Symptoms of wrong cam installation

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B3,
Numbers don't add up.....
You say the cam is very sedate, idles smoother than the same cam in a smaller engine.
The implication from that is that it is not the same cam that is being compared.
I doubt the cam is retarded if it idles smoother because retarding a cam usually worsens idle quality.
 
B3,
Another thing. Low CR. That is also going to worsen idle quality with a big cam, so another reason that I doubt the cam is retarded given the info provided about idle quality.
 
AJ/FormS said:
Some of you guys can't justify the GVod.
Some cannot understand 32mpgs with a 367.
Some of you just don't like me.
Ok I get that.
But do you really have to run yur mouths off at things you don't understand?
Just cuz you can't do what I do, doesn't mean it can't be done.
To repeat the story;
the day I tracked my car, I had 3.55s in the back, and the Commando A833, and as always, I was splitting gears. The first four road-gear ratios are;
10.97-8.55-6.82-5.32 The splits are .78-.80-.78
with 5.32s the math says she hits 93@6220.......
the powerband requirement of this combo, shifting at say 5800, would thus average ~1200rpm.
If you cannot see the value of 4 ratios to 93mph, which being two electric full-throttle shifts and one pull on the stick, and the engine sitting right at peak power for almost the entire Eighth; well, your insults are water off a duck's back.
There is a reason small engines have CVTs, and my GVod splitter works with my transmission almost the same way.
So, just cuz you guys can't make it happen,
doesn't mean it can't be done.

BTW to pull this trick with a regular A833 and say 5.38s; the road ratios would be;
14.31-10.33-7.53-5.38, the splits are .72-.73-.71, an average of say, .72- So again, shifting at 5800, the Rs will drop to 4180, so a powerband requirement of 1620.
Of course, that 14.31 is as good as useless ..... so, you would probably gear it for three gears in the Eighth.
Ok so to get 5.32 in third, you need about 3.73s in the back; so, the road-ratios are;
9.92-7.13-5.22-3.73, but ok, I'll give you the Commando low gear, and
11.53-----7.13-----5.22-----3.73 compared to my
..10.97-8.55-6.82-5.32----------------------2.77
BTW, my third gear is 4.97, for 93=5765; lemme put that in the line-up for you, with the rest of 'em;
..10.97-8.55-6.82-5.32/4.97-3.88/3.55-2.77
Hyup, 8 stinking usable ratios, that I use in several different ways.
But if you run a 4.10 like some guys do, then
12.67(Commando)-7.87-5.74-4.10; with 26.5s that makes for 93=4840 in Fourth/6770 in Third.
So there ya go, try to find the perfect rear end/tire/and cam combo, to use the regular A833, in the Eighth; good luck with that.
I hit the numbers with a smaller cam, because of the agreeable ratios on both ends, plus the 180psi CCP, plus; I only have to tug on the shifter but one time.
But you know,
I'm just a streeter,
so what do I know ........
Go ahead insult me some more;
it speaks directly to your character .....
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what the hell did he just say. Wholly crap!!! I must be doing something wrong.
 
Bewy said:
B3,
Numbers don't add up.....
You say the cam is very sedate, idles smoother than the same cam in a smaller engine.
The implication from that is that it is not the same cam that is being compared.
I doubt the cam is retarded if it idles smoother because retarding a cam usually worsens idle quality.
Click to expand...

he does have full exhaust on the car, so it tends to influence my opinion somewhat.
But the idle seems way less choppy than my 360 did with same cam and similar( probably) compression.
Remember, this cam is on a 106 Lsa, so by nature its going to have a choppier idle, especially installed per Howards 102 recommendation.
 
I’m surprised the compression test hasn’t been tried yet.
Takes 5 mins and would shed some light on the situation.
If it cranks like 130-140...... you have your answer.
If it cranks 180-200......it’s unlikely the cam install is way off.
150-170...... eh...... maybe/maybe not in wrong.

On another note, 260@.050 on a 106 and closed exhaust isn’t going to be super happy.
 
Bewy said:
B3,
Numbers don't add up.....
You say the cam is very sedate, idles smoother than the same cam in a smaller engine.
The implication from that is that it is not the same cam that is being compared.
I doubt the cam is retarded if it idles smoother because retarding a cam usually worsens idle quality.
Click to expand...

Which is why I suggested it was a different cam. You see the response that got. lol
 
B3422w5 said:
he does have full exhaust on the car, so it tends to influence my opinion somewhat.
But the idle seems way less choppy than my 360 did with same cam and similar( probably) compression.
Remember, this cam is on a 106 Lsa, so by nature its going to have a choppier idle, especially installed per Howards 102 recommendation.
Click to expand...

No, the choppiness will be a little less as the cam is advanced and a little more as it's retarded.....although I'm not sure you could actually hear a 6 degree difference one way or the other.....I could be wrong.
 
