An Example of Truly Impressive Turbo Engineering

[IWannaBMW]

Holy fuck monkeys!!!!!! Even tho i SUCK at math, i'm debating on studying engineering

[nyskiffie]

Coming from a 3rd year engineering student who was awful at math in high school and still is, it could be worse. It just takes a lot of time and a little bit of accepting a D when you just need to get through it.

[milotrain]

Love it!
Anyone dare estimate the price breakdown(material cost + machine time + sleeving) on the CNC'd block? An open sourced bulletproof billet engine is a childhood dream....

I've always wanted to build my own engine from a pile of metal, and because I've dreamed about it, and done a little bit of open source work I'll tell you what I've found.

5 Axis machine time is around $1500 per 8 hour day, this does not include the operator necessarily. There is no way you could do a complex 4 cylinder in anything less than two days. A four block would need to come out of about 3 cubic feet of Aluminum at around 169lbs per cubic feet so 507lbs total for the block and aluminum in bulk is around $1.50/lbs so around $800 for the block of Aluminum with delivery to the machine shop.

So you are in for at least $3800 if you don't already have access to some material or some free machine time. For the block alone (head's going to be expensive too because as you see the cost is not in the material).

Opensource for projects which don't use expensive physical assets is great, but it get's really hard when physical assets are involved. Take megasquirt for example. Very little hardware expense in the big picture so it's easy to group design the thing, If bobby want's to add data logging and is one of the major contributors to the project it's no skin off anyone else's back if he writes the code because the hardware increase is $15. However with an engine if bobby is the lead draftsman and tool path designer and he wants to run a dry sump system rather than a wet sump guess who just got saddled with having to afford a $300 dry sump pump, simply because the guy who makes the tool path wouldn't do it if he couldn't get that feature. Now expand that problem to your fluid dynamics guy who want's to make sure the block mates to a T56 because he want's a six speed, but you want a T5 because you'd rather spend $300 on a transmission than $1300 on a transmission and you are the guy with the access to the cheap bulk aluminum.

If you want to machine a block yourself do it. Don't [ame="http://en.wikipedia.org/wiki/Design_by_committee"]design by committee[/ame]. Planes that are designed by committee don't fly.

[Morfeus17]

Good stuff. How much can that motor with all the trimmings hold up; 2000+ HP?

Thats impressive RND.. If that was a S50/52 Motor; it would run about
500K

[sirzepp]

Love it!

Anyone dare estimate the price breakdown(material cost + machine time + sleeving) on the CNC'd block? An open sourced bulletproof billet engine is a childhood dream....

The linked thread points alludes to: http://www.bulletcylinderheads.com.au/billetblocks.php

Who happen to make 2JZ billet blocks...


The 4-cylinder apparently is around $8,000 AUD [$7,975 usd] and the 6-cylinder $11,000 [1]



[1] http://www.driftworks.com/forum/tech...r20-rb-jz.html

$11k doesn't sound that bad, actually. Yeah, I know that's JUST the block...but I expected a lot more $$$.

[wazzu70]

There was an article in Racecar Engineering a month or two ago about a guy who built his own V8 2.0L engine in his "garden shed" aka garage for us Yanks. He built the engine for competitive hill climbs and based one off the hybusa engine, and one off a Yamaha I believe. Since the head is the part that you aren't going to do easily by yourself, he used OTS ones and cast his own block. The block does not need to be billet by any means unless you are only making a very small number of them.

Basing an engine off common parts that have a huge aftermarket following is the ticket. Its not that crazy of a thing to do though if you are smart about it. You could design and manufacture your own engine for less than some people pay a shop to use OTS internals and rebuild/modify an existing motor. Of course you need to have the knowledge of what to do which is what most people lack.

Engine is called the YV8 for the Yamaha and it made 380bhp @ 13000rpm, 172 lb-ft @10500rpm. Cost is about ₤25,000.

Still, this build was not really about being sensible It is awesome though. If you have the means and the brain power...why not. A lot of things like this are to further a persons quest for knowledge and to try new things rather than be practical.

[sirzepp]

A lot of things like this are to further a persons quest for knowledge and to try new things rather than be practical.

The main reason I enjoy this hobby.

[bimmerrasta]

Would you look at this!
I always enjoy pushing the limit. Just wish I could afford it.

[05m3smg]

those piks have me doing this

[milKt]

those piks have me doing this

Pump away, my friend....
pump away.

[LukeG]

great gif haha

[obnoxious2]

WOW. That is pure non STI sex. I wonder what a triple ball bearing turbo is like haha.

edit* just took a quick browse thru that thread. Seems like he knows a whole lot about turbo and engine efficiency. Be interesting to see his test results with the GTX turbos.

[rt turbo]

This is kinda like:
[ame]http://www.youtube.com/watch?v=oavMtUWDBTM&feature=player_embedded[/ame]

[Volf]

I've worked on some pretty big Cat engines in my day. And that turbo is bigger than anything I've ever seen stuffed into a piece of heavy machinery.

[JJM345]

holy fuck, that is badass!

[nuvola rossa]

extreme tuners rod:


2006 V10 Corsworth F1 rod Pankl:

[turbo325ii]

WOW! Would you look at this... Just look at it... hahaha

[RomanTaylor]

That's awesome!

[Hova]

WOW! Would you look at this... Just look at it... hahaha

Just look at it.

[bmwm1128]

...that's big money right there. It's my dream to work on something like that. Wow.

[DKING 528e39]

Imagine a V8 design

[MrBlonde]

Imagine a V8 design

http://www.youtube.com/user/nelsonra...17/DRSugcmEaYo

[douglee25]

Nelson builds some serious power.

Doug

[Colby Colbs]

They haven't realized they've had an economic crisis yet

Who hasn't realized there's an economic crissis?!

[milKt]

Someone pass me the poor person
to wipe my face.