Newbe with RX3 project car
12-29-2005, 02:54 PM
#1
Junior Member
Thread Starter
Join Date: Nov 2005
Location: Canadian West Coast
Posts: 7
I'm new to this forum. I have a 73 RX3 that I had been keeping stock up til now. The 12a twin dizzy in the car now has a seized apex seal. I am going to upgrade the car as part of repowering it.
Most of the rotary heads in my neck of the woods are RX7 fans. Not many RX3's to be found. Ive down graded my planned from a 13bt with a ford 9 inch, to a much more simple conversion.
I stumbled on a older 12a bridge ported engine with 6 mm apex seals. This engine has been overheated but between this motor and the one in the car I'm hoping to build up a good runner. I already have an RX7 diff with LSD. I plan to change over the LSD and disk brake system to the RX3 dif.
I'm looking for advise on the 6mm apex seals and suspension upgrades(shocks, springs sway bars etc.).
Pics of the car attached.
Thanks
Most of the rotary heads in my neck of the woods are RX7 fans. Not many RX3's to be found. Ive down graded my planned from a 13bt with a ford 9 inch, to a much more simple conversion.
I stumbled on a older 12a bridge ported engine with 6 mm apex seals. This engine has been overheated but between this motor and the one in the car I'm hoping to build up a good runner. I already have an RX7 diff with LSD. I plan to change over the LSD and disk brake system to the RX3 dif.
I'm looking for advise on the 6mm apex seals and suspension upgrades(shocks, springs sway bars etc.).
Pics of the car attached.
Thanks
12-29-2005, 05:18 PM
#4
Junior Member
Thread Starter
Join Date: Nov 2005
Location: Canadian West Coast
Posts: 7
I'm planning on using the 45 twin webbers mounted on the car now. It performed very strong with the stock 12a (much better than the 600 Holly I tried before). I understand the 45 webbers will work fine with the bridge port. Would this set up work with nito as well???
12-30-2005, 09:50 AM
#7
Junior Member
Thread Starter
Join Date: Nov 2005
Location: Canadian West Coast
Posts: 7
My understanding was that the original 12a's in the RX3 were all 6 mm apex seals. I beleive they had durability questions. I think I can change over the rotors in a rebuild to a 2 or 3 mm apex seal, but I'm not sure if its cost effective. I think I want to play with this bridge ported core. Rebuilding one of these engines looks like an interesting challange, a good excuse to purchase a few presicion tools and use them. I'm trying to get a realistic idea of the task at hand before I dive into it. Iv'e been through a number of piston engine rebuilds, I don't know anybody who's put a rotary together and had it make power!!
Anybody put your own motor together out there?
Anybody put your own motor together out there?
12-31-2005, 03:18 AM
#10
Senior Member
Join Date: Jan 2004
Location: Columbia IL/St. Louis MO
Posts: 2,748
Originally Posted by edsrx3' post='790856' date='Dec 30 2005, 10:50 AM
My understanding was that the original 12a's in the RX3 were all 6 mm apex seals. I beleive they had durability questions. I think I can change over the rotors in a rebuild to a 2 or 3 mm apex seal, but I'm not sure if its cost effective. I think I want to play with this bridge ported core. Rebuilding one of these engines looks like an interesting challange, a good excuse to purchase a few presicion tools and use them. I'm trying to get a realistic idea of the task at hand before I dive into it. Iv'e been through a number of piston engine rebuilds, I don't know anybody who's put a rotary together and had it make power!!
Anybody put your own motor together out there?
Tons of people have, my suggestion is to READ!! Alot! I am still learning new things to this day. Not like I have learned much though.
Good luck.