You guys can say what you want but wheni put in that little thing for the alt and the one for the crank it was a diff sorry i haven't gotten a dyno but nows not the time for me period (not a good 6months please allmighty bush deploy me for just 6months) anyways.....

 

Actually, I've heard of some decent gains from pullies. Yeah it's not gonna be a huge gain like f.i. but it's one of those supporting mods like the balance shaft replacements. The more mods you have, the more you'll gain. I'm actually putting the crank pulley on soon.

 

I will disagree with this. On my cavalier. I did a before, and after dyno. I designed and made a lighter crank (1/3 the weight) and alternator pulley (1/2 the weight). I made 8 more whp and 6-7 more ft-lbs across the whole RPM range. I did this for my last project for my Bachelors in Mechanical Engineering. I have sold 34+ sets to the j-body community so far, and ALL said they could tell a difference. I sold a few alternator pulleys to a few HHR owners and cobalt owners. All have been very happy.
Heres the after dyno with my cav. I have the before and after dyno sheets somewhere.
Click here to see Video

 

Ok ANything that gives me a few more horse is ok with me where can I buy?

 

Ditto.. If it's not too expensive, relatively easy to do, and adds even a little power.. Where can we buy these from?

 

I find this extremely hard to swallow for pullies alone.

 

^-- its true. People have been doing this for years now. On some small engines the gains can be higher because the engine isn't working as hard. My Prelude I had made just over 10hp to the wheels from a lightened and underdriven crank/alternator/powersteering pulley combo. You're not GAINING horses as much as FREEING up some of the horses you already have.

Think of it like a 10 speed bike. Change gear sizes and its either harder or easier to pedal right? Same thing. Changing the pulley size (or weight) can make it easier for the engine to rev up. Most noticeable for a "butt dyno" would be watching the revs. A pulley swap will make the engine a little more rev happy.

 

Granted, but we are talking ounces, not pounds, and the diameter is not that much. I totally understand the concept, last truck I removed the stock fan/clutch setup for a pair of 14" electrics. Yes I could tell the engine would spin more freely. I understand it is freeing up power and not "making" it. But the results show up on a dyno as gained HP/TQ at the wheels. I can believe 2/3, but 8? That would reqire proof for me to believe. Sorry.

 

I put a lighter flywheel on my Datsun years ago and it made a HUGE difference.

So again, I reiterate-
How much
Where can we get
How hard to install
?????