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-   -   Motor build 99 (https://www.miataturbo.net/engine-performance-56/motor-build-99-a-94056/)

chicksdigmiatas Jul 26, 2017 11:13 AM

http://i0.kym-cdn.com/photos/images/...96/186/180.jpg

ryansmoneypit Jul 26, 2017 11:28 AM

My 94mm pistons( +1.5 mm overbore) do not make any slapping noises. Sometimes a sound comes from the drivers area, but that's more of a fwap-fwap-fwap sound. usually only last a few minutes.

Go read some build threads, spend a few months doing this. You will begin to see a lot of commonalities among the various builds. Read all of the stickies too. Quickly I think you will find a much clearer path than you are currently traveling. If you want a built engine and forced induction, an M45 is just stupid. people put those on bone stock engines. If you really are prepared for the cost of a built engine etc., then build a turbo car.

Its obvious that you are pretty green with engines and forced induction, and jumping head first is a wonderful way to waste a shitload of money. In reality, I think you are a year out (based on current knowledge) of being able to build a successful forced induction miata.. If you are really serious about forced induction, stick around this site.

18psi Jul 26, 2017 11:29 AM

he's insulting our intelligence by posting some random nonsense and parading it around as "research" when even the most basic of searches would have netted so much info that he's looking for that he'd likely not even have any questions.

ysleem Jul 26, 2017 11:42 AM


Originally Posted by shuiend (Post 1429912)
A M45 will never hit more then 200whp. I would not spend any money on building a motor if planning on using that long term. Even with a MP62, I would be hard pressed to build a motor.

E85, timing advance, and meth injection could do it. A rods only build should be enough to do this tho right?

18psi Jul 26, 2017 11:52 AM

I'd like to see one pushed like that, I bet it's amusing to see the little turd try.
And I would still doubt it would break 200, because no amount of e85 and timing advance would make up for the massive heatsoak and flow choke that will happen.

They are so bad, that they can't keep up with a mediocre flowing BP. just think about that for a sec

ysleem Jul 26, 2017 03:37 PM


Originally Posted by 18psi (Post 1429944)
I'd like to see one pushed like that, I bet it's amusing to see the little turd try.
And I would still doubt it would break 200, because no amount of e85 and timing advance would make up for the massive heatsoak and flow choke that will happen.

They are so bad, that they can't keep up with a mediocre flowing BP. just think about that for a sec

Great point vlad. I was curious to see what that response was going to be. My neighbor is a mustang guy and he has a 2010 gt cobra. He is convinced i need to supercharge my car. I explained to him why I wouldn't but no avail. Lol

vitamin j Jul 26, 2017 03:52 PM

He suffers from poor comprehension and poor grammar but I think he's talking about Supertech vs. Weisco, low vs. high expansion alloys.

psyber_0ptix Jul 26, 2017 04:02 PM


Originally Posted by ryansmoneypit (Post 1429931)
My 94mm pistons( +1.5 mm overbore) do not make any slapping noises.

What car are you running? Subaru? VW?

BogusSVO Jul 26, 2017 04:35 PM

2.3 Turbo Ford?

Those pistons can be had in .060/1.5mm over


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