2 things: 1. Dyno's can be manipulated. 2. Air quality does affect them. And oh, 3. I haven't dynoed an engine so many will think I'm not qualified to speak on them. They are probably right!!! LOL
Brainstormin' 440 vs 5.9 ...
- Thread starter 318willrun
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I’ve used a few machine shops that have Dyno cells, but my wallet isn’t that big.
The closest I’ve ever come to using one was having my 340 tuned on a chassis Dyno.
I’ll take your word for the inability to manipulate “air density” adjustements.
But also why dyno's put out different results, cause the conditions of the test were different changing the power being made.
well, I wouldn't take my word... lol. I've not experienced dyno's. I only know what many have said about manipulating, and also the air quality affecting. I know most by what they claim and what the car runs
In my mind, if a engine dyno's 450 HP, and it's installed in a XXXX weight of car, and runs a MPH that shows 350 HP, I raise my eyebrows because a 100 hp loss is a lot. A LOT !!! Just say'n
My builds were really fast too until I took them to the drag strip…
The E.T. Can be a sobering experience!
Getting back to your build, I believe you’ll be surprised. I watched a 55 shoebox powered by a 265 and backed with a four speed run in the 12 in 6000+ DA.
I mean really how much horsepower could that thing build?
So back to the RV 440, we should be able to say what the MPH WILL be because we know it has 195 net, plus headers now. What will the MPH be of the HP rating in 3900 lbs ?
There would have to be enough HP for it to get into 12's.... I agree. ET slips are sobering. I'm sticking to my guess, if I can get the RV 440 to go 13.90's, I'll be thrilled.
TT5.9mag --------- 16.90
jrc4y4 -------------- 15.30
dirty white boy-----15.15
71GSSDemon ----- 15.00
Sharpone ---------- 14.85
Killer6----------------14.81
69conv---------------14.80
496 polara --------- 14.78
Turbo440Dart ----- 14.70
70SwingerGuy------14.65
Mopar44134--------14.605
mopowers---------- 14.53
Curious Duster ---- 14.50
red67gts ----------- 14.40
MOPARMAGA ------ 14.32
a-bodyguy --------- 14.319
67/6barracuda ---- 14.20
skep419 ------------ 14.12
junkyardhero ------ 14.00
440 Mike ----------- 13.90
fishmen67 --------- 13.80
sr71mopar---------- 13.75
273 ----------------- 13.70
Garrett Ellison------13.58
331MP ------------- 13.40
Illahe——————— 13.30
RustyRatRod ------ 13.016
jrc4y4 -------------- 15.30
dirty white boy-----15.15
71GSSDemon ----- 15.00
Sharpone ---------- 14.85
Killer6----------------14.81
69conv---------------14.80
496 polara --------- 14.78
Turbo440Dart ----- 14.70
70SwingerGuy------14.65
Mopar44134--------14.605
mopowers---------- 14.53
Curious Duster ---- 14.50
red67gts ----------- 14.40
MOPARMAGA ------ 14.32
a-bodyguy --------- 14.319
67/6barracuda ---- 14.20
skep419 ------------ 14.12
junkyardhero ------ 14.00
440 Mike ----------- 13.90
fishmen67 --------- 13.80
sr71mopar---------- 13.75
273 ----------------- 13.70
Garrett Ellison------13.58
331MP ------------- 13.40
Illahe——————— 13.30
RustyRatRod ------ 13.016
I get that but what proof is there that these calculators are accurate in the 1st place, the original formula was based off some guys hp estimation in the 50/60's and later Road and Track data, no actual dyno results, and when there is dyno results the calculator is assumed to be correct and proof the dyno is the faulty one. And since people are suspicious of dyno's there's no way to verify the formula's, cause the dyno is always assumed wrong between the two.
Like I said I just find it funny, that's coming from the supposed formula guy
Don't the calculators make sense? I trust math. Wallace says my truck has 344 hp at the crank. Does that seem correct? It does to me. Many 5.9's kick 300 hp in stock form with just a 4bbl. Common knowledge. My cam and what little else has it making 344. Sound correct?? Why would the math be 100 HP off on another vehicle. Truth... it's not! I'll ride in the wallace wagon.I get that but what proof is there that these calculators are accurate in the 1st place, the original formula was based off some guys hp estimation in the 50/60's and later Road and Track data, no actual dyno results, and when there is dyno results the calculator is assumed to be correct and proof the dyno is the faulty one. And since people are suspicious of dyno's there's no way to verify the formula's, cause the dyno is always assumed wrong between the two.
Like I said I just find it funny, that's coming from the supposed formula guy
I get that but what proof is there that these calculators are accurate in the 1st place, the original formula was based off some guys hp estimation in the 50/60's and later Road and Track data, no actual dyno results, and when there is dyno results the calculator is assumed to be correct and proof the dyno is the faulty one. And since people are suspicious of dyno's there's no way to verify the formula's, cause the dyno is always assumed wrong between the two.
Like I said I just find it funny, that's coming from the supposed formula guy
Some serious bench racing is taking shape! Spring is right around the corner...
Seems about right or even a little low, but you seem to squeeze more performance for a given power to weight.
So I bet there's a bunch of guy's with a similar truck going way slower (mph) than you but still making similar power to weight but would calculate even less power.
To me anytime I played with the Wallace calculator seemed very optimistic, not saying can't be done but looks people need more power to generally reach the desired goal than Wallace says. So on average I'd say most engines would dyno higher than the calculator says it's making.
TT5.9mag
Two atmospheres are better than one
The Wallace calculation can be wildly different depending on which calculator you use. It’s all very dependent on how well the chassis is sorted out. The engine dyno eliminates variables. They’re ALL just tuning tools. I use as many tuning tools are at my disposal. In fact my trucks 5.9 has been on an engine dyno, the truck has been on the chassis dyno, and as of last weekend, it’s been on a drag strip. Use as many tools as you can to refine a combination, and value each one on its own merit. Non are better than any other because they tell different stories.
Yes you have, the *** dyno never lies. lol
You will know before you make it to the track if the 440 is gonna be a slug, hopefully the *** dyno doesn't lose calibration over the winter. lol
100% absolutely... the meat and potato's ^^^
Absolutely. Tools is correct! And valuable tools. Of all the tools... but of them all, only ET slips race
I don't bench race very long.... I put ET slips on the table
It's winter...I don't bench race very long.... I put ET slips on the table
TT5.9mag
Two atmospheres are better than one
Absolutely. Tools is correct! And valuable tools. Of all the tools... but of them all, only ET slips race
Well not exactly, if you want to dig even deeper, depending on how fast the cars are, reaction time is what wins races.I don't bench race very long.... I put ET slips on the table
LOL.... now you left the tools and brought in the man element
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