Steve Huck's Demon V8 version 1.5

[cforcht]

OK heres where I am at so far on the Demon V8 1.5. I am sure you're wondering what the 1.5 means. simply put, its scaled up 1.5 times. it will be 5.6 cubic inch or 92cc if you prefer metric. I have made some changes. some were required because of the scaling. others were personal preference. But the overall engine is based on Steve's original design. gotta give credit to Steve for making the plans available. He did an excellent job of documenting his progress and making the plans.

the bore has been upped to .975 the stroke is at .9375. the valves have been enlarged to .4375. locating dowels have been added to the heads both for mating to the block and for ease of fixturing the heads for machining. I must say it made the head building process pretty painless. the ports on the heads are not done yet. I needed to get the valve cages made and installed first, which I did last night.

[dneisler]

Nice, more pics, we love pics :-)

[jalessi]

Wow that sure is fast, how long have you had the plans?

[cforcht]

I think I was the first to buy a set of plans from Steve. But I spent a considerable amount of time making a 3D cad model of it first.

[tonycorse]

I want like this ...... fantastc engine ........I want the plans for CNC

where I can buy these plans? I buy also pieces available

[dynosor]

Very impressive finish on all machined surfaces!

[cforcht]

if someone wants plans talk to Steve Huck here on the board. hes the guy that created them and hes the one who should be getting paid for his efforts.

[cforcht]

Dynosaur. thank you. I do have the advantage of owning a commercial CNC lathe, mill and wire EDM machine at home. and I am a machinist by trade.

[TarHeelTom]

Thanks for the link

Tom

[cforcht]

heres a link to other pics of the engine in a gallery on google sites.
http://sites.google.com/site/forchtf...achine/gallery

[cforcht]

heres a piston and a couple valves. made 32 valves and retainers today. boy those are time consuming little buggers. but they're done now. now I need to decide whats next on the list. possibly the cylinder liners.

[cforcht]

forgot to mention I made the wrist pins for the pistons. they are actually dowel pins that I milled to length. doing it this way has the advantage that they are hardened, chromed and ground. the valves are made from 4140 pre hard material.