2.56 Gear, Stock Converter, 4100 Pounds, NA 11s?
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Re: 2.56 Gear, Stock Converter, 4100 Pounds, NA 11s?
checkout what a "State-of-the-Art" NHRA Stocker can run with only
BES's 283cid with 4GC Carb Dual-Plane Manifold 11:1 CR
Peak TQ = 342.0 at 5000 RPM
Peak HP = 373.0 at 6500 RPM
at 3400 Lbs w/Driver
pretty close to Monte Carlo ET's
viewtopic.php?p=907142#p907142
BES's 283cid with 4GC Carb Dual-Plane Manifold 11:1 CR
Peak TQ = 342.0 at 5000 RPM
Peak HP = 373.0 at 6500 RPM
at 3400 Lbs w/Driver
pretty close to Monte Carlo ET's
viewtopic.php?p=907142#p907142
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Re: 2.56 Gear, Stock Converter, 4100 Pounds, NA 11s?
The answer is obvious, I don’t know what I’m talking aboutvortecpro wrote: ↑Mon Nov 29, 2021 8:50 amHow do you figure that? 1320/118.24=11.16 And again thats just a jumping off point, typically when I have 119 MPH HP I have a 10.90 car, look closely at Larry's simulations of the first 60 and 330 feet. Its one thing to make power-its another thing to utilize the power.Dragginwagon406 wrote: ↑Mon Nov 29, 2021 4:37 amThat’s great! Thank you, greatly appreciated.maxracesoftware wrote: ↑Mon Nov 29, 2021 12:47 am
the Dyno Sheet shows a bunch of really low BSFC readings
hard to say whats going on there ??
Inertia Factor= 1.27
Wallace Calculator shows : between 476.4 HP -to- 516.4 HP
... i get close to same thing as the Wallace Calculator
AL 427_Wallace_Calculator.jpg
AL 427_ETA_487HP.jpg
He would need to Run something like these 2 Simulations
to show up what's on his Dyno Sheet :
AL 427_ETA_Pro.jpg
AL 427_QuarterPro.jpg
His ET outperforms his mph, quite the opposite of my results. To me, It would appear that there must be an explanation, either he let off before the end, or the engine is going flat somewhere (maybe even at high rpm), or maybe a really bad headwind?
Would you tend to agree? I’ll graph his against mine tonight, should be interesting.
I was look long at the hp dropping off in Larry’s screenshot of Al’s incremental hp/distance, not Wallace.
From a brief look, mine and his drop off in a similar manner. Once I graph it, maybe we’ll see if there’s any appreciable difference. Maybe it’s normal? It’s the first time I’ve seen data like this so it could be inherent to the algorithm.
One thing is for sure, our first 1/8 miles couldn’t be more different.
1.87, 11.72 @ 120, 4110 lbs, 2.56 gears, stock stall, 225/70-15 Cooper Cobras
My sleeper video - https://youtu.be/tcOh6gQ_K_E
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Re: 2.56 Gear, Stock Converter, 4100 Pounds, NA 11s?
Here you go...
Like I said, couldn't be more different.
Like I said, couldn't be more different.
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1.87, 11.72 @ 120, 4110 lbs, 2.56 gears, stock stall, 225/70-15 Cooper Cobras
My sleeper video - https://youtu.be/tcOh6gQ_K_E
My sleeper video - https://youtu.be/tcOh6gQ_K_E
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Re: 2.56 Gear, Stock Converter, 4100 Pounds, NA 11s?
Didn’t realize the Challenger 1320s ran that well.408 Nova wrote: ↑Mon Nov 29, 2021 9:31 amAn interesting comparison would be my 2019 Dodge Challenger 1320.
It run almost exactly what this Monte Carlo runs.
This Dodge weighs around 4500lbs with me in it. It has 485 hp net, 8 forward gears, stock 2200 converter, and a 3.09 rear gear on factory 28.5" tall drag radials.
On average, it sixty's a 1.65, 1/8 mile et is a 7.60 at 93 mph, and 11.85 at 115 in the 1/4 mile, in 1000 foot air.
