TeamSwift

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.



See the last page for details.

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Contact 3tech: [email protected]

How much if Plain, non anodized?

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Metroless and looking for another already!!

No can do.
They are all anodized.

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Contact 3tech: [email protected]

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

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'94 Suzuki Swift g10 3tech stuff:Port&Polish,225/355 cam,11:1 CR, SS valves,+10 Cam gear,underdrive; K&N intake; LTLSU's Custom racing springs with Monroe struts (2" lower front, 0.5" lower back); 185/55/R14 Kumho Ecsta SPT tires on Eagle 040 rims; Stripped out interior and removed AC system

Mike, love the pulley.[edited]

Jay W
505/287 Dakota

I got mine 2 days ago. 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.

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'94 Suzuki Swift g10 3tech stuff:Port&Polish,225/355 cam,11:1 CR, SS valves,+10 Cam gear,underdrive; K&N intake; LTLSU's Custom racing springs with Monroe struts (2" lower front, 0.5" lower back); 185/55/R14 Kumho Ecsta SPT tires on Eagle 040 rims; Stripped out interior and removed AC system

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

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91 Sprint, 5 spd, 12* advance timing, 10* avd. cam gear,
3Tech MPG Head package, 9mm plug wires, 3Tech underdrive

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.

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HiTemp Inc. ....... taking over the world one Sprint Turbo and Swift GTi at a time.

Chassis Flex Motorsports

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.

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91 Sprint, 5 spd, 12* advance timing, 10* avd. cam gear,
3Tech MPG Head package, 9mm plug wires, 3Tech underdrive

I'll do it up tomorrow

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'94 Suzuki Swift g10 3tech stuff:Port&Polish,225/355 cam,11:1 CR, SS valves,+10 Cam gear,underdrive; K&N intake; LTLSU's Custom racing springs with Monroe struts (2" lower front, 0.5" lower back); 185/55/R14 Kumho Ecsta SPT tires on Eagle 040 rims; Stripped out interior and removed AC system

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

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Contact 3tech: [email protected]

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.

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'94 Suzuki Swift g10 3tech stuff:Port&Polish,225/355 cam,11:1 CR, SS valves,+10 Cam gear,underdrive; K&N intake; LTLSU's Custom racing springs with Monroe struts (2" lower front, 0.5" lower back); 185/55/R14 Kumho Ecsta SPT tires on Eagle 040 rims; Stripped out interior and removed AC system

hey do you have any 1.3 dohc pulleys left
cheers kev

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keep on truckin

I wasn't aware that I even had any.

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Contact 3tech: [email protected]

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"

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Contact 3tech: [email protected]

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

DAN

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

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

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'94 Suzuki Swift g10 3tech stuff:Port&Polish,225/355 cam,11:1 CR, SS valves,+10 Cam gear,underdrive; K&N intake; LTLSU's Custom racing springs with Monroe struts (2" lower front, 0.5" lower back); 185/55/R14 Kumho Ecsta SPT tires on Eagle 040 rims; Stripped out interior and removed AC system

Thanks Dan.

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Contact 3tech: [email protected]

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

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1994 Metro - MPH project (getting a DOHC G13B)
1994 Metro - MPG project (getting an XFi G10)
1992 Swift - Parts car (gone)
1991 Swift - Parts car (gone)
1990 Swift - Parts car
1997 Metro - Parts car (gone)
1993 Metro - Parts car
1989 Swift GTi - Parts car
1998 Metro - Parts car

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.

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Contact 3tech: [email protected]

what does the underdrive pully do?

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1991 Formula Firebird WS6
1994 Suzuki Swift

I was born at night,,,, but not last night

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 ) turning the accessories at a higher ratio.

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91 Sprint, 5 spd, 12* advance timing, 10* avd. cam gear,
3Tech MPG Head package, 9mm plug wires, 3Tech underdrive