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Underdrive pullies - [3 Tech] - currently out of stock
http://www.teamswift.net/viewtopic.php?f=17&t=16180
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Author:  suprf1y [ Wed Jul 13, 2005 5:24 pm ]
Post subject:  Underdrive pullies - [3 Tech] - currently out of stock

I have underdrives in stock for 1.0, and 1.3 SOHC motors with the 3 groove belt. Made from 6061 aluminum, and red anodized, they are available in either 4 bolt, or 5 bolt, and feature a 25% underdrive. Included with the pulley are new high quality, rolled thread socket cap screws.
Special price for this batch.
$50us to teamswift members, plus shipping.

Image

See the last page for details.

Author:  Kento87 [ Wed Jul 13, 2005 5:26 pm ]
Post subject: 

How much if Plain, non anodized?

Author:  suprf1y [ Wed Jul 13, 2005 5:31 pm ]
Post subject: 

Kento87 wrote:
How much if Plain, non anodized?


No can do.
They are all anodized.

Author:  Zurech [ Wed Jul 13, 2005 8:39 pm ]
Post subject: 

I'll take one... pm'd ya.

Author:  woodrufj [ Thu Aug 04, 2005 4:52 pm ]
Post subject: 

Mike, love the pulley.[edited]

Jay W
505/287 Dakota

Author:  Zurech [ Thu Aug 04, 2005 8:22 pm ]
Post subject: 

I got mine 2 days ago. 8) Now all I need to know is the length of belt to get. I could do the math..... but if someone knows then why bother finding all the details involved to figure it out.

Author:  slazzy2k [ Thu Aug 04, 2005 10:07 pm ]
Post subject: 

If you go to Canadian Tire, the proper belt will be a 310K3. The brand is 'Power Torque' or something like that.

Author:  HiTempguy [ Thu Aug 04, 2005 11:27 pm ]
Post subject: 

Crappy Tire very rarely carries that size, simply because its used on incredibly few applications. I would highly suggest just going to NAPA. A 300K3 will indeed fit, and once it wears in (stretches), you will even have to tighten it a bit. But it is SNUG when you first put it on.

Author:  slazzy2k [ Thu Aug 04, 2005 11:32 pm ]
Post subject: 

Snug indeed. I just took back the 300K3 today because there was no way in hell that thing was going on there without making the alt. pulley grind its way into the water pump pulley. Do the 310.

Author:  Zurech [ Fri Aug 05, 2005 12:38 am ]
Post subject: 

I'll do it up tomorrow :D

Author:  suprf1y [ Sun Aug 07, 2005 2:37 pm ]
Post subject: 

slazzy2k wrote:
Snug indeed. I just took back the 300K3 today because there was no way in hell that thing was going on there without making the alt. pulley grind its way into the water pump pulley. Do the 310.


I had no problem using the 30" It was tight, but it went on.

Author:  Zurech [ Tue Aug 16, 2005 12:45 am ]
Post subject: 

OK I have the underdrive on... I've been waiting to post this b/c my lense on my digicam is acting up and I wanted to include pics, but that wont happen in the next few days or so.

I've had the underdrive on all week, and its made a noticable difference. It idles so much nicer now, and I was even able to advance the ignition a bit more (wierd eh?). I first had a 31" belt on it, but found it too long, so I went with the 30 and am glad I did. I've not noticed any mpg gains yet, because I've yet to fill up with gas, although it gets through the powerband quicker and has made a noticable difference on accel. Just to give an example of how small it is, it fits inside the old pully and has about 7-8mm to spare in space when its in it. It is TINY and light. When I get my lense clean I'll post some pics and update my gallery.

Author:  swiftmini [ Mon Aug 29, 2005 7:09 am ]
Post subject:  any left

hey do you have any 1.3 dohc pulleys left
cheers kev

Author:  suprf1y [ Mon Aug 29, 2005 8:39 am ]
Post subject:  Re: any left

swiftmini wrote:
hey do you have any 1.3 dohc pulleys left
cheers kev


I wasn't aware that I even had any.

Author:  woodrufj [ Mon Aug 29, 2005 3:27 pm ]
Post subject: 

What do I need to ask for at the Kragen counter to get the right belt? Just "30inch 3 rib belt please", or something more specific?

Jay W
505/287 Dakota

Author:  suprf1y [ Mon Aug 29, 2005 3:43 pm ]
Post subject: 

woodrufj wrote:
What do I need to ask for at the Kragen counter to get the right belt? Just "30inch 3 rib belt please", or something more specific?

Jay W
505/287 Dakota


That might work. You could also tell them the stock application, and then ask for a 30" instead of the stock length, which I think is 32"

Author:  SprintDan [ Wed Aug 31, 2005 8:47 am ]
Post subject: 

The Gates and Atlas part# for a 30.625" belt is K030300 that should work for you on this pulley.

DAN

Author:  woodrufj [ Wed Aug 31, 2005 11:12 am ]
Post subject: 

I just asked the guy for a metro pully, but in 30". he had a 30" and a 28"?!?. What would a 28" fit, our belt is as small as I could imagine.

The 30" was a little snug, but I got the belt around the crank, alternator and three quarters the waterpump then turned the engine with a wrench and the belt snapped into place. It needed to be snugged just a little.

Jay W
505/287 Dakota

Author:  Zurech [ Wed Aug 31, 2005 2:06 pm ]
Post subject: 

The 30" for me was fine... and its slacked off a bit since then even b/c of the usual stretch.

Author:  suprf1y [ Wed Aug 31, 2005 9:57 pm ]
Post subject: 

SprintDan wrote:
The Gates and Atlas part# for a 30.625" belt is K030300 that should work for you on this pulley.

DAN


Thanks Dan.

Author:  Gasoline Fumes [ Thu Sep 01, 2005 5:47 am ]
Post subject: 

woodrufj wrote:
I just asked the guy for a metro pully, but in 30". he had a 30" and a 28"?!?. What would a 28" fit, our belt is as small as I could imagine.

Jay W
505/287 Dakota

Some Hondas have the water pump driven by the timing belt, so the accessory belt only drives the alternator.

Author:  SSGTi12345 [ Thu Sep 01, 2005 11:35 am ]
Post subject: 

suprf1y have yoyu considered making and dohc pulleys yet? ill be a for sure buyer and im sure a few other would be to.

Author:  suprf1y [ Thu Sep 01, 2005 3:52 pm ]
Post subject: 

SSGTi12345 wrote:
suprf1y have yoyu considered making and dohc pulleys yet? ill be a for sure buyer and im sure a few other would be to.


Not really. Likely not enough demand. The 3cyl. market is largely underserviced. Thats what allowed me to spend over $1k on pullies, with little worry that I'd be stuck with them.

Author:  redshirt [ Thu Sep 08, 2005 4:57 pm ]
Post subject: 

what does the underdrive pully do?

Author:  slazzy2k [ Thu Sep 08, 2005 6:53 pm ]
Post subject: 

The underdrive pulley does 2 things:

1. It reduces rotating mass from the crankshaft, allowing it to make RPM changes more quickly (quicker acceleration).

2. It is 25% smaller in diameter than the stock pulley. This means that for every turn of the crank, your accessories are not turning as much as they used to. This takes a bit of a load off of the engine, further freeing up horsepower that was previously wasted (ok maybe not wasted since you *do* need the accessories :wink: ) turning the accessories at a higher ratio.

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