you built the whole freaking car!!!!!!! this is amazing!!! makes all of us that do our little mods look like absolutely nothing! dude you are freaking crazy and should get a spot on stanceworks!!

Indeed, S4 Turbo


There is no special synchronisation feature, everything is machined accurately enough that all rotors recieve pretty much the same amount of air at idle.


No, I am not worried about that. The engine will suck at partial throttle response, but it won't be because of the slide throttle being close to the intake port :icon_tup:

Oh my good Lord above! lol.. WOW! This is an amazing build thread!

Mazda, Suzuki and Norton (prolly other's as well) found it was best to have throttle plates as close to the trochoid surface as possible... John knows his stuff!!

Keep up the good work!!

First time on this forum in a few years. Wanted to subscribe to this thread.

Beautiful work!

I'm up in the Stockholm area working for Scania and was thinking of making a trek to Netherlands at some point. Care to do a show and tell for a stray American sometime in the future?

Cheers,
Zach

wow thats all i can say..

That is plane freaking awesomeness!! subscribed man keep the updates please!

in for updates!!

Sorry, haven't done a whole lot on the 4-rotor in the last few weeks. I did do some work on the slide throttlebody, it's got a sliding TPS sensor and connector now, but nothing huge.

It might be a bit off-topic but I've been doing some work on my broken down bmw that threw a few rods a while ago because driving the FD around every day sucks! Unfortunately working on the BMW is taking a little bit longer than I thought :scratch:, some FC parts found their way into the e30 engine bay and it took some effort to make the FC parts work with the e30 engine

https://lh5.googleusercontent.com/--...o/CIMG3679.JPG


The car does run at the moment, but it runs like crap. I've got it running on liquid propane, and it's a very old system with a vaporiser and a mixer. Combined with the turbo it doesn't work very well. I've had it dialed so that it would run under full load, and it feels pretty fast at 0,7 bars of boost :nod: but I've just about had it with the propane so I'm ditching that and fitting some fuel injectors, a pump, regulator and a very simple ems. Got some dual tower coilpacks and a spare FD coil igniter so I might ditch the distributor aswell.

ROFLOL, you needed good parts to turn a "bad" car into something good :p

impressive
 

thats quite an interesting project,excellent craftsmanship.

:lol:, must be that silly ass left hand shifting. that just can't feel right!!

god this is some amazing work

Man good work wish I had a 4 rotor!

I'd say, finish the 4-rotor...
What can be more interesting than a home made, low cost but cleverly designed rotor beast?
Huh?
Huh?
Huh?

Ok sorry, we're just waiting...that's hard!
Hope you're on-topic soon John! ��

Grtz Dennis.

My friend Nick showed me this thread in April. I glad I finally found it again and got a good look. Great work so far, very fascinating.

Awesome work , love your project !

So when are you going to work for Mazda and design the next rotary supercar?

Well it's not that offtopic, there are tons of FC parts under that hood :nod:
Your right though, the 4-rotor will be awesome! But after 1,5 years of spending every spare hour on this thing it was kindoff nice to take a step back and just mess with something else for a while. The e30 is perfect for this, because nothing needs to be nice or pretty, and everything can be ghetto but it doesn't matter because the car doesn't care one bit.

But anyway, I did pick up work on the FC :). First I messed some more with the slide throttle body because it still wasn't working perfect, the aluminium sliding plate with the bearings worked fine, but when everything was assembled there still was some binding here and there. It's all working fine now, also added an idle adjustment screw.

The exhaust also needed some work, because there weren't any o2 sensor bungs in there. I added 5 of them, one just after the collector which is going to be used all the time, and one for each rotor, which allows me to mount a second o2 sensor and check for AFR differences between rotors.
Also mounted the waterpump and injectors


Injectors and rail mounted :nod: 4x ID1000 injectors supply fuel. Also note the viton o-rings on the intake tubes, they seal up the intake

https://lh5.googleusercontent.com/-x...o/CIMG3722.JPG


The engine at the end of the evening

https://lh5.googleusercontent.com/-E...o/CIMG3735.JPG

wow

That is awesome. Love the intake

New desktop background!

Still so neat!

Sick :)

But I thought it was going to variable length on the intake tubes?

@havoc: maybe in the future :)