Picking out a camshaft ..????
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Joined: Mar 2001
Posts: 5,144
Likes: 2
From: CC, TX
Car: 1999 Yamaha Banshee
Engine: 379cc twin cyl 2-stroke stroker
Transmission: 6 spd manual
Axle/Gears: 14/41 tooth
Picking out a camshaft ..????
1992 Camaro RS
3340 race weight
355
World products sportsman II heads
weiand x-celerator single plane intake
edelbrock 750 CFM carb
bottom-end is more or less a stock rebuild - dont want to spin it past ~6000 RPMs
700R4 stock convertor - will be replaced by a proper stall speed when the cam is picked out...
3.73 rear gears
Ok, I think those are all the basics. Let me know if yall guys need any other information. I'm looking for a hydraulic flat tappet camshaft that will give me the best power curve. Because of my stockish bottem end I need power where I can use it (READ: no peak HP at 7500 RPMs type of thing)
Here are a few of the cams I am looking at:
230 Intake Duration
230 Exhaust Duration
.480" Intake Lift_______________Cam # 1
.480" Exhaust Lift
109 LSA
--------------------------------
235 Intake Duration
235 Exhaust Duration
.507" Intake Lift______________Cam # 2
.507" Exhaust Lift
108 LSA
--------------------------------
234 Intake Duration
244 Exhaust Duration
.488" Intake Lift_______________Cam # 3
.510" Exhaust Lift
114 LSA
-------------------------------
222 Intake Duration
234 Exhaust Duration
.467" Intake Lift________________Cam # 4
.494" Exhaust Lift
-------------------------------
230 Intake Duration
236 Exhaust Duration
.490" Intake Lift__________________Cam # 5
.490" Exhaust Lift
110 LSA
Cam #1 = Lunati Bracket Master II
Cam #2 = Lunati Street Master
Cam #3 = Crane "Blue Racer" (Summit Racing sells it also)
Cam #4 - Crane PowerMax
Cam #5 = Comp Cams XE274
I think that all of these cams would work pretty well and make decent power with the heads. All durations are at .050" lift and all lifts are with 1.5 ratio rockers (when I do go with roller rockers I will be using 1.6's).
Click here for the flow information on the Sportsman II heads.
Which camshaft would best meet my needs. This is a street/strip car with no AC, heater, defrost or any of that. So it's not like it needs to idle perfect and make lots of vacuum. The car is driven daily sometimes.... Needs to run on pump gas etc....
Thanks for the help in advance...
Brady
3340 race weight
355
World products sportsman II heads
weiand x-celerator single plane intake
edelbrock 750 CFM carb
bottom-end is more or less a stock rebuild - dont want to spin it past ~6000 RPMs
700R4 stock convertor - will be replaced by a proper stall speed when the cam is picked out...
3.73 rear gears
Ok, I think those are all the basics. Let me know if yall guys need any other information. I'm looking for a hydraulic flat tappet camshaft that will give me the best power curve. Because of my stockish bottem end I need power where I can use it (READ: no peak HP at 7500 RPMs type of thing)
Here are a few of the cams I am looking at:
230 Intake Duration
230 Exhaust Duration
.480" Intake Lift_______________Cam # 1
.480" Exhaust Lift
109 LSA
--------------------------------
235 Intake Duration
235 Exhaust Duration
.507" Intake Lift______________Cam # 2
.507" Exhaust Lift
108 LSA
--------------------------------
234 Intake Duration
244 Exhaust Duration
.488" Intake Lift_______________Cam # 3
.510" Exhaust Lift
114 LSA
-------------------------------
222 Intake Duration
234 Exhaust Duration
.467" Intake Lift________________Cam # 4
.494" Exhaust Lift
-------------------------------
230 Intake Duration
236 Exhaust Duration
.490" Intake Lift__________________Cam # 5
.490" Exhaust Lift
110 LSA
Cam #1 = Lunati Bracket Master II
Cam #2 = Lunati Street Master
Cam #3 = Crane "Blue Racer" (Summit Racing sells it also)
Cam #4 - Crane PowerMax
Cam #5 = Comp Cams XE274
I think that all of these cams would work pretty well and make decent power with the heads. All durations are at .050" lift and all lifts are with 1.5 ratio rockers (when I do go with roller rockers I will be using 1.6's).
Click here for the flow information on the Sportsman II heads.
Which camshaft would best meet my needs. This is a street/strip car with no AC, heater, defrost or any of that. So it's not like it needs to idle perfect and make lots of vacuum. The car is driven daily sometimes.... Needs to run on pump gas etc....
Thanks for the help in advance...
Brady
Last edited by brodyscamaro; Oct 21, 2003 at 05:48 PM.
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From: 51°N 114°W, 3500'
Car: 87 IROC L98
Engine: 588 Alcohol BBC
Transmission: Powerglide
Axle/Gears: Ford 9"/31 spline spool/4.86
Re: Picking out a camshaft ..????
Originally posted by brodyscamaro So it's not like it needs to idle perfect and make lots of vacuum. The car is driven daily sometimes....
[/B]
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Joined: Mar 2000
Posts: 43,187
Likes: 43
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Just from reading what you wanted to accomplish (before I read what cams you were looking at), I was thinking "XE274".
There is a lot more to cam operation than the specs you quoted. The advice you received on your post in the other forum has sound advice.
There is a lot more to cam operation than the specs you quoted. The advice you received on your post in the other forum has sound advice.
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