# need help with skunk2 honda cams

**URL:** https://forums.speedlife.net/t/need-help-with-skunk2-honda-cams/204040
**Category:** PittSpeed Automotive
**Created:** [October 28, 2009, 9:21pm UTC](https://forums.speedlife.net/t/need-help-with-skunk2-honda-cams/204040 "2009-10-28T21:21:10Z")
**Posts on this page:** 20
**Page:** 1

<div class="post-metadata">

### Author: ![cmross13](https://avatars.discourse-cdn.com/v4/letter/c/a6a055/32.png) [@cmross13](https://forums.speedlife.net/u/cmross13)
#### Post date: [October 28, 2009, 9:21pm UTC](https://forums.speedlife.net/t/need-help-with-skunk2-honda-cams/204040/1 "2009-10-28T21:21:10Z")

</div>

so i got a couple of nasty warnings from Skunk2 guys about degreeing in my cams. they said +4/+4 is the quick setup, which is pretty much irrelevent since since the head has been milled 0.020". im looking for someone with history or a degree wheel setup who wants to help me get this these cams in and sorted out. “help” will be reimbursed for their lost time. if that person also has a dyno and can tune an obd1 motor, that would be even better

JDM GSR milled 0.020, Mugen head gasket = 11.4:1 static  
Skunk2 Tuner2 cams, Tuner gears, tuner springs/retainers  
Skunk2 IM V2 port matched to Skunk2 68mm TB, short ram intake  
4-1 header, 2.5" collector, 2.5-2.25 test pipe, Tanabe SMH cat back

any help would be greatly appreciated

---

<div class="post-metadata">

### Author: ![dyingwish](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/dyingwish/32/6041_2.png) [@dyingwish](https://forums.speedlife.net/u/dyingwish)
#### Post date: [October 29, 2009, 3:59am UTC](https://forums.speedlife.net/t/need-help-with-skunk2-honda-cams/204040/2 "2009-10-29T03:59:55Z")

</div>

Well, for starters it would be a great idea to find the center lines of the new cams. Skunk2 shuld be able to provide you with that. Next, compare the center lines to the OEM specs for your previous cams. That should give you a starting point. Add the intake advance due to milling/shaving to the centerline difference and you have a place to start tuning.

…or are you specifically looking to have someone do this?

---

<div class="post-metadata">

### Author: ![rev29500](https://avatars.discourse-cdn.com/v4/letter/r/8797f3/32.png) [@rev29500](https://forums.speedlife.net/u/rev29500)
#### Post date: [October 29, 2009, 4:52am UTC](https://forums.speedlife.net/t/need-help-with-skunk2-honda-cams/204040/3 "2009-10-29T04:52:59Z")

</div>

Yes, Skunk should have given you the cam specs/centerlines with the cams. Or did you but them used? Either way - they can tell you.

Milling the head makes things a lil more tricky… I would get a degree kit and some clay and go to work. Are they stock pistons?

---

<div class="post-metadata">

### Author: ![bald1one](https://avatars.discourse-cdn.com/v4/letter/b/9de053/32.png) [@bald1one](https://forums.speedlife.net/u/bald1one)
#### Post date: [October 29, 2009, 6:44am UTC](https://forums.speedlife.net/t/need-help-with-skunk2-honda-cams/204040/4 "2009-10-29T06:44:21Z")

</div>

Well it looks like you got the right people helping you…good luck and watch out for Scooba Steeve!

---

<div class="post-metadata">

### Author: ![cmross13](https://avatars.discourse-cdn.com/v4/letter/c/a6a055/32.png) [@cmross13](https://forums.speedlife.net/u/cmross13)
#### Post date: [October 29, 2009, 7:02am UTC](https://forums.speedlife.net/t/need-help-with-skunk2-honda-cams/204040/5 "2009-10-29T07:02:36Z")

</div>

well since a degree wheel kit runs about $300, and i dont plan on doing this again, i’m looking to have someone do it for me.

i bought a whole skunk2 b16 head, hence all the s2 parts. not my first choice in aftermarket stuff, but the price was right. i was supposed to use the s2 flat valves that are in it instead of milling the head, but 5-6 were damaged(over rev) and Skunk2 wouldnt sell me replacements. the pistons are stock 10.6:1 JDM GSR. my compression test came back 180-181-180-179 so i didnt feel the need to tear the block apart and buy ITR slugs.

---

<div class="post-metadata">

### Author: ![bald1one](https://avatars.discourse-cdn.com/v4/letter/b/9de053/32.png) [@bald1one](https://forums.speedlife.net/u/bald1one)
#### Post date: [October 29, 2009, 9:03am UTC](https://forums.speedlife.net/t/need-help-with-skunk2-honda-cams/204040/6 "2009-10-29T09:03:58Z")

</div>

> [@Internet Options](https://forums.speedlife.net/t/internet-options/41427/30):
>
> well since a degree wheel kit runs about $300, and i dont plan on doing this again, i’m looking to have someone do it for me.
> 
> i bought a whole skunk2 b16 head, hence all the s2 parts. not my first choice in aftermarket stuff, but the price was right. i was supposed to use the s2 flat valves that are in it instead of milling the head, but 5-6 were damaged(over rev) and Skunk2 wouldnt sell me replacements. the pistons are stock 10.6:1 JDM GSR. my compression test came back 180-181-180-179 so i didnt feel the need to tear the block apart and buy ITR slugs.

that seems really low on the compression test…???

