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Old 05-16-2011, 05:02 PM   #1
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Exclamation Engine replacement

I have a question for anyone who can help me out with my problem. I have a 2004 Mazdaspeed Miata and I had a rod blow through the side of the block. Does anyone know if you can use a standard miata engine in place of the speed engine or can you use just its block?
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Old 05-16-2011, 05:22 PM   #2
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I believe the bottom end for the 1.8's is for the most part identical from 94-05. I don't know where it sources the oil feed for the turbo, but any block for the most part should work. This is more of a general question then a build thread, but.

Also, post a thread in the welcome mat forum before someone rages all over you. :P
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Old 05-16-2011, 06:06 PM   #3
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Picturesssss of said happeningsssss

question: how was your oil when this happened? just wondering if it was about toast or fresh.....just something i was thinking about
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Old 05-16-2011, 06:10 PM   #4
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pics or it didnt happen.
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Old 05-16-2011, 06:42 PM   #5
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Who does your tuning?
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Old 05-17-2011, 09:58 PM   #6
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No, one yet I only had it for a few months, I was about to start myself. I have always been a fan of motorcycles, but I was always drawn to the miata but never bought one. So, I really not sure about everything yet. Thats why I asked about the stock or na motor matching up with the speed motor.
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Old 05-17-2011, 10:09 PM   #7
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How and why did it blow? These mazdaspeed miatas don't put rods through block when stock.
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Old 05-17-2011, 10:31 PM   #8
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That really sucks, curious what was done to the car? What kind of boost were you running? Still on the stock turbo?

You should be able bolt it up to a 94+ bottom end, hopefully you're head is still ok.
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Old 05-17-2011, 10:48 PM   #9
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A connecting rod bearing spun, yet I don't see how it would have since I just did a oil change only a few weeks before that. Also,I checked it the day before and it was fine. Plus the oil pressure was good. What really gets me is I was only doing about 10 to 15 mph when it happened.
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Old 05-18-2011, 01:37 AM   #10
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Quote:
Originally Posted by MoyerS View Post
A connecting rod bearing spun, yet I don't see how it would have since I just did a oil change only a few weeks before that. Also,I checked it the day before and it was fine. Plus the oil pressure was good. What really gets me is I was only doing about 10 to 15 mph when it happened.
You're not answering the questions...
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Old 05-18-2011, 03:03 PM   #11
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Not to seem stupid but what are you asking.
If it is stock yes I haven't done anything to it yet.
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Old 05-18-2011, 03:43 PM   #12
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I recently saw a complete MSM engine for sale for like $2200....full longblock with turbo on one of the Miata parts recycling sites.
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