underdrive pulleys

[mgmsleeper]

can some one direct me to a thread on underdrive pullies please. thinking about getting a set but just want to read up on what the fellow Mercury drivers are saying. is it a difference or just another thing to throw under the hood

...thanks

[Pops]

Use the search button! I can tell you that you should just get them and grin after you put them on!;)

[Blackened300a]

I noticed a SOTP difference right away. I believe some members got something like 7-10 RWHP on the dyno.

They do work just be careful with that crank bolt. :D

[mgmsleeper]

I noticed a SOTP difference right away. I believe some members got something like 7-10 RWHP on the dyno.

They do work just be careful with that crank bolt. :D

did you self install?

[Pops]

They are not hard to do!:)

[mgmsleeper]

Use the search button! I can tell you that you should just get them and grin after you put them on!;)

i tried i got threads about members asking for them no post on actual information etc.. but i plan on getting a steeda set i'll grin along with :burn:

[Pops]

You will not look back!

[mgmsleeper]

They are not hard to do!:)

i dont have a 3prong puller. is it really needed?

[mgmsleeper]

is the 3 prong puller needed for install?

[fastblackmerc]

No but you can use a harmonic balancer puller. Very cheap to buy or rent at a FLAPS.

[ImpalaSlayer]

i didnt notice anything when they were installed. but i dynoed 8hp higher so they do add hp

[freakstatus]

Heres a writeup on the install:

http://www.mercurymarauder.net/reviews/showproduct.php/product/26/sort/2/cat/2/page/1

You'll need to install washers on the bolts with the water pump pulley or the bolts will hit the water pump.

[Blackmobile]

Heres a writeup on the install:

http://www.mercurymarauder.net/reviews/showproduct.php/product/26/sort/2/cat/2/page/1

You'll need to install washers on the bolts with the water pump pulley or the bolts will hit the water pump.

I've done a couple of sets and there was never a need to add washers, Never had a clearance issue. Oh and by the way, if you install them and then stomp on the peddle, you WILL notice a difference. That was the one mod I missed when I put the blower on.

Ed

[duhtroll]

I have a used set coming off my MM in about two weeks...

Cheap! I think they have about 20K on them.

[Blackened300a]

did you self install?

Yes I done 3 installs with the 4th one on my own car being a disaster. The longer bolt for the install is a must and will make the install easy without any mishaps.


is the 3 prong puller needed for install?

I went to Sears and bought the harmonic balancer puller. It comes with different size bolts that thread into the pulley and make it simple to remove.


Heres a writeup on the install:

http://www.mercurymarauder.net/reviews/showproduct.php/product/26/sort/2/cat/2/page/1

You'll need to install washers on the bolts with the water pump pulley or the bolts will hit the water pump.

If you have the EMP performance water pump, then you'll need the washers when installing the Steeda waterpump pulley. The Steeda pulley is thinner then the stock one and the EMP pump has a thinner snout on it so the bolts will extend though the snout and hit the housing without the washers.
I did a write up on it somewhere in the archives.

[BAD MERC]

I have the Steeda UD crank pulley - there is a noticable difference BUT, it slows down your accessories. I raised the idle about 200 RPM on my Xcal2 to compensate. In my honest opinion from experience, it's great. I traded my stock one for it in a pinch during a Trilogy install just to be a good guy - kinda glad I did. When I Trilogize I will happily trade it even up for a stock pulley again.

[Blackmobile]

If you have the EMP performance water pump, then you'll need the washers when installing the Steeda waterpump pulley. The Steeda pulley is thinner then the stock one and the EMP pump has a thinner snout on it so the bolts will extend though the snout and hit the housing without the washers.
I did a write up on it somewhere in the archives.

I'll make a note of that, all my installs were on stock WP.

Ed

[Vortech347]

Steeda Underdrive crank on mine. Love it!!!

[mgmsleeper]

I have a used set coming off my MM in about two weeks...

Cheap! I think they have about 20K on them.

are they steeda?

[freakstatus]

If you have the EMP performance water pump, then you'll need the washers when installing the Steeda waterpump pulley. The Steeda pulley is thinner then the stock one and the EMP pump has a thinner snout on it so the bolts will extend though the snout and hit the housing without the washers.
I did a write up on it somewhere in the archives.

I forgot that it was only with the Stewart pump....and I believe I owe you a thanks on that tip as I would have really screwed the pooch if I had not known that beforehand.;)

[duhtroll]

Yep .


are they steeda?

[james1986fox]

Yep .
Ill take em, pm me a price

[mgmsleeper]

Yep .

i believe they were offered to me first thanks.
..let me know a price if i dont take them then the other member can have them

[duhtroll]

Whoa there, big stallions...

I didn't think there would be much interest and I was half jokingly throwing this out there. Were I serious and had them off the car I would have put them up in the classifieds.

As it is, there is a member who has emailed me twice about them and when I take them off in two weeks or so, he has first shot at them.

Again sorry for the confusion, but I didn't think this would be such a big draw. New ones aren't that expensive. Go grab a set!

[mgmsleeper]

Whoa there, big stallions...

I didn't think there would be much interest and I was half jokingly throwing this out there. Were I serious and had them off the car I would have put them up in the classifieds.

As it is, there is a member who has emailed me twice about them and when I take them off in two weeks or so, he has first shot at them.

Again sorry for the confusion, but I didn't think this would be such a big draw. New ones aren't that expensive. Go grab a set!

i was gettin a new set but if you threw them out there i would have bought them. but a new set is at hand. no harm no foul lol it wasnt serious :beer: to all

[Commodore Crap]

I just found a set of UPR pulleys for $119. I'm gonna give them a shot.

[bigbillybbs]

After seeing this post and doing some research I think I may pick one of these bad boys up. Theres only one thing making me hesitant. Do any of you think the kit will cause me any problems with drawing power? My stereo has 500watt amp for my subs. Also the bundle of LED warning light equipped on my car?

[Blackmobile]

After seeing this post and doing some research I think I may pick one of these bad boys up. Theres only one thing making me hesitant. Do any of you think the kit will cause me any problems with drawing power? My stereo has 500watt amp for my subs. Also the bundle of LED warning light equipped on my car?


You probably will have to compensate (Raise)with the idle setting within your tune.

Ed

[SC Cheesehead]

You'll have to bump up your idle RPM, but other than that, I don't think you'll have any problems.

[Eric91Z]

I never did UDP on the Marauder when I had it, but I do remember reading that you should only use the Steeda pulleys to be safe.

That being said, I do have a set of Steeda UDP that are going on the Crown Vic on Friday. I was not sure if I wanted to do the alternator pulley or not, but everyone I talked to said I should be fine running it with my stereo setup and as others have said can bump the idle rpm via the XCal2 if I need to.

Looking forward to seeing the results. I remember doing an underdrive crank pulley on my '93 Z28 and while maybe not more powerful, it did seem to allow the engine to rev freer.

Good luck in your decision.

[babbage]

I thought the March performance set were better than steeda. They are filled with a silicone type of fluid and are SFI approved.

You can "rent" a pulley puller for free at AutoZone.

You should purchase a new crank bolt from Ford or ARP as they are only suppose to be used once.

For those of you with triliogy you can "Overdrive" the crank by installing a larger harmonic balance.

Last thought: premature oil pump fail with smaller harmonic balancer? Paranoid?