What's my best option, 12a, 13b swap, or 12a w/13b housings?
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What's my best option, 12a, 13b swap, or 12a w/13b housings?
Hello forum! I need some advice. I have a 1985 RX-7 with a 1979 12a in it. Working on getting it running. It should but it has been sitting for a while. The current 12a has around 70-80k on it. I have the green light from the boss to use tax return on it. :-D
Here's my issue. I want to have the motor redone while I have the $. Ideally I want a 12a with a street port to go with the full racing beat exhaust currently on the car. With 12a housings what's my best option. I don't need a race car. Im looking for a daily driver that I get years of enjoyment out of. What are the chances of getting real good 12a housings or mine being great? Should I just swap it to a 13b? I have also heard that 13b housings can be used??? Does that help or hurt or require alot of modification???
My budget will be in the $5000 range. I don't want to skimp on motor but It needs suspension refresh as well.
What say the forum???
Here's my issue. I want to have the motor redone while I have the $. Ideally I want a 12a with a street port to go with the full racing beat exhaust currently on the car. With 12a housings what's my best option. I don't need a race car. Im looking for a daily driver that I get years of enjoyment out of. What are the chances of getting real good 12a housings or mine being great? Should I just swap it to a 13b? I have also heard that 13b housings can be used??? Does that help or hurt or require alot of modification???
My budget will be in the $5000 range. I don't want to skimp on motor but It needs suspension refresh as well.
What say the forum???
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(Let's bring this to the top.)
Go for the 13B swap. It don't think it will be that difficult at all into an FB.
With a $5k budget, you're golden.
Maybe some FB guys can chime in.
Go for the 13B swap. It don't think it will be that difficult at all into an FB.
With a $5k budget, you're golden.
Maybe some FB guys can chime in.
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That's where I'm leaning. Everything I have read says actual mounting requires just a little. Im more concerned about wiring for ignition. I assume I would need 13b ecu. Racing beat has a holly carb kit that would probably be easier than trying to convert the fuel tank to run fuel injection. I couldn't post in fb yet and It did seem like a noob question.
#5
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That engine is barely even broken in. My first 12a died at 213,000 miles after years of autocross racing and daily driving.
My opinion, spend your money on carb/exhaust/brakes/suspension/stuff you really need. I doubt you need a motor quite yet.
.
My opinion, spend your money on carb/exhaust/brakes/suspension/stuff you really need. I doubt you need a motor quite yet.
.
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I will get a compression test done before deciding. I doubt the motor is trashed unless the sitting did it in. If it tests good i will work on other issues. Im just trying to plan ahead for the worst case. I don't often get the green light to spend that $$$ from the wife. :-D
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Truth day is Thursday. Hope it fires. Fingers crossed.
As for goals I'm a bit torn. I need daily driver and I'm a fan of longevity as I always have a thin budget. (Walmart employee) But quicker would be so much fun.
I have only driven a SA and FB. I LOVE how they drive. So nimble and smooth. What a joy. More power is great but at what point is that balance destroyed?
I like curvy roads. A straight line car is out of the question.
As for carborators...I HATE them. More issues and constant fiddling. I LOVE fuel injection. 13b carby is just a little easier as my fab skills are almost nil. But I am willing to learn.
Here's a pic of the ride
As for goals I'm a bit torn. I need daily driver and I'm a fan of longevity as I always have a thin budget. (Walmart employee) But quicker would be so much fun.
I have only driven a SA and FB. I LOVE how they drive. So nimble and smooth. What a joy. More power is great but at what point is that balance destroyed?
I like curvy roads. A straight line car is out of the question.
As for carborators...I HATE them. More issues and constant fiddling. I LOVE fuel injection. 13b carby is just a little easier as my fab skills are almost nil. But I am willing to learn.
Here's a pic of the ride
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