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Forced Induction Forum
Discuss supercharging, turbocharging and even nitrous and water injection here.

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Old 01-18-2017, 03:10 PM   #1
Registered User
Join Date: Oct 2016
Location: Greece
Posts: 5
My Ride: M3 e46
Need some help cfr500

Hello people ***128515;.
Before 2 months around i bought a used supercharger kit used it is from Ess with the old supercharger asa tm20 (cfr500).
Contact with Ess took everything photos and send to them so they can recognize the kit.
To make a long story short i went to the dyno and the car put down 355hp.
The engine is whealthy with comp test 185plus at all cilynders.
The asa tm 20 was in a car that had very low miles sitting in a garage.
When i bought the kit they told me something about the pulley size and i asked ess about that but from the color of the injectors told it is the 500hp version.
I contact again with the previous owner to ask about the kit and about the pulley size and told me that he wanted to reduce the boost so he went to a machine shop and made a bigger pulley for a little less boost.
My afr was 10.3 after 4500rpm which means there is not enough air reasonable because of the smaller pulley,
So what i want from the supercharged community is if anybody has a kit with asa tm20 cfr 500 to let me know the pulley size supercharger has ***9786;.
What i have read till now is that asa tm 20 if it has the same size pulley with crank pulley we have a ratio of 1 to 15.
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