pulley kits?

[stirfriedferret]

Chiming in here.  I have the Ralco RZ pulleys.  I can tell you first hand, that there is a 'power gain' that you can feel mid range; mostly between 2-4k rpm.  Might be different for others (I have AT).  The gain is very noticeable even with the butt dyno.  I hesitate to say that you made power.  It's more like freeing up lost power.  The other thing to think about is that since this replaces the crank pulley (which is our harmonic dampener), your idle 'may' be a little bit more rough/bouncy.  Mine was already rough for some reason, but this just seemed to amplify it.  I had an issue with my Ralco RZ crank pulley.  Not sure if other people had it, but the inside of the pulley was rubbing up against the block (which actually shaved off some of the material).  The shop threw the crank pulley on a lathe and cut off some of the material and it ended up to be a good fit.  My thought was maybe that my crank pulley was not actually made for my accord (even though it fit perfectly).  Pictures of this at the bottom.  But overall, I highly recommend this mod for those out there questioning it.  It may not be worth the full retail price, but since I got it for cheap, it's definitely worth it. 





The pieces of metal from my block.  Could've taken the front main seal along with it too.

Aaaaaaaaaaaaaand that's my review of my Ralco RZ under drive pulleys.

[Jeff Likes Bagels]

Damn, makes me wonder if that's happening to my car...

[Limmytimmy]

im nervous to use a lightweight crank pulley along with my 11.5lbs flywheel...can anyone comment on that

[Icebox]

im using the ur underdrive pulleys with a rsx type s flywheel, no issues.

[accordguy04]

I had a UR on my AV6 and took it off because I thought it was causing a vibration... Ended bein the axle, but I had already sold it.  I miss it, it just seemed to run thru the gears smoother and rev slightly faster.  (mine was stock dia.)

[timot_one]

I had the UR pulleys with the 14 lb RSX Type S flywheel, and had no issues. I have heard stories that since aftermarket pulleys don't have a damper, it will increase crank vibrations and affect your bearings. I'm not sure how true that is, but it is a concern among engine builders.

[Limmytimmy]

Yeaa I'm on the fence about this one I don't wanna have to worry, I've got the act 11.5lbs flywheel

[timot_one]

I'm sorry to hear that.  I'm assuming you have an ACT clutch too?

[Limmytimmy]

Idk why your sorry lol I love it...n no I've got an Exedy stage 1 organic clutch

[CrackerTeg]

He doesn't care for ACT.

[Limmytimmy]

Aaaahhh I see...well it's all good everyone has their preferences

[timot_one]

Actually, a lot of K Series guys avoid ACT since their products are known to fail and cause problems.  I had an ACT heavy duty pressure plate with full faced organic clutch, and it destroyed 2 OEM master cylinders, 4 aftermarket master cylinders, 3 Omni Power master cylinders, and 4 or 5 clutch pedal assemblies.  There's also another guy out here that has an Accord with an ACT extreme pressure plate with a 6 puck clutch and he's chewing through master cylinders like it's going out of style.  No thanks on the ACT stuff.  There are better products out there.  I've had much better luck with my Competition Clutch.

[Limmytimmy]

Alrighttt then haha I didn't know about all that but all I have of theirs is the flywheel so hopefully I won't run into those problems

[timot_one]

I hope not man.  I'll never spend another dime on anything ACT makes.

[fatbastard]

im looking at the Ralco RZ 914117 lightweight stock diameter pulleys for my 5AT. anyone who has violent reactions or horror stories please chime in now....  :