I went on the skunk2 site and saw that the specs for the D16z6 stage 1 cam is up. I haven't seen any posts about this yet...so I figured I'd post them for all of you SOHC people.

D16Z 1.6L SOHC VTEC Stage I

Lift/Duration
IN. 0.470, 240
EX. 0.445, 240

I also have a question...

The ZEX 59300 cam has less lift than the skunk2 stage 1 cam...

ZEX/Comp 59300
Lift/Duration
IN. 0.455, 260
EX. 0.430, 268

So in theory...can I use the 59300 cam without an upgraded valvetrain? Or am I reading the specs wrong? Some helpful insite would be very useful for me and probobly most other people.

 

i'm not sure about your question, but i'd upgrade my valvetrain with any stage cam upgrade.

 

I'd like to know what the stock cam specs are (for comparison to the skunk and zex) so I can justify spending more than what the motor is worth on a cam.

 

anybody have a dyno sheet of skunk2 cams on a d16z6?
tell your set up if you have anything else.

 

These specs don't mean much without showing the Intake/Exhaust spacing ratios.

Whats the valve overlap on either of the cams?

Gotcha thinkin' don't I?

 

Looks like the Skunk2 would be better for a turbo setup a bit more lift and less duration then the ZEX

 

http://www.crower.com/cat/impo...shtml
that shows stock specs and the ones for crowers cams for comparison.
wow that lift is badass- maybe thats why mine didnt fit in my head

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jL iLLuZiOnz 9 &raquo;</TD></TR><TR><TD CLASS="quote">anybody have a dyno sheet of skunk2 cams on a d16z6?
tell your set up if you have anything else.</TD></TR></TABLE>
axhandler posted up a dyno of the Skunk2 S1 cam installed on his D16Y8. That will give you an idea. It was originally in my car along with a Skunk2 cam gear, but I took both out and sold them to him. I can't remember if he posted up a baseline dyno along with his new one, though.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JDMCRX &raquo;</TD></TR><TR><TD CLASS="quote">Looks like the Skunk2 would be better for a turbo setup a bit more lift and less duration then the ZEX</TD></TR></TABLE>
I was thinking the same thing.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Spade &raquo;</TD></TR><TR><TD CLASS="quote">These specs don't mean much without showing the Intake/Exhaust spacing ratios.

Whats the valve overlap on either of the cams?

Gotcha thinkin' don't I?</TD></TR></TABLE>

Well on the skunk2 site...thats all they provide. As for ZEX...

Advertised Duration
In. 260
Ex. 268

Duration @ .050
In. 220
Ex. 216

Max Valve Lift
In. 455
Ex. 430

Centerline
In. 107
Ex. 111

Lash
In. .007
Ex. .009

I tried emailing skunk2 about the cam specs...but they never replied. Spade...if you don't mind...can you kinda explain what some of these specs mean...cause I don't have a clue except for the basic Lift and Duration.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jL iLLuZiOnz 9 &raquo;</TD></TR><TR><TD CLASS="quote">i'm not sure about your question, but i'd upgrade my valvetrain with any stage cam upgrade.</TD></TR></TABLE>

Basically what I'm getting at is...if the skunk2 stage 1 cam has a more agressive cam profile than the ZEX 59300...then in theory...couldn't you just use the 59300 without gettin new springs since it's less agressive than another cam that says you don't need them. Don't get me wrong...it is a good thing to upgrade springs with a new cam...but I'm lookin to see if I can get a cam on a cheap budget.

Also...can you just used upgraded valve springs...but still use your stock retainers with an upgraded cam? I know some B-series people just use stock or ITR retainers with skunk2 valve springs when they go with upgraded cams.

 

Also to note...I just noticed that no where on the SOHC cams(Z6 and Y8) does it require valve springs anymore for the 59300 or 105300. So I guess you can run the cam safely without springs or retainers.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by H23 EG Hybrid &raquo;</TD></TR><TR><TD CLASS="quote">Also to note...I just noticed that no where on the SOHC cams(Z6 and Y8) does it require valve springs anymore for the 59300 or 105300. So I guess you can run the cam safely without springs or retainers.</TD></TR></TABLE>

Someone should invite Rocket into this thread. He tested the z6 valve springs, and he told me that they are very strong and can handle a lot of lift, considering how light the sohc valve are.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 743 &raquo;</TD></TR><TR><TD CLASS="quote">

Someone should invite Rocket into this thread. He tested the z6 valve springs, and he told me that they are very strong and can handle a lot of lift, considering how light the sohc valve are.</TD></TR></TABLE>

It used to say you needed the springs for the 59300...but not anymore. I heard that also about the Z6 springs being really robust even at high RPM's.

