I saw reports of up to 20 hp gain from these, though a conserative republican friend says i'll only see about 3-4 hp. I have the 305 tbi motor, that has been bored out and decked, blah blah anyone have any idea what kind of power gain i'll actually have?

hate to agree with ur republican friend but like he said , 3-4 HP on your car sounds close

I have to agree with your Great Republican Friend. The lower numbers are more correct. Allen

i have the 2 pulley march set...

yeah i would think like 5hp.. you do get a little better throttle response..

I am cheap, so what I did was the following..

Made a switch to shutt the alternator off the "racing" only.
I have a serpentine belt, so I have another belt and routed it to miss the power steering.

With the 2 mods I listed, I could seen a solid tenth at the track, roughly about 10hp, maybe.

i've seen people drop 2-3 tenths with a full 3 piece set.

with that said, it's not the same in every case.

i dropped 1 tenth and gained 1 solid mph when i deleted the ps belt...so, what am i doing? going to a manual steering box, then i gain all that power all the time, instead of just at the track, and i loose about 30lbs. off the front of the car. (which is where you want to loose weight in these cars.)

i am also planning on picking up the bbk 3 pc underdrive pulley set, but all i have to drive is my alt., waterpump, and crank. that's it. nothing else.

you will also see a slight INCREASE in fuel economy, and the less weight of the aluminum pulleys helps the motor spin a little more quickly.

I used the 2 piece motorvation set and I noticed a couple of things
1) aprox. 45-50 miles more per tank
2) drop in alternator voltage when I am running the stereo hard
perhaps that equals a little hp put I have yet to go to the track to test it
just my .02

Here a UD Pulley question:

With a UD Crank pulley installed,Does it underdrive everything? Including Alt/PS/WP/AC and air pumps?

yes...it's the main pulley turning everything, so...

on a car with a/c, it may be effected in traffic sitting at a light or something.

Do they make pullys for v belt setups?

Yes.



Has anyone done comparisons between the different brands?

never done a comparison between the brands, but i KNOW that BBK and March both make excellent quality products and they deliver what they advertise.

yeah i want to knwo if the ud 2 peice march pulley set is worth the 100$ bill, ill run it on a 355 91 tpi with a bigger cam, roller rockers, high-flow ported tpi setup ect.... will i see a difference or not???? also im runnin 2 10s only about 500 watts and then a lil 200 watt speaker amp, will i have problems with this and the pulleys?

I noticed a little power problem with my 2 piece pully kit, I am runnin 2 12" subs with a 760 watt amp. in traffic with the sterio realy workin I notice a 1-3 volt drop on the gauge

http://www.thirdgen.org/techbb2/show...hreadid=306743

so they give you better gas mileage? has anyone had any charging problems?

i have march part # 4010 i noticed my amps go low at idle and i have just stock stereo, mayb a bigger alternator? kinda overkill for pulleys.

That's because you got the performance 3 piece set.
I'm selling the 2-piece "Power and Amp" which relieves you of any charging difficulties.

That makes no sense at all. why buy pullys to slow down your accesories for more power only to bog down your motor with a bigger alternator.

Yall need to make a choice between going fast (cool) or having a loud stereo (not cool).

Not tryin to flame, just a little friendly teasing

on that note. ..

my pulleys are still for sale.

2-piece March set new in box.
best possible set for those worried about charging difficulties.