skewing the dyno??

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NC Engine Builder said:
People dont listen. Engine builders with dynos tend to exaggerate numbers, just like head porters with flow benches do. Yall remember MRL? that was the biggest lier I ever saw post on the internet.
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I still got one of his dyno sheets...it came with the engine he build for me
 
StreetSleeper said:
So from what you are telling me,
as I try to understand,
that when he tested the same engine twice,
and the carbureted version made more top end horse power than the fuel injection setup,
the carburetor was flowing more fuel than the fuel injection at the same rpm,
(I believe at the very top end of the rpm range)
-which illustrates why the carburetor makes the increase in horse power for the same engine over the fuel injection dyno run.

Please forgive, just trying to understand why there would be a difference with the same exact engine if rpm was the same.

Thank you very much.
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If you know who Ben Strader is (damn super smart guy) when he built his first engine that made as much power as a carb, he basically had a fuel injected carb.

How the fuel leaves the nozzle (booster) or injector and how that fuel is vaporized as it gets to the chamber is where the power is.

I suggest you go to Straders YouTube channel and find the EFI beats carb or EFI equals carb video and watch it.

Also, if you haven’t seen the Jon Kasse video on what the fuel looks like in a running engine you should search for that.

All engines with carbs run on the fuel puddle. You can see this phenomenon on the dyno in the O2 sensors.

Of course, dynos are just play toys according to those who never use them.
 
One of my favorite dyno claims was changing from a set of 1 5/8 hookers to A body tti 1 5/8-1 3/4 steps headers and a pick up of 45hp was observed.
Were there bananas stuffed in the hooker collectors?
Might want to hook up that 8th spark plug wire when running the hookers.

It's easy to mess with correction factors, whether software or mechanically.
 
crackedback said:
One of my favorite dyno claims was changing from a set of 1 5/8 hookers to A body tti 1 5/8-1 3/4 steps headers and a pick up of 45hp was observed.
Were there bananas stuffed in the hooker collectors?
Might want to hook up that 8th spark plug wire when running the hookers.

It's easy to mess with correction factors, whether software or mechanically.
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That's funny because when I dyno'd my engine I gained 26 hp from a header swap, 2 inch to 2 inch / 2-1/8 step headers ....then I wanted to run the exhaust as it would be in the car, so we removed the dyno exhaust....it picked up another 25 hp.... So, that's a 51 HP pick up total.
There was no messing with anything except for removing a restriction.
I'll be putting this engine back on the Dyno soon if you need proof.
 
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MOPARMAGA said:
That's funny because when I dyno'd my engine I gained 26 hp from a header swap, 2 inch to 2 inch / 2-1/8 step headers ....then I wanted to run the exhaust as it would be in the car, so we removed the dyno exhaust....it picked up another 25 hp.... So, that's a 51 HP pick up total.
There was no messing with anything except for removing a restriction.
I'll be putting this engine back on the Dyno soon if you need proof.
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Your fenderwells are a special situation. Most FW (cough cough hookers) are WAY too long and if shortened/sized better there are big gains changing from the hooker FW variants.

These were under chassis SB headers and they aren't making that difference.
 
crackedback said:
Your fenderwells are a special situation. Most FW (cough cough hookers) are WAY too long and if shortened/sized better there big gains from the hooker FW variants.

These were under chassis SB headers and they aren't making that difference.
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I’m going to do some testing with headers. Don’t know if it’s going to be my 340 or a 395 incher.

I’m betting on both it’s 20 plus going from 1.625 headers to 1.875.

And I’d bet the bottom header is the TTI 1.625/1.750 will be sucking a cold, dry hind tit behind them all.

The nice thing is either engine I test with will be header sensitive. I don’t build numb engines.
 
crackedback said:
Your fenderwells are a special situation. Most FW (cough cough hookers) are WAY too long and if shortened/sized better there big gains changing from the hooker FW variants.

These were under chassis SB headers and they aren't making that difference.
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Yeah, I went to tti under chassis from the fw hookers.
The sb tti headers you mentioned, lost power on the last engine vs 1.75 hookers, somewhere around 30 hp.
 
Newbomb Turk said:
I’m going to do some testing with headers. Don’t know if it’s going to be my 340 or a 395 incher.

I’m betting on both it’s 20 plus going from 1.625 headers to 1.875.

And I’d bet the bottom header is the TTI 1.625/1.750 will be sucking a cold, dry hind tit behind them all.

The nice thing is either engine I test with will be header sensitive. I don’t build numb engines.
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Too bad there aren't any big block Dyno headers laying around to see what my tti headers are giving up.
 
318willrun said:
Just ran across this ...
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Does that guy ever do anything other than talk ?
All I see from the dude is him rambling on and commenting on things. He used to actually make videos where he worked on stuff and raced his cars.
I don't care about some hillbilly hot rod with tires jutted out 6 inches past the body but at least he used to actually do something. He seems like the guy down the block that is always standing around smoking cigarettes talking about how busy he is while never doing anything.
 
Kern Dog said:
Does that guy ever do anything other than talk ?
All I see from the dude is him rambling on and commenting on things. He used to actually make videos where he worked on stuff and raced his cars.
I don't care about some hillbilly hot rod with tires jutted out 6 inches past the body but at least he used to actually do something. He seems like the guy down the block that is always standing around smoking cigarettes talking about how busy he is while never doing anything.
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Actually, he never really showed his work, just talked. So he is on par. :)
 
318willrun said:
Actually, he never really showed his work, just talked. So he is on par. :)
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You know, I just about ALMOST watched that.

