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Old 12-30-2009, 08:22 PM
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I need a Mazda rotary specialist

Hi all,
I am completing the quad 4 powered Rambler coupe and want to get back to the Rotary powered Rambler wagon asap...my first thing I want to get is a new trans...so here is what I have motor wise:
1994 Mazda 13b-rew rotary engine..the twin turbo from the FD series..
This motor is street ported and running cosmo intake and large single turbo, Microtech management, intercooled, Synapse wastegate and BOV..etc... so I expect somewhere in the 400+hp range.

I want to run a T5 transmission..the mazda transmission is way too long and the shifter would be behind me in the short Rambler wagon..so I need a short trans..I know Kennedy Engineering makes an adapter to bolt to a 13b to fit a T5 but I cant get a straight answer whether this will fit the 13b-rew?
Kennedy says they dont think the adapter will work on the 13b-rew..they say it will work with th Turbo II though..so wouldnt a Turbo II bellhousing bolt onto the 13b-rew and if so then shouldnt the adapter bolt to that and thus the T5....Some say yes and some have said no.....Has anyone ever done this or know of someone that has done the T5 conversion on a FD RX-7? The RX-7 forums so far havent been to clear or noone replies???

Thanks for reading!

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Old 01-17-2010, 08:37 AM
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I prefer stick too, but with the shifter location problem it might be best to use an auto. RX-7 auto trannys aren't cheap in the rebuilt market though!
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Old 01-17-2010, 11:40 AM
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Hey Farna,
I think I got it solved...I have a guy that can take a Mazda Turbo II manual trans and relocate the shifter forward several inches..This trans will hold up and bolts right up to my motor...so no adapters or weird combos..I thought at one time of just going to the auto trans but to do that I would have to change the rear housing on my motor which I do not want to do..+ this wagon needs a stick with the revvy rotary anyway
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Old 01-29-2010, 09:19 AM
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I was just discussing putting a rotary in a Pacer with some guys on an AMC board. Problem is the Pacer is a relatively heavy car -- around 3200 lbs. shipping weight, closer to 3500 ready to roll with driver. That's about 1000 pounds heavier than your little Rambler. I figure it would need a low axle and five speed, and fifth would be about like a a 1:1 top gear considering the deep axle you'd need to pull the heavy car. Something like a 3.73 or even a 3.90-4.11 gear might be necessary for it to feel "right".

I noticed your pics for the rotary are gone. Did you have them in something like photobucket or in an album on the site here? Didn't find an album for "ramzoom"...
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Old 01-29-2010, 10:18 AM
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The 13b-rew was in the FD version of the RX7....I dont recall the exact weight of this car...I do remember we had 4:11 in the rear of our 93 rx7..It moved just fine and I do think they push 3000 lbs.....
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