Billet Pulleys?
06-23-08, 06:40 AM
#1
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Billet Pulleys?
Does any company make stock sized billet pulleys? I have had them on other cars and the weight difference is great. I dont feel like underdriving anything.
Thanks
Thanks
06-23-08, 09:32 AM
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Engine, Not Motor
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From what I've seen, there don't seem to be any aftermarket stock sized pulleys available for the 2nd gen besides the dual belt alternator pulley. All are underdrive.
06-23-08, 11:52 AM
#7
http://www.srmotorsports.com/sr86plly.html
this is the only aftermarket pulley set I know of, for 2nd gen rx7
but there under drive...
this is the only aftermarket pulley set I know of, for 2nd gen rx7
but there under drive...
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06-23-08, 01:04 PM
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http://www.atkinsrotary.com/store/pr...cat=456&page=1
i dont know what its made from but im sure this will add some power
i dont know what its made from but im sure this will add some power
06-23-08, 01:34 PM
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http://www.srmotorsports.com/sr86plly.html
this is the only aftermarket pulley set I know of, for 2nd gen rx7
but there under drive...
this is the only aftermarket pulley set I know of, for 2nd gen rx7
but there under drive...
06-23-08, 03:16 PM
#11
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It depends on the Engine, car and setup.
Generally the lighter pullies allow for faster reving and response. Actual power increase is not much though, usually about 1hp - 3hp per pound removed from the stock setup. but you also get faster respons which helps too.
In the case of my truck, it makes a differnce since it loses almost 15lb from the stock setup.
I don't have a clue what they are like on these cars though.
06-24-08, 04:38 PM
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speaking of pulleys - i cant for the life of me remember what they were called, but the 3 pulleys were splined and used a fairly large belt (maybe 2" wide)
something kinda like this:
something kinda like this:
06-24-08, 05:47 PM
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Well ive done it on my old B16 in my honda and it made a BIG diff and i had it for my old Rx and it did give alot of power. There was a Co that made pulleys and they did it for a 87 Rx and dinoed it and it made a 10hp diff but thats with all 3 so its not bad $40 to every 1hp not bad
06-24-08, 06:17 PM
#17
unorthodox(i guess that is how is spelled)use to make a set,i had 2 sets left at my keystone warehouse in PA(PEP BOYS WAREHOUSE)and we could not sell them cause they got recalled(that was like 3 years ago)i still have the part number if anybody is interested
06-25-08, 01:45 AM
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Well ive done it on my old B16 in my honda and it made a BIG diff and i had it for my old Rx and it did give alot of power. There was a Co that made pulleys and they did it for a 87 Rx and dinoed it and it made a 10hp diff but thats with all 3 so its not bad $40 to every 1hp not bad
Rotaries use front and rear counterweights. My t2 pulley weighs close to nothing. I would just look into underdrive pulleys, lighteneing the crank pulley would not do much
06-25-08, 04:47 AM
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what is that part number i deal with keystone almost on a daily bassis