check this out
Thread Starter
Joined: Mar 2001
Posts: 31,833
Likes: 3,232
From: https://www2.mazda.com/en/100th/
Dude, that is freakin cool as hell!
An NA FB with a 20B... my brain is churning...
"Shut up Nick, you're already in too deep with a 20B FC!!!"
Hmmm, build up a 20b in an NA repu or an NA FB/SA?.........
only time will tell....
An NA FB with a 20B... my brain is churning...
"Shut up Nick, you're already in too deep with a 20B FC!!!"

Hmmm, build up a 20b in an NA repu or an NA FB/SA?.........
only time will tell....
Originally posted by j9fd3s
i was looking for 13bt 1st gens myself....
mike
i was looking for 13bt 1st gens myself....
mike

more pics here:
http://z.gmk2.com/pics/rx7/
That's Zach's car, sitting next to my T2... 84 GSL-SE with a S5 T2 engine and tranny, S6 UIM, Haltech...... it'll scoot when we're done

BTW, did you get those TB adapters yet?
Exactly what I was thinking! All motor 20B in my FC.
The overall cost should be less than that of a Turbo 20B... No front mount, no custom intercooler piping, no exhaust manifold/turbo to worry about (Custom header is pretty cheap from RB) If you loose the EFI and go carbs, you wouldn't have to worry about Haltech. Only problem would be timing...
I was asking about this a couple weeks ago. Specifically I wanted to know if you could run the 89-91 High compression NA rotors in a 20B?
The overall cost should be less than that of a Turbo 20B... No front mount, no custom intercooler piping, no exhaust manifold/turbo to worry about (Custom header is pretty cheap from RB) If you loose the EFI and go carbs, you wouldn't have to worry about Haltech. Only problem would be timing...
I was asking about this a couple weeks ago. Specifically I wanted to know if you could run the 89-91 High compression NA rotors in a 20B?
Originally posted by wozzoom
Exactly what I was thinking! All motor 20B in my FC.
The overall cost should be less than that of a Turbo 20B... No front mount, no custom intercooler piping, no exhaust manifold/turbo to worry about (Custom header is pretty cheap from RB) If you loose the EFI and go carbs, you wouldn't have to worry about Haltech. Only problem would be timing...
I was asking about this a couple weeks ago. Specifically I wanted to know if you could run the 89-91 High compression NA rotors in a 20B?
Exactly what I was thinking! All motor 20B in my FC.
The overall cost should be less than that of a Turbo 20B... No front mount, no custom intercooler piping, no exhaust manifold/turbo to worry about (Custom header is pretty cheap from RB) If you loose the EFI and go carbs, you wouldn't have to worry about Haltech. Only problem would be timing...
I was asking about this a couple weeks ago. Specifically I wanted to know if you could run the 89-91 High compression NA rotors in a 20B?
You can do this "cheap" if you already have 3 high comp rotors... there is a dissassembled 20B on the partstrader right now for $2000. Get that sucker and port it to your NA heart's content! The only problem is reassembling the 2 piece eccentric shaft, which I believe requires a special Mazda tool.... I know the tool is required for disassembled. Jason sells E6Ks for $1150... there you go. all you need are seals, 3 leading FC coil packs, a header and a bigger radiator.
Last edited by Kurgan; Jun 27, 2002 at 04:43 PM.
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Thread Starter
Joined: Mar 2001
Posts: 31,833
Likes: 3,232
From: https://www2.mazda.com/en/100th/
Originally posted by Kurgan
Like this one?

more pics here:
http://z.gmk2.com/pics/rx7/
That's Zach's car, sitting next to my T2... 84 GSL-SE with a S5 T2 engine and tranny, S6 UIM, Haltech...... it'll scoot when we're done
BTW, did you get those TB adapters yet?
Like this one?

more pics here:
http://z.gmk2.com/pics/rx7/
That's Zach's car, sitting next to my T2... 84 GSL-SE with a S5 T2 engine and tranny, S6 UIM, Haltech...... it'll scoot when we're done

BTW, did you get those TB adapters yet?
mike
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