Pulleys a GO GO....

[Black Badger]

Had a set of March pulleys installed today.
HP and torque are up pretty much across the board.

Peak HP stayed the same.

But peak torque jumped up 12.3 ft/lbs Not alot but it helps

The Butt-O-Meter says it was worth it :)

Stock 251 HP Torque 269.0
Pulleys 250.9 HP Torque 281.3


http://www.mercurymarauder.net/forums/attachment.php?s=&postid=3727

[MI2QWK4U]

What is the part number for the set and what did it cost.....
Was the set specifically for the Marauder, or the 4.6 in general?
Just curious....

[Black Badger]

Originally posted by MI2QWK4U
What is the part number for the set and what did it cost.....
Just curious....


The part numbers for the Marauder
#1156 crank pulley # 1172 water pump pulley
(The Marauder Does Not need the alternator pulley)

And you can reuse the stock belt

Price about $130.00

Was the set specifically for the Marauder, or the 4.6 in general?

4.6 Mustang /Cobra

[LincMercLover]

Any reason why you decided against Steeda?

[Black Badger]

Originally posted by LincMercLover
Any reason why you decided against Steeda?


No not really. Didn't even think of them to be honest.

I have used march pulleys in the past on 2 chevy's and 1 ricer and was
quite happy with them.

I guess I was under the impression that pulleys were pulleys.

But now that I have looked at Steeda's site, I'm not too sure that I've made the right decsion.


Oh well, live and learn.

[Logan]

Niiiice.... Decent gains for the price... I do believe I'll have to get me some of that action, thanks for doing the dyno on em.

[tetsu]

Steeda pulleys seem like they'd be ideal. No piggybacking.

I wonder how hard it is to do it yourself on pulleys.

Johnny

[MI2QWK4U]

Badger....
Why do you think the Steedas may be better than the Marches?

And Tetsu....
What do you mean by piggybacking.

I did my pulleys on the 85 Mustang GT, I don't recall if they were Motorsport or BBK....wasn't much work. Just remember how the belt is laid out before starting!

[Black Badger]

Originally posted by MI2QWK4U
Badger....
Why do you think the Steedas may be better than the Marches?



On a street car I think steel might be a bit better, more durable over time.And I like the idea of a one piece crank pulley.

[mercjerc]

Any part#/price info on the Steeda pulls?

[tetsu]

I like the Steeda's better because you dont attach them to the existing pulley they replace it.

Johnny

[Logan]

The Steeda pullies are available from their website for $169.95... They're direct replacement pullies.

[mercjerc]

thanx for the info.
is this a do-it-yourself type project?

[mercjerc]

also, would there be any issues using the pulleys with the RPC chip?

[LincMercLover]

I wouldn't think it'll affect the chip. Nothing to do with timing changes or anything. All they are doing is slowing the accessories down and speeding the crank up to relieve stress from the crank. No dramatic changes taking place that would call for computer compensation.

[mercjerc]

Cool! Thanx!

[Black Badger]

Originally posted by Logan
Niiiice.... Decent gains for the price... I do believe I'll have to get me some of that action, thanks for doing the dyno on em.

No problem Logan, just trying to do my part to help out around here.

I think you'll be happy with the gains especially with a chip. Helps out down low and around town.
Plus it seems to have increased the gas mileage. I've only run through 1 tank but will keep an eye on it this week and let you guys know.

[Mikeenh]

Are there ANY down sides to using the smaller pulleys like power steering in parking lots or not enough volts at idle with everything on?
Mike

[tetsu]

Downsides:

If your dealer is a jerk wave bye bye to drivetrain warranty.

Johnny

[LincMercLover]

Or, you could just do what I do, and not tell a soul... :D

[Leadfoot]

Originally posted by Mikeenh
Are there ANY down sides to using the smaller pulleys like power steering in parking lots or not enough volts at idle with everything on?
Mike

I know of two:

1. My brother had them on his 93 Cobra. With the radio, A/C, lights, and fog lights on, it doesn't have enough power at idle to operate the turn signals. They blink maybe once. Once rpm goes over something like 2500 rpm, they operate fine. If he's at a light and is making a turn, he has to turn off some things.

2. I have heard on some Mustang boards that underdrive pulleys can lead to cam gear damage (or something to that effect). It apparently can change accessory drive line torsional frequency response and create a resonance that can damage internals. To me, the additional 9 or 10 hp (on Mustangs) wasn't worth taking that chance. I have no proof or personal experience. So, take it with a grain of salt.

[cyclone03]

Leadfoot,
That sounds like a full race pulley set up.
I had a set on my Mustang with a 3" Dia alternator,about 6" waterpump and 4" crank.If I drove it at night with the AC on it wouldn't start the next day.Put the stock alt. pulley back on and all was good.

The only damage I've ever seen pulleys cause is when they drive a supercharger LOL.
Friends of mine would used about a 4' cheaterbar to tighten the S/C belt (to stop it from slipping) then break the end of the crank off at about 6000rpm.

Remember like all things from the factory,the designers believe everycar sold is going to be owned by somebody who has no clue about vehicle maintence/operation.
The car will be ideled all day at 30below everything on max.A/c,Heat,fans,sterio all the lights on etc.
Or in 120deg heat etc.
Everything has to work everytime.Maybe the car has to start and restart 25+ times who knows,thats the limits that the engineers require for everything.

Problem for us is the dealers who think that if a part was not installed by them it voids the warrenty.

[Flash]

Got my Steeda Pulleys today and I don't think we'll be replacing the Generator pulley, popped off the plastic cup on the generator pulley and there is no nut! a 3/4" hole with about 50 splines in it. the following is the Shop Manual explanation:

SECTION 414-02: Generator and Regulator 2003 Crown Victoria/Grand Marquis/Marauder Workshop Manual

DESCRIPTION AND OPERATION

--------------------------------------------------------------------------------

Generator
The generator has an internal voltage regulator that is not repaired separately. A new generator and voltage regulator must be installed as an assembly.

All Marauder 4.6L 4V applications are equipped with a one-way clutch (OWC) in the generator pulley. The OWC pulley temporarily disengages the generator rotor from the front end accessory drive (FEAD) system during high acceleration/deceleration rates on the engine, which may increase belt life and decrease belt chirp. A new OWC pulley and generator/voltage regulator must be installed as an assembly.

Sounds OK if it works.

[LincMercLover]

Hmm... the altenator does that too?!?! I knew the AC kicks off under WOT, but didn't know about the altenator doing that too. Hmm... sounds like Steeda will be needing to make us something "special" for that!

[MAD-3R]

From my understanding, we have half the underdriver pulleys as stock.