Cam question to avoid reversion
10-17-2018 | 08:11 PM
#1
Thread Starter
Registered
Joined: Jun 2018
Posts: 420
Likes: 35
From: Michigan
Cam question to avoid reversion
what am I looking for as far as cam specs to avoid reversion? Small block Chevy if it matters. I know you want minimal overlap but that is not listed on cam specs that I can tell. Just trying to avoid problems.
10-18-2018 | 12:59 AM
#2
Charter Member # 55
Joined: Oct 2000
Posts: 20,272
Likes: 2,513
From: Omaha/LOTO
10-18-2018 | 04:40 AM
#3
Thread Starter
Registered
Joined: Jun 2018
Posts: 420
Likes: 35
From: Michigan
Overlap calculator
Camshaft Overlap Calculator - Wallace Racing
Camshaft Overlap Calculator - Wallace Racing
thanks. What’s a good number with wet thru hull exhaust?
10-18-2018 | 09:25 AM
#4
Registered
Joined: Jan 2009
Posts: 688
Likes: 177
From: Finland
I allso asked this question while a go. Answear was comp xm262 is max with stock manifods. I used comp xe262 automotive version with 110 lobe. Made 380hp 5200rpm, 442lb ft 3700rpm at flywheel, with pocket ported 997 cast Iron heads. Cr 9.5.
10-18-2018 | 09:48 AM
#5
Banned
Joined: Aug 2017
Posts: 54
Likes: 0
From: Osaka, Japan
10-18-2018 | 10:34 AM
#6
Registered
Joined: Jun 2011
Posts: 1,211
Likes: 145
With a Crower Hyd roller I'm at 221/230 @ .050" , 114 LSA with no reversion on stock exhaust manifolds/elbows with 4" thru hull exhaust. This is near the limit. Beyond that I'd likely need to dump the water further aft.
