jangy

With all the variables out for these pulleys, I wanted to get some feedback on preferences.

1 - Style: Do you like the OEm-like pressed on style? Do you like the fluid dampening? Why?

2 - Weight. Does it matter?

3 - Ideal diameter? Why?

E55 RUSS

I am intrested as well...

I wanna get bigger pulleys like 186 or 188mm but I am scared...

bleek

Well it's been awhile but here goes nothing! LOL!

1. Fliud style, the dampening qualities are in a class of there own, results speak for themselves, just check out what real racers use in there $100k motors. If Fluid is not available stick with oem style as the elastometers are tuned to our engine specs, aftermarket companies that make dampeners don't have the multi-million dollar equipment to dial in there shiny billet pieces, looks nice but does nothing.

2. Could care less about weight our motors don't see enough rpm to see any difference, also as a rule the heavier dampeners can dampen a bit more.

3. My thoughts on size are 160-170mm(max) Through my own trial and error(yes i actually test my parts!) Going big does nothing good! Renntech Kleemann, MKB did there homework! They went with 160-170mm for a reason.

A) Our cooling systems can't handle the extra boost and heat created.
B) even with upgraded cooling the motor is using way too much power to turn the blower then the power gained from extra boost.
C) The extra load on the blower itself and the clutch assembly is not worth it.

But hey WTF do i know!

jangy

I'm thinking diminishing returns on the size as well. Hmmm, I would have thought that weight would be a good thing to drop. I also agree on the fluid dampening being the best.

E55 RUSS

Well..with IC mods ASP pully size works quite good....Rflow make the most power on his car...

Mkb does run crank pullies at all they use small SC pully...

Rennetch ordered a bigger pulies for Fluiddamper or whatever its name...

Very reputable tuner like Evotech run 178mm pully on inside edge with make them the same size as ASP...

So there is not definete answers to this...I am getting 183, 186 and 190 pullies and IC mod...when everything installed I am going to test and test and see which one will work better..

jangy

So, there is no clear choice, then since i won't buy RennTech. Their unit (new generation) is the design I like the best. The size isn't ideal (I prefer larger), but the design is nice.

If fluid dampening is so much better, then why are there not more available? I know there are a few about to release and I was trying to decide which to test out.

Does anyone know of another company that offers fluid dampened pulleys for us?

bleek

Do as you wish but there is what they call a sweet spot going big and running a stock intercooler core is the biggest problem, you can have as many heat exchangers added to the car but the stock core is what is bad. What you gain from extra boost you lose big time from extra heat and amount of power to turn the blower! Car will feel great down low but will kill top end HP! Believe what you wish i have SLR coolers on my car and i still won't run a huge pulley because i've tried both!

Renntech's new pulley is still a 165 and is a killer setup.

No, and not of the same quality of a real fluidampr! It's all about cost you can't get real cuban's for marlboro price, no such thing as cheap when it comes to quality you get what you pay for! I custom Fluidampr set-up cost me $5000, set-up costs and so on add up, but it's worth it to me because i want my engine and blower to last!

E55 RUSS

Renntech old pully was 168mm...and туц щту is suupposed to be biпger not smaller...Also as far as I know E55 stock pully is 165mm, so why would Rennetch make same pully as a stock one



Is very difficult to change the IC core on e55 ???

Jrocket

In a way yes,not alot of room.But money can make anything happen.

rflow306

Mike, the stock pulley measures about 157mm from the front outside lip(belt guide) to outside lip and about 151 mm from the actual belt grove to belt grove.

E55 RUSS

Thanks Albert...my mistake...sorry...

What do you think about bigger pully then ASP with outer rings 183, 186 and 190 with IC mod ???

dc63er

[QUOTE=aftermarket companies that make dampeners don't have the multi-million dollar equipment to dial in there shiny billet pieces, looks nice but does nothing.[/QUOTE]

ha ha ha ha ha, you are absolutely correct to the thousandth degree.

Zod

will this renntech pully still generate alot of heat? out of the pullies avilible now, what do you think of it?
thanks

jangy

I see it as the best in quality, but not necesarrily maximally tuned. My opinions are a bit biased since I got burned by a RennTech deal, but that was with the older (OEM) style of pulley. The added power was nice and the added heat was minimal (in SoCal). I have seen the new design and it looks good and the manufacturer is reputable. I would not get the ECU yet. I'd consider intercooler upgrade and then go from there. If you choose to do more (i.e. headers, TB), then you will need to find an ECU tuner that you believe.

Personally, I am waiting for a new one to come out. I can't support RennTech, so I may try to pick up a used EVO or K one and wait it out until I find the real deal.

psk145

I just got the new renntech fluid pulley installed on my car last week. I dont notice any difference, but it sure was sexy sitting on the bench

jangy

People gotta know that you were running the RennTech older style or they may think adding a pulley does nothing. HAHA!!

psk145

oh yeah good point.

I replaced my older style renntech pulley another old style pulley; and then again with the new fluid one, and noticed no difference.

but I must reiterate....it sure is sexy!!!

jangy

To think I was THIS close to getting that pulley...

Zod

did you get an ecu tune with the pulley?

jangy

Yes he did.