I'm thoroughly impressed with this Monte Carlo for sure.
Considering the air, you’ve got me covered, for the time being.
I’d try to tree to tree you and enjoy the side by side race, hoping I had enough track to run you down after mid-track.
1.87, 11.72 @ 120, 4110 lbs, 2.56 gears, stock stall, 225/70-15 Cooper Cobras
My sleeper video - https://youtu.be/tcOh6gQ_K_E
My sleeper video - https://youtu.be/tcOh6gQ_K_E
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Re: 2.56 Gear, Stock Converter, 4100 Pounds, NA 11s?
This compares Al's MC and my MC fairly well.maxracesoftware wrote: ↑Mon Nov 29, 2021 12:47 amthe Dyno Sheet shows a bunch of really low BSFC readingsDragginwagon406 wrote: ↑Sun Nov 28, 2021 4:29 pmAmend to 3800 lbsmaxracesoftware wrote: ↑Sun Nov 28, 2021 4:04 pm i need more Info to be sure of my results :
1]= what are Trans Gear Ratios
2]= whats the rear gear ratio
3]= whats the Stall RPM
4]= whats the Shift RPM
5]= whats the Cross or Finish Line RPM
TH350, 2.52, 1.52
411 gears 9 in
4000 stall (4500 pk tq from dyno)
shift rpm is 6000 2nd, 6500 drive
Cross the stripe at 6500
hard to say whats going on there ??
Inertia Factor= 1.27
Wallace Calculator shows : between 476.4 HP -to- 516.4 HP
... i get close to same thing as the Wallace Calculator
AL 427_Wallace_Calculator.jpg
AL 427_ETA_487HP.jpg
He would need to Run something like these 2 Simulations
to show up what's on his Dyno Sheet :
AL 427_ETA_Pro.jpg
AL 427_QuarterPro.jpg
It also shows why you can't "cam up" when running the car like this - the first 150' really makes or breaks your effort, regardless of hp.
You do not have the required permissions to view the files attached to this post.
1.87, 11.72 @ 120, 4110 lbs, 2.56 gears, stock stall, 225/70-15 Cooper Cobras
My sleeper video - https://youtu.be/tcOh6gQ_K_E
My sleeper video - https://youtu.be/tcOh6gQ_K_E
Re: 2.56 Gear, Stock Converter, 4100 Pounds, NA 11s?
Are you flooring the accelerator on this run?Dragginwagon406 wrote: ↑Tue Nov 30, 2021 7:03 amThis compares Al's MC and my MC fairly well.maxracesoftware wrote: ↑Mon Nov 29, 2021 12:47 amthe Dyno Sheet shows a bunch of really low BSFC readingsDragginwagon406 wrote: ↑Sun Nov 28, 2021 4:29 pm
Amend to 3800 lbs
TH350, 2.52, 1.52
411 gears 9 in
4000 stall (4500 pk tq from dyno)
shift rpm is 6000 2nd, 6500 drive
Cross the stripe at 6500
hard to say whats going on there ??
Inertia Factor= 1.27
Wallace Calculator shows : between 476.4 HP -to- 516.4 HP
... i get close to same thing as the Wallace Calculator
AL 427_Wallace_Calculator.jpg
AL 427_ETA_487HP.jpg
He would need to Run something like these 2 Simulations
to show up what's on his Dyno Sheet :
AL 427_ETA_Pro.jpg
AL 427_QuarterPro.jpg
It also shows why you can't "cam up" when running the car like this - the first 150' really makes or breaks your effort, regardless of hp.
Stall and Gear Comparison - hp-mph-distance.png
Do you have a torque curve for your engine from an engine dyno?
Do you have an estimated torque curve for your engine generated by a computer program?
Fun stuff!
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Re: 2.56 Gear, Stock Converter, 4100 Pounds, NA 11s?
YesBobbyB wrote: ↑Tue Nov 30, 2021 10:32 amAre you flooring the accelerator on this run?Dragginwagon406 wrote: ↑Tue Nov 30, 2021 7:03 amThis compares Al's MC and my MC fairly well.maxracesoftware wrote: ↑Mon Nov 29, 2021 12:47 am
the Dyno Sheet shows a bunch of really low BSFC readings
hard to say whats going on there ??
