ERT Underdive Pulley

[TedStriker]

Does anyone have this installed, and have you had any problems? At low idle, do you notice the lights dimming or anythign out of the ordinary? I know the dangers of an aluminum flywheel, but I just asking strictly about the pulley with a stock flywheel. Thanks

[FLiPModE]

no problems for a year now. awesome mod:buttrock

[M3325]

Flipmode
Did the ERT pulley come w/ a new belt? Do you have the specs for the belt? Thanks

[FLiPModE]

Originally posted by M3325
Flipmode
Did the ERT pulley come w/ a new belt? Do you have the specs for the belt? Thanks

yes it did, I need to replace mine and I have just emailed ERT for part numbers for goodyear or gates belts for it. It's freezing out there right now, my garage isnt heated, hehe lazy me.

[SG_M3]

No problems and great power gain. I did notice the power steering assist is less at low speeds, like parking lots.

[TedStriker]

Did you install this yourself? How difficult?? I was looking through the Bentley Manual but it doesn't too much.

[SG_M3]

Yeah, i installed it with a friend. You have to take the underpanel off, belts, fan, water pump pulley, old crank pulley, then put the new one on.

[Hellrot Sachin]

cool.. sounds like my next mod is a little more involved than I thought.. how long will it take? I think I'm going to get a buddy of mine who is a BMW mechanic to do it in my driveway.. later Sean..

HRS


Originally posted by SG_M3
Yeah, i installed it with a friend. You have to take the underpanel off, belts, fan, water pump pulley, old crank pulley, then put the new one on.

[Kenzo]

Installed mine a few weeks ago(also fan delete) & went to the track yesterday( no thrown belts). You will really notice it in 1st & 2nd gear, the car will rev more freely and pull harder. My lights do dim went car is warmed up and at ~600rpm idle.

Give yourself a full day for the install but it should take a couple of hours with beer breaks. Removal of underpanel and fan is reccomended if not a requirement. The belt is NAPA #060598 buy an extra one.

Crank pulley is NOT to be used in conjunction with lighten flywheel. I did the research and they are safe without the light flywheel.

Crank pullies are disputed to have better gains than non-crank underdrive pulley sets. The reason being there is a five pound weight reduction when crank timing gear/dampener (not used on +96 cars) is replaced with ERT pulley. Plus under driving the accessories.

If you car has ~50K miles and no cooling system work I would reccomend the bimmerparts.com(see specials) cooling package less the radiator(belts, hoses, H20 pump, t-stat & alum.housing). One step further would be the fan delete.

[LouisM]

Thats good that you can feel it.

[eeeks]

I've had the ERT pulley installed for about 3 years. Had absolutely no problems with it. Even hobbled with an auto-box, the gains were readily apparent. No issues with vibrations or alternator/battery/electrical. I have since traded the pulley for another ERT product (VORTECH BLOWER! woohoo!), and its sitting in the garage.

Let me know if you are interested.

[Hellrot Sachin]

check your emails..

HRS


Originally posted by eeeks
I've had the ERT pulley installed for about 3 years. Had absolutely no problems with it. Even hobbled with an auto-box, the gains were readily apparent. No issues with vibrations or alternator/battery/electrical. I have since traded the pulley for another ERT product (VORTECH BLOWER! woohoo!), and its sitting in the garage.

Let me know if you are interested.

[TedStriker]

Hey guys

I'm installing the ERT Pulley tomorrow and need to know what torque specs or anything of that nature I need to know. Do I really have to remove the fan or waterpump pulley to pull the old one out??? Any tips would be greatly appreciated!!!

[eclou]

Ted,

get a Bently manual. Has all the tq specs and part#'s. It will pay for itself in 1 project. Yes the pulley must be removed to access the WP.

Eugene

[FiKtIOn]

Is there anyone who makes an underdrive pulley for OBD-1?

I've been looking, and can't find one..Hopefully I'm just stupid..

[SG_M3]

www.unorthodoxracing.com