Question about 1988 Mazda RX-7

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How can I tell if my engine is the orginal I had

How can I tell if my engine is the orginal I had it stored and think it was swapped out for this other mazda rx7

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There is a letter and 6 digit number stamped on the top of the front housing. There is a flat inboard of the distributor on pre1986 7's SA/FB. or the eccentric shaft sensor 86/91 FC3S. On the FD3S 93 it is the same flat just this side of the front engine mount when looking at the engine from left side. The six digit number should match the VIN of the car.

Posted on May 04, 2014


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Posted on Jan 02, 2017



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SOURCE: 1988 mazda rx7 turbo

make sure you tune it up well and take your time with it you can all so add a bit of ATF in to the spark plug hole. it help lube yes it going to smoke be it ok.i work on them for a for a living from stock rebuild to full racing.

Posted on Mar 03, 2009


  • 10 Answers

SOURCE: i have a 1989 mazda rx7 convertible automatic with

its not hard at all. as long as your good with your hands. and know the basics of your rx7. other then that everything bolts in. you just need a turbo driveshaft for sure. or they sell a custom driveshaft on so you can keep your N/A differential.

Posted on Apr 25, 2010


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SOURCE: What engines can replace the

I'm in Australia ! I have a 13b turbo in a s4 convertible and a hardtop I'm about to fit a gen 3 chev ls7 427ci v8 into! They have oodles more power on tap and are made of alloy !!! A ford V8 is iron and would throw the balance way out! Not saying the ls7 won't but it will be a lot less of a difference than the heavy ford option! Here in Australia the LS series of engines came in our commodore! Four door family car ! They came in auto or 6.speed ! That's what I'm using! There are kits including extractors crossmembers and everything needed to do it minus a aftermarket ecu to control it all! Then there are turbo/supercharger options! 1200rwhp is very achievable !!!

Posted on Apr 30, 2012


ivan whisker

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SOURCE: What's your problem?1983 mazda rx7 backfires when getting off gas pedal

sounds like the timing is out or the fuel mixture is wrong get a tune up and that will prob sort it

Posted on Oct 25, 2012



  • 7 Answers

SOURCE: recommended oil for a 1988 mazda rx7

Any synthetic oil is ok... just follow mfg recommended oil weights.
One note though... adding synthetics to a dirty engine will only lead to dirty and VERY expensive synthetic oil.
Best to do a 3 change flush with standard oil and Rislone or another brand of engine flush. 3 change, meaning add Rislone, drain and replace 3 times. Driving at least 500 miles between oil changes. This will prep your engine to accept the very expensive yet very good synthetic oil while minimizing contaminants that would reduce the benefits of syn oil.
Hope this helps M8

Posted on Dec 16, 2012

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