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Fantasy Fiero engine swap by David Hambleton
Started on: 09-29-2020 09:08 PM
Replies: 4 (206 views)
Last post by: Will on 10-06-2020 08:57 AM
David Hambleton
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From: Stoney Creek Ontario Canada
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Report this Post09-29-2020 09:08 PM Click Here to See the Profile for David HambletonClick Here to Email David HambletonSend a Private Message to David HambletonEdit/Delete MessageReply w/QuoteDirect Link to This Post
In the mid 1970s I had a dark green Mazda RX2 coupe 4 speed. I thought it was a phenomenal performer.



This is why I'd like to have a rotary powered Fiero:


https://www.msn.com/en-ca/a...-BB19x7g2?li=AAggFp0
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cvxjet
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Report this Post09-29-2020 09:45 PM Click Here to See the Profile for cvxjetClick Here to Email cvxjetSend a Private Message to cvxjetEdit/Delete MessageReply w/QuoteDirect Link to This Post
That would be an interesting swap- and, from what I can find online, would cut over 100 lbs off the car's weight! You would need an adapter between the engine and the transmission tho....
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fieroguru
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Report this Post09-30-2020 07:41 AM Click Here to See the Profile for fieroguruSend a Private Message to fieroguruEdit/Delete MessageReply w/QuoteDirect Link to This Post
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cam-a-lot
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Report this Post09-30-2020 08:02 AM Click Here to See the Profile for cam-a-lotSend a Private Message to cam-a-lotEdit/Delete MessageReply w/QuoteDirect Link to This Post
Hey Dave

Cool idea- If you need a motor, there is a shop close to me in Newmarket that has one of these old mazdas and the engine is in running condition

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Will
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Report this Post10-06-2020 08:57 AM Click Here to See the Profile for WillClick Here to Email WillSend a Private Message to WillEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by fieroguru:

I has been looked at several times in the past.
http://www.fiero.nl/forum/A...090907-2-091370.html
http://www.fiero.nl/forum/A...031229-2-041414.html
http://www.fiero.nl/forum/A...040223-1-035534.html
http://www.fiero.nl/forum/A...060811-2-069942.html

IIRC the exhaust manifold and the passenger axle won't clear each other.


Also--and this is the enabling feature that makes V8 RX7 swaps possible--the eccentric shaft in a rotary is higher in the engine than the crankshaft of a piston engine.

In a longitudinal car, this means that the transmission tunnel is tall, and the relatively small Mazda transmission is very high in the tunnel. This means the tunnel is big enough for a large transmission like a T56 to be mounted low in the tunnel, to mate up to a V8 engine mounted low in the engine bay.

In a transverse car, this means that the axles come out of the transmission several inches higher than they would with a piston engine. This may cause problems with the relationship of plunge in the inner CV joints to suspension movement.

OTOH... if you're going to do a longitudinal 4 rotor swap...

[This message has been edited by Will (edited 10-06-2020).]

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