Cam Choice/Advance Question
Thread Starter
Joined: Jul 2005
Posts: 1,264
Likes: 1
From: Scarborough, Maine
Cam Choice/Advance Question I'm picking a cam for my new engine i'm getting together. I had something in mind for a cam choice, and had a custom cam recommended to me that was very close to what I was thinking of.
I'd like to know if there is any benefit to advancing , or having advance ground into the cam in a supercharged application? I'm wondering if there are any drawbacks by doing so. Most "off the shelf" blower grinds appear to be straight up with no advance ground in. Maybe some of you cam guru's can give me some advice toward my final descision.
Here is a rundown of what I'll be running.
99 Camaro SS, 6spd, 98% street driven. I'll run the 1/8th mile two or three times a summer and maybe the 1/4 once. Shooting for ~700rwhp.
Vortech T-Trim 12-14psi boost.
LS2 based 403 from Weber Racing.
Leaning toward Trickflow 225cc heads.
~9.8:1 compression ratio w/65cc heads, could go higher.
LS6 intake, ported stock TB.
ARH 1-7/8" headers, 3.5" Y-pipe.
Max RPM ~6500
I'd like to know if there is any benefit to advancing , or having advance ground into the cam in a supercharged application? I'm wondering if there are any drawbacks by doing so. Most "off the shelf" blower grinds appear to be straight up with no advance ground in. Maybe some of you cam guru's can give me some advice toward my final descision.
Here is a rundown of what I'll be running.
99 Camaro SS, 6spd, 98% street driven. I'll run the 1/8th mile two or three times a summer and maybe the 1/4 once. Shooting for ~700rwhp.
Vortech T-Trim 12-14psi boost.
LS2 based 403 from Weber Racing.
Leaning toward Trickflow 225cc heads.
~9.8:1 compression ratio w/65cc heads, could go higher.
LS6 intake, ported stock TB.
ARH 1-7/8" headers, 3.5" Y-pipe.
Max RPM ~6500
Thread Starter
Joined: Jul 2005
Posts: 1,264
Likes: 1
From: Scarborough, Maine
Any free advice would be appreciated. I know most sponsors aren't willing to give specs out on custom cams, because its not profitable if the customer doesn't buy anything from them. That's not really what I'm looking for, a ballpark regarding duration for a street car would help me out quite a bit. I'm thinking either a 228/236 or a 232/240 will get me where I want to be, just not sure. I was also thinking of going with Crane LSHS lobes to try something a little different.
As for the other part of the question regarding cam advance. Would a cam at 114+2 have the same effect (lowering the powerband) as a cam at 112, except the first cam won't bleed off as much boost?
As for the other part of the question regarding cam advance. Would a cam at 114+2 have the same effect (lowering the powerband) as a cam at 112, except the first cam won't bleed off as much boost?
On The Tree
Joined: Aug 2007
Posts: 128
Likes: 0
From: kuwait
for your application
i will go for 228/236
because LS6 instake will keep your RPM MAX to 6500 ,,, and u will see that you power will be Full at 6000 or 6100 RPM
if you planning to change your intake FROM LS6 to LS2 or FAST 90 or 92 ,, i would go for higher 230/238 or 232/240
but that will depened on your Supercharge and your pulley ,,, you dont wanna MAX your Supercharge RPM
so you need to make your calculations ,,,
but for your application at the moment ,, i will go for 228/236
good luck ,, hope this info is usefull
i will go for 228/236
because LS6 instake will keep your RPM MAX to 6500 ,,, and u will see that you power will be Full at 6000 or 6100 RPM
if you planning to change your intake FROM LS6 to LS2 or FAST 90 or 92 ,, i would go for higher 230/238 or 232/240
but that will depened on your Supercharge and your pulley ,,, you dont wanna MAX your Supercharge RPM
so you need to make your calculations ,,,
but for your application at the moment ,, i will go for 228/236
good luck ,, hope this info is usefull
