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Dyno Forum Discuss Dyno Tuning, and Post those Graphs Here!

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Old 07-02-2016, 04:27 PM   #41
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10.71 at 130 mph, got that mid ten, nice! Looks like the 60ft could have a little more in it too. Also backs up 1,000rwhp. Great job. Weird seeing sudden and accurate success on Internet threads
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Old 07-02-2016, 10:09 PM   #42
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Yes, def some gains to be made in the 60'.


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Old 07-03-2016, 11:07 AM   #43
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Is this an April fools joke in July
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Old 07-03-2016, 11:51 AM   #44
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Quote:
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Is this an April fools joke in July


No joke. My truck is also used for towing too. Ran the 10.70 on Friday, dyno'd 1148 yesterday and then towed the dyno with my customers truck that ran the 10.96.
Image1467564554.503157.jpg


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Old 07-03-2016, 05:13 PM   #45
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Wait a minute....

Did someone just prove the internet wrong???
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Old 07-03-2016, 07:43 PM   #46
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Old 07-03-2016, 08:30 PM   #47
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Here's a dyno graph from Saturday of a full built 6.7 and a Fleece 68/87 turbo. Image1467595726.592542.jpg
No track times for this truck yet, but I will post them when I get them.


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Old 07-03-2016, 08:57 PM   #48
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Quote:
Originally Posted by khaoskustoms View Post
Here's a dyno graph from Saturday of a full built 6.7 and a Fleece 68/87 turbo. Attachment 63549
No track times for this truck yet, but I will post them when I get them.


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That's impressive.

Good job on the track times!
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Old 07-04-2016, 12:39 AM   #49
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Quote:
Originally Posted by JQmile View Post
10.71 at 130 mph, got that mid ten, nice! Looks like the 60ft could have a little more in it too. Also backs up 1,000rwhp. Great job. Weird seeing sudden and accurate success on Internet threads
Do you have reading comprehension issues?

The 71mm truck being discussed went 10.96 @ 125.56, 6572#.

The all-knowing compD calcupotator says 882 rwhp on trap speed.

882 does not equal 1000 or 1100 unless we have switched over to hipster math.

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Old 07-05-2016, 08:02 AM   #50
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Quote:
Originally Posted by nwpadmax View Post
Do you have reading comprehension issues?



The 71mm truck being discussed went 10.96 @ 125.56, 6572#.



The all-knowing compD calcupotator says 882 rwhp on trap speed.



882 does not equal 1000 or 1100 unless we have switched over to hipster math.




Seems that dyno is a little happy with numbers...truck in question made 995hp with a 1.1CF....so....yeah....
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Old 07-05-2016, 09:22 AM   #51
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How much does the driver weigh? 6572 was without driver weight.
 
Old 07-05-2016, 05:22 PM   #52
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Quote:
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Seems that dyno is a little happy with numbers...truck in question made 995hp with a 1.1CF....so....yeah....
Some trucks did better that day, some did worse. No different then drag racing, every pass can be a different ET and MPH depending on conditions. Weather correction was 1.10 on the 995hp pull on July 2nd and was 1.08 on the 1042hp pull on June 11th. Since I run the weather station at every event the dyno automatically adjusts the weather correction throughout the day.
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Old 07-05-2016, 05:23 PM   #53
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Quote:
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How much does the driver weigh? 6572 was without driver weight.
About 150lbs.
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Old 07-05-2016, 07:56 PM   #54
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1100hp on a single 71.

Quote:
Originally Posted by khaoskustoms View Post
Some trucks did better that day, some did worse. No different then drag racing, every pass can be a different ET and MPH depending on conditions. Weather correction was 1.10 on the 995hp pull on July 2nd and was 1.08 on the 1042hp pull on June 11th. Since I run the weather station at every event the dyno automatically adjusts the weather correction throughout the day.

Why not just run uncorrected? That's the great equalizer. Can't correct your ET or MPH at the track (unless it's the few specific NHRA tracks that do offer a correction factor) so why offer a false number on a dyno?

And actually weather has very little to do with great/poor numbers at the track unless your racing on the moon. Having an engine creating it's own atmosphere negates any perceived needed correction. Especially when your spraying horsepower from a bottle.

Maybe the truck will run the number your dyno says this weekend at the Hat. Which should be minimum 133mph given 1060hp@67xx#
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Last edited by 2007 5.9; 07-05-2016 at 07:58 PM.
 
Old 07-05-2016, 11:42 PM   #55
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Is it just me, or does the HP/ET calculator assume a bunch of perfect scenarios. Track prep, soft launches, spinning, slipping lockup, incorrect torque etc etc all make for a slower MPH/ET when you are trying to achieve perfect. Would it not be better to refer to the calculator as a reference guide to what the equivalent power you put down on that pass versus "your only making this much according to 2 input variables..."

With that being said, i agree correction factors should not be used. its all about what you put down that day at that time to the tires.
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Old 07-05-2016, 11:44 PM   #56
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Quote:
Originally Posted by 2007 5.9 View Post
Why not just run uncorrected? That's the great equalizer. Can't correct your ET or MPH at the track (unless it's the few specific NHRA tracks that do offer a correction factor) so why offer a false number on a dyno?

And actually weather has very little to do with great/poor numbers at the track unless your racing on the moon. Having an engine creating it's own atmosphere negates any perceived needed correction. Especially when your spraying horsepower from a bottle.

Maybe the truck will run the number your dyno says this weekend at the Hat. Which should be minimum 133mph given 1060hp@67xx#

What about all the other trucks that ran? Do you think the numbers are off on them? I'll gladly show you how the dyno is setup and how well it works on Saturday at the Medicine Hat event.


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Old 07-06-2016, 12:31 AM   #57
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1100hp on a single 71.

Really hope I can try the new dyno one day, sure looks like it's consistently optimistic though. 370/800 rating at the crank, I'm doubting Cummins is shipping them out hot as new trucks are all a numbers game.


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Last edited by Cummins610; 07-06-2016 at 12:33 AM.
 
Old 07-06-2016, 08:09 AM   #58
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Really hope I can try the new dyno one day, sure looks like it's consistently optimistic though. 370/800 rating at the crank, I'm doubting Cummins is shipping them out hot as new trucks are all a numbers game.


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Had to dyno that in 4th gear since it would hit the factory speed limiter in any other gear.


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Old 07-11-2016, 10:46 PM   #59
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Why drag me into this lol. But the 1/4 mile pass backs those numbers up pretty close on Wallace anyhow


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Old 08-12-2016, 11:23 PM   #60
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New best with this truck. IMG_3498.jpg

10.49 @ 129 mph. Only changes were we swapped on a new SXE 72 with the .90 housing. Drove the truck to the track, out on the Hoosier slicks and ran a 10.55, 10.58, 10.78 & the 10.49. Putting the proxes back on and driving home.


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