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ruey220

how much if you already have a tune from eurocharged?

avery.whss

do you need a super charger for this? or can you put it on a N/A?

Clark Kent

+1

Manofsteelpt

+2

Rsquad911

It's a crank pulley... Not a supercharger pulley.

It will work if you don't have a supercharger

08C63

+3

edwardsflight33

My order is in...looking forward to it! Now, anybody know what tools are need to install?

Giedreb

Interesting.
Can someone explain how this works? Does the pulley provide a more efficient means of running the other belt-driven components i.e. reduces accessory load losses? Does this mod work irrespective of any other mods? Thx.

Manofsteelpt

Also, does a tuned car need to be REtuned for this pulley?

ML63 AMG

What's the weight on the crank pulley versus stock? Under driven or stock diameter?

BK63amg

This seems pricey for relatively low net gains but curious to see some data/dyno/1/4 times with the pulley+tune.

anthonymckay

Not sure if it's the same pulley, but found this post with some hard numbers/dyno data. https://mbworld.org/forums/c63-amg-w...-2010-c63.html

msheredy

I'm assuming it's an under drive pulley. Basically it spins the accessories slower so there's less parasitic drag on the engine thus freeing up some ponies.

I didn't think a tune would be necessary to see the power gains though

anthonymckay

Yep. also less rotational mass spin up since it's lighter, so less power is lost spinning it. I don't believe the tune is needed for it. This is just a package deal for those who want a eurocharged tune and also want a pulley upgrade.

I'm also curious to see some data on the weight vs stock as well as diameter.

Autosport7

Some really good questions in here, like to see the answers.
I don't know that a re-tune would be necessary as your not changing any of the air / fuel / mapping etc... this literally will just reduce the amount of drag on the engine by lessoning the weight and changing up the diameter of the pulley.
These are speculations, so hopefully EC chimes in soon.

slfmde

OK I will say it.

$1100 for a pulley... I usually don't say anything about prices but that's just crazy. I've owned a lot of cars and usually this is one of the cheapest performance mods costing under $250.

msheredy

Ahh makes sense when you put it like that

Welcome to the world of European tuner cars. Ain't nothing cheap to be had with these.

Autosport7

I'm not saying I agree or disagree with the price point of this unit as I was not on the committee that spent hours engineering it and or meeting with the manufacturer countless times to perfect it, but I will say as long as this ^ mentality is being pushed around the forums, it will never change.

We have all been brainwashed to think that since the price point of the German car is grossly inflated, that it is ok for the aftermarket parts to be as well.

Now having said that, take a look at the cost of this car and the parts overseas (if you can get them)...

anthonymckay

It might also have to do with production run numbers. There are a hell of a lot more people out there modding hondas out there than there are C63's. We're actually quite a relatively small group of people doing that.

Autosport7

This is another great point, having said that, the BMW scene is loaded with consumers and their parts still come with a heavy price point...

Kriston

Eurocharged any further development in this?

This is such a simple mod but 1100 dollars is ridiculous. MB tax or not, this thing shouldn't be that much.

HoozyerdaddyC63

I'm curious about the group buy price for those who already have a tune.

Jason Anthony

$400 is appropriate