Inertia Factor= 1.27
Wallace Calculator shows : between 476.4 HP -to- 516.4 HP
... i get close to same thing as the Wallace Calculator
AL 427_Wallace_Calculator.jpg
AL 427_ETA_487HP.jpg
He would need to Run something like these 2 Simulations
to show up what's on his Dyno Sheet :
AL 427_ETA_Pro.jpg
AL 427_QuarterPro.jpg
It also shows why you can't "cam up" when running the car like this - the first 150' really makes or breaks your effort, regardless of hp.
Stall and Gear Comparison - hp-mph-distance.png
Do you have a torque curve for your engine from an engine dyno?
Do you have an estimated torque curve for your engine generated by a computer program?
Fun stuff!
Yes, supplied to Larry for the simulation.
Larry (max race software) uses his software to calculate hp, speed, and ETs (among other useful information) at interval distances, based on known dyno numbers, a known time slip, and various detailed input criteria, or that’s the way I understand it.
I graphed the information given by Larry to then compare a fellow MC owner’s results with mine.
Our hp (mph) are not too far off, so It makes for great internet discussion about what I’ve left on the table in due to incorrect gear, stall converter and tires. It also helps people understand what it takes to run a good ET within these poor constraints, and what I need to improve in order to go quicker within these constraints.
1.87, 11.72 @ 120, 4110 lbs, 2.56 gears, stock stall, 225/70-15 Cooper Cobras
My sleeper video - https://youtu.be/tcOh6gQ_K_E
My sleeper video - https://youtu.be/tcOh6gQ_K_E
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Re: 2.56 Gear, Stock Converter, 4100 Pounds, NA 11s?
where's the "ET" spike coming from in your Graph ? , especially in AL's ( red line ) , just before 1000 Ft mark ??
i don't see any "spikes" or "dips" in my Data around that area
here's 4 more examples from 873 Feet -to- 1000 Feet distance for AL simulation :
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Re: 2.56 Gear, Stock Converter, 4100 Pounds, NA 11s?
Thanks for your efforts.maxracesoftware wrote: ↑Tue Nov 30, 2021 1:14 pm MonteCarlo Stall and Gear Comparison - ET.jpg
Dragginwagon406 ,
where's the "ET" spike coming from in your Graph ? , especially in AL's ( red line ) , just before 1000 Ft mark ??
i don't see any "spikes" or "dips" in my Data around that area
here's 4 more examples from 873 Feet -to- 1000 Feet distance for AL simulation :
VortecPro_1970_MonteCarlo_873to904.jpg
VortecPro_1970_MonteCarlo_905to936.jpg
VortecPro_1970_MonteCarlo_937to968.jpg
VortecPro_1970_MonteCarlo_969to1000Ft.jpg
I had noticed that anomaly too, and meant to check on it. It was due to a couple typing errors. Here’s the correction. I created the graphs from the simpler data, not foot by foot.
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1.87, 11.72 @ 120, 4110 lbs, 2.56 gears, stock stall, 225/70-15 Cooper Cobras
My sleeper video - https://youtu.be/tcOh6gQ_K_E
My sleeper video - https://youtu.be/tcOh6gQ_K_E
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Re: 2.56 Gear, Stock Converter, 4100 Pounds, NA 11s?
thanks for the correction !Thanks for your efforts.
I had noticed that anomaly too, and meant to check on it. It was due to a couple typing errors.
Here’s the correction. I created the graphs from the simpler data, not foot by foot.
and what Software are you using to create your Graphs ?? Excel or something else ?
i just changed my Software by adding 2 more Feet distances : 703 Feet and 1080 Feet
703 Feet is about half-way between 660 and 745 Feet
1080 Feet is about half-way between 1000 and 1160 Feet
....... so that the HP Data Curve looks smoother transition to the User
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Re: 2.56 Gear, Stock Converter, 4100 Pounds, NA 11s?
