Department Of Boost
Alpha Geek
- Joined
- May 26, 2010
- Posts
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Talking about a 550+rwhp blown 4.6-5.0 3v setup here and “performance” cams. Hot Rod cams and the like aren’t the target of this thread.
So just recently I got some surprising data on the Comp 127350 cams I am currently running. They are not nearly as effective as you think they would be or should be. Yes, they make more power than the stock cams after 5,600rpm. But not much and they are down a TON of power through the midrange. I’ve seen the same trend with the same cams on three different cars.
After talking to a lot of people that should be in the know I haven’t gotten much data on camming 3v’s. It doesn’t seem like anyone (or at least anyone I have talked to) has a real handle on the 3v’s. And in Comps case it sounds a lot like they just threw some numbers at the wall and called it done.
I don’t see how you can’t get a cam as mild as the 127300/127350 to work almost as well as the stock cams through the mid range and then take off up top. I think something is missing from the puzzle and I am hoping with enough data that collectively maybe we can get some better conclusions. In the old days someone would have done a cam shootout in a magazine a long time ago. But tech articles are few and far between these days and apparently it is up to the guys on the ground to prove/dis-prove manufacturer claims.
So if you are running 550+rwhp with a blower on your 3v would you be so kind as to post up your dyno graph and provide a list of your setup (kind of blower, cams used, locked or not locked, boost, etc)? I am hoping that if I can collect enough information maybe I can draw some conclusions on what works when and why.
If you have copies of your dyno runs in “table” form (not the graph) that would save me a ton of time.
I’m looking for dyno info that has torque, HP, RPM’s. Once/if I figure something out I will post all the data I have collected and any conclusions I can come up with.
Thanks!
So just recently I got some surprising data on the Comp 127350 cams I am currently running. They are not nearly as effective as you think they would be or should be. Yes, they make more power than the stock cams after 5,600rpm. But not much and they are down a TON of power through the midrange. I’ve seen the same trend with the same cams on three different cars.
After talking to a lot of people that should be in the know I haven’t gotten much data on camming 3v’s. It doesn’t seem like anyone (or at least anyone I have talked to) has a real handle on the 3v’s. And in Comps case it sounds a lot like they just threw some numbers at the wall and called it done.
I don’t see how you can’t get a cam as mild as the 127300/127350 to work almost as well as the stock cams through the mid range and then take off up top. I think something is missing from the puzzle and I am hoping with enough data that collectively maybe we can get some better conclusions. In the old days someone would have done a cam shootout in a magazine a long time ago. But tech articles are few and far between these days and apparently it is up to the guys on the ground to prove/dis-prove manufacturer claims.
So if you are running 550+rwhp with a blower on your 3v would you be so kind as to post up your dyno graph and provide a list of your setup (kind of blower, cams used, locked or not locked, boost, etc)? I am hoping that if I can collect enough information maybe I can draw some conclusions on what works when and why.
If you have copies of your dyno runs in “table” form (not the graph) that would save me a ton of time.
I’m looking for dyno info that has torque, HP, RPM’s. Once/if I figure something out I will post all the data I have collected and any conclusions I can come up with.
Thanks!
