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under drivers??? 

 

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 Post subject: Re: under drivers???
Posted: Thu Nov 25, 2010 7:25 am 
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the pulleys are actually bigger, spinning stuff slower, putting less load on the engine.

i don't like the idea at all, slowing down your alternator, charging problems may arise
slowing down your power steering, dry steering in carparks may be harder

and so on. i've never used them but i'm thinking that may be a problem

 

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 Post subject: Re: under drivers???
Posted: Thu Nov 25, 2010 8:43 am 
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you can buy kits on ebay for round the $300 mark and include a belt, i couldent find one of these 300 dollar wonders but hears a 420 buck one
http://cgi.ebay.com.au/FORD-FALCON-BA-BF-FG-4-0-DOHC-20-UNDERDRIVE-PULLEY-KIT-/200481801292?pt=AU_Car_Parts_Accessories&hash=item2eada5844c

 

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 Post subject: Re: under drivers???
Posted: Thu Nov 25, 2010 9:13 am 
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WILDEB wrote:
the pulleys are actually bigger, spinning stuff slower, putting less load on the engine.

i don't like the idea at all, slowing down your alternator, charging problems may arise
slowing down your power steering, dry steering in carparks may be harder

and so on. i've never used them but i'm thinking that may be a problem



Thats the part i am concerned about but people have posted their experience and found nothing has changed at all, just more powaaa! hmmmmm


winman wrote:
you can buy kits on ebay for round the $300 mark and include a belt, i couldent find one of these 300 dollar wonders but hears a 420 buck one
http://cgi.ebay.com.au/FORD-FALCON-BA-BF-FG-4-0-DOHC-20-UNDERDRIVE-PULLEY-KIT-/200481801292?pt=AU_Car_Parts_Accessories&hash=item2eada5844c



I think that was the one i found last time, i thought it wasnt powerbond but that seems to be the one to get

 

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 Post subject: Re: under drivers???
Posted: Thu Nov 25, 2010 10:49 am 
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Most accessories are over driven heaps anyway so putting under drives on does Bugger all on how hard the steering is and the charge of the altanator.

They can be a great bolt on mod for a little extra go.

Also dry steering is bad for powersteering and shouldn't be done.

 

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 Post subject: Re: under drivers???
Posted: Thu Nov 25, 2010 2:16 pm 
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what is dry steering?

And i have underdrives.. didnt need a new belt.
Power gain is suprizindly good.

 

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 Post subject: Re: under drivers???
Posted: Thu Nov 25, 2010 4:18 pm 
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Benny D wrote:
what is dry steering?

And i have underdrives.. didnt need a new belt.
Power gain is suprizindly good.



steering while the car isn't moving

 

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 Post subject: Re: under drivers???
Posted: Thu Nov 25, 2010 5:57 pm 
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DormanAU wrote:
Most accessories are over driven heaps anyway so putting under drives on does Bugger all on how hard the steering is and the charge of the altanator.

They can be a great bolt on mod for a little extra go.

Also dry steering is bad for powersteering and shouldn't be done.


i do know this but if your in a tight carpark it can't be helped

 

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Weekend driver: EA SVO AU motor. Built BTR. TCE 2800 stall. T76 turbo. Locked diff. On E85. approx 320rwkw. 11.5 @121mph

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 Post subject: Re: under drivers???
Posted: Thu Nov 25, 2010 6:15 pm 
Oompa Loompa
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The belt i got is a dayco belt.
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 Post subject: Re: under drivers???
Posted: Thu Nov 25, 2010 7:23 pm 
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Dunno about the sixes, but accessories appear to be unaffected on the 8's.

I fitted a set to mine, used the same belt, and has had no impact on any of my accessories.

Make sure you put the alt pulley on too as it's not just for show, it will actually return your alt back to normal operating speed. I would imagine if you retained the stock alt pulley but changed the crank and water pump, you would lose charge VERY slightly.

They are a very worthwhile mod and i would recommend them to anyone.

 

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 Post subject: Re: under drivers???
Posted: Thu Nov 25, 2010 11:43 pm 
Oompa Loompa
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was going through my car mods and found an old document.

Underdrive Pulley - part number PBU1157-SS20
Dayco Belt - part number 6PK2160
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 Post subject: Re: under drivers???
Posted: Fri Nov 26, 2010 1:44 am 
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Ride: Bionic BA MkII XR6

Power: 175 rwkw

Location: Perth
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Anybody got a pic of one of these fitted? I see kits on ebays with extra little pulleys and wonder where it all goes

 

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 Post subject: Re: under drivers???
Posted: Fri Nov 26, 2010 8:39 am 
Getting Side Ways
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correct me if im wrong but i think those two extra pullys are for the alternator and waterpump so they still work the same as before underdrivers

 

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BA XR6
Performance mods: typhoon + territory pipe with K&N filter, full exhaust, BPR generic tune, lowered, xr6t front brakes, territory rear brakes
Visual mods: 19" rim, lower grill mesh, oil pressure and vacuum gauges, engine bay lighting, foot well lights
some of my main mods

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 Post subject: Re: under drivers???
Posted: Fri Nov 26, 2010 11:13 am 
Stock as a Rock
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Ride: Bionic BA MkII XR6

Power: 175 rwkw

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Yeah - I don't know enough about them to know.

 

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BIONIC 2005 BA Mk2 XR6 - XR8 Snorkle - Typhoon 2nd CAI - K & N Panel Filter - polished BBM intake - polished ceramic coated Pacemaker 4490 headers - Magnaflow 3.5" high flow Cat - Full mandrel stainless exh syst - 4speed SSS -BPT Custom tune - 20% UDrive - XR8 Calipers/rotors - 175 rwkw

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 Post subject: Re: under drivers???
Posted: Fri Nov 26, 2010 11:20 am 
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winman wrote:
correct me if im wrong but i think those two extra pullys are for the alternator and waterpump so they still work the same as before underdrivers


That's correct, if you read my above post you would see that i said that.

 

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 Post subject: Re: under drivers???
Posted: Fri Nov 26, 2010 1:40 pm 
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found a few of the cheaper ones someone mentioned but you'll notice they only contain the harmonic balancer and belt, the other link contained the 2 pulleys for alt and water pump :)

http://cgi.ebay.com.au/UNDERDRIVE-KIT-F ... 53e38fd134

http://cgi.ebay.com.au/BA-Falcon-6-Cyl- ... 2c58d8a416

 

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