SLP underdrive pulley, worth it?
Melting Slicks
Joined: Sep 2007
Posts: 2,597
Likes: 3
From: READING PA
St. Jude Donor '08-'09-'10
no one who replaced the UD pulley in a effort to pick up the 8 or 10 HP.
The only negative is Quite a bit of work and you will need another size belt for the 25% ud reduction. Some 05's have reported Generator charging CEL's every now and then. Its A good idea in one way that it is still A bolton if you are trying to get the record.
Burning Brakes
Joined: Aug 2007
Posts: 962
Likes: 0
From: SPRING HILL FL
Generally the ud pulley change is part of a planned Cam change. I know
no one who replaced the UD pulley in a effort to pick up the 8 or 10 HP.
The only negative is Quite a bit of work and you will need another size belt for the 25% ud reduction. Some 05's have reported Generator charging CEL's every now and then. Its A good idea in one way that it is still A bolton if you are trying to get the record.
no one who replaced the UD pulley in a effort to pick up the 8 or 10 HP.
The only negative is Quite a bit of work and you will need another size belt for the 25% ud reduction. Some 05's have reported Generator charging CEL's every now and then. Its A good idea in one way that it is still A bolton if you are trying to get the record.
Tech Contributor
Joined: Mar 2003
Posts: 12,094
Likes: 197
From: Colorado Springs, CO
St. Jude Donor '08-'09-'10-'11
Generally the ud pulley change is part of a planned Cam change. I know
no one who replaced the UD pulley in a effort to pick up the 8 or 10 HP.
The only negative is Quite a bit of work and you will need another size belt for the 25% ud reduction. Some 05's have reported Generator charging CEL's every now and then. Its A good idea in one way that it is still A bolton if you are trying to get the record.
no one who replaced the UD pulley in a effort to pick up the 8 or 10 HP.
The only negative is Quite a bit of work and you will need another size belt for the 25% ud reduction. Some 05's have reported Generator charging CEL's every now and then. Its A good idea in one way that it is still A bolton if you are trying to get the record.
It isnt a charging issue so dont think its a deciding factor if an owner of a 2005 should worry about. It never caused an issue and i saw it twice when starting my car in 4 years and it cleared 2 seconds later.
8-10hp is a no brainer.
