and simple(sort of) I'm designing the flat 12 as a pure race motor no compromises Once you get rid of all the economy and durability crap you'll get some serious horses. My dreams have always fallen twards air racing so its no small leap of the imagination to design an engine specifically for it, I dont think that's been done since the 30's!

     

    I am going to mill the block out of billet, its the only sensible way to go for a "production" run of two or three engines. I cant even imagine how many castings I'd have to go through to make one good one! Since the 12 is a flat engine the block is substantially less complex, which makes milling it out of a solid chunk that much easier. Its going to take some time but I'll try to keep you posted afterall its not every day someone makes their own engine.

    Casting Engine Block

    in Other Engines

    Posted

    I'm putting the quad cam LS1 project on hold for a little while citing dimensional issues but I'm still chugging away at the flat 12. My partner in crime on this engine is committed to casting the block and I really think that we can get better quicker results via billet. I suppose the war shall continue... Any thoughts?

     

    Gollum, your last post gave me an interesting idea, If I can work out some of the details I'll maybe start a thread about it, or perhaps just add to this one.

     

    ADD: Well, I did some figuring and fiddling with some numbers and my simple approach to DOHC most likely will be a bigger headache than anything else but I'm willing to go futher in depth time permitting. I think the best bet would be to follow the lead of the guys moding KA24 heads, but instead of bolting or welding the head, cast new ones. Even though there's coolant flying around in there It'll be easier than casting a new block.

    The Long Road (Progress pics)

    in Body Kits & Paint

    Posted

    Thats true here in CA though we got plenty of 240's.

    That's it! I'm taking a road trip to california with a big rig and a car carrier! If anyone in the midwest wants a good shell, you pay your part and I'll pay mine and we'll all get a steal of a bargin!

     

    Or if that's too expensive I'll just walk out there and drag/drive one back!

    8~9 liter Jaguar V12???

    in Other Engines

    Posted

    The problem is real estate. It's tough enough to fit a turbo or supercharger in a V8Z.

    There is always a way, you just have to get outside that box first! You might have to relocate the brake booster and the battery to make room, but like I said there's always a way. Also thinking along the same lines isn't there a bit of room between the inner and outer fenders, yes? Even more if you have flared fenders, it'll make the tubing longer but at least you wont have to worry about heat. I'd say that's most definately outside the box. Once you get the engine mocked up into the bay and start thinking about it you can find someplace.

    Casting Engine Block

    in Other Engines

    Posted

    TVR's original AJP8 and speed12 blocks are fabricated from STEEL. Pieces are cut from steel plates and pipes then welded together into one piece.

    hmmm... interesting, I'll have to look into that! Sounds a little bit easier than casting a new block. Anyone have more info?

     

    DOHC heads sound sweet, but I dont think theres a big enough market to turn a profit. You might be able to get a couple dozen sold but the high price will keep most people away. Remember that its not just the head that needs to be made but also the new cams, cam drive, valve cover, valves, valve guides, valve seats, and all the machining that has to be done, it wouldn't be cheap. The venture will most likely meet the same end as the last DOHC head that was made. Personally I think that making a block would be easier than making a new head.

    Casting Engine Block

    in Other Engines

    Posted

    Thanks for all the help guys! This is great. That link to the healey block was very helpful, it helped me better visualize the molds. I'm going to try to draw a block on that cad program that emachineshop has, see how that works out. I'm thinking that having someone else do the casting would be better (and cheaper) than me trying and failing. I'm trying to get as few things made by casting as possible, then again I'm trying to keep as many of the stock parts as possible. I havn't a clue how this is going to work out but either way thanks for the help!

    Casting Engine Block

    in Other Engines

    Posted

    It might end up being less expensive to get a chunk of AL and machine it into an engine block.

    I was thinking about doing that but cutting the water jacket into it sounds very expensive! but hell, I'm not even listening to myself I'm not doing this as a cheap alternative! I just thought casting it would be easier. Doing it myself sounds risky and wasteful aka I havn't a clue how many I'm going to have to make before I get one good one, I'll probably end up with a few crap parts lying around by the end of this process. I'm going to go with billit on a lot of the other parts. If I can do a good cast block then I might as well do a cast crank, although I'm sure billit would be stronger. Thanks for the help guys and I could always use more!

    Casting Engine Block

    in Other Engines

    Posted

    I know what you mean about those funds, they just seem to go right out the window dont they. I am acctually working on two engine designs, which makes things a little more interesting. The first one is a cross breed between the Northstar top end and the LS1/6 bottom end so I can get some displacement behind that quad cam. Recently I've been toying with the idea of doubling it into a V16, still trying to mentally fit that in the engine bay... The other is a Flat 12 designed from the ground up for air racing (my other passion) If it doesnt make it faster, lighter, or safer it doesnt have it! That one should be a screamer. Now I just have to find some of that funding...

    8~9 liter Jaguar V12???

    in Other Engines

    Posted

    About the only other option to offset grinding the crank is having a new one turned from billit. From the research that I have done this is the only practical way to have a one-of crank made, casting and forging are better for full or limited production. Just remember that you can do anything you want as long as your pockets are deep enough! Personally I think a bit of boost on the stock engine would do wonders. But thats just me.

    Casting Engine Block

    in Other Engines

    Posted

    Is anyone here familiar with casting engine blocks? I have been developing my own engine for quite some time now and I need to know a bit more about casting a block. I either need to learn how to do it myself (preferred) or have someone do it for me. Either way I need to know how its done so that I can design the block. I know a lot of them are done using sand casting but how are sand molds made? Any help would be appreciated, Thanks!

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