I wanted to see what folks are accepting as "safe" V2V clearances for an h22 head with Skunk2 Pro 3's...

 

.030 no matter what head /cams

 

What are your cam gear settings looking like when you have a .030 clearance?

This is what I got from my head.. p.s. these are stock size valves:

 

i have .031 to .033 @ -1in/+4ex depending on which head i measure

cams degreed in @ -1in/+3ex and had .028

something doesnt look right w/ your gragh....

 

When you say -1in/+3ex, are you talking about degrees or notches on your cam gears? Each notch is 2 degrees and that is what is reflected in my chart.

p.s. if you meant -1mark IN/ +3marks EX then you have 8 degrees of seperation, am I correct?


Would you mind sharing your chart? I'm trying to figure out wth I'm doing wrong... Am I measuring something wrong?

 

intake is retarded 1 degree

exhaust is advanced 4 degrees

i dont have anymore pics of my gragh but i had intake on the top, exhaust on the left side and my safe zone was bottom left of the gragh

my gragh is in 1 degree increments

you should see a clear "safe zone" become defined as you go along

 

pro series gears huh? well I'll c what I can do about trying some different gears cause what I'm using isnt working... =\

 

the gears wont matter

are you sure you have everything setup properly?

how are you checking V2V

explain how you have everything setup

 

This is probably true but in my situation they did. I put on a set of Skunk2 Tuner series cam gears and my chart looks a lot more legitimate. This is what I got...

p.s. I am going to order a set of Pro series cam gears on Monday because I can get more accurate settings with them.
Pro series= 1mark = 1 degree vs Tuners 1 mark= 2 degrees.


Here is my new graph...



The method I was using... (side note: This pic was snapped after I finished, thats why the head isn't off the edge of the table...)





Basically, My V2V chart is saying I need about 6 degrees separation between the cams to have .030" or more clearance from valve to valve.

Tell me what you think...

-Joone

 

That doesnt seem right man, just like randy said

 

dont worry about the marks on the camgears

any camgears will work fine and do the same job when it comes to degreeing the cams

the most important thing is to make sure those visegrips are on the underside of your camgears when measuring

and rotate the cams by turning the exhaust cam and allowing it to pull the intake cam along w/ it

rotate the assembly enough times to get the visegrips on the bottom side before taking a measurement otherwise everything will be off

just make sure the t belt is tight around the front of the exhaust gear, along the top of the exhaust gear, inbetween the two gears, along the top and around back of the intake gear.

anywhere else is fine to have the seam w/ visegrips

 

Care to elaborate, I don't understand. The updated chart should look right. I compared it to a few other charts and it looks about right...

I didn't take a pic of the skunk gears on while the head was setup to check for clearance. This is exactly how everything looked when I did the V2V check today, except the gears were skunk2 tuners instead of these Bisimoto gears...

 

the new chart looks fine, i just wouldnt worry about going out and getting new camgears because it doesnt matter if those marks are correct or not.

have you degreed the cams yet?

 

The cams have been degreed but looking back at it, the settings don't seem right. Could the degree setting be in an area where there is V2V contact? If you check the graph, the valves hit each other...

With the Bisi cam gears, the Degree'd cam gear setting was:
In +4
Ex +2

Doesn't sound right, right?

 

That is not correct.

Once degreed, exhaust cam timing should be in the +3 to +5 range, and intake should be in the -1 to +1 range.

 

you didnt degree the cams properly

try again and figure out what your doing wrong during the degreeing process

 

I'm blaming it on the cam gears =X haha.

Anyway, I will get back to you on what happens when I slap the head back on the block. My next question is going to be, what method do you use to check P2V clearance?

-Joone

 

helper springs and dial indicators

 

pro gears are every 1 = 2 degree i think u have it backwards cuz tuner 1=1 ...btw i have pro gears for sale ....also changing gears wouldnt matter if u have pros u just have to set inbetween the lines when needing only 1 deg change.

exaple i had mine at like 1.5 between 1 & 2 line duh to = 3 degree if that makes scense lol

 

man, that is pretty disappointing. I was looking at the pic on the skunk2 page and it was of a d16z6 cam gear. It had a mark for every degree. I guess you can do that on a single cam.

I looked at the spec sheet for the pro series gears and you are right, 1 mark= 2 degrees. argh!! I guess I am going to have to go between notches if I want to adjust by 1 degree increments. =\

p.s. tuner series is the same as pro series, i checked the spec sheet for the gears on skunk2.com and I have the gears on my head as well. It says so on the gears... =\

Thanks for the input though, I appreciate it much!

 

huh learn something new everyday i always thought tuners were 1=1 ...good thing i never used them hahaa

 

This has to be isolated to the H22 Pro gears, because my B-series Pro gears are 1 mark= 1 degree.

 

yes the pro gears are 1 mark= 1 degree

should show 10 degrees/10 marks of adjustment on each side of 0

 

my Bs were 1=2 also.