difference of these two cams?? blower 383
#1
difference of these two cams?? blower 383
ok so im trying to find a cam for my 383 rebuild supercharged lt1..
i researched and concluded that a blower cam overlap ideal range is 0 to +8. the higher the overlap the choppier the idle right?
i like a lope sound on a car but also want perfornance so i figured id go with a +6 overlap cam to stay within the range.
as far as power and torque range differences or any other differences what are they on these two cams?
224/236 112lsa
228/240 114lsa
Both have a +6 overlap
i researched and concluded that a blower cam overlap ideal range is 0 to +8. the higher the overlap the choppier the idle right?
i like a lope sound on a car but also want perfornance so i figured id go with a +6 overlap cam to stay within the range.
as far as power and torque range differences or any other differences what are they on these two cams?
224/236 112lsa
228/240 114lsa
Both have a +6 overlap
#3
Re: difference of these two cams?? blower 383
You can't really just pick a cam based on overlap. Not only is valve timing critical when you're trying to make power but you also have to account for the size and weight of the valve train being used and that doesn't even begin to cover all the variables you need to know. IMO, call Martin at Tick Performance and let him spec something for you.
#4
Re: difference of these two cams?? blower 383
I too have a S_charged 97SS MM6. F1A. Lots of mods. Tried many cams. Now on the forth.
Cam Motion 231/240* @ 0.05/ .530/ .580 lift 114 lsa. About 8* overlap. Has a nice lope @ 1100 rpm idle. Very nice cam.
B.
Cam Motion 231/240* @ 0.05/ .530/ .580 lift 114 lsa. About 8* overlap. Has a nice lope @ 1100 rpm idle. Very nice cam.
B.
#5
Re: difference of these two cams?? blower 383
How is that working out for you and what kind of exhaust do you have? reason I am asking is I run a smallish cam and think I have a sort of restrictive exhaust, but not sure it is worth changing.
#6
Re: difference of these two cams?? blower 383
Exhaust... Always a problem with street app. I run Pacesetter Ltubes with my own Y pipe (3") to a modded Mufflex 3 1/2" back thru a Spin tech. I have a 3 1/2" dump before the axle. It is a bit of noise, so, I am experimenting with CCI inserts. Two @ the collectors (a 2 disc) and one before the spin_tech (a 3 disc 3 1/2"). I have modded the exhaust alot.
There can be a lot of back pressure with the dump valve closed. I use 3/8-16unc threaded rod thru 1/2" tube welded @ the joints. Clamps don't do it and I have blown pipes loose.
I have destroyed the Qtp valve. Re built and modded by me. Bent the disc three times. Did my own now. It has survived the blast. Seals OK, but a big pressure wave from the blower.
The long tubes work very nice. A lot of work to rework the electrical with long tubes. F1A has alot more air flow than the previous D1. Both 9" scroll. I did my own F1A mount and belt tensioner. Took a while, but works good now.
New trans this Winter. Was the weak point.
Hve fun... B.
There can be a lot of back pressure with the dump valve closed. I use 3/8-16unc threaded rod thru 1/2" tube welded @ the joints. Clamps don't do it and I have blown pipes loose.
I have destroyed the Qtp valve. Re built and modded by me. Bent the disc three times. Did my own now. It has survived the blast. Seals OK, but a big pressure wave from the blower.
The long tubes work very nice. A lot of work to rework the electrical with long tubes. F1A has alot more air flow than the previous D1. Both 9" scroll. I did my own F1A mount and belt tensioner. Took a while, but works good now.
New trans this Winter. Was the weak point.
Hve fun... B.
#7
Re: difference of these two cams?? blower 383
Exhaust... Always a problem with street app. I run Pacesetter Ltubes with my own Y pipe (3") to a modded Mufflex 3 1/2" back thru a Spin tech. I have a 3 1/2" dump before the axle. It is a bit of noise, so, I am experimenting with CCI inserts. Two @ the collectors (a 2 disc) and one before the spin_tech (a 3 disc 3 1/2"). I have modded the exhaust alot.
There can be a lot of back pressure with the dump valve closed. I use 3/8-16unc threaded rod thru 1/2" tube welded @ the joints. Clamps don't do it and I have blown pipes loose.
I have destroyed the Qtp valve. Re built and modded by me. Bent the disc three times. Did my own now. It has survived the blast. Seals OK, but a big pressure wave from the blower.
The long tubes work very nice. A lot of work to rework the electrical with long tubes. F1A has alot more air flow than the previous D1. Both 9" scroll. I did my own F1A mount and belt tensioner. Took a while, but works good now.
New trans this Winter. Was the weak point.
Hve fun... B.
There can be a lot of back pressure with the dump valve closed. I use 3/8-16unc threaded rod thru 1/2" tube welded @ the joints. Clamps don't do it and I have blown pipes loose.
I have destroyed the Qtp valve. Re built and modded by me. Bent the disc three times. Did my own now. It has survived the blast. Seals OK, but a big pressure wave from the blower.
The long tubes work very nice. A lot of work to rework the electrical with long tubes. F1A has alot more air flow than the previous D1. Both 9" scroll. I did my own F1A mount and belt tensioner. Took a while, but works good now.
New trans this Winter. Was the weak point.
Hve fun... B.
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