TwinTurbo93

Hey all !
Can someone tell me what's the lightest or best pulley set I should get for my FD.
Also for good price
Unorthodox has some nice pulleys but they are to freaking expensive

Thanks in advance, John.

RedX7

I just bought a set of the "expensive" UR pulleys. I'll let you know how they work out once I get them in. But yeah, they are freaking expensive.

potatochobit

iTrader: (1)

rotary extreme says it now offers the lightest. it seems to be same design as the bonez and pettit. easiest to put on, no moving the shaft which is dangerous.

Jason

iTrader: (5)

I also carry a main pulley
http://66.216.67.51/product.asp?0=209&1=249&3=765

TwinTurbo93

Does anybody else offer the complete set exept for UR?

RedX7, let me know how it fells after you install'em and how big the difference is, BTW did you get the UR Ultra SS 4 piece Pulley Set?

jdemmie

Are there only the 4 bolts to remove th original pulley? I read something about a center bolt?

Jack

RedX7

TwinTurbo93, I'm not sure if it is the SS set or not, but it does come with four pulleys. Main, alternator, P/S, and W/P. I'll let you know what I feel though once I get them in.

emericanchaos

if you get a quality set i don't think there'd be much difference between them and the absolute lightest unless the materials were different i.e. aluminum vs titanium. but titanium will cost a bit so i'd just look for aluminum in my price range

mike2016

I carry the Kazama aluminum pulley sets, the alternator pulley has a nice rotary shape.

http://www.optionimports.com/rx7fd3sparts.html

cournal

i,m running a complete set of unorthadox. they are the best. i my opinion all you need is the crank pully.

TwinTurbo93

Yea, I'd like to know the before and after feeling.

As for the crank pulley I think the lightest is the Rotary Extreme one, it's lilte over priced but it comes with 2 belts since it unerdrives by 25% and I will probobly go with it and than in future will get the rest of the pulleys.

TwinTurbo93

Nice Website, new to me.
You don't seem to have the crank pulley right, or I'm maybe bugging out.
I love the rotary shaped alt. pulley, BTW do they come in silver or just in red?

TwinTurbo93

mike2016

nope I don't have the crank pulley. They only come in Silver. but you can always have them polished.

also, I mainly sell 240SX/SR20DET parts, so most RX-7 people don't know my site. but since I am the offical dealer of Kazama, they require me to carry all kinds of their products. Their FD3S parts are newly released and I have a few of them instock.

mike2016

also, I just came back from Japan, I visited Kazama and various shops in Japan. I have NEVER seen anyone in Japan replacing the crank pulley on ANY car.

It's also not a good idea to underdrive the accessories especially the water pump, you will be flowing less water at idle and this will probably cause problem. Instead, they have aftermarket "Overdrive" water pump pulley for the SR20 and some other cars.

Replacing the crank pulley will also shorten the life of your engine bearings. but correct me if I'm wrong, I don't have a rotary, but that's what happens on cylinder engines. rotaries probably don't have that kind of vibration like a 4cyl does.

TwinTurbo93

Hey Mike I was checking the pulleys on your website and the water pump pulley says is increased size to prevent cavitation,

what it means to prevent cavitation?

Also if the water pump pulley size is increased is the same as the crank pulley to be decrased or underdrived, the water pump will still be turning a bit slower as unerdriving the main pulley, right?

DaiOni

dp

DaiOni

the car on that page is the kazama widebody fd - nice car - all those parts are available from kazama too

Tim Benton

iTrader: (1)

TT93, prevents cavitation means it slows the water pump down, so that at higher RPMS, the water pump is still pushing the water through the system and not just sloshing it around in the area near it. Think of a food chopper thing, when you have it at a slower pace, it makes the fluid flow, but when you crank the thing up real fast..it more or less makes a mess and doesn't make the fluid flow, just chops at it.

Tim

TwinTurbo93

That's a good point, I guess I never looked at it that way.
So than if you install an underdrived crank pulley (like Jason's on RX7store.net) you it will aslo help prevent cavitation correct me if I'm wrong.

Tim Benton

iTrader: (1)

yep, an underdrive main crank pulley ends up turning the water pump slower than a stock one. I've had one on for 4 years with no problems.

Tim

Fatman0203

So the Judges Choice is ..........................?

bureau_c

The cavitation problem should only be an issue at high rpms, right? I've always wondered about water pump performance with underdrive pulleys for a street car...i.e. lots of idle and cruise driving. In that case, are you doing more harm than good?

jds

DamonB

For water pump pulley and temperature info, lookie at this thread here

TwinTurbo93

Well, thats's my concearn also, I use my car as a daily driver and and being that I live in NYC traffics are murderers here and my car will not get much into high rpm's untill I get into the open road.

So Tim did you use you car mostly on the track while with the underdrived pulley or also for everyday street driving?

Thanks .