1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Turbo big street port question

Old Mar 24, 2021 | 09:19 AM
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Devyn Anderson's Avatar
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From: St.Croix Falls
Turbo big street port question

How much power will I run with large street port, good tune, and 10psi if boost?
12a Racing beat 4 barrel intake Holley EFi

Last edited by Devyn Anderson; Mar 24, 2021 at 08:08 PM.
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Old Mar 25, 2021 | 11:53 PM
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From: FL
welcome to the board.

the question is vague, and you're lacking details that might help someone help you. what turbo? what injectors? fuel type? etc.
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Old Mar 26, 2021 | 06:50 AM
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Originally Posted by diabolical1
welcome to the board.

the question is vague, and you're lacking details that might help someone help you. what turbo? what injectors? fuel type? etc.
It will be the Holley EFI sniper, 93 fuel, it's a T04e Turbo that I'll be using.
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Old Mar 26, 2021 | 08:18 AM
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From: https://www2.mazda.com/en/100th/
Originally Posted by Devyn Anderson
It will be the Holley EFI sniper, 93 fuel, it's a T04e Turbo that I'll be using.
since 15psi is about double normal atmospheric pressure, give or take it would double output. 10psi is 2/3rds of 15psi, so we can do a little maths. still an estimate because we don't know a lot, but its a good ballpark

streetport 12A should do like 150-180rwhp, which puts you in the 200-240hp area. obviously it depends on which T04E you use, and what a large street port means (it can actually be too big), and the exhaust you have
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Old Mar 26, 2021 | 08:44 AM
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Devyn Anderson's Avatar
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Originally Posted by j9fd3s
since 15psi is about double normal atmospheric pressure, give or take it would double output. 10psi is 2/3rds of 15psi, so we can do a little maths. still an estimate because we don't know a lot, but its a good ballpark

streetport 12A should do like 150-180rwhp, which puts you in the 200-240hp area. obviously it depends on which T04E you use, and what a large street port means (it can actually be too big), and the exhaust you have
Thanks I kinda wanted a ballpark on what I'd be making.. because I know tuning makes a big difference
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