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Old 10-12-2010, 04:37 PM   #41
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Well then, I apologize for getting cranky earlier =P
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Old 10-12-2010, 04:59 PM   #42
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Quote:
Originally Posted by Jeff_Ciesielski View Post
Yes. I have a set of b6t pistons that came out of a capri xr-2 which were attached to standard miata rods when I got them.
I have seen several Capri turbo motors apart and there was no diferance from a B6T GTX. I suspect whoever you got them from swapped them out. The Capri did have slightly different engine management I think however. And when Mazda Built the 1.8L BPT it used miata rods in everything but the GTR version which used better forged rods.

Correction. the XR2 was a later model car 1991-1994 it probably came with a big nose crank and miata rods. The big rods stopped being produced in 1990 I bet.

Bob

Last edited by bbundy; 10-12-2010 at 05:11 PM.
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Old 10-12-2010, 05:12 PM   #43
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Quote:
Originally Posted by bbundy View Post
I have seen several Capri turbo motors apart and there was no diferance from a B6T GTX. I suspect whoever you got them from swapped them out. The Capri did have slightly different engine management I think however. And when Mazda Built the 1.8L BPT it used miata rods in everything but the GTR version which used better forged rods.

Correction. the XR2 was a later model car 1991-1994 it probably came with a big nose crank and miata rods.

Bob
There appear to be some discrepancies here.

http://www.clubprotege.com/forum/showthread.php?t=45431

Post 4 holds to what I'm claiming.

From everything I've read, anything PRE '89 got the beefier b6t rods. Anything POST 89 (Ford/Mercury especially) got the standard miata rods.

Of course, this is all internet speak. I've never owned an XR2 or a GTX, so I have no personal frame of reference.
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Old 10-12-2010, 05:15 PM   #44
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Quote:
Originally Posted by Jeff_Ciesielski View Post
There appear to be some discrepancies here.

http://www.clubprotege.com/forum/showthread.php?t=45431

Post 4 holds to what I'm claiming.

From everything I've read, anything PRE '89 got the beefier b6t rods. Anything POST 89 (Ford/Mercury especially) got the standard miata rods.

Of course, this is all internet speak. I've never owned an XR2 or a GTX, so I have no personal frame of reference.
I believe the XR2 motors I have seen the insides of were austrailian or japanese imports probably pre 1990.
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Old 10-12-2010, 05:16 PM   #45
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Do the Capris have short or long nose cranks?
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Old 10-12-2010, 06:07 PM   #46
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Originally Posted by wayne_curr View Post
Do the Capris have short or long nose cranks?
They had “Big nose” after the changeover date in 91 would be my guess. Long nose was a replacement only on 1.6's and standard on 1.8l's pre changeover date in 91 only. I did have a long nose 1.8l escort motor and I have seen a long nose BPT that wasn’t a big nose.

Bob
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Old 10-12-2010, 06:43 PM   #47
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Very nice thread.
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