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Procharger CS-1 for bigger HP supercharge build
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Old 06-15-2019, 06:49 AM   #1
Join Date: Mar 2016
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Default Procharger CS-1 for bigger HP supercharge build

I came across this SC in doing research. It has a HUGE step up ratio, meaning that you can max out the SC impeller RPM with a large 3.5" drive pulley. For anyone going for biggish HP on a SC Subaru, I believe this may be your best bet to do so without having to deal with belt slip, which becomes a nagging issue with those tiny SC drive pulleys. My guesstimate is that a CS-1 with 3.5" pulley and properly setup SOHC 253 will deliver about 345-375 whp.

In contrast... if I were to run my Vortech V3 Si to 52000 rpm, I'd need a 2.3" drive pulley which is relatively small. Belt slip is a pain to deal with and the bigger the drive pulley the better .

The CS-1 is also physically much smaller.

Has anyone gotten a supercharged EJ up to 350+whp yet?
194k Supercharged 2.5i Outback 5MT U5

Last edited by 05Outback; 06-15-2019 at 06:52 AM..
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