Hi guys, I was going to install the Agency Power underdrive pulley to see if it really does give the 7whp gain they claim. Anyhow, I will be doing a base dyno run, install underdrive pulley + injectors, after dyno+tune. I originally offered this invitation to the Scinergy folks but some cant make it so I am extending this offer to SL. Those who want to come watch/learn just let me know. Sign up here http://smoothlinezforums.com/viewtopic.php?p=201#201

If you guys have thought about changing the pulley, this day will tell you if its worth it or not. Those of you who have put the pulley on, this day will tell you if you actually gained any power, of if it only seemed like it.

i put this on last week. if 7whp results from it from your dyno run, then God have mercy .

good luck man.

i put this on last week. if 7whp results from it from your dyno run, then God have mercy .

good luck man.

haha, thanks man. Thats the whole point. The online community should be sharing true info...

Agreed, can't wait to see the results. It should give you SOME gain.. just how much... *shrug* Lighter spinning mass = less robbery O power.

also, let's reclarify one detail.
The Agency Power pulley is not underdrive, it is merely lightened, unless they came out with a totally new one recently ...

also, let's reclarify one detail.
The Agency Power pulley is not underdrive, it is merely lightened, unless they came out with a totally new one recently ...

The engine is internally ballanced. Both the Perrin and the AP are just lighter versions of our stock one.

Keep us posted. I wont be able to come out there for the dyno day, however I do want to see the power it produces. If it makes good power, I will want one.