Go Back   Rotary Car Club > Tech Discussion > Old School Rotary (Pre-1979)

Old School Rotary (Pre-1979) Pre-1979 Discussion including performance modifications and technical support sections

Reply
 
Thread Tools Display Modes
Old 04-18-2010, 10:32 AM   #1
kbken62
The Newbie
 
Join Date: Apr 2010
Posts: 2
Rep Power: 0
kbken62 is on a distinguished road
What are you going to do for brakes and rear end?
kbken62 is offline   Reply With Quote
Old 05-22-2010, 12:15 AM   #2
Stredrotor
Rotary Fan in Training
 
Join Date: Nov 2009
Location: Tasmania, Australia
Posts: 53
Rep Power: 16
Stredrotor is on a distinguished road
Quote:
Originally Posted by kbken62 View Post
What are you going to do for brakes and rear end?
Not sure yet, like to have a good disk brake setup.




Here's a bit of an update not much but it's one step at a time .

Lashed out on a Westside Exhaust and Custom radiator and oil cooler combo.


Also a PWR barrel cooler, heat exchanger, filler spout and water pump I scored for a good price off ebay.



Now have to make some mounts for the radiator and heat exchanger and plumb up the barrel cooler.

Getting there ever so slowly.

Last edited by Stredrotor; 05-22-2010 at 12:17 AM.
Stredrotor is offline   Reply With Quote
Old 05-29-2010, 03:49 AM   #3
Stredrotor
Rotary Fan in Training
 
Join Date: Nov 2009
Location: Tasmania, Australia
Posts: 53
Rep Power: 16
Stredrotor is on a distinguished road
Found a bit of time this arvo, so with the mounts welded on I mounted the radiator and made some trial mounts for the heat exchanger radiator.

Also had a bend welded onto the end of the barrel cooler to bring it in line with the radiator.





Waiting on a 135 degree bend from plasmaman to go up to the throttle body to finish it off the intake side.

.
Stredrotor is offline   Reply With Quote
Old 06-19-2010, 05:21 AM   #4
Stredrotor
Rotary Fan in Training
 
Join Date: Nov 2009
Location: Tasmania, Australia
Posts: 53
Rep Power: 16
Stredrotor is on a distinguished road
Shaping the end of the tube to match the chopped off snout.



Trial fit up.



Spent a few hours sanding out the casting marks on the snout and the hammer marks on the tube.





Now just have to get my mate Troy to weld the pipe and snout together. (Don't have an AC tig to do Aluminium)
__________________
RX4 coupe 20B conversion http://www.rotarycarclub.com/rotary_...ead.php?t=9884
Stredrotor is offline   Reply With Quote
Old 06-19-2010, 05:29 AM   #5
Stredrotor
Rotary Fan in Training
 
Join Date: Nov 2009
Location: Tasmania, Australia
Posts: 53
Rep Power: 16
Stredrotor is on a distinguished road
Hey guys, today I moved the wastegate outlet which fouled on my new radiator .

Cut it off and shortened it........



Then welded it up!




The pipe from the barrel cooler to throttle body now welded.



I made a mount for the coils. I think they should work there .



Here's a pic of the dump pipe, just tacked up at the moment. When I get the lower flange cut and tacked I can see if the flange will fit past the engine and steering box .
Then I can weld that up as well.

__________________
RX4 coupe 20B conversion http://www.rotarycarclub.com/rotary_...ead.php?t=9884
Stredrotor is offline   Reply With Quote
Old 10-09-2010, 03:14 AM   #6
Stredrotor
Rotary Fan in Training
 
Join Date: Nov 2009
Location: Tasmania, Australia
Posts: 53
Rep Power: 16
Stredrotor is on a distinguished road
Just a quick update guys, with a few jobs around home keeping me busy I haven't had a lot of time on the old girl. So while I am waiting to get a bit of cash together for the stud kit and the rotors to be machined I have managed to sneak out to the shed a few times. Wore my fingers a few centimeters shorted by sanding and polishing the intake manifold and throttle body snout.



Still needs another sand I think to get a few more scratch marks out. It's not going to be any show car but I always wanted a car with an engine bay I was proud of.
__________________
RX4 coupe 20B conversion http://www.rotarycarclub.com/rotary_...ead.php?t=9884
Stredrotor is offline   Reply With Quote
Old 03-11-2011, 11:42 PM   #7
Stredrotor
Rotary Fan in Training
 
Join Date: Nov 2009
Location: Tasmania, Australia
Posts: 53
Rep Power: 16
Stredrotor is on a distinguished road
New update . Purchased a Xtreme Rotaries side mount alternator kit and alternator with twin pulley.