The graphs were made using Google sheets. I typed the data from my phone at table after dinner (hence the miss-key).maxracesoftware wrote: ↑Tue Nov 30, 2021 11:04 pmthanks for the correction !Thanks for your efforts.
I had noticed that anomaly too, and meant to check on it. It was due to a couple typing errors.
Here’s the correction. I created the graphs from the simpler data, not foot by foot.
and what Software are you using to create your Graphs ?? Excel or something else ?
i just changed my Software by adding 2 more Feet distances : 703 Feet and 1080 Feet
703 Feet is about half-way between 660 and 745 Feet
1080 Feet is about half-way between 1000 and 1160 Feet
....... so that the HP Data Curve looks smoother transition to the User
ETA2022_new_distances.jpg
1.87, 11.72 @ 120, 4110 lbs, 2.56 gears, stock stall, 225/70-15 Cooper Cobras
My sleeper video - https://youtu.be/tcOh6gQ_K_E
My sleeper video - https://youtu.be/tcOh6gQ_K_E
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Re: 2.56 Gear, Stock Converter, 4100 Pounds, NA 11s?
i checked out "Google Sheets"The graphs were made using Google sheets. I typed the data from my phone at table after dinner (hence the miss-key).
seems like thats a lot of typing you did , especially on the screen and keyboard size of a Cell Phone
much appreciated ... the Graphs look great !
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Re: 2.56 Gear, Stock Converter, 4100 Pounds, NA 11s?
It was a fair bit of typing, but when you're OCD, it's nothing.maxracesoftware wrote: ↑Wed Dec 01, 2021 2:20 pmi checked out "Google Sheets"The graphs were made using Google sheets. I typed the data from my phone at table after dinner (hence the miss-key).
seems like thats a lot of typing you did , especially on the screen and keyboard size of a Cell Phone
much appreciated ... the Graphs look great !
I know, you know.
1.87, 11.72 @ 120, 4110 lbs, 2.56 gears, stock stall, 225/70-15 Cooper Cobras
My sleeper video - https://youtu.be/tcOh6gQ_K_E
My sleeper video - https://youtu.be/tcOh6gQ_K_E
Re: 2.56 Gear, Stock Converter, 4100 Pounds, NA 11s?
An interesting point of comparison, despite the higher MPH per distance at the top end, at no point while Al was racing was Mike reeling him in. From Mike's point of view Al was *always* pulling away.
Doesn't mean anything, it would be just interesting to see the track length required for them to be equal in speed at some point in *time* then another when Mike finally actually passes Al.
Doesn't mean anything, it would be just interesting to see the track length required for them to be equal in speed at some point in *time* then another when Mike finally actually passes Al.
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Re: 2.56 Gear, Stock Converter, 4100 Pounds, NA 11s?
In this case, our hps are so similar that even after I'm starting to put the power down properly, there is minimal difference to achieve a meaningful shortening of the gap...until I hit drive, and depending on how high his rpm could go.BLSTIC wrote: ↑Fri Dec 03, 2021 1:05 am An interesting point of comparison, despite the higher MPH per distance at the top end, at no point while Al was racing was Mike reeling him in. From Mike's point of view Al was *always* pulling away.
Doesn't mean anything, it would be just interesting to see the track length required for them to be equal in speed at some point in *time* then another when Mike finally actually passes Al.
We know I should be able to hit 142 mph in the half mile, this will make a dent in his lead but no where overcome his 100' lead.
We need to find the time it would take Al to go from 1320' to 2640' at a rate which peaks at about 125 mph (estimated terminal velocity).
I would start from about 1220' to unknown distance (we know my 1/4 to 1/2 mile time would be 18.65-11.84 and top out at 142 mph, but my clock starts at about 1220' and ends when Al covers the second 1/4 mile - about 7 seconds, give or take).
1.87, 11.72 @ 120, 4110 lbs, 2.56 gears, stock stall, 225/70-15 Cooper Cobras
My sleeper video - https://youtu.be/tcOh6gQ_K_E
My sleeper video - https://youtu.be/tcOh6gQ_K_E