Power Pullys

[MIKEYBMW1]

Originally Posted by johnbmw6

I am going to add the remapp and BMC filter. that's about all I think I need.

don't expect too much of an increase in power then matey

[tom @ eas]

Originally Posted by Kyoshi71

"Word is on the street?" As if they were working on some secret long-term project? If Dinan wanted to manufacture UDP's he could do it in an afternoon. And regardless of when he published the article originally, his sales reps still reference his disdain for UDP's. Sorry Bro, didn't mean to threaten your third quarter revenue.

That would be subject matter for Dinan's R&D team, not the forums. We're not going to be part of any heated debates.

Originally Posted by hogwild

Novice here! REmap??? Who? Does EAS do this????::

Software is not required but highly recommended for those with bolt-ons such as pulleys, Performance filters, etc. We recommend software from GIAC and perform our own flashing in house as well as bench-flashing.

[cpiguy]

I'm not sure what you guys are talking about.

Dinan currently offers an UDP for both the M5 and M6, and has an aggresssive one coming for the M3 anytime now. Steve's original postion on UDP's was from 10 years ago, when the attached systems effected were total different than todays motors.

PS: Mines on order

[powertrip]

Pullies are only a "no-no" if the pulley functions as a harmonic balancer, which it doesn't on our cars.

[TOOMANYCARS]

Originally Posted by tom @ eas

You can go wrong with the RE brand, here's a quick DIY to give you an overview of the install process:

What you are saying is, don't get the RE pulley then.

[tom @ eas]

Originally Posted by TOOMANYCARS

What you are saying is, don't get the RE pulley then.

Good catch.

[TLud]

Originally Posted by Kyoshi71

"Word is on the street?" As if they were working on some secret long-term project? If Dinan wanted to manufacture UDP's he could do it in an afternoon. And regardless of when he published the article originally, his sales reps still reference his disdain for UDP's. Sorry Bro, didn't mean to threaten your third quarter revenue.

Apparently not. According to their website and sales reps, it's been on the verge of production for 6 months. I finally got tired of Dinan's BS stories about why their underdrive pulleys aren't out yet and went a different route. And yes, I'm sure the disdain is just dripping from the lips of those Dinan sales guys when they take your order for underdrive pulleys for the M5 and M6 or offer to take pre-orders on the M3 pulleys.

Originally Posted by powertrip

Pullies are only a "no-no" if the pulley functions as a harmonic balancer, which it doesn't on our cars.

[rzm3]

Are there any cooling issues associated with the pullies? I've been told by a member in Australia that his oil temp would shoot up when sitting in traffic.

[tom @ eas]

Originally Posted by rldzhao

Are there any cooling issues associated with the pullies? I've been told by a member in Australia that his oil temp would shoot up when sitting in traffic.

None that I've seen anywhere here in the US under normal or aggressive driving.

[H Bomb]

i wll be getting the Dinan one if and when it comes out. if it doesn't then oh well

[Jonmartin]

Originally Posted by rldzhao

Are there any cooling issues associated with the pullies? I've been told by a member in Australia that his oil temp would shoot up when sitting in traffic.

lol no

[Sleeper519]

Venders aside, please. Which pulleys do most guys go with? I'm looking at AA vs. RE?

[niqui]

Originally Posted by Sleeper519

Venders aside, please. Which pulleys do most guys go with? I'm looking at AA vs. RE?

+1
which one to get, or wait for dinan...
which is the least noticeable, ie most stock looking...

[J08M3]

Originally Posted by powertrip

Pullies are only a "no-no" if the pulley functions as a harmonic balancer, which it doesn't on our cars.

As far as I know if your pulley functions as a harmonic balancer, it is only doing so for driver comfort, and not to balance the engine as the name implies.

[tom @ eas]

Originally Posted by niqui

+1
which one to get, or wait for dinan...
which is the least noticeable, ie most stock looking...

The REs use a black hard anodizing process to emulate an OEM appearance.

[niqui]

Originally Posted by tom @ eas

The REs use a black hard anodizing process to emulate an OEM appearance.

thks
is it true the re pulley is less aggressive than the aa iteration.?

[tom @ eas]

Originally Posted by niqui

thks
is it true the re pulley is less aggressive than the aa iteration.?

As per the crank pulley - little to no difference at all.

[Vic55]

If you are interested in incremental hp then a pulley is worth the money. The gains you get are not great if you look at it alone but if you are building up your beast and want to do all the bolt ons- its a no brainer plus its relatively cheap.

Got mine from Tom at EAS- free install (at the time) and great service.

[BMRLVR]

Originally Posted by J08M3

As far as I know if your pulley functions as a harmonic balancer, it is only doing so for driver comfort, and not to balance the engine as the name implies.

That is not the case..... a harmonic balancer cancels out harmful harmonics that would eventually lead to fatigue failure of the crankshaft. If you removed a harmonic balancer and replaced it with a UDP you would not have a instant failure but you would eventually have a failure.

The S65 does not use a balancer attached to the crank pulley so you are ok. The S65 is balanced Internally.

[J08M3]

Originally Posted by BMRLVR

That is not the case..... a harmonic balancer cancels out harmful harmonics that would eventually lead to fatigue failure of the crankshaft. If you removed a harmonic balancer and replaced it with a UDP you would not have a instant failure but you would eventually have a failure.

The S65 does not use a balancer attached to the crank pulley so you are ok. The S65 is balanced Internally.

Could be.... what I was told came from someone who builds race engines though, so I don't know.

I am however curious what engines are not internally balanced? Now most production cars don't have each piece individually balanced, they are just factory produced and supposed to end up within a certain tolerance. None are perfect from the factory. But each engine will be out of balance at a different place, and that makes me wonder how a generic external balancer can work on all engines?

[aus]

Originally Posted by tom @ eas

The REs use a black hard anodizing process to emulate an OEM appearance.

Isn't he stock crank pulley silver/metallic? The other pullies are black... at least in all the pic's I've seen.

[tom @ eas]

Originally Posted by aus

Isn't he stock crank pulley silver/metallic? The other pullies are black... at least in all the pic's I've seen.

You're correct - OEM crank pulley is silver.