Anyone have one of these installed? Have you noticed a big improvement? They have them here for $90 shipped best deal I have found so far. http://www.mrjosh43.com/parts.html
that sounds a tad steep, mine was underdriven also, and was only 50, its 1 lb it revvs alot faster, but i have an 11 lb flywheel too thats the most responsive mod that ive done flywheel
i just put mine in about a month ago. didnt notice a HUGE improvement. however my car revs faster, and idles lower. also at cruising speeds my RPMs are about 250-500rpm lower than they wee before i installed the pulley. the bigest gain i noticed was a 3-3.5 MPG gain. that is still with me being pretty tough on the car. so i think of this as an investment. (if you do this ou may need new belts.)
I have the new belts, I figured this may be a good idea while a was changing them anyway. AWDimprezaL where did you pick up yours?
I don't think I want to go with the unorthodox version of the pulley, I've read it’s much harsher on your engine than a normal lightened version. But then again any driving is harsh on an engine.
the new belts you got are they the same size as the stockers? because when you under drive the ACC you are using a smaller crank pulley. so you will need shorter belts.
I meant I don't want the underdriven version, not unorthodox, I know unorthodox is a brand. Anyway I did pick up the stock belts, will they work on a standard lightweight pulley?
sorry to go off topic, but do all ej motors share the same crank pulley? found alot of AEM on ebay for a good deal...like 100 shipped!
I've had my Mr. Josh pulley on for about 3 years now. I was his first customer, and my G-tech reported an 8 HP gain the next day on the same road. I felt the extra pull immediately with most of the pull being on the upper RPMs. The Mr. Josh pulley is stock size, so your stock belts will fit perfectly.
according to UR any ej pulley will any ej engine. ie my 2.2l underdrive pulley will work on a forester, wrx, STi legacy.....