E39 M5 Supercharger Conversion
CA Automotive International in the UK offers an E39 M5 supercharger called the RK520. It is manufactured from a fully custom made CNC machined parts. The software is developed for both European and US spec E39 M5′s.
When installed in a vehicle, the increase in power can reach 120-150hp.
Based on actual experience on a stock car, with standard exhaust system and unmodified engine, power increase registered a 107 hp increase. The stock engine’s power before this supercharging was 384 hp. It should be noted that a dyno fan can not imitate real world air flow cooling effects and other factors. Consequently, dyno figures are 15-25hp lower than it really is on the street.
Check it out on this site: http://www.ca-automotive.co.uk/single_prod-cHJvZF9pZD0yMjU3.html
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