Has anyone put a Renesis into a 1st Gen RX-7
#27
Revving to the sky!
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If I were you I'd take a look at the 13BT from the FC or swap appropriate turbo parts on a FC n/a block. That swap is well documented on the RX-7 forum, less expensive and easier (swap the front cover from a FB engine and it mounts up fairly easily). The power potential is greater as well. With the stock turbo you can be in the high 200HP range easily. Go with a nice GT30 or GT35 setup and you've got a psychotic car. The downside is that the cheaply available parts are getting pretty tired. Honestly, I don't think the Renesis gets better fuel economy either.
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The Renesis gets much better fuel economy. The problem with people's perceptions of it is based on the fact that it is in a 3000# car as opposed to a 2500# car and in a car that has such a worthlessly aggressive rear end gear ratio that it is always at a higher rpm than it needs to be. This was done to get all that extra weight moving. If you put a Renesis in a light car like a 1st gen RX-7 with far more realistic and useful gearing, that car would get great gas mileage. 30+ on the highway would be no problem and 20+ in normal city driving would be doable as well. The engine is actually quite nice. It just needs to be installed in a vehicle that can showcase it for what it does well.
I know what your talking about, the potential power from a 13BT is out of this world. But having the car turbo is not my goal. I want to stay All Motor. Lets say your car is turbo and you just got your *** handed to you by an old school N/A car, thats a real slap in the face. Well I think the Renesis has some real slaping potential without the need to street or bridge port. so thats my goal.
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And no I dont have any special magical engine. Yes everymotor is different and there is a wide range of build quality is some cases(especially remans), but when I bought the car in 06 I made the same 18-21mpg that most folks with a decent engine and good maintenance made. Assuming proper maintenance, you just need to address a couple basic things to improve economy as much as 5-7mpg.
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