Bought a set of Pro 1's brand new still in the box, no cam card included

Looking for lift / duration at advertised.

iv searched myself and have gotten mixed results, skunks site lists the duration of both intake and exhaust cams for the pro 1's @ 264*

Though i have contacted someone i know with a set of pro 1's and his cam card read 264* intake duration / 245* exhaust duration.

SO... which is true ? iv got my degree wheel and indicators all set up on this motor and im getting 274* duration on the exhaust side!!!!

which, doesn't match the site or the cam card! im stumped.

if anyone has intake valve open/closing degree specs along with exhaust valve open/closing specs those would be great to have also

my head has been cut & block decked, so i know im not at true zero.
im going to need to adjust for them to be opening/closing @ proper crankshaft rotation, but i don't have these specs.

Anyone with information i would greatly appreciate a reply.

 

Are the cam card spec's in 1mm or .050" and which were you using. I would be willing to bet your measuring the advertised durration at 0 lift and not at 1mm or .050" lift.

 

measuring everything at 1mm / .039" lift.


Here are some specs i found from another user
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by itgsr98 &raquo;</TD></TR><TR><TD CLASS="quote">Here are all the specs for pro1's

Intake

264deg./12.6@1mm/0.000" lash
.................................................. ....
Exhaust

264deg./11.9@1mm/0.000" lash
.................................................. ....
Valve Clearance(cold)

Intak:0.0007"
Exhaust:0.0008"
.................................................. ....
Intake:

Opening: 24deg. BTDC
Peak lift: 98deg. ATDC
Closing: 50deg. ABDC
.................................................. ....
Exhaust:

Opening: 56deg. BBDC
Peak lift: 105deg. BTDC
Closing: 17deg. ATDC </TD></TR></TABLE>

I attempted to do this 3 times last night, each time ending with the same results.
My lift is dead on at 11.9mm, but my duration is giving me a reading of 274*

????

its like i have the lift of a pro1 and the duration of a pro2 .. wtf.

this is all only regarding my exhaust cam. i havnt even moved to the intake cam yet.

 

Maybe its your eyes your seeing 274 but its really 264. IDK man of by 10 degrees that means your head and block would have to be mill a bit.

 

haha its not my eyes. I took a breath of fresh air, re zero'd everything and went from there.. duration is right at 264.

for anyone degreeing a set of pro1's, the numbers i qouted above, the closing degree's are wrong. just figured id point that out so people arent chasing after answers like i was.
Set your opening angles at 56 and 24 and you should be good.

for me to get to those numbers i had to advance intake and exhaust cam 2 marks on the gears.


Modified by on_motor_only at 6:31 AM 5/22/2006

 

so you ended up with +4,+4 on the cam gears? what's you setup btw?

 

if each mark = 2* then yes that is correct.

84.5 x 89 block
Arias 11.6.1
portflow p30 head
IB spec ITR manifold
Smsp b20 tri-y header

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by on_motor_only &raquo;</TD></TR><TR><TD CLASS="quote">for me to get to those numbers I had to advance intake and exhaust cam 2 marks on the gears.


</TD></TR></TABLE>
Interesting. I found the Pro1's wanted to be at +5.5, +4 when tuning on the dyno.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by b19coupe &raquo;</TD></TR><TR><TD CLASS="quote">
Interesting. I found the Pro1's wanted to be at +5.5, +4 when tuning on the dyno.</TD></TR></TABLE>

+3 +4 for me on thre dyno

 

Can some plz tell me are these genuine!
Told there skunk 2 Pro 1s