Sneak Preview: 13b-re GTUs
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hey all. i bought this one about 7 years ago and have been building it ever since. it made 216whp with the turbo rotors, and is getting the N/A ones put in this build for a hopeful 235. Its got some real noteable mods, like triple adjustable JRZ suspension, full awr pillowball/links, and a 7's only cage that replaced the back towers with blocks that tie into the cage. Some other mods include a mazdacomp miata type I torsen, and chopped manifolds. Its been fully modded and rebuilt. Instead of going turbo I kept raising the ceiling on the chassis itself. Partly as a throwback to the old N/A rotary, partly because turbo takes dollars, has heating issues, and always seems to become the new focus of the vehicle. I figure, if i go turbo, the car'll be ready for it! its about the speed of an s2000. I dont know if ill be keeping it past next year, though!
also i like it NA because it does well against other ~200hp cars and its reaching the max speed for the front end at turn in, but i can floor it the rest of the time because of the back end being designed for turbo + rotary smoothness, while achieving angle with the miata torsen/sway/allignment. the NA setup is also really light/balanced! but that cage is pretty serious and a turbo would love the load. plus i can fit 255 or 275 all day with the panspeeds. maybe one day...
Joined: Jul 2008
Posts: 2,515
Likes: 4
From: San Jose, CA (NorCal/S.F. Bay Area)
hey all. i bought this one about 7 years ago and have been building it ever since. it made 216whp with the turbo rotors, and is getting the N/A ones put in this build for a hopeful 235. Its got some real noteable mods, like triple adjustable JRZ suspension, full awr pillowball/links, and a 7's only cage that replaced the back towers with blocks that tie into the cage. Some other mods include a mazdacomp miata type I torsen, and chopped manifolds. Its been fully modded and rebuilt. Instead of going turbo I kept raising the ceiling on the chassis itself. Partly as a throwback to the old N/A rotary, partly because turbo takes dollars, has heating issues, and always seems to become the new focus of the vehicle. I figure, if i go turbo, the car'll be ready for it! its about the speed of an s2000. I dont know if ill be keeping it past next year, though! 

Efinity, you should compare notes with GTORX7., he's got a N/A 13B-RE in his daily driver GSL-SE and is putting down around 235 right now. Who knows, he might give you some ideas on header design to extract more power
When it rains the bugs are back-flushed out. It's self cleaning! Efficient and maintenance free.

Is that blue square by the passenger headlight the battery?
I'd keep it N/A. Less problems, more driving.





