Making My Own Rotary Engine?
11-24-2003, 02:38 PM
#11
Senior Member
Join Date: Aug 2002
Location: Mike is a Liar!
Posts: 4,848
the inner most layer on the rotor housings have a sort of sleeve.. or treated surface.. this makes them resist. if you go the racing beat site they explain how they treat their alum side housings..
as you can see in the Link Treceb Posted for me Above.. Thanks for doin all the hard work 13b...
as you can see in the Link Treceb Posted for me Above.. Thanks for doin all the hard work 13b...
11-24-2003, 02:40 PM
#12
to infinity & beyond, me
Join Date: Aug 2001
Location: santurce
Posts: 5,124
Originally Posted by 75 Repu' date='Nov 24 2003, 03:38 PM
the inner most layer on the rotor housings have a sort of sleeve.. or treated surface.. this makes them resist. if you go the racing beat site they explain how they treat their alum side housings..
11-24-2003, 06:11 PM
#13
Senior Member
Join Date: Nov 2002
Location: Colorado Springs
Posts: 1,679
The rotors are core cast for oil flow through them.. (i think)
Jim Downing and Eric Barret make their own side housings in georgia, you can see jim's 4 rotor car scream away at grand-am and American Lemans events. Barret's motors are 1,2 &3 rotor turbo
I hope you work in a VERY elaoborate shop for that type of fabrication, and you have a motor dyno to develop the motor
Jim Downing and Eric Barret make their own side housings in georgia, you can see jim's 4 rotor car scream away at grand-am and American Lemans events. Barret's motors are 1,2 &3 rotor turbo
I hope you work in a VERY elaoborate shop for that type of fabrication, and you have a motor dyno to develop the motor
11-24-2003, 07:30 PM
#14
Senior Member
Join Date: Jan 2003
Location: Perth, Western Australia
Posts: 267
Aluminium isn't widely used as it wears alot quicker than iron, even when hardened. The face that the apex seals rub on needs to be very hard and low friction (i.e. porous chromed steel), which surpisingly is what Mazda have used!
1Revvin7, why not just get a couple of 13BT's and join them together? You could use your engineering prowess to much better effect than trying to remake what Mazda have spent four decades getting right....
1Revvin7, why not just get a couple of 13BT's and join them together? You could use your engineering prowess to much better effect than trying to remake what Mazda have spent four decades getting right....
11-25-2003, 11:22 AM
#18
Senior Member
Join Date: Jun 2003
Posts: 161
I think the intermediate housing would be easy to replicate. All you have to do is get an aluminum block, approximately 12x12x2 inches, and machine it. Afterwards, send it out for plasma coating. You can get aluminim blocks at most metal scrap yard. A local place here sell them for 75 cents a pound. A block this big is about $35. Machining cost would be much more though.
The end housings are entirely different since engine coolant has to make u-turns, thus the housing must be cast. This option is unrealistic for DYI.
So for a 2 rotor engine, the weight savings would be about 15 pounds from the intermediate housing. But for a 20b, you can save as much as 50 pounds since it uses 2 intermediate housings. One of the housing is much fatter than the other.
If I had time, I would definately look into making my own intermediate housings for my 20b.
An
The end housings are entirely different since engine coolant has to make u-turns, thus the housing must be cast. This option is unrealistic for DYI.
So for a 2 rotor engine, the weight savings would be about 15 pounds from the intermediate housing. But for a 20b, you can save as much as 50 pounds since it uses 2 intermediate housings. One of the housing is much fatter than the other.
If I had time, I would definately look into making my own intermediate housings for my 20b.
An
11-25-2003, 01:36 PM
#20
Senior Member
Join Date: Nov 2001
Location: Bay Area, CA
Posts: 7,316
Originally Posted by epion2985' date='Nov 25 2003, 11:31 AM
how can there be an intermediate housing on a 2 rotor? there are only 2 housings... Do you mean the iron between the housings?