Cam Degreeing Question
Drifting
Joined: Jun 2008
Posts: 1,565
Likes: 111
This cam really more resembles an xe-262. Right now my ICL is sitting at 100 and that's pulling measurement down each side of the lobe .050, .100 and .200 which indicates to me that the lobe is symmetrical. My confusion came from the fact that I had assumed that the duration was going to be what I paid for. If I degree this thing IVO at 25° BTDC @ .006 I'll bet dollars to doughnuts the ICL will be right on 106.
I actually had thought that the cam was a tad small for my 9:1 400 4 speed/3.08 only to find that it's even smaller. I am tempted to change it at this point ... after all ... I'm already there ... only have to pull the radiator.
I actually had thought that the cam was a tad small for my 9:1 400 4 speed/3.08 only to find that it's even smaller. I am tempted to change it at this point ... after all ... I'm already there ... only have to pull the radiator.
Thread Starter
Racer
Joined: Jul 2006
Posts: 478
Likes: 56
From: Woodstock Georgia
I honestly don't even remember where I bought it.... and I've had it so long that I'm just going to keep it.
Alright .. I'm done. There is a lesson that I learned. Check the duration first and don't assume anything. I learned a ton throughout the process. Here's the final numbers:
@ .050 IVO: 5° BTDC
@ .050 IVC: 141° BDC
Duration: 222°
ICL: 106°
@ .006 IVO: 25°
@ .006 IVC: 117° BDC
Duration: 262°
ICL: 106
Alright .. I'm done. There is a lesson that I learned. Check the duration first and don't assume anything. I learned a ton throughout the process. Here's the final numbers:
@ .050 IVO: 5° BTDC
@ .050 IVC: 141° BDC
Duration: 222°
ICL: 106°
@ .006 IVO: 25°
@ .006 IVC: 117° BDC
Duration: 262°
ICL: 106
Race Director
Joined: Jan 2000
Posts: 13,011
Likes: 2,250
From: Corsicana, Tx
2020 C2 of the Year - Modified Winner
2020 Corvette of the Year (performance mods)
C2 of Year Winner (performance mods) 2019
2017 C2 of Year Finalist
I honestly don't even remember where I bought it.... and I've had it so long that I'm just going to keep it.
Alright .. I'm done. There is a lesson that I learned. Check the duration first and don't assume anything. I learned a ton throughout the process. Here's the final numbers:
@ .050 IVO: 5° BTDC
@ .050 IVC: 141° BDC
Duration: 222°
ICL: 106°
@ .006 IVO: 25°
@ .006 IVC: 117° BDC
Duration: 262°
ICL: 106
Alright .. I'm done. There is a lesson that I learned. Check the duration first and don't assume anything. I learned a ton throughout the process. Here's the final numbers:
@ .050 IVO: 5° BTDC
@ .050 IVC: 141° BDC
Duration: 222°
ICL: 106°
@ .006 IVO: 25°
@ .006 IVC: 117° BDC
Duration: 262°
ICL: 106
Would work on something with either fantastic intake ports or really really bad exhaust ports (comparatively to intake)
JIM
JIM
Thread Starter
Racer
Joined: Jul 2006
Posts: 478
Likes: 56
From: Woodstock Georgia
No ... I'm showing the numbers at .006 and .050 ... those are intake opening and closing numbers. Also @ .006 it's 268 with an ICL of 108. I'm done screwing with this cam .... close enough. The .050 numbers on the intake lobe looks good ...
