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The Terminator
Terminator Talk
Bringing the 4lb Caged lower back from the Dead?
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<blockquote data-quote="cj428mach" data-source="post: 15506021" data-attributes="member: 142081"><p>The machine shop designed and possesses the CAD drawings and I'm sure would never give them to me as theres no gain in it for them although I've never asked maybe they feel I own them. I do know they'd never produce them without my permission and they probably wouldn't want to deal with anyone unless they were buying 100+ pulleys. Even at 100 units that's absolutely peanuts to this machine shop. This shop runs 3 shifts with 50 employees cranking out tons of products non stop. This isn't a tiny shop with a few filth covered employees like most are use to seeing.</p><p></p><p>As for any help I can be to the community as far as details I doubt I can be of much help more than this thread. I've posted part numbers of bushings, bearings, etc. The pulley is dimensioned out exactly as the original just in 8.6" diameter. A machinist would need a stock or 4lb pulley in their possession to completely dimension it out. </p><p></p><p>I also personally feel that a 4lb caged lower is only good for approximately 700rwhp and 2.3l blowers, anything over that is pushing it. These are not a 1 size fit all unit. In order to push it further than that you need to upgrade the driveshaft and increase the amount of bushings like WS6JJP did on his personal lower. I can't say I'm a believer in harder bushings as you need give in the lower and harder bushings reduce/eliminate that, only time will tell if its a good solution.</p><p></p><p>I might hit up the original machine shop and see what my options are.</p></blockquote><p></p>
[QUOTE="cj428mach, post: 15506021, member: 142081"] The machine shop designed and possesses the CAD drawings and I'm sure would never give them to me as theres no gain in it for them although I've never asked maybe they feel I own them. I do know they'd never produce them without my permission and they probably wouldn't want to deal with anyone unless they were buying 100+ pulleys. Even at 100 units that's absolutely peanuts to this machine shop. This shop runs 3 shifts with 50 employees cranking out tons of products non stop. This isn't a tiny shop with a few filth covered employees like most are use to seeing. As for any help I can be to the community as far as details I doubt I can be of much help more than this thread. I've posted part numbers of bushings, bearings, etc. The pulley is dimensioned out exactly as the original just in 8.6" diameter. A machinist would need a stock or 4lb pulley in their possession to completely dimension it out. I also personally feel that a 4lb caged lower is only good for approximately 700rwhp and 2.3l blowers, anything over that is pushing it. These are not a 1 size fit all unit. In order to push it further than that you need to upgrade the driveshaft and increase the amount of bushings like WS6JJP did on his personal lower. I can't say I'm a believer in harder bushings as you need give in the lower and harder bushings reduce/eliminate that, only time will tell if its a good solution. I might hit up the original machine shop and see what my options are. [/QUOTE]
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Bringing the 4lb Caged lower back from the Dead?
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