 

I want to know too as i am going to do a little headwork on my Y8 in the coming months

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JDMCRX &raquo;</TD></TR><TR><TD CLASS="quote">Looks like the Skunk2 would be better for a turbo setup a bit more lift and less duration then the ZEX</TD></TR></TABLE>

Can't really say that since the overlap on the Skunk2 is still unknown.

 

i would get upgraded valve springs for the 59300 as it has a very aggressive ramp rate, which is the reason a lot of people say this cam is so noisy.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Daniel &raquo;</TD></TR><TR><TD CLASS="quote">
axhandler posted up a dyno of the Skunk2 S1 cam installed on his D16Y8. That will give you an idea. It was originally in my car along with a Skunk2 cam gear, but I took both out and sold them to him. I can't remember if he posted up a baseline dyno along with his new one, though.</TD></TR></TABLE>

Here is the link to my previous thread... https://honda-tech.com/zerothread?id=633149

I don't have a baseline...sorry. The only thing that dyno sheet really tells people is that tuning is good.

 

http://www.hadamotorsport.com/...x.htm

I found this link to be helpful. Tells a lot about different chips with the 59300 cam and also how the Y8 manifold affects performance with the cam. Lots of Dyno charts.

 

ok let me get this right... i have a z6 head i ugrade my cam gear and cam to skunk 1 and get new valve springs i dont need new retainers?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Vtecin94dx &raquo;</TD></TR><TR><TD CLASS="quote">ok let me get this right... i have a z6 head i ugrade my cam gear and cam to skunk 1 and get new valve springs i dont need new retainers?</TD></TR></TABLE>
i was planning on running skunk2 st1 with skunk valvesprings with stock retainers- ti retainers wear much faster and therefore must be checked/replaced much more often than stock. since i couldnt imagine anyone going much above 8000 rpm with skunk or zex cam(especially with stock bottom end), i would say the stock retainers will be sufficient

 

yeah i see what u are saying about reving higher then 8000 with a stock bottom end. Do your have any idea how much if would run me to get a cam cam gear and springs?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by blackeg &raquo;</TD></TR><TR><TD CLASS="quote">
i was planning on running skunk2 st1 with skunk valvesprings with stock retainers- ti retainers wear much faster and therefore must be checked/replaced much more often than stock. since i couldnt imagine anyone going much above 8000 rpm with skunk or zex cam(especially with stock bottom end), i would say the stock retainers will be sufficient</TD></TR></TABLE>

I heard that too about the titanium retainers wearing a lot faster. If I remember right...you have to replace them every 10k miles. About the only difference between the stock retainers and the skunk are that the aftermarket ones are made of titanium therefore lighter.

Just curious...has anyone dynoed a 59300 before and after an Edelbrock manifold? From that link I posted above...you lose 2-3whp and tq with the Y8...so I wanted to know if the same thing happens with the Edelbrock...or even the skunk if anyone has that.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Spade &raquo;</TD></TR><TR><TD CLASS="quote">These specs don't mean much without showing the Intake/Exhaust spacing ratios.

Whats the valve overlap on either of the cams?

Gotcha thinkin' don't I?</TD></TR></TABLE>
lobe seperation is very important guys...

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by H23 EG Hybrid &raquo;</TD></TR><TR><TD CLASS="quote">
I heard that too about the titanium retainers wearing a lot faster. If I remember right...you have to replace them every 10k miles. About the only difference between the stock retainers and the skunk are that the aftermarket ones are made of titanium therefore lighter.
</TD></TR></TABLE>
This is not common these days. Crower retainers have been in my motor for several thousand miles almost 35k, and have shown no wear upon inspection about 10k miles ago. This is due to their use of a super wear resistant Ti compound, like most manufacturers these days.

 

good info builthatch! i guess need to get up with the times

 

what kind of gains have people seen with a stage 1 skunk2 cam?