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Forced Induction Forum Sponsored by Active Autowerke
Discuss supercharging, turbocharging and even nitrous and water injection here.
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Old 11-13-2013, 05:59 PM   #1
straight_beamin
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E46 Supercharger and underdrive pulleys

I recently purchased a stage 2 hks kit for my 323i. When installing the kit would I be able to put on some underdrive pulleys. I understand I will need to buy a bigger belt but im just trying to extract maximum power from my car. Would it be ok or would the supercharger spin less due to the bigger pulleys and put out less boost? Excuse ignorance im just curious
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Old 11-14-2013, 08:52 AM   #2
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Quote:
Originally Posted by straight_beamin View Post
I recently purchased a stage 2 hks kit for my 323i. When installing the kit would I be able to put on some underdrive pulleys. I understand I will need to buy a bigger belt but im just trying to extract maximum power from my car. Would it be ok or would the supercharger spin less due to the bigger pulleys and put out less boost? Excuse ignorance im just curious
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Congrats on Purchasing your Stage 2 HKS Kit for your 323i. I would NOT recommend installing a Underdrive Pulley Kit since it slows down the other components of your vehicle such as water pump and alternator and this is amplified with the Supercharger.
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Old 11-15-2013, 07:54 PM   #3
straight_beamin
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Re: E46 Supercharger and underdrive pulleys

Ok cool thats what i thought

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