Underdrive pulleys...
1st Gear Member
Joined: Aug 2005
Posts: 63
From:
RE: Underdrive pulleys...
whats the difference between 25% and 42% pulleys?
also need to find a place to buy them that ships to canada.
and last but not least is there any other 98 sixers that have these pulleys and what could you tell me about them?
thanks for the help!
also need to find a place to buy them that ships to canada.
and last but not least is there any other 98 sixers that have these pulleys and what could you tell me about them?
thanks for the help!
The Godfather
Joined: Sep 2005
Posts: 15,480
From: Temple, Texas
RE: Underdrive pulleys...
25% reduction kits, are for 94-98, some stites show 94-04, run about $80, include a 25% size ruduced crank pulley and a conterweight alternator pulley. 42% reduction means the crank pulley is 42% smaller than stock. Made for 99-04 with the harmonic balancer, and says it will mount up to a 94-04 without the balancer, not sure about the 94-98, tring to find out myself, advertised to raise hp by about 15. The full kit with belt and harmonic balancer with water pump and crank pulley runs $200 on rpmoutlet.com. Go check them out. 42% also come in lightweight billit aluminum, 25% come in billit steel. Are fairly heavy but advertised to rais hp by about 10.
6th Gear Member
Joined: May 2005
Posts: 7,445
From:
RE: Underdrive pulleys...
ORIGINAL: blk98stng
ahh i see now, does anyone know of a good place to get a full set of the 25% pulleys?
ahh i see now, does anyone know of a good place to get a full set of the 25% pulleys?
do you know were i can find 25% pulleys?
1st Gear Member
Joined: Aug 2005
Posts: 63
From:
RE: Underdrive pulleys...
no problem, haha
i need them fast cause i want my mods done before winter hits.
which kinda sucks cause it actually snowed today for like 30mins
but its suppose to be nice this weekend.
i need them fast cause i want my mods done before winter hits.
which kinda sucks cause it actually snowed today for like 30mins
but its suppose to be nice this weekend.
The Godfather
Joined: Sep 2005
Posts: 15,480
From: Temple, Texas
RE: Underdrive pulleys...
OK dude, a 25% reduction crank pulley is about 5" across. The counterweight Alternator pulley is about 1.5". Both of these replace your stock pulleys. Try to get yourself a new belt, you don't need one, but it does help to just replace the whole thing, rpmoutlet sells a good belt. To change out your kit you will need a 55 or 60mm torch head. On your pulleys, the pulley that is angled up a litte bit with a shaft on it with a hole in the shaft is where the torch bit goes. This pulley is up and to the left of your crank. Put the torch in the hole get a socket wrench and loosen the bolt on the tension rod. Undo your belt, remember how it goes on, install your new pulleys put the belt on. Use the tension rod to once again add pressure to the belt and retighten the belt and your ready to go.
6th Gear Member
Joined: May 2005
Posts: 7,445
From:
RE: Underdrive pulleys...
ORIGINAL: jthorn9
OK dude, a 25% reduction crank pulley is about 5" across. The counterweight Alternator pulley is about 1.5". Both of these replace your stock pulleys. Try to get yourself a new belt, you don't need one, but it does help to just replace the whole thing, rpmoutlet sells a good belt. To change out your kit you will need a 55 or 60mm torch head. On your pulleys, the pulley that is angled up a litte bit with a shaft on it with a hole in the shaft is where the torch bit goes. This pulley is up and to the left of your crank. Put the torch in the hole get a socket wrench and loosen the bolt on the tension rod. Undo your belt, remember how it goes on, install your new pulleys put the belt on. Use the tension rod to once again add pressure to the belt and retighten the belt and your ready to go.
OK dude, a 25% reduction crank pulley is about 5" across. The counterweight Alternator pulley is about 1.5". Both of these replace your stock pulleys. Try to get yourself a new belt, you don't need one, but it does help to just replace the whole thing, rpmoutlet sells a good belt. To change out your kit you will need a 55 or 60mm torch head. On your pulleys, the pulley that is angled up a litte bit with a shaft on it with a hole in the shaft is where the torch bit goes. This pulley is up and to the left of your crank. Put the torch in the hole get a socket wrench and loosen the bolt on the tension rod. Undo your belt, remember how it goes on, install your new pulleys put the belt on. Use the tension rod to once again add pressure to the belt and retighten the belt and your ready to go.