Mazda RX-7 Starting in the 1970s, the uniquely powered RX-7 helped put Mazda on the performance car map.

Motor Swap?????????????????

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Old Jan 29, 2009 | 04:07 AM
  #11  
wsoape281's Avatar
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From: houston
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one thing at a time

the 13b-rew (third gen motor) will fit with quite a few modifications to motor mounts. the third gen mounting location is on the intermediate iron and the second gen is on the front iron IIRC. it can be done, but it is a lot more work than it seems. also, the tuning that it takes to run the twin set-up is pretty harsh. odds are that both turbos need to be rebuilt, so you would need to take that into account. you could swap to a single turbo and get more power out of the 13b-rew, but, IMO, the turbo II motor handles bigger boost numbers without doing thing like, say, throwing apex seals through the exhaust. the turbo II tranny is also stronger.

gt28 would be a pretty good swap, though a little small. rotarys can handle bigger ball- bearing turbos than a piston motor. it would be a good no-lag set-up for the motor and would definitely be an upgrade from the stock turbo. if you buy an s5 motor with a turbo and decide to do the swap, i will buy your stock turbo and manifold.

basically, all of this comes back to the beginning. upfit will be required.
 
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Old Jan 29, 2009 | 10:44 AM
  #12  
kekoaenos's Avatar
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From: concord CA
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thats all i need to know for now so looks like i am now just a few hundred dollars away from a single turbo motor. and a pat on the back for knowing the stats on my gt2871r. when i referenced it with the VW community i mainly converse with it was like mentioning a Trig equation to a bunch of algaebra students. and these are the same people that say they are the know it alls of VW builds. Then again i was kind of a smart *** when i sent my post asking if they knew what car it came stock on more often than nun.

TY wsoape281
 
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Old Jan 29, 2009 | 11:45 AM
  #13  
wsoape281's Avatar
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From: houston
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no problem. i am a garrett guy and the gt28 is a really common turbo. i just like the garrett reliability factor.
 
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