Miata Turbo Forum - Boost cars, acquire cats.

Miata Turbo Forum - Boost cars, acquire cats. (https://www.miataturbo.net/)
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-   -   300hp to 400hp upgrade (https://www.miataturbo.net/build-threads-57/300hp-400hp-upgrade-91918/)

ysleem 07-31-2018 11:00 AM


Originally Posted by Mudflap
I'm impressed, 2 weeks and you got the block re-bored and decked with new pistons? Or is that just new pistons only? No matter, I can barely change spark plugs in 2 weeks.

Same here! Always a honey do that takes precedence!

Kens_Clubman 07-31-2018 12:33 PM

Isn't it good practice when installing new pistons/rings to get it honed, so the rings actually bed in and create a good seal?

sixshooter 07-31-2018 01:00 PM


Originally Posted by Kens_Clubman (Post 1494249)
Isn't it good practice when installing new pistons/rings to get it honed, so the rings actually bed in and create a good seal?

Yes

18psi 07-31-2018 01:12 PM

OP makes a point of doing everything wrong and backwards. Don't question it, just enjoy the show

ysleem 07-31-2018 01:31 PM


Originally Posted by 18psi (Post 1494259)
OP makes a point of doing everything wrong and backwards. Don't question it, just enjoy the show

I missed seeing these types of posts Vlad. Thank you for making me laugh and reminding me of part of the reason im on mt.net

ridethecliche 07-31-2018 06:01 PM

I mean... Did the old rings really have enough time to break in the cylinder walls?

Jokes aside, if OP was pressed for time, he coulda just dingle balled it.

ryansmoneypit 07-31-2018 06:10 PM

Negative. Dingle balls and cromo rings are a no go. Look to the plateau for answers.

ridethecliche 07-31-2018 08:31 PM


Originally Posted by ryansmoneypit (Post 1494308)
Negative. Dingle balls and cromo rings are a no go. Look to the plateau for answers.

I thought that the plateau hone was just a finishing technique that could be achieved with a ball style hone. Would be hard to do yourself with a drill fitting hone, sure, but that's what my reading led me to believe before I got my motor built.

https://www.productionmachining.com/articles/for-plateau-honing-consider-ball-style

edit: unless the dingle ball hone doesn't fall into the category of ball style hones because it's on a drill instead of more purpose built tooling.

18psi 07-31-2018 11:30 PM

Maybe just stop

elior77 08-01-2018 04:11 AM

It is honed

Schroedinger 08-01-2018 06:25 PM

Just looked at the tags for this thread and LOL’d. Strong

Mudflap 08-02-2018 12:16 AM

Agreed Schroedinger, harsh.

Elior - we will learn more from our failures than we will ever learn from success. As a scientist/engineer - I never see papers discussing various attempts (which end in failure) in the literature. Unfortunately, that means all of that knowledge/experience is lost and we are all left to make attempts at dead ends. If more people would document their path/process and failures we would advance at a much quicker rate. In so many words I'm saying thank you for sharing.

18psi 08-02-2018 12:33 AM

Oh so logic wouldn't tell you that low oct and 20psi of boost would result in failure?

Mudflap 08-02-2018 12:48 AM

Oh this website I've learned that it is bad to leave rags in your engine. It is bad to have negative valve clearance. It is bad to have your friend balance your crank in his garage and it is bad to take advice from people who don't know anything. All of those pieces of information are valuable and you are foolish to believe otherwise.

elior77 08-02-2018 01:54 AM


Originally Posted by Mudflap (Post 1494560)
Agreed Schroedinger, harsh.

Elior - we will learn more from our failures than we will ever learn from success. As a scientist/engineer - I never see papers discussing various attempts (which end in failure) in the literature. Unfortunately, that means all of that knowledge/experience is lost and we are all left to make attempts at dead ends. If more people would document their path/process and failures we would advance at a much quicker rate. In so many words I'm saying thank you for sharing.

Appreciated, thank you.

Elior

elior77 08-02-2018 05:46 AM


Originally Posted by 18psi (Post 1494562)
Oh so logic wouldn't tell you that low oct and 20psi of boost would result in failure?



10:40

elior77 11-08-2018 04:41 AM

https://cimg3.ibsrv.net/gimg/www.mia...76ec3f497.jpeg
Current state - ready to start boosting !

ryansmoneypit 11-08-2018 12:23 PM

looks pretty clean

95RedM 06-12-2021 04:48 AM

I lost brain cells reading this. Bumping this up so others can enjoy a good laugh

elior77 06-12-2021 05:14 AM

Car’s running strong @ 1.5bar, about 400hp at the crank.

go look for your brain cells.


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