---

<div class="post-metadata">

### Author: ![dyingwish](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/dyingwish/32/6041_2.png) [@dyingwish](https://forums.speedlife.net/u/dyingwish)
#### Post date: [October 29, 2009, 9:07am UTC](https://forums.speedlife.net/t/need-help-with-skunk2-honda-cams/204040/7 "2009-10-29T09:07:03Z")

</div>

Compression is quite low actually. Did you do the test hot or cold? Did you re-test with a small bit of oil in the cylinder to check ring condition?

---

<div class="post-metadata">

### Author: ![cmross13](https://avatars.discourse-cdn.com/v4/letter/c/a6a055/32.png) [@cmross13](https://forums.speedlife.net/u/cmross13)
#### Post date: [October 29, 2009, 9:10am UTC](https://forums.speedlife.net/t/need-help-with-skunk2-honda-cams/204040/8 "2009-10-29T09:10:15Z")

</div>

Thats stock gsr compression test

---

<div class="post-metadata">

### Author: ![dyingwish](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/dyingwish/32/6041_2.png) [@dyingwish](https://forums.speedlife.net/u/dyingwish)
#### Post date: [October 29, 2009, 9:20am UTC](https://forums.speedlife.net/t/need-help-with-skunk2-honda-cams/204040/9 "2009-10-29T09:20:51Z")

</div>

Stock B18C1/5 should be around 240psi [range is from 270-140]. 180ish across the boards means issues.

---

<div class="post-metadata">

### Author: ![cmross13](https://avatars.discourse-cdn.com/v4/letter/c/a6a055/32.png) [@cmross13](https://forums.speedlife.net/u/cmross13)
#### Post date: [October 29, 2009, 9:28am UTC](https://forums.speedlife.net/t/need-help-with-skunk2-honda-cams/204040/10 "2009-10-29T09:28:30Z")

</div>

Again, those results are from a stock JDM GSR. I dropped it off at the mechanic and asked for a compression test, didnt bother with a leakdown because head was getting redone anyway

---

<div class="post-metadata">

### Author: ![dyingwish](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/dyingwish/32/6041_2.png) [@dyingwish](https://forums.speedlife.net/u/dyingwish)
#### Post date: [October 29, 2009, 9:38am UTC](https://forums.speedlife.net/t/need-help-with-skunk2-honda-cams/204040/11 "2009-10-29T09:38:26Z")

</div>

> [@My Erie,PA (sheetz) story, kinda funny](https://forums.speedlife.net/t/my-erie-pa-sheetz-story-kinda-funny/41416/31):
>
> Again, those results are from a stock JDM GSR. I dropped it off at the mechanic and asked for a compression test, didnt bother with a leakdown because head was getting redone anyway

Again, 240 is stock USDM GSR (10:1 CR)…JDM GSR is 10.7:1, so it would be even higher. :redface:

---

<div class="post-metadata">

### Author: ![imported\_gearhead](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/imported_gearhead/32/5957_2.png) [@imported\_gearhead](https://forums.speedlife.net/u/imported_gearhead)
#### Post date: [October 29, 2009, 10:00am UTC](https://forums.speedlife.net/t/need-help-with-skunk2-honda-cams/204040/12 "2009-10-29T10:00:20Z")

</div>

dude, wtf are you guys smoking? a 10:1 cranking compression motor makes 185 average. 240 would be like a 13-14:1 race motor.

this is a b16 head on what block? Either way, B16 head chamber is bigger than a gsr head, so on gsr slugs (less dome than B16 slugs) should numerically create lower compression, so considering the setup, thats actually really good compression number.

I would just slap it together and set the cams at -2/2 and fire it, set base timing and see how it sounds. There’s going to be very little variation between degreeing the cams and the base setup.

---

<div class="post-metadata">

### Author: ![dyingwish](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/dyingwish/32/6041_2.png) [@dyingwish](https://forums.speedlife.net/u/dyingwish)
#### Post date: [October 29, 2009, 10:20am UTC](https://forums.speedlife.net/t/need-help-with-skunk2-honda-cams/204040/13 "2009-10-29T10:20:19Z")

</div>

What am I smoking? Those numbers are straight from Honda.

gen 3  
94-01 b18b1  
nominal: 199 psi  
minimum: 135 psi  
max var: 28 psi

94-01 b18c1  
nominal: 270 psi  
minimum: 135 psi  
max var: 28 psi

97-01 b18c5  
nominal: 270 psi  
minimum: 135 psi  
max var: 28 psi

The B16 pent-roof chamber is indeed larger than the GSR, so it will be dependant on the block/head combo.

Regardless…the centerlines of the OEM cams and the Skunk2 are VERY close. If the head is off the block right now, put the cams in and see what the +/- limits are on the cam gears using a section of an old T-belt. That way when you DO tune the thing, you’ll know what advance/retard will make the valve touch.

