after reading just about everything on SL about pulleys... do you NEED that pulley/gear removal tool in order to get the pulleys off or can you get them off with just hands or anything else?

 

what are naturally aspirated engines? are they just cars without forced induction?

 

which 3 do you have? and what is the difference between the cr-lite crank pulley and the 20% underdrive pully?? can u use both at the same time, if not which is better?

what setup do u have, im really interested in these

 

also, i run a lot of LED's in my car... would getting the alternator underdrive reduce my lighting power? im thinking it would....

also, when it says on the site that it averages 7-10 hp gains.. is that with JUST the 20% underdrive crank pulley?

 

I have the crank underdrive, alternator overdrive, and lightweight water pump pulleys.

and no you can't run the lite weight crank pulley and crank pulley. I would recommend the underdrive for an N/A or turbo car and if you are supercharged I would get the light weight crank pulley..go to the first page of this thread and they have a really good explanation on how the pulleys work and what they do.

And yes naturally aspirated engines mean no forced induction,

If I remember right I think I just yanked mine off lol

 

isnt running the 20% underdrive and the alternator overdrive at the same time counter productive or no?

if i run a lot of LED's in my car would getting the 20% underdrive crank pulley hurt my LED brightness since it reduces power to the alternator?

and when listing the weight differences, it shows the alternator and water pump pulleys being only 7 and 8 ounces different... is that really that much of a difference?

 

It's not going to affect anything if you run the underdrive crank and alternator overdrive and no it won't affect your LED's in any way

 

can u explain to me how using a underdrive pulley designed to give less power to the alternator and other things, then using a pulley that uses more power to the alternator, how is that not counter productive?

if i were to JUST go with the 20% underdrive, it would not effect my LED's in anyway?

 

The underdrive crank pulley has no affect on the alternator and the overdrive alternator pulley ONLY affects the alternator.

If you don't want to believe me then don't but I've already told you to read the first page of this thread.

Running any of these pulleys in any combination will not affect your LED"s

 

hey man, i did read the first page, and im not disbelieving you... im asking as many questions as i can to fully understand everything before i purchase this, i do this with anything...

i fully trust everything u say, i just need to make sure i understand it all, thats what all the questions are for... i appreciate u takin time to help me.

one more question, and i htink thats it... for now lol....

the site says 7-10 hp gains... is that with the 20% underdrive only? or with the underdrive and all lightweights?

also, isnt 14 ounces reduced to 6 ounces only an 8 ounce difference aka less than a pound? isnt that pretty insignificant?

 

Since all the pulleys are smaller they are lighter hence less rotational force the engine has to spin hence the HP gain. It's not a lot but when you put all 3 pulleys together (and I believe the 7-10 gain is with all 3) you're dropping quite a bit of rotational mass from the engine so the engine doesn't have to work as hard to turn everything. All the pulleys are a lot smaller than the stock ones..I don't have pics of this though

 

ok man thanks, i understand a lot more now thanks to you.

if i get the 20% underdrive... which accessories does that directly effect, and i know they say it doesnt decrease anything below noticeable amount, but is that true?

and you only need the overdrive alternator pulley if u are running alot of audio or video correct?

 

why dont you just get a over and under pully this way it =s everythign out

 

it doesnt work that way...

emperor... what accessories does the crank pulley underdrive and are any of them noticeable? since you own them, do you notice like lower ac power or anything? any review on if u could see a negative difference in any of ur accessories would be great before i buy the kit

 

That makes no sense at all

krazyjvilled - I didn't personally notice any change in any of my accessories..if there is a change it never occurred to me. As far as power goes I didn't notice much of a difference either. I already had my intake/exhaust/header/spipe setup by the time I installed the pulleys but what I think I did gain was that bottom end I lost when I added the header

 

ok cool. i dont think ill be getting a header so i wont have to worry about that. do you know what accessories it is supposed to underdrive?

 

I honestly don't know but it isn't going to affect anything to the point where you will notice it. Everything in my car works just as it did before the pulleys were installed.

 

great! now if u could just answer my s-pipe/downpipe question in my acceleration thread, you'll win the awesome guy of the week award lol

 

get the underdrive crank and overdrive alternator. That way you're getting the most benefit as well as keeping the car powered as much as possible.

 

i think im gonna get the kit of all 3.. just gotta save up a bit