Anyone seen this crank pulley for C43 AMG?

[noogieman]

would you put an aluminium crank pulley on your m113 engine?
there was a guy on MBworld long time ago selling similar crank pulleys.
some people whom bought these pulleys had bad experiance from them screwing up the engine.
so what ya think, good or bad using a lighter pulley?

Mercedes Benz Power Pulley W203 C55 AMG, C320, W204 C350 & C300, W202 C43 AMG | eBay

ad says i get 20hp extra and up to 20 more tq?????????????

 

[andy27168]

Hi,
I think the claims of 20BHP increase is wildly exaggerated to be honest, If you drop Olly (BlackC55) he did get some pulleys custom made, he had one on his IIRC, he might even still have one if you were thinking of buying one.

 

[flango]

Yep, talk to Olly he'll tell you everything you need to know and sort you out if needed.

 

[noogieman]

do these pulleys get more free revving?
a lighter pulley vs stock, there's a reason why stock is so heavy?
what improvement do these light weight pulleys do?

many years ago i was thinking of buying an alu pulley from AMS motorsport, seller was on US MBworld forum, however many people said this guy was shady and he was banned.
those people who bought his pulleys had problems with their engines, pulleys came off or engine broke down.

stock or lightweight, what's best for performance gains?
my engine is stock c43