is there a so called perfect cam?
Thread Starter
8th Gear
Joined: Jan 2004
Posts: 8
Likes: 0
From: washington Utah
is there a so called perfect cam?
I need some help finding a cam for this motor any help will be appriciated
my specs are
stroked 383 chevy 95 K-block hydrolic roller cam
SuperRam intake 1000CFM TB 42Lb Hr injectors
paxton SN2000 6-8 PSI intercooled
AFR 195 heads 8.5-1 comp
4l60-e trans with 2200 stall flashes at 1900-2000 on the street
373 rear gears with about 88 inch rollout or 275-50-17
wheighs 4300Lbs
was running comp part # 08-305-8 dur. @.050 220in. 230ex. lift is 510in 510 ex. and 114* lobe seperation and had more lowend than I need and just didn't hit the revs I wantit has all forged 4340 crank rods and JE pistons. this is a street truck but I don't care if it idles rough or is a little sluggish at low RPM. I spoke with somebody at comp and was told to run the 08-503-8 dur. @.050 224in. 230ex. lift is 503in 510 ex. and 112* lobe seperation does this cam look good? or is it worth the $250-300
[Modified by almostavette, 6:57 AM 1/7/2004]
my specs are
stroked 383 chevy 95 K-block hydrolic roller cam
SuperRam intake 1000CFM TB 42Lb Hr injectors
paxton SN2000 6-8 PSI intercooled
AFR 195 heads 8.5-1 comp
4l60-e trans with 2200 stall flashes at 1900-2000 on the street
373 rear gears with about 88 inch rollout or 275-50-17
wheighs 4300Lbs
was running comp part # 08-305-8 dur. @.050 220in. 230ex. lift is 510in 510 ex. and 114* lobe seperation and had more lowend than I need and just didn't hit the revs I wantit has all forged 4340 crank rods and JE pistons. this is a street truck but I don't care if it idles rough or is a little sluggish at low RPM. I spoke with somebody at comp and was told to run the 08-503-8 dur. @.050 224in. 230ex. lift is 503in 510 ex. and 112* lobe seperation does this cam look good? or is it worth the $250-300
[Modified by almostavette, 6:57 AM 1/7/2004]
Le Mans Master
Joined: Feb 2000
Posts: 9,715
Likes: 27
From: Kempner Texas
Re: is there a so called perfect cam? (almostavette)
My opinion is that there isn't a whole lot of difference between the two camshafts.
Going with a cam that has more duration and lift is going to move the power band up while softening the low end. There's usually a trade-off; but I believe you know that.
For every 8/10 degrees of duration the power band moves about 500 RPMs.
What are your exhaust system mods?
Jake
Going with a cam that has more duration and lift is going to move the power band up while softening the low end. There's usually a trade-off; but I believe you know that.
For every 8/10 degrees of duration the power band moves about 500 RPMs.
What are your exhaust system mods?
Jake
Pro
Joined: Jan 2003
Posts: 669
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From: memphis tn
Re: is there a so called perfect cam? (almostavette)
i dont believe the 2 cams are different enough to justify the cost. there are things you can do to move the powerband up in the rpm range. changing the cam timing and higher ratio rockers may be all you need.
Le Mans Master
Joined: Jan 2003
Posts: 8,596
Likes: 19
From: Portland Oregon
Re: is there a so called perfect cam? (neverendingproject)
Did he say it was a truck? If I read that correctly I would think having low end is what one would want for a truck. However if he isn't happy with the cam that is in there now. Comp did say he could run the 224/230. I run a similar cam, but its a Comp 224/236 with the high lift lobes, ground on a 112. It works great in my 396 with a blower.
But he is running only 6 to 8 pounds of boost and only 8.5:1 and my guess is that he is loosing some of that boost across his intercooler. That is due to a pressure drop across the intercooler and associated piping. Knowing that I would use the 224/236 but grind it on a 114 LSA or a 115 LSA. That would soften up the bottom end a little and take up to the mid and top end.
[Modified by tjwong, 9:41 AM 1/7/2004]
But he is running only 6 to 8 pounds of boost and only 8.5:1 and my guess is that he is loosing some of that boost across his intercooler. That is due to a pressure drop across the intercooler and associated piping. Knowing that I would use the 224/236 but grind it on a 114 LSA or a 115 LSA. That would soften up the bottom end a little and take up to the mid and top end.
[Modified by tjwong, 9:41 AM 1/7/2004]
Team Owner
Joined: Mar 2000
Posts: 83,383
Likes: 87
From: Boston, MA
Re: is there a so called perfect cam? (tjwong)
The only 'perfect cam' will be an camshaftless engine utilizing electronically actuated valves. Basically the holy grail of engines. You'll be able to program the computer for 600 ft/lb at 1000 RPM and then 600HP at 7000 RPM. :cool:
Thread Starter
8th Gear
Joined: Jan 2004
Posts: 8
Likes: 0
From: washington Utah
Re: is there a so called perfect cam? (almostavette)
the exhaust is being made and is fabricated stainless headers and dual stainless 3"
It is a Reg. Cab Shortbed 1500 but is by no means a work truck or hauler it is setup for performance.
what stalls are you guys running I am being told I can't go bigger by most places like Lunati and Crane because of my stall is 2200 and flashes around 1800 2000 the only one that recomended bigger was the comp grind, and that was as big as they recomend
[Modified by almostavette, 10:58 PM 1/7/2004]
It is a Reg. Cab Shortbed 1500 but is by no means a work truck or hauler it is setup for performance.
what stalls are you guys running I am being told I can't go bigger by most places like Lunati and Crane because of my stall is 2200 and flashes around 1800 2000 the only one that recomended bigger was the comp grind, and that was as big as they recomend
[Modified by almostavette, 10:58 PM 1/7/2004]
Pro
Joined: Jan 2003
Posts: 669
Likes: 0
From: memphis tn
Re: is there a so called perfect cam? (scorp508)
The only 'perfect cam' will be an camshaftless engine utilizing electronically actuated valves. Basically the holy grail of engines. You'll be able to program the computer for 600 ft/lb at 1000 RPM and then 600HP at 7000 RPM. :cool:
