Ed Curtis (EDC) cam specs
Originally Posted by P Mack
Jrp, I'm guessing you took the engine out from the bottom. Are you gonna do a write up on that? Cause that would be awesome. Looking forward to hearing your custom cam results too.
Thread Starter
Joined: Jul 2003
Posts: 10,755
Likes: 7
From: Valencia, Ca
Originally Posted by P Mack
Jrp, I'm guessing you took the engine out from the bottom. Are you gonna do a write up on that? Cause that would be awesome. Looking forward to hearing your custom cam results too.
, the head lights were even with my head and im 5' 6". Damn, too bad you're not into drag racing. Short and skinny: A narrow midget kart seat-extra cage room, and weighing just over 100lbs is like a measly 10hp loss to the car. Want to run down the strip a few times for me? 
Hell, that's another 100lbs off my car 
Hell, that's another 100lbs off my car Thread Starter
Joined: Jul 2003
Posts: 10,755
Likes: 7
From: Valencia, Ca
Originally Posted by NoseUp
Damn, too bad you're not into drag racing. Short and skinny: A narrow midget kart seat-extra cage room, and weighing just over 100lbs is like a measly 10hp loss to the car. Want to run down the strip a few times for me? Hell, that'd be like another 100lbs off my car
Hell, that'd be like another 100lbs off my car 
. nothing like more power and less weight to add to the fun of lapping a road course 
. 
TECH Apprentice
Joined: Oct 2003
Posts: 369
Likes: 0
From: oklahoma city
Originally Posted by Beast96Z
Who said it was a "reverse" split????? 
Remember .050" number don't mean jack........
Remember .050" number don't mean jack........ 
Originally Posted by P Mack
Jrp, I'm guessing you took the engine out from the bottom. Are you gonna do a write up on that? Cause that would be awesome. Looking forward to hearing your custom cam results too.
Perry
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Originally Posted by hink9
could someone enlighten me, or point me in the right direction on how a cam could read reverse split at .050 but not anywhere else. im confused
Chris
6600 rpm clutch dump of death Administrator
Joined: Dec 2001
Posts: 4,983
Likes: 13
From: Texas
Like this....
Perhaps a picture will help you understand things a bit more. Again, you are getting hung up on one point on the cam (lift @ .050) vs the whole lobe (which is a common mistake). So, lets look at this 256 lobe .
BBC lobe 3358 on a BBC core is 254 degrees (goes to ~256 on a LS1) lift @ .200 is 163. Gross duration is 310. Lift with a 1.7 rocker is .575
Now lets compare that lobe to the 'ultra mild' 232 XE-R. I mean come on its 20 degrees smaller. Its a baby lobe right? You tell me...
The XE-R 232 lobe is 232 @.050 153@.200 and 281 gross with .595 lift w 1.7 rocker
Lets look at the 242/242 106LSA 105 ICL (Aussie cam)
Lets compare a 242 BBC Marine lobe to a 242 XE-R lobe
BTW, the blue line is the BBC lobe.
As you can see, bigger in one part the same in others, and smaller somewhere else... Does this help?
Perhaps a picture will help you understand things a bit more. Again, you are getting hung up on one point on the cam (lift @ .050) vs the whole lobe (which is a common mistake). So, lets look at this 256 lobe .
BBC lobe 3358 on a BBC core is 254 degrees (goes to ~256 on a LS1) lift @ .200 is 163. Gross duration is 310. Lift with a 1.7 rocker is .575
Now lets compare that lobe to the 'ultra mild' 232 XE-R. I mean come on its 20 degrees smaller. Its a baby lobe right? You tell me...
The XE-R 232 lobe is 232 @.050 153@.200 and 281 gross with .595 lift w 1.7 rocker
Lets look at the 242/242 106LSA 105 ICL (Aussie cam)
Lets compare a 242 BBC Marine lobe to a 242 XE-R lobe
BTW, the blue line is the BBC lobe.
As you can see, bigger in one part the same in others, and smaller somewhere else... Does this help?
Thread Starter
Joined: Jul 2003
Posts: 10,755
Likes: 7
From: Valencia, Ca
Originally Posted by CamTom12
Hey JRP, any more progress on the motor?
oh and
@ pro fabs K-member 
Originally Posted by jrp
ya, if i can get a base tune on it sometime this week im hoping to fire it up this weekend.
Thread Starter
Joined: Jul 2003
Posts: 10,755
Likes: 7
From: Valencia, Ca
Originally Posted by 66deuce
you know almost everyone on this board is dying to find out what you dyno with that custom cam.i think Ed will get some more business when you finally post your numbers.
Originally Posted by jrp
lol no ****. its taken a long *** time but sans the shortblock i did all the work myself.
I'm just curious to see it run, it's been so long in the making
Im bored wanna take a wild guess duration at .006 is 290/292? .200 something like 157/155? pm me if Im close. doesnt do me anygood my heads are nothing like yours, just bored, playing with numbers
