The S42 Race Engine !!!!

[swiss318is]

now, i stoped working on my cars for a month. i have exams and i have to pass them, because i hate university!!!after that... serious business!!!:D
i want to strip and prepare (grinding, lightening etc)my whole car before august and let it paint alpinweiss II before september!! during that time i have to powdercoat all the suspension parts, to put the car back on her wheels again!! if anybody wants to visit me.. and help for bbq and beer!give me a call


and go and have a look on a secret place all full of old bmw racecars...?!? and the 320i stw of course too...

[swiss318is]

Sounds good swiss, looks like we might need to collaborate on some things

why not!!:)

[RouteZeroDesign]

I might take you up on that offer
Myself and a few friends are driving across europe in the summer for 2 weeks, so im sure we could stop by switzerland ....
though il be driving the crappy 5 door civic, cant beet the space of a 5 door hatchback:)

My digital dash project took a major leap forward today, i have finally found a motherboard and processor suitable for it....more info later

[swiss318is]

I might take you up on that offer
Myself and a few friends are driving across europe in the summer for 2 weeks, so im sure we could stop by switzerland ....

just give me a call... during summer i can need a few helping hands..!!:D

[Janne]

Wow this is porn! I Want your car:)

Do you have any videos?

[Letsplayskatch]

Wow this is porn! I Want your car:)

Do you have any videos?

Welcome to the forum.

Who's car do you mean?

[Janne]

Thanks! i mean that S42..

[swiss318is]

Wow this is porn! I Want your car:)

yes, it is porn!!! and i want that car too...
the thread is self-explaining..you have to read it..!!its obviously not my car..

[mkodama]

Colin-
E30_4cyl-
I didnt want to say this too early, so as not to let people down, but im in the process of building carbon fiber parts myself.

Im studying Product/Industrial design in college and i have been using carbon allot lately, so i will start making cf car parts over the summer.
I will be building them for my own project but i could do some batch production if there is a need for it.
On the list so far is:
M42/44 Carbon fiber valve cover
Carbon fiber plenum for use with m3 throttle bodies
Carbon fiber airbox/airscoop to be mounted behind the front grille ( a flexible hose will connect this to the plenum)
E36 carbon fiber interior panels
And a few more secret things that will be revealed later

There are still some details to sort out about the parts but i will sort them out closer to the production time ( at the moment i'm sourcing materials)

Any other parts that you guys want i will see if i can make them.

You've got my interest.  Would you be willing to share designs and production processes for the items?

hihihi.. me too!!!!:D

hihihi... me three!!!!:D

i was thinking on that... a direct bolt on ITB with carbon airbox for the m42!

Someone needs to design and build a slider throttle body setup now too...

But please dont charge through the arse for it

That's just like asking for a cheap diamond ring!:p

now, i stoped working on my cars for a month. i have exams and i have to pass them, because i hate university!!!after that... serious business!!!:D
i want to strip and prepare (grinding, lightening etc)my whole car before august and let it paint alpinweiss II before september!! during that time i have to powdercoat all the suspension parts, to put the car back on her wheels again!! if anybody wants to visit me.. and help for bbq and beer!give me a call


and go and have a look on a secret place all full of old bmw racecars...?!? and the 320i stw of course too...

I might be in France this summer somewhere around Lac Annecy, which is conveniently not too far of a drive from Switzerland!

[mkodama]

Oh yeah, and I got to see (and take a picture) of pretty much the current day version of the E36 STW.  It also had a 2.0 liter 4 cylinder engine.

320si

Sadly, I didn't get to take many pictures.  To busy with working on another car.

[swiss318is]

Someone needs to design and build a slider throttle body setup now too...

i know.. i have to take a slider from a s14 engine and then have a look what i have to change.. i dont think that it is too complicated to duplicate one on a cnc mill.. :confused:

I might be in France this summer somewhere around Lac Annecy, which is conveniently not too far of a drive from Switzerland!

let me know..

