Do they really work? How many HP can I expect by installing them? Will they harm my engine in the long run? Are they worth the money? Any info would be appreciate it.

 

They don't do much. I took my PS belt off and still didn't feel a difference. I'd think yanking the belt would do more than putting a larger, lighter pulley on the PS and alternator. I'd spend the money elsewhere. Plus, the install on those is a bitch.

 

screw the pulleys. I heard they only give you 2wHp or so. Not worth it. Get something else or spend that money on FOOD!

 

I have the Unorthodox Underdrive crank and pulley set. Many people warned me after I put them on because of the non harmonic dampening on them. I believe AEM makes crank pulleys that have this harmonic dampening to prevent crank walk or something.

Well I had these pulleys on for 3+ years and I don't notice any engine characteristic differences other than my turbo bolt on!

You'll notice the power difference when you have a lot of electricals and air conditioning on. It saves power consumption I guess. For instance, I was racing with the air conditioning on (dont do this) before/after pulleys and there was a minor performance improvement. I believe the pulleys will be more noticeable with force induction. It also saves you 7 pounds or something. That crank pulley is heavy man! And they look cool!

hehe

-AzianAvenger

 

just remove your jack if you wanna save the weight that pulleys will do. not worth the money.

 

Do anyone have any before and after dyno plots? Are AEM the only ones with the harmonic balance?

 

I believe AEM only makes power steering and alternator pulleys.

 

So what should be my next mod. I already have shocks, springs, swaybars, brakes, AEM intake and exhaust. I have been thinking about underdrive pulleys, cam gears, testpipe with O2 sim, what do you think?

 

Well I was in a similiar situation. . All these add ons that you mentioned are probably only going to give you 10-12 horsepower. I think the biggest difference would be camshafts, an ecu, bigger injectors, and cam gears. But this will cost like $3,000 for a good setup. Might as well go turbo. And in all honesty sake, I highly recommend FI. You can find used supercharger or turbo kits starting at 1,500 if you look hard enough.

That is just my opinion. I have had Drag gen 3 kit for over 2 years now on a stock block and it is running fine. Granted I am running really rich and probably could make more power if I tune it but I happy with it right now. I run 6-10 pounds of boost. I spent about $3,500 for my setup (most of it was used). This included fuel, turbo kit, ignition kit, guages, and other accessories.

Never looked back after I bought turbo man. But then again it is kinda expensive but the best bang for the buck besides N02.

-AzianAvenger


[Modified by AzianAvenger, 6:48 AM 3/8/2002]