Picking the right lobe center
#1
Junior Member
APPRENTICE
Thread Starter
Join Date: May 2003
Posts: 20
Picking the right lobe center
Am looking into a cam change from hyd roller to solid roller. engine is a 8.5 compression 489 bbc. Heads are 781 casting iron heads. Stone stock except larger valves. Intake is a dart with a pro systems dominator carb. Am switching to a weiand intake to try it. Current cam is a Lunati hyd roller with 242/[email protected] and 595.612 lift. 110 lobe sep. Glide with 4200 converter/brake. Best time is a 10.86 at 120. 60 ft at 1.42. Am looking at a cam with 262/270 and 636 lift but with a 114 lobe sep. Would this be a good choice or would the wide lobe sep bleed off to much cyl pressure and hurt the low end enough to change the 60ft times. Am happy with the current times but am always looking for ways to go faster
#2
Member
JUNIOR BUILDER
Join Date: Feb 2008
Location: Childers Australia
Posts: 98
I realise that this is not what you asked but I feel that an increase in static CR would give you the greatest gain.I don't think that the bigger cam would be better unless there is a traction issue.IMO
#3
Senior Member
RACING JUNKIE
Join Date: Jun 2003
Location: Hobbs, NM
Posts: 842
Re: Picking the right lobe center
Originally Posted by 348409
Am looking into a cam change from hyd roller to solid roller. engine is a 8.5 compression 489 bbc. Heads are 781 casting iron heads. Stone stock except larger valves. Intake is a dart with a pro systems dominator carb. Am switching to a weiand intake to try it. Current cam is a Lunati hyd roller with 242/[email protected] and 595.612 lift. 110 lobe sep. Glide with 4200 converter/brake. Best time is a 10.86 at 120. 60 ft at 1.42. Am looking at a cam with 262/270 and 636 lift but with a 114 lobe sep. Would this be a good choice or would the wide lobe sep bleed off to much cyl pressure and hurt the low end enough to change the 60ft times. Am happy with the current times but am always looking for ways to go faster