Hi,

Anybody using them?
I know S2 can't deliver these cams since aug. last year despite it's the new big bang.

thx

 

I had a set of ultra 1's on order for 2 months and eventually cancelled the order because I was told they had no clue when a release date would be, they were still testing and resolving issues. That was back in early august. I don't wanna be a guinea pig on the first round of these anyways after what I've heard they are doing.

 

From what I've heard they are chewing rockers and lobes up. There is only so much cam you can put on a stock rocker, no matter what special oil or witchcraft you may think you can do to stop or even slow down wear.

 

It might prove their real level of R&D and marketing.

 

I was going to order Ultra 1's but with lack of testing and already a bad vibe hearing horror stories I settled on Pro 2's because they are tried and true. The Ultra series work great with K series, but roller rockers are another level compared to flat tappet.

 

THIS couldn't explain it any better. REAL R&D and marketing can't defy physics my friends. Let's not make stabs at skunk2. At least they aren;t releasing them and destroying peoples motors like some other companies have in the past....

 

It's too late. Product introduced, advertised and they have half years old paid orders.
IF the problems are true then I call them a liar when stating these and they should admit it and apologize.

"products are carefully planned and designed"
"then subjected to rigorous dyno, street, and race track testing"
"state-of-the-art engineering and R&D department as well as through extensive engine development and testing both on the race track and the street"

 

The main issue is that most of these competing companies are chasing hp in K-series engines, and they don't care about the b-series even though they have a full cam line up for them. I had asked about the ultras and even the BMF cams if they were in production for B-series and they never answered. There are sets of ultras out there, there was a set close to me but I didn't want to take the chance. Even 4piston said to stay with a pro3 if you want to run a big 3 lobe cam as it has been tried and true and works.

 

you can contact web cams ,, I can tell you that they can do the cams you want with any kind of lift,durations,roller,3 lobes,2 lobes etc!!! or TB they have the tb1,2,3 and rollers with 535 exh and 561 int.and 4pistons have custom webcams with 550 exh and 598 int.for sure u have to change the rocker arms and pretty good springs for sure!!! those are bad *** cams
but as you know, everything depends on the size of your engine

 

I already run bigger then p3 cam on my 84.5x92 13.5:1cr engine.

 

Skunk2 having more cam issues? No.....

 

This is true, valve lash setting must be done by a professional or experienced person, any thing off and those rockers are gonna grind away. I have no experience with them but i have seen plenty of facebook posts by Skunk2 personel about the ultra cams making huge gains over there current compeditor which i cant remember was in the post. Also came across a post with someone making huge gains with ultra cams on a B series.

 

Huge gains before the rockers start to look like Freddy Kreugers face lol. JK skunk2. Luv ya ��

 

The main problem is that most of the rocker arms out there has been worn etc. there won't be a problem with new ones of course. Just keep an eye out, it will be released along with some other stuff to go with it, separate of course.

 

So spend a pile of money on new oem rockers just to have them chewed up as well? If I'm going to buy new rockers, they are going to be Ferrea rollers, not stock Honda ones.

 

Who buys new Honda rockers for cams? That's ridiculous.

 

IMO, the ultra lineup for b series should be a roller line up. Or something similar. Problem solved.

Everyone knows if you want really big numbers with a big B series you will eventually have to make the switch. You can only go so big on a flat surface before you run into issues. Domestics guys realized that LONG ago.

 

Good point.

 

I'm gonna second this, the problem with real BIG 3 lobe cams in a B-series is the flat tappet rockers. The geometry and functionality they possess is limited. At this point, it's really old world technology and one of the things Honda took note of when producing the K's.

Yes, they do make rollers for B's. Yes, it is an expensive upgrade. No, you can't run them with 3 lobe cams(I mean technically you could but what's the point when it's only gonna ride the secondary lobe all day? Might as well cut 8 lobes worth of weight off each side and run Singles since you're losing vtec anyway, which many people do.) This works out fine for the drag guys since their cars live at 6k+ rpm but it sucks for the weekend warrior guys. The ones who want to be able to drive their built motor a few times a week like grandmas(all primary lol) to work, school, etc while maintaining its driveability and mpg. But, then head to the strip on weekends, change the tune, throw in some C16, M5, FTW, etc and run it at the track Reliably with the same duration the "Single B" or "any K" guys have.

The problem is that currently(to the best of my knowledge) there is no 3-roller rocker for B's like the stock K's have. Only when a company puts the time, effort and money into designing and producing a set of 3-rollers for a B will everyone be able to run huge secondary(high 2xx*-low 3xx* duration) cams without worrying about the head eating itself. So as much as I love the B-series, I hate to say it but, I doubt we will ever see this day.

Besides the fact, K's are the wave of the future and as time goes on more people will go K and the production of new B parts(at least of this caliber) will dwindle. Because even look at the way "new" B-series parts are produced now: They basically do all the r&d while producing whatever part it may be for a K then change the flange, cut back the duration a little, constrict the piping size some, etc basically "dumb it down" to also work on a great but, at the end of the day, less-efficient motor. We have already seen the limits of B-series port design and flow. There is really only so much you can do with the constraints of the B casting, flow-wise due to chamber size, geometry and valve size. Meanwhile these K guys are gonna be making 500whp AM soon(if not already &#128521. Look at 4piston's "Peacemaker", thing flows like a ****** fire hydrant and I'd still bet dollars to donuts they'll have something even crazier in a few months. Enough with my long-winded rants and tangents, I commend whoever actually read all this and have a great day fellas!

 

There's a dude here who made over 300 with pro 3's

 

I read it ... and learned alot!

 

I understand that, but there is still more power available w/ bigger stroked motors and tall deck setups. Pro 3's are awesome, but get a 600 lift roller cam on a bigger b and watch what it does to a pro 3....and see how much easier it is on valve train. Hence why the K series is designed how it is, and why they make B series look like dinosaurs. I've converted a small block chevy to roller and the difference is unreal. Hard to grasp until you have experience with it first hand.

 

You factor in valve size as well? Because on a pushrod motor the valve is usually over 40mm. A 3tc has about a 44mm valve if I remember correctly and it's a 4 cylinder.

 

I'm not talking valve size, I'm just saying how much more mechanically sound the motor runs and the wear problems it eliminates. No more flat cams, no more worn rockers etc

 

I asked Davis Hsu and he replied: "They are on hold". No reply yet on reason and resolution.