Hi All,


Already covered.


Anybody understand this one?


http://www.yellaterra.com.au/application.php?page=app7

Looks like exactly what I requested. Anyone need a salesman to translate?


To answer the question I did not ask, is a diversion from those I did ask.


Already covered.


No questions needed. As a theory it might be valid. In practice the numbers aren't there. I thought thats what I said.


Actually it looks to be all internet, and nothing from the streets.


Faking (or bluffing) ones way through a conversation, as opposed to, making up a story to start it.


I still don't know what I should investigate, but I did find this. It's the story of how a “hands onâ€

Man, listen to the crickets chirp.... "chirp.........chirp.........chirp....."

Hi andrewk, All,

Still working on my response to the post I missed. Right now it's 8 pages in MS Word. Hopefully it will be shorter and thankfully it will be my last.

Meanwhile, I thought I'd explain DrJays joke.

Starting with my reference to "significant gains from ratio rockers".

Those four events are cam specs. They represent both valves opening and closing points and are expressed in crankshaft degrees as found on the "cam card" that comes with the cam.
Using those specs to check the camshaft relationship to the crankshaft is called "degreeing the cam". Lift can be checked at the same time.

His questions are another diversion. They do not make sense and do not relate to my statement, or anything in the entire thread.
Poor substitute for a question/comment. Maybe it was a typo. Can you say, faking it?


I guess Hans didn't bother to tell him I was degreeing cams before he was born.


Regards, Norm

why would you do all that work to that series 1...all the work you can do to it would get you little gains..better off spending the cash for more over all power..like getting a series II SC...thats like 235 or more horses..and if you really want to spend the money for more power then get that series II rebuilt to performance specs.. that would kick..performance equals money. A series II runs a hell of alot smoother. just my two cents

That is almost verbatum what I said a few pages back.... But we are still awaiting Dr. Jays "triumphant" return to the board so he can claim his second place prize.

Andrew

Hi ahondadriversnightmare, All,

Please define "all that work" and how "little gains"are the result.


The reason I wouldn't:
No challenge involved, any "cool aid drinker" can do it.

Better bragging rights if one built a Series 1 to "like 235 or more horses", without the blower.

Turbocharged400sbc is using blowers to make more power than I would. I expect, he will be here shortly, to tell you about his "little gains".

Regards, Norm

Hi andrewk, ahondadriversnightmare, All,


Easier to adapt the S2 head than to port the S1 to the same numbers, but how much is left untapped in the S1 head?

James and I have different philosophies. I would use the S1 head, as it would present more of a challenge.

1 HP per cubic inch in an engine that small seems like a piece of cake.

But what do I know?

Regards, Norm

Hi Norm, All,
I think I understand where you are going with that. The debate was about the sole benefits of a rocker change without a cam swap, and how this rocker change supposedly increases lift and duration enough to make it worth the time. So the S1-S2 debate is not what was initially discussed, right? I kind of like your point about what is left untapped in the S1 head. Since the dimensions are essientally the same, what are the changes to the S2 from the S1, and what can be done to the S1? And would the time and mone spent in the custom S1 head job be worth it? With the availability of good aftermarket parts, can the S2 be made to out perform the total potential capability of the S1? I know you are a fan of using factory stuff to its fullest potential, and I think that it would make a more impressive build if one were to use the S1 stuff, but only if the potential was there. I guess I should research the differences in the S1 head and maybe Ill come up with some thing. This is kinda random, but I am just throwing some ideas out there.

Andrew

Hi andrewk, All,

Not going very far. Unless the right car becomes available, my input is academic.


Was there a debate? Since DrJay’s bogus figures were based on his presumption that both heads flow the same, discussing the differences and where the power actually is, should be on topic.


S2 head was cast with bigger ports and machined for bigger valves. Any mods applied to one should work on the other.


Depends who does the work. All head guys are not created equal. If all you want is the most power, use the S2 going in.


Everything being equal, the S2 will always outperform the S1. S2 heads on the S1 might do better. James will tell us when he finds out.


I use OEM stuff as long as it does the job. Common practice is to buy aftermarket parts that are not needed.


Don't forget to check this link.

Regards, Norm

Ok...I can see I've been away far too long...AGAIN!!! Norm...as always, you've been busy keeping everyone on the straight and narrow, and although I'm sure you and Andrew have both covered this, I just want to refresh a few points....


1. Without comparative dyno testing on SIMILAR engines, how can it be said that these aftermarket rockers can in fact improve performance at ALL? It's pure speculation, as making based comparisons of rocker arm geometry gains between non similar engines is utterly ridiculous due to the fact of different intake and exhaust flow characteristics, camshaft profiles, and the like.

Sure they may reduce friction, which is always a good thing in ANY combustion engine, but without comparable testing the claim of even slight gains is mute and irrelevant.

2. This quote really got me.....
Besides, many people enjoy the ease of installation and gains received from rockers. Of course a camshaft is a better solution, but not everyone is willing to dig that deep in their engine so for them this is a good alternative.


Well SUUUUREEE...I just LOVE nothing more than going thru and tearing down the upper end of my engine to install replacement parts that will offer no significant gains in performance, yet give me the bragging rights of having "updated performance rockers" on my engine....


" So man....what's under the hood???"

"Series 1 3800 engine"

"Looks stock."

"Ahhhh...thats just what I WANT you to think.....honestly I have a set of "High performance aftermarket roller tipped rocker arms" that I installed that gained me at least 8-10% more HP and torque over stock.....pretty sneaky, huh?"

"OHHHHHHHHH.....nevermind.....I was gonna race you, but obviously due to those high perf rocker arms you enjoyed the ease of installing, I's SURELY get my azz whooped....I'll spread the word not to mess with you!!!!"


HAHAHAHAHA!!!!!

TOC Admin
Brando

Hi Stroker, All,

Nice to see you back. It's been fun causing enough trouble for two. Did Hi-Speed catch up to you or did you find some extra time to exercise the dial up connection?

It's the itsy, bitsy, teeny, weeny, little bit of extra duration from those rockers that creates all the power.

I'm done

Don't be a stranger.

Regards, Norm

ummmm..not to here but didnt we establish that duration at the valve is the same... it is the extra valve lift/faster opening/closing rate of the valve the "Lift under the curve" that changes and give a itsy, bitsy, teeny, weeny, yellow plokadot bikini...i mean extra power...lol

Hi James, All,


It was established in the first post on the second page.

I thought it was, clearly, a parody on DrJays "little bit of duration" statement, and that it was outrageous enough that it didn't need a "smiley". I guess not.

Am I done yet?

Regards, Norm