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The german rotary-guy - The Project
Posted: Fri Dec 21, 2012 2:00 am
by Rhänne
Hi there,
to introduce the first part of the project I used my Introduction-Thread.
If you want to read/see how the whole story started click here
http://www.311s.org/phpBB3/viewtopic.ph ... 38#p150938
I want to use this thread to add the most things which happen to me and/or the project.
After the first part there will come another before Christmas - maybe already in some hours
So stay interested!
All questions, feedbacks and something else are welcome! Doesn´t matter if post or PM

Re: The german rotary-guy - The Project
Posted: Fri Dec 21, 2012 3:26 am
by DanR
Good luck with your project René, looks like you have a bit of work ahead of you.
Re: The german rotary-guy - The Project
Posted: Sat Dec 22, 2012 4:52 am
by Rhänne
In my introduction I ended with cracks on the manifold and the turbo. In fact of the costs of a new turbo I want to save it.
Otherwise the manifold was not needed, more later. All guys from RX7club assert me that this "small" cracks won´t make trouble untill they are so big that they leak - crazy thing and crazy guys - love them
In the beginning of 2012 I take the car to another friend who has a crane in his garage. I welded some bars between the A-pillar and the point where the B-pillar normally is. So I could go trough the body with some crane belts and lift the body from the chassis.
Then I blasted the chassis with all parts installed , because they will be renewed. But I don´t want to work on a very very dirty chassis in my new plastered and painted garage
Some times later I could take the car home to my parents in the garage ...
And here it is the home for the body
Wankel in the chassis
Okay now it was in the chassis but not on motor mounts. As you can see it was very difficult to adjust the engine for a good position in the engine bay. So I built a woodden engine bay "mock-up"
In the next picture you can see how
MUCH space there was on the left side in the front
and how much on the right side .. but there I needed to install the manifold..... and anywhere the turbo.
The room in front of the engine is enough to install a new radiator, shraud and a high-performance fan ... and maybe the turbo
Here you can see how perfect the original driveshaft from the RX7 fits
I ordered a new manifold from ebay (*ironic* hey best quality *ironic*)
In the end I only used only the steel plate and made the holes wider that the arch would fit...
some arch(es) and tubes later:
Edit: 2012-12-23
To assemble the turbo I ordered a watercut flange plate without twinscroll
When I now assemble the manifold I can adjust the engine to the best position and make engine mounts
Before you ask... yes, there are some holes which I have to fill

Re: The german rotary-guy - The Project
Posted: Sat Dec 22, 2012 10:10 am
by S Allen
Wow, you are a busy guy. Looks like you just might know what you are doing. I like the mock up of the engine bay so you can get the engine and its components to fit properly. This is going to be a fun project to watch. Keep the updates and pictures coming.
Steve
Re: The german rotary-guy - The Project
Posted: Sat Dec 22, 2012 10:55 am
by Bob2
The shift lever looks like it is farther back than original. Have you measured its location and compared to original?
Bob
Re: The german rotary-guy - The Project
Posted: Sat Dec 22, 2012 11:09 am
by Linda
As we say in the US, you have mad skillz ! Keep up the good work on your project.
Linda
Re: The german rotary-guy - The Project
Posted: Sun Dec 23, 2012 3:29 am
by RCMike
Looking forward to seeing this happen.. Love the idea, and the sound should be wicked..
The Powertrain
Posted: Sun Dec 23, 2012 5:29 am
by Rhänne
The Powertrain
To bring all this power the turbo 13B hopefully will produce

to the street I want to use a RX7 FB rear end with disc brakes.
I ordered one from Austria ... This was the only one which was on the market at this time.
When I disassempled the rear end an open diff looked at me ..
Some time later I found one on eBay from the USA. I asked if he would send it to Germany ... no answer. Because it wasn´t expensive I won the auction ... then he answered that he didn´t like to ship it to Germany, but it was the third auction and he want to let this part go. Some weeks later I got this 5000 miles old 4.77 clutch disc LSD.
Another point was the bolt circle of 4x114,3 which is very rare. A bolt circle of 4x100 would be perfect. So many wheels and other parts which I could use.
When I change from 114,3 to 100 I would need a new wheel hub and a new brake system.
After some time of considering about which OEM parts I could use I find out that the BMW 3-series E30 has 4x100. After some search I found someone who is trading with a big brake setup. He uses 284x22mm discs from Alfa at the front and 258x10 in the rear combined with the calipers of the E36. And it will fit under 15" wheels!
So I took care of a set of E36 calipers which were really really big when I opened the package
hmmm... in this picture they doesn´t feel like so much bigger as the originals.
Don´t know the cylinder dimension of the original but the E36 has 54mm
For designing the new parts I disassembled one front side, measured the single parts and made a part modell in CAD. Later I will assemble the parts in CAD and will get measurements. These measurements I can use when I build the new parts in CAD. After that I can design a new hub and a new mountig plate for the big calipers. It´s easy, isn´t it?

Re: The german rotary-guy - The Project
Posted: Sun Dec 23, 2012 5:34 am
by Rhänne
Thanks @ all for your comments
Bob2 wrote:The shift lever looks like it is farther back than original. Have you measured its location and compared to original?
Bob
Yes I measured it, and in my thought it was not much more farther back ... but it is some time ago and I forgot the measurements but I can measure it again, no prob

Re: The german rotary-guy - The Project
Posted: Mon Dec 24, 2012 6:47 am
by sleepyzzz
S Allen wrote:Wow, you are a busy guy. Looks like you just might know what you are doing. I like the mock up of the engine bay so you can get the engine and its components to fit properly. This is going to be a fun project to watch. Keep the updates and pictures coming.
Steve
X2 that is a great idea to set up the engine bay with cardboard so you get the height and spacing right. i like your work, and enjoying your posts.
keep the updates and pictures coming.
Re: The german rotary-guy - The Project
Posted: Mon Dec 31, 2012 11:52 am
by peter
Man, what a great work, When I see what you do with welding, chapeau.
Re: The german rotary-guy - The Project
Posted: Mon Feb 11, 2013 12:55 am
by jcd0402
WOW your welding skill are nice, wish i could do some like does. I also like that you stated in your introduction that you studied mechanical engineering. Also does the 13b weight more that the original r16? Keep up the good work and good luck.
Re: The german rotary-guy - The Project
Posted: Mon Feb 18, 2013 1:49 am
by Rhänne
hey jcd0402,
thank you!
Don´t know the weight difference between the engines. What would be the weight of the R16 or the 2litre with tranny.
Because I can only weigh the 13B with tranny.
Where can I get new weatherstrip?
I know Datsunlandsocal and Datsunparts.
Datsunlandsocal:
good price, quality??? , some say bad service
Datsunparty
mid - high price, good quality?? , service outside USA .. okay
Re: The german rotary-guy - The Project
Posted: Tue Feb 19, 2013 7:10 pm
by jcd0402
Don't trust me on this one. Wikipedia stated that a r16 engine weights 147kg/324 lbs. So whats your main goal for this car? To make into a dragster car or a auto-x car? I'll have to say into a dragster cause of the LSD, and the turbo you've talked about.
Re: The german rotary-guy - The Project
Posted: Sun Mar 24, 2013 5:04 am
by peter
#Rhanne, It's quiet for a time, how does goes with your project?