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Right after the forums work properly
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Originally Posted by borka
(Post 1527504)
ebay tacotaco wont work with an EFR, the compressor housing will hit the cars side rail
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Originally Posted by achulz
(Post 1527304)
What's a better option? 9.5:1? I don't want to go all the way down to 8.6:1, then I'm just running more boost for the same power level. That is why I chose 11:1, I know combustion temps can get very high but there's ways to work around that, WMI for instance.
Edit: I'm asking because I can change the order before it ships. Aren't these the same thing? https://fab9tuning.com/arp-head-stud-kit/ https://www.miataturbo.net/diy-turbo...ase-car-92683/ |
Originally Posted by 208fabrication
(Post 1528109)
Here is your 11:1 with turbo build that all the naysayers in this thread are drooling over.
https://www.miataturbo.net/diy-turbo...ase-car-92683/ We're just haters, though. |
Originally Posted by 208fabrication
(Post 1528109)
Here is your 11:1 with turbo build that all the naysayers in this thread are drooling over.
https://www.miataturbo.net/diy-turbo...ase-car-92683/ no one said that 11:1 pistons cant ever be used. OP said he will primarily run the car on 93 gas, with maybe some e85 here and there. in which case 11:1 pistons is not the correct choice. |
Point is that he should go with his original build plan and enjoy how much fun that would be. 11:1 and low boost would be a blast and survive just fine on 93.
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Point is, you are wrong. 11:1 boosted on 93 is stupid, plain and simple.
There's one arena where that could be acceptable: DI cars. |
Explain to me how I am wrong and explain how my 12.5:1 motorcycle runs amazing for 40,xxx miles on 87 octane at 2500+ foot elevation?
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:facepalm:
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Originally Posted by 208fabrication
(Post 1528164)
Explain to me how I am wrong and explain how my 12.5:1 motorcycle runs amazing for 40,xxx miles on 87 octane at 2500+ foot elevation?
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Originally Posted by 208fabrication
(Post 1528164)
Explain to me how I am wrong and explain how my 12.5:1 motorcycle runs amazing for 40,xxx miles on 87 octane at 2500+ foot elevation?
Evo X: 9:1 Golf R: 9.6:1 STI: 8.2:1 you should start selling your idea man you've obviously figured something major out here. |
Lol at streetbike comparison. Off the shelf OEM engine making 200 hp per liter.
The exhaust exit location on an outboard boat engine is more technically advanced than a miata engine. |
Originally Posted by 208fabrication
(Post 1528164)
Explain to me how I am wrong and explain how my 12.5:1 motorcycle runs amazing for 40,xxx miles on 87 octane at 2500+ foot elevation?
I'm going to recommend you do some reading on internal combustion engine design and theory of operation before making recommendations to the other noobs. Study things like rod ratio, undersquare versus oversquare engine designs, quench, tumble and swirl, combustion chamber design, the effects of cam duration and overlap on dynamic compression ratio, and definitely forced induction detonation characteristics relating to mechanical compression ratios. Report back your findings for us. |
Originally Posted by sixshooter
(Post 1528184)
All engines must have identical design properties in your world. Why doesn't my Miata make power at 14,000 rpm reliably like my motorcycle did? Surely they are both engines! Maybe I am just a fool for not trying to rev my Miata so high. I haven't tried it and it just might work.
I'm going to recommend you do some reading on internal combustion engine design and theory of operation before making recommendations to the other noobs. Study things like rod ratio, undersquare versus oversquare engine designs, quench, tumble and swirl, combustion chamber design, the effects of cam duration and overlap on dynamic compression ratio, and definitely forced induction detonation characteristics relating to mechanical compression ratios. Report back your findings for us. No balls, he won't. :rofl: |
Originally Posted by sixshooter
(Post 1528184)
All engines must have identical design properties in your world. Why doesn't my Miata make power at 14,000 rpm reliably like my motorcycle did? Surely they are both engines! Maybe I am just a fool for not trying to rev my Miata so high. I haven't tried it and it just might work.
I'm going to recommend you do some reading on internal combustion engine design and theory of operation before making recommendations to the other noobs. Study things like rod ratio, undersquare versus oversquare engine designs, quench, tumble and swirl, combustion chamber design, the effects of cam duration and overlap on dynamic compression ratio, and definitely forced induction detonation characteristics relating to mechanical compression ratios. Report back your findings for us. |
Originally Posted by concealer404
(Post 1528192)
Ew that sounds hard though.
How about maybe just the difference between static compression ratio and dynamic compression ratio? It would be nice but it's not necessary if 208 learns anything or not as long as he's not spouting antithetical bullshit to trusting and unsuspecting noobs. |
Yeah but with such low compression how do you overfill your pistons?
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Originally Posted by concealer404
(Post 1528210)
Yeah but with such low compression how do you overfill your pistons?
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Originally Posted by concealer404
(Post 1528210)
Yeah but with such low compression how do you overfill your pistons?
Originally Posted by sixshooter
(Post 1528211)
I use smaller air so I can fit more inside.
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