Curious if anyone has tried the HD Power Cam instead of the torque cam.....

And yes I have seen the MOCO dyno run comparision and understand different riding styles...........

Just like to hear from someone that actually put one of these in a BAGGER and if they can tell us about their results.......

Thanks
Eagle Out

 

I will be the first to admit I’m not an engine guy but have an amazing service manager near me. I told him I needed more power and I decided on the power cams because I’m mostly highway riding in traffic. He did what was essentially a stage 1 with screaming eagle heavy air flow power cams, TTS tuner. The turner allows you to save Harley settings, dyno, then reset with warranty issues.

The main power range is from 3000 rpms through 6000. At first it took awhile to get used to because I was used to babying it at 4000 but a good tech should set your rev limiter higher. After about 30 mph the change in torque is huge. Your acceleration snaps instead of gradually increasing. On a side not 6th gear now becomes overdrive only your max power is in 5th. Can’t remember dyno gains but I know factory stopped at 116 mph and I hit the needle at 120 pretty easy.

Not knowing engines very well I again deferred to the manager and he put me at a stage 3 +. The reason for the plus is he sent heads out to Vance and Hines to drill the heads? And now I’m at 116 torque and 108 hp. The difference he showed me is with Vance and Hines work max torque holds for almost 3000 rpm range and there’s is 1500. Here is latest dyno from stage 1 to now to give you idea.

 

“On a side not 6th gear now becomes overdrive only your max power is in 5th.”

Ooh I’d love to have 6th gear be an overdrive! And it’s only a cam change away???

 

That graph looks bogus to me.

 

I’m with you. It said that max torque was 103.46 but now where on that graph does it ever max out at 103.46. Maybe I’m missing something but it looks like someone sold somebody a bill of goods.

 

Looks a little odd to me too. The Horsepower and Torque lines always cross over at 5250 rpms, it's part of the forumula, it cannot be any other way. But that chart shows them crossing at 4750 and 4900 RPMs. That's ... weird.

 

On a dynojet dyno report it is possible to make the two scales different on one graph. This will cause the crossover points to appear to move. Without seeing both sides of the graph I cannot tell what is going on, so I will not guess at it. Since he said the heads were removed and sent out, I would assume this is a Stage III upgrade kit but it's hard to tell due to the statements being made. Someone is confused, misunderstood or has been lied too.

 

If anyone wants to challenge the authenticity of the dyno feel free. The bottom numbers are the stage 1 when I had power cams done with intake and Mastertune. The second set of higher numbers are a Stage III plus the head work by Vance and Hines. I trust the Service Manager completely who worked for Harley for 13 years and 5 for Vance and helping design cams. The reason he sends the heads out is because as you can see (or disbelieve) the goal is to maintain 100 lbs torque as long as possible. Mine lasts from 3000 rpm through 5250. If you look at a stage III by itself it’s approximately 1500 rpm range. I took the photo off the dyno screen so it is grainy but don’t need to alter a document just to offer my opinion on the cams alone.

 

Man we're not saying it's you or them at all being bogus , well I'm not it's just that I've never seen any HP/TQ crossover at anything other than 5250 revs .