---

<div class="post-metadata">

### Author: ![imported\_gearhead](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/imported_gearhead/32/5957_2.png) [@imported\_gearhead](https://forums.speedlife.net/u/imported_gearhead)
#### Post date: [October 29, 2009, 12:22pm UTC](https://forums.speedlife.net/t/need-help-with-skunk2-honda-cams/204040/14 "2009-10-29T12:22:41Z")

</div>

that has to be a typo… i’ve never see one that high… heck, my guage only goes to 300!

---

<div class="post-metadata">

### Author: ![stinkbox](https://avatars.discourse-cdn.com/v4/letter/s/9f8e36/32.png) [@stinkbox](https://forums.speedlife.net/u/stinkbox)
#### Post date: [October 29, 2009, 12:52pm UTC](https://forums.speedlife.net/t/need-help-with-skunk2-honda-cams/204040/15 "2009-10-29T12:52:37Z")

</div>

My stock block/head b18a read between 180-185 for each cylinder and the book says standard is 184 psi and min is 135 psi for the 9.whatever:1 compression the pr4 b18a/b Ls motor is. Gsr with a b16 head should definetly be in the lower 200’s psi.

---

<div class="post-metadata">

### Author: ![cmross13](https://avatars.discourse-cdn.com/v4/letter/c/a6a055/32.png) [@cmross13](https://forums.speedlife.net/u/cmross13)
#### Post date: [October 29, 2009, 5:44pm UTC](https://forums.speedlife.net/t/need-help-with-skunk2-honda-cams/204040/16 "2009-10-29T17:44:21Z")

</div>

okay i must have had my numbers mixed up. i thought the GSR was 200 Nominal, so i figured 180 was good for a used engine, and since they were so close together, it seemed right to me.

heres a seperate scenario:

Milled 0.020" GSR head  
JDM ITR +0.25 pistons  
0.040" turbo head gasket

since the gasket would compensate for 0.014" of the mill, would i still have the same problems?

---

<div class="post-metadata">

### Author: ![dyingwish](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/dyingwish/32/6041_2.png) [@dyingwish](https://forums.speedlife.net/u/dyingwish)
#### Post date: [October 30, 2009, 4:13am UTC](https://forums.speedlife.net/t/need-help-with-skunk2-honda-cams/204040/17 "2009-10-30T04:13:09Z")

</div>

> [@bill gates gives demo of the Microsoft Surface](https://forums.speedlife.net/t/bill-gates-gives-demo-of-the-microsoft-surface/41445/14):
>
> heres a seperate scenario:
> 
> Milled 0.020" GSR head  
> JDM ITR +0.25 pistons  
> 0.040" turbo head gasket
> 
> since the gasket would compensate for 0.014" of the mill, would i still have the same problems?

I don’t think you’ll have issues at all. The domes on my pistons are over 8cc’s and I have zero issues. The Skunk cams aren’t all that aggressive, but you’d be one step ahead if you can find what degree setting are your limits for v to v contact. You won’t have to worry about hitting the tops of the pistons unless your timing is WAY off.

---

<div class="post-metadata">

### Author: ![cmross13](https://avatars.discourse-cdn.com/v4/letter/c/a6a055/32.png) [@cmross13](https://forums.speedlife.net/u/cmross13)
#### Post date: [October 30, 2009, 10:39am UTC](https://forums.speedlife.net/t/need-help-with-skunk2-honda-cams/204040/18 "2009-10-30T10:39:23Z")

</div>

> [@Took some pics of the Trans Am today....](https://forums.speedlife.net/t/took-some-pics-of-the-trans-am-today/41458/8):
>
> I don’t think you’ll have issues at all…

you mean with the ITR pistons and turbo gasket?

---

<div class="post-metadata">

### Author: ![dyingwish](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/dyingwish/32/6041_2.png) [@dyingwish](https://forums.speedlife.net/u/dyingwish)
#### Post date: [October 30, 2009, 10:53am UTC](https://forums.speedlife.net/t/need-help-with-skunk2-honda-cams/204040/19 "2009-10-30T10:53:01Z")

</div>

> [@My mom's a loser. She got a DWI.](https://forums.speedlife.net/t/my-moms-a-loser-she-got-a-dwi/41411/76):
>
> you mean with the ITR pistons and turbo gasket?

Yes.

---

<div class="post-metadata">

### Author: ![bald1one](https://avatars.discourse-cdn.com/v4/letter/b/9de053/32.png) [@bald1one](https://forums.speedlife.net/u/bald1one)
#### Post date: [October 30, 2009, 12:53pm UTC](https://forums.speedlife.net/t/need-help-with-skunk2-honda-cams/204040/20 "2009-10-30T12:53:51Z")

</div>

> [@150" Plasma](https://forums.speedlife.net/t/150-plasma/41457/2):
>
> that has to be a typo… i’ve never see one that high… heck, my guage only goes to 300!

J my turbo motor with 9:1 CP’s was 210 on fresh rings

[Next page](https://forums.speedlife.net/t/need-help-with-skunk2-honda-cams/204040.md?page=2)
