Belt length question. PS delete with 25% UD pulley
#1
Belt length question. PS delete with 25% UD pulley
Ok so I'm wanting to delete AC and power steering. AC is irrelevant because its on a different belt sooo, here is a pic of what I'm wanting to do,
I bought the car with a 25% under drive pulley. So my question is will I need the belt shown in pic or will I need a shorter one and if so how much shorter. Thanks
I bought the car with a 25% under drive pulley. So my question is will I need the belt shown in pic or will I need a shorter one and if so how much shorter. Thanks
#2
TECH Fanatic
iTrader: (5)
If you're going with a 25% under drive pulley you'll have less contact area with the belt/crank. So, adding a small diameter smooth pulley at the bottom would help to deflect the belt tighter against the crank. Bottom alt. bolt goes from 120mm to 150mm with a washer behind the low mount smooth pulley to keep from rubbing on the alt. housing. New smooth roller:Gates 36310, belt: 6K539, 6 rib small roller: Dayco 89009
Last edited by 64post; 08-01-2013 at 12:57 AM.
#3
I like this. Just a question, why is the 6 rib roller part #89009, but in the pic they used a 89015? In the pic it says to put a washer behind the pulley. With the part number you gave would i still use a washer or no?
And for everything all i need is the two rollers, belt, and 150mm bolt and washer?
And for everything all i need is the two rollers, belt, and 150mm bolt and washer?
#4
TECH Fanatic
iTrader: (5)
I like this. Just a question, why is the 6 rib roller part #89009, but in the pic they used a 89015? In the pic it says to put a washer behind the pulley. With the part number you gave would i still use a washer or no?
And for everything all i need is the two rollers, belt, and 150mm bolt and washer?
And for everything all i need is the two rollers, belt, and 150mm bolt and washer?
#5
11 Second Club
I'm running the same setup with a 25% pulley. Here's the part numbers I'm using. So far so good after about 5K miles.
-Goodyear Gatorback ribbed tensioner pulley - 49021
-10 x 130mm x 1.5 long bolt
-smooth idler pulley from GM accessory kit - 12568996
-Dayco 56" belt - 5060560
-Goodyear Gatorback ribbed tensioner pulley - 49021
-10 x 130mm x 1.5 long bolt
-smooth idler pulley from GM accessory kit - 12568996
-Dayco 56" belt - 5060560
#7
11 Second Club
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#8
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I'm running the same setup with a 25% pulley. Here's the part numbers I'm using. So far so good after about 5K miles.
-Goodyear Gatorback ribbed tensioner pulley - 49021
-10 x 130mm x 1.5 long bolt
-smooth idler pulley from GM accessory kit - 12568996
-Dayco 56" belt - 5060560
-Goodyear Gatorback ribbed tensioner pulley - 49021
-10 x 130mm x 1.5 long bolt
-smooth idler pulley from GM accessory kit - 12568996
-Dayco 56" belt - 5060560
#9
10 Second Club
iTrader: (14)
I'm running the same setup with a 25% pulley. Here's the part numbers I'm using. So far so good after about 5K miles.
-Goodyear Gatorback ribbed tensioner pulley - 49021
-10 x 130mm x 1.5 long bolt
-smooth idler pulley from GM accessory kit - 12568996
-Dayco 56" belt - 5060560
-Goodyear Gatorback ribbed tensioner pulley - 49021
-10 x 130mm x 1.5 long bolt
-smooth idler pulley from GM accessory kit - 12568996
-Dayco 56" belt - 5060560