Is anyone here using these? I want to get the set but I havent heard much about them.

The N/A cams for an H22 require at least 12:1 compression.

 

what? are you planning to spin them to 10,000 rpm or something?

or do you have Casidium coating problem too?

 

I think I get that.

 

not using them but:

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote"> from Ferrea's website



Sport Compact Roller Rocker System

This Special "Aluminum-Magnesium Roller Rocker System" was designed and developed by Ferrea to replace the factory "Steel Rocker Arm System" and eliminate the V-TEC Function. Factors such as weight, mass moment of inertia, deflection, and cycle durability are taken into account throughout the design and testing process.

Sport Compact Roller Rocker System

Premium Material: We use special high quality 70 Series Aerospace

Aluminum-Magnesium Alloy, heat-treated to provide superior strength at elevated temperatures.
Manufacturing: Fully CNC machined, profiled for weight reduction. (OEM unit weighs 108% more) which improves moment of inertia, and increases the RPM range of Valve-train.

Roller Wheel: The Roller Needle Bearings prevents roller from skidding across the camshaft surface, unlike the (OEM) stock rocker pad, thus reducing friction dramatically.

Tool Steel Pin: The Tool Steel Roller Pin is compressed between the rocker to stablize the rocker motion throughout the entire RPM range.

Installation: Our Roller Rocker System comes with all hardware and requires no head modifications for installation.

U.S. Patent No. US6, 353, 062 B1.

</TD></TR></TABLE>


what's your head flowing at? for these if you're thinking about them and I presume you're trailer queening the H22?

what's the normal head flow for these Don?

something like IN 350 cfm /EX 250 cfm @ 15mm lift on an H22A?

 

Cam cards for the H22 rollers:

http://www.cranecams.com/?show...-0510

http://www.cranecams.com/?show...-0512

http://www.cranecams.com/?show...-0514

that 514 cam is looking kinda nasty.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Michael Delaney &raquo;</TD></TR><TR><TD CLASS="quote">
or do you have Casidium coating problem too?</TD></TR></TABLE>

lol, whats that supposed to mean?

I just figure for an N/A car these would be a big advantage. The whole vtec system is alot of unecessary weight i think.

 

roller cams are a bit overkill for the street if you commute to work as well with her and the powerband is really up there.

are you trailer queening the car or daily driving her?

 

Its not a daily driver, but its occasionally street driven. Those cams would definately require it to be trailered. The minimum compression is 12.5:1 (I was wrong when I said 12) I was thinking about a custom more streetable grind, I think I could safely run 11.5:1 and not run race gas.

 

Not alone is it compression.Its the flow of the head a stock head is not gonna like these cams

 

Most cams won't do any good on a stock head.

This wasnt meant to be a "should I" thread I just wanted to know peoples expieriences with this setup. I assumed that being in an N/A forum that a high revving, high compression, ported head, itb's, bigger valves, max bores and stuff like that was a given.


I find it hard to be competitive in an N/A class with a stock motor.

 

what's your current head flow at ?

 

what does it matter when I'm asking about other peoples expieriences with these cams.

I just bought the head and I wont do any machine work on it till I buy a set of cams to match it to. These cams have been available for more than 2 years and i have yet to hear from anybody about their expieriences with them, be it n/a, turbo, or s/c I just dont want to buy them and find out halfway through the season that they are junk.

 

don't hold your breath...

 

12:1 makes a nice engine on pump gas.
the roller caams work well.....the system does remove alot of weight in the valvetrain.........the h22 engine has no propblem idling at 1000-1100 with them.......... eliminiting vtec just makes the engine sound like a traditional big cam engine at idle.......uses more fuel and higher emissions and such also.

people do look at you strangely though...wondering what the hell is in that thing....lol

I wish someone had made a lightweight roller system with vtec for streetuse, another reason to go to K20? lol

 

Thanks PocketRockets thats exactly what I wanted to know.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by PocketRockets Racing &raquo;</TD></TR><TR><TD CLASS="quote">12:1 makes a nice engine on pump gas.</TD></TR></TABLE>

I run 12:1 CR on my Bseries.

Try running 12:1 CR in subzero temp (there's cold air and then there's COLD AIR) LOL.

Try running 12:1 CR when it's 95-102 F outside. LOL

it's no cakewalk on pump gas (and that includes Sunoco 94 not some 91 octane weak sauce) even if you only take her out for a weekend stroll in the park with ambients flipping at these extremes..

 

Yeah thats a little much where I'm from (Iowa). All we have around here is 92 octane. Most race gas sold here is leaded too unless you buy a drum of it.

 

If you are wanting to make the most power out of your motor these are obviously favorable over keeping the factory rockers. You can give them any profile you want, and they have MANY grinds beyond what you see on those 3 cam cards.

12:1 is a cakewalk on 91 let alone those that have higher octane. Our climate here fluctuates from 10 below to 100+ degrees F and we run 12.5:1 in daily driver applications on 92-93 octane. Never had a problem in 90,000+ miles.

Also, the H22 head flows pretty damn well right out of the box. Much better than a B series and usually better than the average $1000-1500 portwork you get from popular B head porter.

 

I find that with my wideband on, I always have to do some sort of tinkering with the fuel pressure or fuel delivery on very hot days. You must have a pretty robust program for open loop.

 

You can feel a difference with the weather changes but its no big deal to correct. You would think someone driving a 12.5:1 motor around daily would have the ability to take 10 minutes and make a few minor adjustments when the weather changes 110 degrees.

You won't hear any technical mumbo jumbo or scientific explanation from me. Being a little more primitive works just fine. Put gas in tank, tune for 20 minutes, drive everyday for 5 years through snow and blazing heat. Say abracadabra and Drive 1000 miles to a race, run a few mid 12 passes with full interior and a 1.8L, then drive home Sunday evening. Oh yeah we did have a little knock one time when my sister put some 87 in the tank on accident. It was fine as long as you stayed out of the throttle.

I know it sounds terribly difficult, but with a few engineering degrees and a calculator 12:1 can be done on pump gas.

I'm just messing with you man. We have just never experienced any problems with 12.5:1 and some even higher on 93. You can feel it if you get bad gas but that is easily avoidable. My stock EVO is more tempermental than any high comp Honda I've ever had.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 4piston &raquo;</TD></TR><TR><TD CLASS="quote"> Oh yeah we did have a little knock one time when my sister put some 87 in the tank on accident. It was fine as long as you stayed out of the throttle.

</TD></TR></TABLE>

see? that's WOT my problem is.

 

Ha ha. Quit letting the woman pump 87 in it!!! It works wonders.

 

now wouldnt it be a bit easier on the car running 12:1 without vtec? since you dont have a "small" lobe you should be bleeding off some of that with big cams. at least for the 1/2 - 3/4 throttle high load low rpm pinging type situations

 

http://www.prototyperacing.com/rocker.htm

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JCushing &raquo;</TD></TR><TR><TD CLASS="quote">now wouldnt it be a bit easier on the car running 12:1 without vtec? since you dont have a "small" lobe you should be bleeding off some of that with big cams. at least for the 1/2 - 3/4 throttle high load low rpm pinging type situations</TD></TR></TABLE>

I ran on Toda B and their nonVTEC lobe is almost the same size as the OEM ITR VTEC lobe.