[RouteZeroDesign]

Slide throttle bodies are good, but only for full on racing engines, and even then, F1 still uses butterfly valves.

The advantage is that, when at full throttle, there is nothing blocking the intake path.
But the disadvantage is that they arent very sensitive to throttle modulation.
Have a look here
http://e30m3performance.com/tech_articles/engine-tech/dtm_slides/index.htm

Mkodoma

You've got my interest. Would you be willing to share designs and production processes for the items?

As far as sharing designs go, most of the parts are only in the design stage at the moment, and for the ones that i have prototypes made, they are very rough at the moment, and still need development work.

I could, in theory, start producing some parts at the moment, but they would not be fully developed... And I 100% REFUSE to produce something that i wouldnt be happy receiving myself, especially with expensive parts.

I've seen far too many times, companies trying to get their product onto the market quickly, and then 6 months later bringing out an improved version.
Leaving the customers who bought the early model feeling hard done by.

When i do start selling the parts, they will be of a quality that im happy with, i guess that is the advantage of building parts for yourself.
Also, im not relying on selling these parts as a source of income, so when they are perfect i will sell them, not before.
I hope you understand, this is for everyones benefit;)

As far as the process goes (i assume you mean the process of producing carbon fiber parts), id be happy to help you out wherever i can or point you in the direction of information.

That's just like asking for a cheap diamond ring!

Well the parts certainly wont cost anything like diamonds
Unless you were making a joke about diamonds and carbon
(Diamonds are made of Carbon atoms with 4 single covalent bonds each)

I'll try keep costs as low as possible, after all this has been a project greatly helped by the m42/44 community, so it would be unfair to start charging the community astronomical amounts of money for parts they helped develop

-Paul

[mkodama]

Slide throttle bodies are good, but only for full on racing engines, and even then, F1 still uses butterfly valves.

Well the parts certainly wont cost anything like diamonds
Unless you were making a joke about diamonds and carbon
(Diamonds are made of Carbon atoms with 4 single covalent bonds each)

I'll try keep costs as low as possible, after all this has been a project greatly helped by the m42/44 community, so it would be unfair to start charging the community astronomical amounts of money for parts they helped develop

-Paul

Haha, I didn't think of the fact that diamonds and carbon are the same thing.

I'm still kinda curious why slide throttles don't provide good throttle response.

[RouteZeroDesign]

Carbon has to be one of the greatest elements.
From it we can get carbon fiber, which has an incredible strength to weight ratio.
Graphite, which is a self lubricating conductive metal
Diamonds, which are the hardest thing on earth
Carbon dioxide used for photosynthesis, although too much Co2 is bad
And a whole host other shit that i cant be bothered listing

Im not sure of the reason why slide throttle dont give as good modulation as butterfly valves, i think it has to do with the shape of the intake port as they are opening up.
Yes, they dont impede the port at all at full throttle, but at part throttle, the entrance into the runner is offset greatly to one side of the intake runner. This might have something to do with it.
Also there is a much large area of friction with the throttle plate running inside the mechanism as opposed to the small pivot area of the butterfly valves.

I dont know about their responsiveness, im sure its pretty good tbh, but its the modulation that id be worried about.
It really depends how you like to apply the throttle.

I remember from an F1 article with ferrari, they were describing how they set up the pedals for schumacher and barracello.
Barracello liked his pedals to be basically on or off, whereas schumacher like his to be really sensitive, with much more resolution in throttle position.
Just shows that two very experienced drivers can have very different tastes for throttle modulation.

[strypt]

The reason that the slide throttle are hard to modulate is because the intake runner area increases/decreases greatly at some positions. Friction shouldn't be much more than a conventional throttle if the slide throttle is designed properly with bearings but maintenance/greasing is much more important. I'll see if I can find a good photo of one design.

Edit: Found a page but only thumbnail photos, the bigger ones does not seem to work? One good pic on the frontpage though http://www.scheel.ch/ its under "Motorsportteile".