Since birds of a feather flock together I suspected Uncle Tony found a dude with similar ideas and bullshit so I skipped on it.

I get plenty of frustration here. I don’t need it from that poser.
 
Newbomb Turk said:
You know, I just about ALMOST watched that.

Since birds of a feather flock together I suspected Uncle Tony found a dude with similar ideas and bullshit so I skipped on it.

I get plenty of frustration here. I don’t need it from that poser.
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Frustration "here" as in FABO, or your shop?
 
318willrun said:
Frustration "here" as in FABO, or your shop?
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lol both. I just about have the dyno whipped into shape.

We bought the thing from an estate sale for 4k and it came with a 1200 gallon tank, two pumps and all the plumbing.

Issue #1. The bigger of the two pumps wouldn’t run three decent lawn sprinklers.

It was COVID time and it took forever to get two pumps. Then it had to be plumbed.

Issue #2. Because it was found at an estate sale, and because the daughter and son in law were selling off the estate and they don’t know a dyno from a butter knife, criminal asshole thieving clowns got there first and stole the drive plate, foot valve and two computer cards that are on the dyno frame.

Slightly bigger than post cards, you could (and they did) unplug the cards, stick them in your pocket and walk off with them.

Those cards at that time had an $1800.00 dollar core charge and the cards themselves cost $2500.00 each. And that was from a guy who used to work at Superflow. They were more expensive from SF.

So sorting out all that crapola took some time.

Now I’m down to the gravy. It’s pretty much plug and play now.

At least as plug and play as a dyno gets.
 
Newbomb Turk said:
lol both. I just about have the dyno whipped into shape.

We bought the thing from an estate sale for 4k and it came with a 1200 gallon tank, two pumps and all the plumbing.

Issue #1. The bigger of the two pumps wouldn’t run three decent lawn sprinklers.

It was COVID time and it took forever to get two pumps. Then it had to be plumbed.

Issue #2. Because it was found at an estate sale, and because the daughter and son in law were selling off the estate and they don’t know a dyno from a butter knife, criminal asshole thieving clowns got there first and stole the drive plate, foot valve and two computer cards that are on the dyno frame.

Slightly bigger than post cards, you could (and they did) unplug the cards, stick them in your pocket and walk off with them.

Those cards at that time had an $1800.00 dollar core charge and the cards themselves cost $2500.00 each. And that was from a guy who used to work at Superflow. They were more expensive from SF.

So sorting out all that crapola took some time.

Now I’m down to the gravy. It’s pretty much plug and play now.

At least as plug and play as a dyno gets.
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Your about to have fun !!! That's good
 

Newbomb Turk said:
lol both. I just about have the dyno whipped into shape.

We bought the thing from an estate sale for 4k and it came with a 1200 gallon tank, two pumps and all the plumbing.

Issue #1. The bigger of the two pumps wouldn’t run three decent lawn sprinklers.

It was COVID time and it took forever to get two pumps. Then it had to be plumbed.

Issue #2. Because it was found at an estate sale, and because the daughter and son in law were selling off the estate and they don’t know a dyno from a butter knife, criminal asshole thieving clowns got there first and stole the drive plate, foot valve and two computer cards that are on the dyno frame.

Slightly bigger than post cards, you could (and they did) unplug the cards, stick them in your pocket and walk off with them.

Those cards at that time had an $1800.00 dollar core charge and the cards themselves cost $2500.00 each. And that was from a guy who used to work at Superflow. They were more expensive from SF.

So sorting out all that crapola took some time.

Now I’m down to the gravy. It’s pretty much plug and play now.

At least as plug and play as a dyno gets.
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Damn stationary race car
 
Scody21 said:
Damn stationary race car
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At least. And more expensive. That damn thing breaks itself if I leave it too long.

I suppose when I get home from this short trip it’ll be good and pissed off and it will require some soft touches and smooth words.

Wait…am I taking about the dyno or my wife? Maybe both?
 
Newbomb Turk said:
At least. And more expensive. That damn thing breaks itself if I leave it too long.

I suppose when I get home from this short trip it’ll be good and pissed off and it will require some soft touches and smooth words.

Wait…am I taking about the dyno or my wife? Maybe both?
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You better sweet talk both of them, sleeping in the dog house is cold N wet this time of year….
 
318willrun said:
If I were to engine dyno something, I truly believe it would be a stone-stock 318 2bbl to see if I could tune/time it to the 230 "advertised" hp. That would be interesting.
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Good idea for a new video series...
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toolmanmike said:
I wouldn't mind a dyno sheet on my 273 just to have it, even if the numbers are disappointing. If I build another engine (doubtful) I will spin it up just to see what it does.
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If you're happy with it that's all that counts, right?
 
NC Engine Builder said:
Well, dont take it personally, ALL his dyno sheets ended up being grossly exaggerated.
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im not worried about it one bit, the engine runs nice and its a street car anyway, im not looking for every 1/10 of a second i can find

here are the scans of the sheet, at least what i could find

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I can not go down the plumbing isle at Lowes now without thinking about Uncle Tony.
He might be buying a toilet supply line to use as fuel line. Remember it's the best option price wise and the same stuff.
 
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