PRH said:
I’m surprised the compression test hasn’t been tried yet.
Takes 5 mins and would shed some light on the situation.
If it cranks like 130-140...... you have your answer.
If it cranks 180-200......it’s unlikely the cam install is way off.
150-170...... eh...... maybe/maybe not in wrong.

On another note, 260@.050 on a 106 and closed exhaust isn’t going to be super happy.
Click to expand...
Around here? Are you kiddin? That would make too much dang sense.
 
So the 260 / 265 is that advertised duration or at 50 because if that's advertised duration that's pretty mild cam and compression should not be an issue I was assuming it was at 50° and in that case flat tops and standard Edelbrock combustion Chambers are too big in my opinion.
 
K.O. SWINGER said:
So the 260 / 265 is that advertised duration or at 50 because if that's advertised duration that's pretty mild cam and compression should not be an issue I was assuming it was at 50° and in that case flat tops and standard Edelbrock combustion Chambers are too big in my opinion.
Click to expand...

its 260/264 at 50…. Its big
296/299 advertized

compression test is a good idea. Its not my car, i can only suggest tohim what to do.
He is hard headed…runs in the family..lol
 
B3422w5 said:
its 260/264 at 50…. Its big
296/299 advertized

compression test is a good idea. Its not my car, i can only suggest tohim what to do.
He is hard headed…runs in the family..lol
Click to expand...

Well I'm tired of hard heads and I'm not dealin with one, much less two so.....yall have a good time.
 
B3422w5 said:
its 260/264 at 50…. Its big
296/299 advertized

compression test is a good idea. Its not my car, i can only suggest tohim what to do.
He is hard headed…runs in the family..lol
Click to expand...
LOL I can respect that. Yeah that's a whole lot of top end for a 340 in my opinion that is (dome piston) territory or extensive milling to the heads and even with that I wouldn't expect that motor to start coming on till about 4,000 RPMs to 8,000 RPMs with a sweet spot between 55 and 7500 or so
 
an hour to pull that cam and be sure its what it is. Id rather pull a cam that till the garden!
 
pishta said:
an hour to pull that cam and be sure its what it is. Id rather pull a cam that till the garden!
Click to expand...

You would?

GARDENING.jpg
 
Did I ever tell you guys how much I like simple azz timing chains and doing my own work. Easier to do it yourself and know it’s right over trusting someone else to maybe doing it right.
 
It seems to me that some members get more sensitive as they age. My life has been pretty tough, I'm sure I have scar tissue on my sphincter, starting from my tour in the USMC. That's life. I'm here for the vast mountains of knowledge offered by the members here. That said, I'm a life long smartass, and enjoy the banter here. Seems like the whole country is getting too sensitive. But I'm an old man, what the hell do I know? I'm enjoying all the information here, and enjoy the characters. I'm thinking my kindergarten was like this.....
 
rumblefish360 said:
Honestly, he asked a question or two and then went on to brag. Ho-Hummm….
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...as all of his posts do. I'm convinced his "367" is the only engine he never built, yet somehow his 15 minutes paying for it in whatever machine shop built it, makes him a sudden expert. I think the only thing he is an expert in is regurgitating information he's read from books, mixed in with a little anecdotal untruths for spice. I don't care what the issue is someone has trouble with, his 367 has never had that, run better than anybody else's crap, gotten better mileage, made more power and run faster than anybody's comparable anything. It's hard for me to believe more people aren't seeing through his crapstorm, because that's exactly what it is.

...then if you don't agree, he starts talkin about how bad a Christian you are, while braggin about how much of a good one he is. There's your clue. Christians are all about humility. That's why you constantly see me "unbragging" about myself making statements like how much I know fits on half the head of a pin. I'm tellin you man, that's how it is too. Tons of people around here have way more knowledge than I do, I'm slap honored to be here among some of them. You included.
 
pittsburghracer said:
Did I ever tell you guys how much I like simple azz timing chains and doing my own work. Easier to do it yourself and know it’s right over trusting someone else to maybe doing it right.
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My brother doesnt work on a lot of stuff himself. One reason is he works 7 days a week and has a ton of irons in the fire. I know i dont. I pay to get heads ported, and my engines assembled, because there are people around way better at it than me. I spec everything out, then enjoy seeing if it performs the way i envision it will. Its worked out really well doing it that way over the years. That said, i have popped enough heads off, pulled enough trannies, lashed enough valves, etc, etc, etc, to be semi dangerous taking care of my stuff…lol
Not all of us have your skillset, or even care one way or the other if we do.
There is absolutely nothing wrong with that. Everybody has different things they are good at. I am just happy to be able to spend time with him at the track once in a while, neither of us will be around forever
Try not to be so judgemental about what reasons people have for how and why they do things. He has skills i doubt very highly you have. Everybody is different.
 
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RustyRatRod said:
No, the choppiness will be a little less as the cam is advanced and a little more as it's retarded.....although I'm not sure you could actually hear a 6 degree difference one way or the other.....I could be wrong.
Click to expand...

i think the choppiness will be more noticeable advanced, not retarded.
Retarded will tend to smooth it out
 
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