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What size turbos

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Old Jan 17, 2023 | 01:57 PM
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Default What size turbos

I’m building a 6.0 iron block being bored out to 4.065 with a 29cc dish and 4.8 crank and rods. The compression ratio is gonna be around 7ish to 1
with 73cc combustion chambers. This is going to be twin turbo so I wanted to know what size turbos I should runs because I don’t want to do traditional one on each side i wanna do a medium sized feeding into a bigger one
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Old Jan 17, 2023 | 02:43 PM
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Why on earth would you make the compression ratio so low? You're giving up a TON of responsiveness as well as power.
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Old Jan 17, 2023 | 04:03 PM
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Don't onow much about compound turbos but with that compression the exhaust housing should definitely be on the small side.
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Old Jan 22, 2023 | 02:40 PM
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No matter what you do ditch the 7-1 idea.
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Old Jan 25, 2023 | 06:24 PM
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Just curious why you want to do compound turbos? This isn't a diesel.
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Old Oct 6, 2023 | 04:47 PM
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Checking back on this short stroke, LOW compression build: Did you do it ?
How much back pressure did you end up pushing INTO the first turbine ?
Is the goal for this to make a tow truck engine, that bulds boost slowly ?
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