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2nd Generation Specific 1986-1992 Discussion

differences in engines

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Old 05-13-2002, 08:12 PM
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i decided im gonna get a rx7 with a blown engine, then drop a j-spec or rebuilt. i was planning on getting a 89-91 TII as they have more hp than the earlier modles of the 2nd generation. but if im gonna drop another engine into it, are there any complications on dropping a 89-91 TII engine into a 87+, becasue those are so much cheaper and easier to find. does everything match up and what are the differences between the modles?
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Old 05-13-2002, 08:49 PM
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You'll have to switch the front cover and oil metering pump to the 87-88 style because on 89-91 cars the pump is computer controlled. On 87's it's mechanically controlled. You'll also need to use the 87-88 sensors.
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Old 05-14-2002, 02:19 AM
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You can buy engines that are already ported and modded from Mazdatrix.com. Or used jspec engines from Corksport.com, or FC3S.org.
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Old 05-14-2002, 09:54 AM
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what exactly is a jspec engine?
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Old 05-14-2002, 09:58 AM
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Originally Posted by RX-7Aggie' date='May 14 2002,11:54
what exactly is a jspec engine?
A motor from a Japanese car.
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Old 05-14-2002, 01:08 PM
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typically jspec refers to an engine out of a car from japan that is used and shipped over here to the USA
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Old 05-14-2002, 01:29 PM
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what's better about a jspec engine? i mean, if my engine went out, couldn't i just rebuild it my self, port it using a kit and save some money?
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Old 05-14-2002, 03:34 PM
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Originally Posted by RX-7Aggie' date='May 14 2002,15:29
what's better about a jspec engine? i mean, if my engine went out, couldn't i just rebuild it my self, port it using a kit and save some money?
It's the same as the U.S. motor. People usually say that they have 30 K miles or less, but it's hard to tell when you have a motor with no car.
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Old 05-14-2002, 03:44 PM
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Jspecs save you time and sometimes money, not in my case though



Also, according to Mazda, the Japanese Rx7s had 207HP in 1991...but I believe it had to do w/ emissions or something....
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Old 05-14-2002, 03:55 PM
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Originally Posted by Rotaryman88' date='May 14 2002,17:44
Jspecs save you time and sometimes money, not in my case though



Also, according to Mazda, the Japanese Rx7s had 207HP in 1991...but I believe it had to do w/ emissions or something....
Come on, you can get 7 HP just buy getting a cone intake. :sarcasm:
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