Ok... Are my numbers wrong? My math sux but, is it me or are the Tuner P2's closer to the Skunk pro 3's than the Pro 2's. Hmm, they're almost like Blue Print stage 3's. This is what I gathered... Oh, and this is not a Debate. just an observation.

Blox:
Intake: 270deg@ .39in Lift:.503in. Exhaust: 276deg@.39in Lift:.472in.
Peak Lift@99deg.ATDC Peak Lift@106deg.BTDC

Skunk2 Pro2
Intake: 270deg@ .050in Lift:.500in. Exhaust: 273deg@.050in. Lift:.470in.
Peak Lift@100deg.ATDC Peak Lift@104deg.BTDC

 

Compare the Ramp angles of the lobes. THEN you'll see the differences besides the basic profiles.

 

Mr. Shodan, it's an honor Sir.
Well, Unfortunately my customer only brought me the BLOX P2's with the profile sheet.
Can you enlighten me further.?

 

Pro 2's are much bigger. Skunk2 measures at .50 lift and blox is only at .39. This just accompanies Shodan's post. Dead give away they are smaller than advertised.

 

There's that math class coming to Haunt me again. I wonder what the Pro 2's measure at .39 (1mm). Whats weird is that both the Pro 2's and the Blox P2's both have their Int./Exh peak lift degrees at 99ATDC & 106BTDC. I was told that these two cams were identical.

 

advertised numbers don't mean ****

for example:
have a cam that has long duration, but a lame ramp angle reaching a monstrous lift som where midway and gradually decline from there.

then have a cam with a moderate duration, but with a aggressive ramp staying near peak lift for a long time and rapidly decline afterwards.

the first cam can have more way more duration and more lift, but the second cam can still be bigger/more agressive.

cams are like powerbands, you want the most area under curve. not just peak number dyno queens

 

You know this thread is only about comparing three different camshafts numerically right...
your going into a different topic.

 

yeah i know, but i just meant these numbers don't mean anything.

especially coming from BLOX, blox copies the skunk cam line.
as far as i knew blox p-series was a copy from skunk pro-series.

make a cam graph and post it here, then some people may recognize/confirm the PRO2 profile or not.

i'm suprised blox does give some sort of camcard tough with their cams... have you checked if the advertised duration on the camcard concurs with the cam in your hand?

i've had pro1's come up with different values then advertised (called up skunk2 and got different duration values to degree them in with), so again, advertised numbers means very little.

 

Thanks man. The numbers I posted are from the information sheet supplied with the Blox camshafts and The Skunk info is from their website. Thats all I have. So can we please just compare these 3 cams numerically please. This is not a product quality/preference discussion.

 

you're not grasping what i ment...

you want to compare advertised numbers, even tough they don't always match with the cams in your hand (especially if people who don't have a clue have written the cam card, BLOX). so MEASURE the cams in your hand (instead of believing what the fools at blox come up with) and then you can:

 

I have a set of custom ground cams from stock cores that use the same centerlines as the pro 2's...lots of cams use those centerlines actually. It makes for a good overlap which makes good power.
And to add what wolve is stating, cam producing companies like to skew the numbers some with different measurments and make their cams seem bigger than they actually are so we the buyers think we are getting a better bang for the buck. Skunk2 is typically pretty honest with their measurments. Blox on the other hand will be off...by a good amount. Knock off companies can't produce a good quality product so they start lying and cutting corners. This is why I had my own cams made to my specs. I know exactly what I have and got them for a fraction of the price.