# solid crank UDP? **URL:** \ **Category:** NYSpeed Automotive\ **Created:** [June 27, 2006, 9:47am UTC](https://forums.speedlife.net/t/solid-crank-udp/13856 "2006-06-27T09:47:07Z")\ **Posts on this page:** 13\ **Page:** 1
**Author:** ![somedude](https://avatars.discourse-cdn.com/v4/letter/s/ecd19e/32.png) [@somedude](https://forums.speedlife.net/u/somedude)\ **Post date:** [June 27, 2006, 9:47am UTC](https://forums.speedlife.net/t/solid-crank-udp/13856/1 "2006-06-27T09:47:07Z")
i ordered a set of under drive pullies from FPS when i ordered my tranny and they told me the pullies were on backorder and we discussed the design of them a little. ![http://fordspecialists.com/images/underdrive%20pulley.jpg](http://fordspecialists.com/images/underdrive%20pulley.jpg) from their website. well i’m unsure about running a solid crank pulley. yesterday i recieved the crank and alt pulley. any thoughts? ---
**Author:** ![MaximaSE98](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/maximase98/32/7600_2.png) [@MaximaSE98](https://forums.speedlife.net/u/MaximaSE98)\ **Post date:** [June 27, 2006, 9:48am UTC](https://forums.speedlife.net/t/solid-crank-udp/13856/2 "2006-06-27T09:48:34Z")
is it still lighter???..it does look odd…but MEH…as long as its not unbalanced ---
**Author:** ![fairgentleman\_Z](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/fairgentleman_z/32/7263_2.png) [@fairgentleman\_Z](https://forums.speedlife.net/u/fairgentleman_Z)\ **Post date:** [June 27, 2006, 9:51am UTC](https://forums.speedlife.net/t/solid-crank-udp/13856/3 "2006-06-27T09:51:27Z")
Call them and ask them why they designed it that way. I’m sure it was cheaper to build it without “spokes”. ---
**Author:** ![MaximaSE98](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/maximase98/32/7600_2.png) [@MaximaSE98](https://forums.speedlife.net/u/MaximaSE98)\ **Post date:** [June 27, 2006, 9:57am UTC](https://forums.speedlife.net/t/solid-crank-udp/13856/4 "2006-06-27T09:57:34Z")
they all look funny if u ask me ---
**Author:** ![somedude](https://avatars.discourse-cdn.com/v4/letter/s/ecd19e/32.png) [@somedude](https://forums.speedlife.net/u/somedude)\ **Post date:** [June 27, 2006, 11:06am UTC](https://forums.speedlife.net/t/solid-crank-udp/13856/5 "2006-06-27T11:06:54Z")
the crank pulley is 25% smaller and the alt is 25% bigger so there is a 25% reduction on everything and 50% on the alt. now maybe i won’ smoke 1 alt a year. the new pulley is at least 15lbs lighterthatn teh stock one. the SHO uses a harmonic dampner and is internaly ballanced. my concern is about me removing the dampner. the engine already has 216K and it has another 200K to go i don’t want to kill it becasue of a silly pulley. ---
**Author:** ![rj-92](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/rj-92/32/7310_2.png) [@rj-92](https://forums.speedlife.net/u/rj-92)\ **Post date:** [June 27, 2006, 1:55pm UTC](https://forums.speedlife.net/t/solid-crank-udp/13856/6 "2006-06-27T13:55:53Z")
I would run the stock balancer. Some of the SHO vendors have stoped selling the 4 pully kit and offer only the other 3 minus the crank pully. Its not worth it to me. Go with the stock damper and be safe. ---
**Author:** ![Carnut](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/carnut/32/7590_2.png) [@Carnut](https://forums.speedlife.net/u/Carnut)\ **Post date:** [June 27, 2006, 6:24pm UTC](https://forums.speedlife.net/t/solid-crank-udp/13856/7 "2006-06-27T18:24:51Z")
> [@fairgentleman Z](#): > > Call them and ask them why they designed it that way. > > I’m sure it was cheaper to build it without “spokes”. cost is the answer. It was cheaper for them to make that and not spend anymore money machining ---
**Author:** ![HotRodKid](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/hotrodkid/32/7609_2.png) [@HotRodKid](https://forums.speedlife.net/u/HotRodKid)\ **Post date:** [June 27, 2006, 7:10pm UTC](https://forums.speedlife.net/t/solid-crank-udp/13856/8 "2006-06-27T19:10:33Z")
the way they sit now, they were lathed / cnc lathed into that shape, adding the spoked would require a cnc mill also, adding to the cost of producing the pullies ---
**Author:** ![Bacon](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/bacon/32/7230_2.png) [@Bacon](https://forums.speedlife.net/u/Bacon)\ **Post date:** [June 27, 2006, 7:23pm UTC](https://forums.speedlife.net/t/solid-crank-udp/13856/9 "2006-06-27T19:23:41Z")
Anyone on shoforum try it yet? ---
**Author:** ![somedude](https://avatars.discourse-cdn.com/v4/letter/s/ecd19e/32.png) [@somedude](https://forums.speedlife.net/u/somedude)\ **Post date:** [June 28, 2006, 9:21am UTC](https://forums.speedlife.net/t/solid-crank-udp/13856/10 "2006-06-28T09:21:14Z")
lots of people are using them, i think i’ll give it a shot. it wil make running my “down pipe” (it doesn’t really go down at all lol) easier ---
**Author:** ![amd3dnow3](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/amd3dnow3/32/7410_2.png) [@amd3dnow3](https://forums.speedlife.net/u/amd3dnow3)\ **Post date:** [July 20, 2006, 6:48am UTC](https://forums.speedlife.net/t/solid-crank-udp/13856/11 "2006-07-20T06:48:54Z")
if its 15lbs lighter then forget it your good(performance) but if it was all the same price i would of try to get em with spokes that can only make em even lighter i would think. they just look weird thats all ---
**Author:** ![jrex](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/jrex/32/7232_2.png) [@jrex](https://forums.speedlife.net/u/jrex)\ **Post date:** [July 21, 2006, 7:56am UTC](https://forums.speedlife.net/t/solid-crank-udp/13856/12 "2006-07-21T07:56:54Z")
Run the stock one if that comes with out a harmonic damper. ---
**Author:** ![HotRodKid](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/hotrodkid/32/7609_2.png) [@HotRodKid](https://forums.speedlife.net/u/HotRodKid)\ **Post date:** [July 21, 2006, 2:11pm UTC](https://forums.speedlife.net/t/solid-crank-udp/13856/13 "2006-07-21T14:11:36Z")
^^^^ to late - pully is in he has a spare motor anyways … if shit blows up its swappy time