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Views on Underdrive Pullies for 4.6 2V

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Old 05-02-2007, 02:45 PM
  #11  
djb1187
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Default RE: Views on Underdrive Pullies for 4.6 2V

and i wasnt even referring to your rumour being rediculous. Im saying all the UDP rumours in general are rediculous. Blown oil pump, Overheating engine, Bad A/C, Dead Battery, Failed Altenator, Engine Stalling, Alternator not being effective, Aftermarket Amplifier killing batter in combination with UDPs. Its rediculous. Most of the people on this forum have UDPs and never experience these problems. Unless they have piggybacks or something
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Old 05-02-2007, 02:48 PM
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2002GTAUTOVERT
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Default RE: Views on Underdrive Pullies for 4.6 2V

it wasnt specified if they were piggybacks or not, when i had them my a/c was about half as effective as it was before them, luckily they were installed at the end of september so it was only 90-100 outside. i say save your money and do some suspension work
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Old 05-02-2007, 02:50 PM
  #13  
Nitti00GT
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Default RE: Views on Underdrive Pullies for 4.6 2V

My motor shakes. I'm thinking it's the exhaust leak but that is getting fixed now so if it's not that then I am getting my crank pulley removed and reinstalled by professionals.

I'll let you know if I like my u/d pullies when I get my car back working good.
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Old 05-02-2007, 02:53 PM
  #14  
Nitti00GT
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Default RE: Views on Underdrive Pullies for 4.6 2V

ORIGINAL: djb1187

and i wasnt even referring to your rumour being rediculous. Im saying all the UDP rumours in general are rediculous. Blown oil pump, Overheating engine, Bad A/C, Dead Battery, Failed Altenator, Engine Stalling, Alternator not being effective, Aftermarket Amplifier killing batter in combination with UDPs. Its rediculous. Most of the people on this forum have UDPs and never experience these problems. Unless they have piggybacks or something
That's one of the reasons I didn't install my Alternator pulley. Do you have to installed the alt pulley? Also what is piggyback?
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Old 05-02-2007, 02:57 PM
  #15  
DTK
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Default RE: Views on Underdrive Pullies for 4.6 2V

Some do not install the Alt. pulley because the one with the udp kit is very close in diameter.
So it is almost not worth the trouble but the other 2 are a must to get any benefits.
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Old 05-02-2007, 03:01 PM
  #16  
Nitti00GT
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Default RE: Views on Underdrive Pullies for 4.6 2V

Oh ok. Well I figured I wouldn't get much of a benifit from the alt pulley anyway. Are the BBK pullies the "piggyback" that was mentioned?
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Old 05-02-2007, 03:06 PM
  #17  
skinnidaniel
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Default RE: Views on Underdrive Pullies for 4.6 2V

yes the BBK'S are piggy backed. its where the new crank pulley is bolted to the old crank pulley.... and i agree this is JUNK.... i just cant afford the dampner i want..
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Old 05-02-2007, 03:27 PM
  #18  
4.6BLKGT
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Default RE: Views on Underdrive Pullies for 4.6 2V

if you plan on ever supercharging don't waste your money, if not then why the hell not
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Old 05-02-2007, 03:37 PM
  #19  
DTK
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Default RE: Views on Underdrive Pullies for 4.6 2V

If you go UDP keep the stock pullies in case you go FI down the road and then swap them back and sell the UDP.
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Old 05-02-2007, 03:55 PM
  #20  
JT76
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Default RE: Views on Underdrive Pullies for 4.6 2V

Whats the realistic RWHP that one can expect from UDP's?
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