The most rare rx-7?
Originally Posted by Madrx7racer
any more info on those?
"Mazda's early multi rotor engines had problems due to the design of the eccentric shaft. When this was overcome in the mid 1980s, Mazda started to build them mainly for racing. However the engineers tried several modified production cars with these engines. Firstly a 1st generation RX-7, then in 1988 (the RX-7's 10th anniversary) a 2nd generation RX7. This car was taken to the USA (Mazda's biggest market), for a number of automotive writers to evaluate. This caused speculation that a multi-rotor RX-7 may well be produced.
The car pictured below was fitted with a naturally aspirated 3 rotor engine, which probably would have been a 13G 3 rotor engine (Note that the 13G was never used in any production cars, however the related 20B was).
As the 13B 2 rotor fitted to the RX7 of the day was 654cc x 2 rotors = 1308cc, 146bhp@6500rpm , 187Nm(138lbft)@3500, one would speculate that the 13G with 654cc x 3 rotors would make 220bhp/280Nm(207lbft) at the same RPM, however this is only an estimate."
http://cp_www.tripod.com/rotary/images/pg25_10b.jpg
http://cp_www.tripod.com/rotary/images/pg25_11b.jpg
Notice the familiar-looking BAC valve.
Originally Posted by Bukwild
I would say a turbo swapped vert. Can't be a hundred in the US
there cant be more then a dozen if more than 1 in the entire USA.
Originally Posted by NZConvertible
From Craig's Rotary Page:
"Mazda's early multi rotor engines had problems due to the design of the eccentric shaft. When this was overcome in the mid 1980s, Mazda started to build them mainly for racing. However the engineers tried several modified production cars with these engines. Firstly a 1st generation RX-7, then in 1988 (the RX-7's 10th anniversary) a 2nd generation RX7. This car was taken to the USA (Mazda's biggest market), for a number of automotive writers to evaluate. This caused speculation that a multi-rotor RX-7 may well be produced.
The car pictured below was fitted with a naturally aspirated 3 rotor engine, which probably would have been a 13G 3 rotor engine (Note that the 13G was never used in any production cars, however the related 20B was).
As the 13B 2 rotor fitted to the RX7 of the day was 654cc x 2 rotors = 1308cc, 146bhp@6500rpm , 187Nm(138lbft)@3500, one would speculate that the 13G with 654cc x 3 rotors would make 220bhp/280Nm(207lbft) at the same RPM, however this is only an estimate."
http://cp_www.tripod.com/rotary/images/pg25_10b.jpg
http://cp_www.tripod.com/rotary/images/pg25_11b.jpg
Notice the familiar-looking BAC valve.
"Mazda's early multi rotor engines had problems due to the design of the eccentric shaft. When this was overcome in the mid 1980s, Mazda started to build them mainly for racing. However the engineers tried several modified production cars with these engines. Firstly a 1st generation RX-7, then in 1988 (the RX-7's 10th anniversary) a 2nd generation RX7. This car was taken to the USA (Mazda's biggest market), for a number of automotive writers to evaluate. This caused speculation that a multi-rotor RX-7 may well be produced.
The car pictured below was fitted with a naturally aspirated 3 rotor engine, which probably would have been a 13G 3 rotor engine (Note that the 13G was never used in any production cars, however the related 20B was).
As the 13B 2 rotor fitted to the RX7 of the day was 654cc x 2 rotors = 1308cc, 146bhp@6500rpm , 187Nm(138lbft)@3500, one would speculate that the 13G with 654cc x 3 rotors would make 220bhp/280Nm(207lbft) at the same RPM, however this is only an estimate."
http://cp_www.tripod.com/rotary/images/pg25_10b.jpg
http://cp_www.tripod.com/rotary/images/pg25_11b.jpg
Notice the familiar-looking BAC valve.

Do you have any other links to the pictures? Those don't seem to work for me. I heard someone down under just bought an original 13G from Japan. Pretty bad ***. Here is the only link I have for info on the 13G motor: http://cp_www.tripod.com/rotary/pg19.htm
- Steiner
there is a black gtus sitting in a junk yard in winston nc
dont know the year roof was dented in kinda pissed me off
i was thinking of going down there and asking the year
it was a decent car until some *** jumped on the roof
thats what it looked like anyway would it be worth fixing ?
dont know the year roof was dented in kinda pissed me off
i was thinking of going down there and asking the year
it was a decent car until some *** jumped on the roof
thats what it looked like anyway would it be worth fixing ?
What about that blue and white FC that I see pics of around here... I think its a Halsmersport GTO... read somewhere there was one race car and one street car... can anyone verify this?
Originally Posted by Nismonic
What about that blue and white FC that I see pics of around here... I think its a Halsmersport GTO... read somewhere there was one race car and one street car... can anyone verify this?
I'll try and find the link.
i have a 90 GTUs has 78,068 miles on it today. the paint on it is shitty and there are a few dents so its no perfect...yet. it also needs a rebuild, but it runs and what more could you ask for! (at the cost of 2 gallons of antifreeze a week)
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toplessFC3Sman
2nd Generation Specific (1986-1992)
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Mar 20, 2018 01:54 PM








