choppy or not
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Joined: Mar 2004
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From: BFE
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Sounds like it would be a healthy cam for a 5.7L. The duration specs on the exhaust lobe, along with the overlap is what primarily gives you the lope/choppy idle characteristics. Post a video and or a sound bit of it when you are done with the install and get her tuned...
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Brett Foote
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From: Denver International Airport, Colorado USA
Nasty 2000:
Wow, choppy? Man with 17* of overlap, it will be past choppy..it will sound more like a Nascar starting up...
Kidding a little, but I am running 10* degrees of overlap, and it will get your attention. I did not pick the cam for sound, but it is nice.
I am curious what kind of exhaust system you have. With that cam split 227/239, seems like you are going to have to really 'breathe' that cam at mid and high rpm's to really take advantage of the additional overlap and available torque.
I always admire one who breaks the mold, so one more question. On the 108 LSA, any advance or are you installing it straight up?
I would really be curious to see that HP/TQ curve.
I have done a lot of tuning to handle the inevitable cam reversion that occurs at lower RPM's with higher overlaps cams. Believe me, below 1600-2000 rpm's my VE % are in the low 30's. I spent some time getting rid of the 'bucking' that can occur.
Again, let us know how it works out.
Good luck..
..WeathermanShawn..
Wow, choppy? Man with 17* of overlap, it will be past choppy..it will sound more like a Nascar starting up...
Kidding a little, but I am running 10* degrees of overlap, and it will get your attention. I did not pick the cam for sound, but it is nice.
I am curious what kind of exhaust system you have. With that cam split 227/239, seems like you are going to have to really 'breathe' that cam at mid and high rpm's to really take advantage of the additional overlap and available torque.
I always admire one who breaks the mold, so one more question. On the 108 LSA, any advance or are you installing it straight up?
I would really be curious to see that HP/TQ curve.
I have done a lot of tuning to handle the inevitable cam reversion that occurs at lower RPM's with higher overlaps cams. Believe me, below 1600-2000 rpm's my VE % are in the low 30's. I spent some time getting rid of the 'bucking' that can occur.
Again, let us know how it works out.
Good luck..
..WeathermanShawn..
Thread Starter
12 Second Club
Joined: Aug 2008
Posts: 91
Likes: 0
From: Akron, Ohio
Nasty 2000:
Wow, choppy? Man with 17* of overlap, it will be past choppy..it will sound more like a Nascar starting up...
Kidding a little, but I am running 10* degrees of overlap, and it will get your attention. I did not pick the cam for sound, but it is nice.
I am curious what kind of exhaust system you have. With that cam split 227/239, seems like you are going to have to really 'breathe' that cam at mid and high rpm's to really take advantage of the additional overlap and available torque.
I always admire one who breaks the mold, so one more question. On the 108 LSA, any advance or are you installing it straight up?
I would really be curious to see that HP/TQ curve.
I have done a lot of tuning to handle the inevitable cam reversion that occurs at lower RPM's with higher overlaps cams. Believe me, below 1600-2000 rpm's my VE % are in the low 30's. I spent some time getting rid of the 'bucking' that can occur.
Again, let us know how it works out.
Good luck..
..WeathermanShawn..
Wow, choppy? Man with 17* of overlap, it will be past choppy..it will sound more like a Nascar starting up...
Kidding a little, but I am running 10* degrees of overlap, and it will get your attention. I did not pick the cam for sound, but it is nice.
I am curious what kind of exhaust system you have. With that cam split 227/239, seems like you are going to have to really 'breathe' that cam at mid and high rpm's to really take advantage of the additional overlap and available torque.
I always admire one who breaks the mold, so one more question. On the 108 LSA, any advance or are you installing it straight up?
I would really be curious to see that HP/TQ curve.
I have done a lot of tuning to handle the inevitable cam reversion that occurs at lower RPM's with higher overlaps cams. Believe me, below 1600-2000 rpm's my VE % are in the low 30's. I spent some time getting rid of the 'bucking' that can occur.
Again, let us know how it works out.
Good luck..
..WeathermanShawn..
TECH Enthusiast
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From: Denver International Airport, Colorado USA
Should be sweet!
Wish I could get away with that setup out here, but Colorado is tightening up on their emissions and noise abatement laws. I am lucky to currently live just outside of the testing zone.
Have fun. Sounds like you have done your homework.
Enjoy, and let us know your final results.
..WeathermanShawn..
Wish I could get away with that setup out here, but Colorado is tightening up on their emissions and noise abatement laws. I am lucky to currently live just outside of the testing zone.
Have fun. Sounds like you have done your homework.
Enjoy, and let us know your final results.
..WeathermanShawn..
Thread Starter
12 Second Club
Joined: Aug 2008
Posts: 91
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From: Akron, Ohio
here it is Last edited by nasty2000z28; Jun 16, 2009 at 10:19 AM.
