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-   -   Performance and tuning (https://volvoforums.com/forum/volvo-s70-33/performance-tuning-99293/)

Dieselerdie 03-04-2019 06:08 PM

Performance and tuning
 
So i built an na motor top to bottom now its studded with a 22t turbo and its really lean 17lbs of boost. what size injectors should i go with i was looking at some 1000cc 95lb this is going to be a track car that i plan to drive alot mileage isent a big deal and i run premium with 105 additive so i was thinking atleast 800cc, any ideas?

mt6127 03-05-2019 09:30 AM

Do you have a target HP number in mind? Is your ECU tune / wastegate set up for 17lbs steady state or peaks at specific RPMs?

Here's a link to a handy calculator: https://fuelinjectorclinic.com/flow-calculator

Assuming your target is 400 HP, your fuel pressure is 45 PSI and you choose a racing duty cycle of 85%, this site is suggesting a 600cc injector is the one (note that's about 80% larger than stock which I think is 325ccs or so).

Dieselerdie 03-07-2019 08:41 PM

I lied its a stock turbo, guy i got it from said it was a 22t, and the plate is gone, but the more digging i do i think its stock


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