cam lift ?
- Thread starter sean
- Start date
myclone
Donating Member
Re: cam lift ?
Take gross valve lift and multiply it by your rocker ratio. Dunno if 654 is the gross lift on your cam (if it is holy ****) but you'd multiply .654 x 1.5=.981 and =1.0137 for 1.55 ratio. Thats an inch of lift so I hope you enjoy replacing worn out valve springs.
Take gross valve lift and multiply it by your rocker ratio. Dunno if 654 is the gross lift on your cam (if it is holy ****) but you'd multiply .654 x 1.5=.981 and =1.0137 for 1.55 ratio. Thats an inch of lift so I hope you enjoy replacing worn out valve springs.
THEMADTYPH00N
Active member
Re: cam lift ?
My question would be will that even fit in the block.
My question would be will that even fit in the block.
jwaller
Evil Genius/SyTy Guru
Re: cam lift ?
does the cam have a base circle lift of 654? if so then just multiply by the rocker #. but if that is advertised lift then you must divide by 1.5(thats what most companies use for advertised lift) and then multiply by the rocker ratio.
I think your talking about advertised lift bc otherwise you'd have
981 and 1013.7 and those are some insane unmbers that dont even make sence in BBC world till you go top fuel.
your last comment on 700 spring and 654 lift doesnt make much sence. you need the spring to have more lift than does the cam/rockers but you also need it to have the right spring rates. something hard on cams with the heavier springs.
does the cam have a base circle lift of 654? if so then just multiply by the rocker #. but if that is advertised lift then you must divide by 1.5(thats what most companies use for advertised lift) and then multiply by the rocker ratio.
I think your talking about advertised lift bc otherwise you'd have
981 and 1013.7 and those are some insane unmbers that dont even make sence in BBC world till you go top fuel.
your last comment on 700 spring and 654 lift doesnt make much sence. you need the spring to have more lift than does the cam/rockers but you also need it to have the right spring rates. something hard on cams with the heavier springs.
jwaller
Evil Genius/SyTy Guru
Re: cam lift ?
the cam selection should be based on flow sheets and the exact build of your truck(every single detail goes into that selection), if I had all that info I'd be more able to help you with that. pm me and I' can put together a custom cam for your build. price is 350 and could be ready in about 2 weeks. I can do flat or step nose, roller or solid, all depends on your goals and intended use.
the cam selection should be based on flow sheets and the exact build of your truck(every single detail goes into that selection), if I had all that info I'd be more able to help you with that. pm me and I' can put together a custom cam for your build. price is 350 and could be ready in about 2 weeks. I can do flat or step nose, roller or solid, all depends on your goals and intended use.
nightdiver
Active member
Re: cam lift ?
Thats the cam here http://www.syty.net/forums/showthread.php?t=34844
or better : Custom billet cam , even fire, with offset roller lifters (with tie bars) all new in box
Cams specs are 292 deg with .645 lift (with1.5 rockers) @ 112 S.A
600$ including shipping
The cam requires 8 inches pushrods. Ive done the measurement thing with the adjustable pushrod
Thats the cam here http://www.syty.net/forums/showthread.php?t=34844
or better : Custom billet cam , even fire, with offset roller lifters (with tie bars) all new in box
Cams specs are 292 deg with .645 lift (with1.5 rockers) @ 112 S.A
600$ including shipping
The cam requires 8 inches pushrods. Ive done the measurement thing with the adjustable pushrod