On the down side now have to modify my coil mount as there is slight fouling on the front coil. Oh well that's what ya get when you buy your parts one at a time.
__________________
RX4 coupe 20B conversion http://www.rotarycarclub.com/rotary_...ead.php?t=9884
Stredrotor is offline   Reply With Quote
Old 04-23-2011, 09:08 PM   #8
Stredrotor
Rotary Fan in Training
 
Join Date: Nov 2009
Location: Tasmania, Australia
Posts: 53
Rep Power: 16
Stredrotor is on a distinguished road
Bit of an update, I cleaned up the dash, rust converted and primed the dash frame. Also stripped and repainted the steel cover panel.




Also after finally after getting my TIG back (well they replaced it ) I got around to welding the exhaust probe bung in and shaping the dump pipe to give a bit more clearance for the steering box.




Should be able to send it off to get ceramic coated now!
__________________
RX4 coupe 20B conversion http://www.rotarycarclub.com/rotary_...ead.php?t=9884
Stredrotor is offline   Reply With Quote
Old 05-28-2011, 04:04 AM   #9
Stredrotor
Rotary Fan in Training
 
Join Date: Nov 2009
Location: Tasmania, Australia
Posts: 53
Rep Power: 16
Stredrotor is on a distinguished road
Hey Guys, got my exhaust manifold, dump pipe and turbo exhaust housing back from getting ceramic coated.




The finish is not as smooth as I thought it would be but it looks allright. As long as it holds on an keeps a lot of the heat in.

About half way through fabricating the front crossmember so after Monday I will have a break from my studies for 3 weeks so might be able to get a bit more done.
__________________
RX4 coupe 20B conversion http://www.rotarycarclub.com/rotary_...ead.php?t=9884
Stredrotor is offline   Reply With Quote
Old 06-05-2011, 02:57 AM   #10
Stredrotor
Rotary Fan in Training
 
Join Date: Nov 2009
Location: Tasmania, Australia
Posts: 53
Rep Power: 16
Stredrotor is on a distinguished road
Fabricated the front engine mount crossmember...






Should be able to pull the engine out now and throw a whole lot of money at it .

Then start paint stripping the engine bay. The fun begins!
__________________
RX4 coupe 20B conversion http://www.rotarycarclub.com/rotary_...ead.php?t=9884
Stredrotor is offline   Reply With Quote
Old 10-26-2012, 08:28 PM   #11
Stredrotor
Rotary Fan in Training
 
Join Date: Nov 2009
Location: Tasmania, Australia
Posts: 53
Rep Power: 16
Stredrotor is on a distinguished road
A bit more progress!

I have made my rear caliper brackets to adapt the RX7 calipers to fit the Toyota Hilux diff housing.

First I created a CAD model of the diffhousing, axles, bearing and housing, disk rotor and a rough model of the RX7 caliper.


Then I printed a 1 to 1 drawing of the profile an cut it out of MDF.



Then ground out the step down.


When I was happy with the fit I created a DXF file and had them laser cut and had a mate mill the step into them.


And here is one fitted!




I also bought some new rubbers that go top and bottom of the leaf springs. Bought almost the last lot that Mazda had left.
__________________
RX4 coupe 20B conversion http://www.rotarycarclub.com/rotary_...ead.php?t=9884
Stredrotor is offline   Reply With Quote
Old 11-10-2012, 01:19 AM   #12
Stredrotor
Rotary Fan in Training
 
Join Date: Nov 2009
Location: Tasmania, Australia
Posts: 53
Rep Power: 16
Stredrotor is on a distinguished road
I got the laser cut parts back this week so I started work on the 2 link mounts.....

This is the CAD model.


This is the mount for the chassis.


These are the mounts to go on the diff housing.


And here are they all are with a bit of a mockup.
__________________
RX4 coupe 20B conversion http://www.rotarycarclub.com/rotary_...ead.php?t=9884
Stredrotor is offline   Reply With Quote
Reply

Bookmarks

Tags
20b, mazda rx-4


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump


All times are GMT -5. The time now is 05:36 AM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Hosted by www.GotPlacement.com