Differences in dyno #s - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 20 (permalink) Old 08-27-2007, 02:19 PM Thread Starter
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Differences in dyno #s

hey guys, whats the difference in a load dyno and a regular dyno? like how do they get the #s, why do they read so different, etc.?

For instance, when i dynoed my truck on a "regular" dyno, they had to not only put it on the rollers, but put a mark on my fan belt and use a laser thing to get the dyno to pick up readings, also when i dynoed on that dynojet my #s were

on motor
410 hp
720 tq

with pane
490 hp
860 tq

on the load dyno, they just strapped her down and went

on motor
335 hp
917 tq

with pane
383 hp
1050 tq

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post #2 of 20 (permalink) Old 08-27-2007, 08:59 PM
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Darin.. what did you say that cummins had done to it..? the CR? that dynoed a little more then you..

I honestly really dont know why it read diffrent.. average the to together and thats you HP.. :roflmao:

WHERES THE VIDEO? so you can make the hole garage go deaf?

Jordan

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post #3 of 20 (permalink) Old 08-27-2007, 10:20 PM Thread Starter
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well the guy doin the vid was on the drivers side you it may not be THAT loud... but im waitin on him to upload it, didnt get it with my camera. it blew a lil smoke too!

and the cummins did dyno more than me on motor, which sux!, haha. but i Barely got em on pane, which still sux.. we are goin to the track friday tho to see if she pulls as hard on low end too. and jordan, look at the 03-07 cummins section, there was quit a bit that changed between the years!

1st murdered out 2011 F250 CC SB Fx4 lariat
2008 F250 CC SB 4x4 lariat dark stone, s&b intake, 5" flo pro straight pipe, 7" flo pro tip, sct livewire custom tuned by Eric @ IDP
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2003 F250 CC SB 4x4 lariat centinneal black on black modded up
2001 F250 CC LB 4x4 xlt maroon lifted up
1997 F150 EC SB 4x2 xlt red
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post #4 of 20 (permalink) Old 08-29-2007, 01:55 AM
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Quote:
Originally Posted by 6L strokin
well the guy doin the vid was on the drivers side you it may not be THAT loud... but im waitin on him to upload it, didnt get it with my camera. it blew a lil smoke too!

and the cummins did dyno more than me on motor, which sux!, haha. but i Barely got em on pane, which still sux.. we are goin to the track friday tho to see if she pulls as hard on low end too. and jordan, look at the 03-07 cummins section, there was quit a bit that changed between the years!

Yeah so.. I know that.. ... Either way .. your poopystroke.. hardly dynoed more then him when you wer eon drugs.. but some drugs on that cumm-a-part! Watch those Headgaskets buddy!!!!! :Thumbup: Im not being a smartarse.. I dont want to see you dish out all that money..

BTW how much do you have into your truck Darin? and you said the CR did all that on programer, intake and exhaust.. come on pal.. DO IT.. DO IT.. conver to the darkside! ill give you a cookie!! :shrug: with milk!

Jordan

95-dodge 2500 built to the hill... - sold to litle brother
03- stroker 6.0 studs and basic BS

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post #5 of 20 (permalink) Old 08-29-2007, 01:35 PM Thread Starter
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......whatta homo! haha. well if you wanna get Technical about it.......all he has done is a smarty and i think a straight exhaust...However, he did have the smarty on level 9 (highest level) on the dyno and if he ran on that level all the time his tranny would go bye bye most likely. you know all my mods man, and they in the sig. hey, if the 6.0 ever blows, ill look into a fummins swap......but till then im gonna be powerstrokin!

1st murdered out 2011 F250 CC SB Fx4 lariat
2008 F250 CC SB 4x4 lariat dark stone, s&b intake, 5" flo pro straight pipe, 7" flo pro tip, sct livewire custom tuned by Eric @ IDP
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2001 F250 CC LB 4x4 xlt maroon lifted up
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post #6 of 20 (permalink) Old 09-07-2007, 10:24 PM
 
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Its me with the blue cummins hows it goin. Dont hate on the cummins. I downloaded a new version the other day and it has more power now!
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post #7 of 20 (permalink) Old 09-10-2007, 06:35 PM Thread Starter
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still cant hang at the track tho ryne! j/k man. that trucks fast....especially for only having like $500 in mods done to it! and it smokes like crazy too! get big dan to get those vids uploaded so we can post em up!

1st murdered out 2011 F250 CC SB Fx4 lariat
2008 F250 CC SB 4x4 lariat dark stone, s&b intake, 5" flo pro straight pipe, 7" flo pro tip, sct livewire custom tuned by Eric @ IDP
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2003 F250 CC SB 4x4 lariat centinneal black on black modded up
2001 F250 CC LB 4x4 xlt maroon lifted up
1997 F150 EC SB 4x2 xlt red
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post #8 of 20 (permalink) Old 09-10-2007, 11:35 PM
 
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Quote:
Originally Posted by 6L strokin
still cant hang at the track tho ryne! j/k man. that trucks fast....especially for only having like $500 in mods done to it! and it smokes like crazy too! get big dan to get those vids uploaded so we can post em up!
Im tryn to get him to upload them. I got to give it to you your truck is a beast I cant wait untill I get a new trans and propane then it will be a good race
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post #9 of 20 (permalink) Old 09-11-2007, 03:59 AM Thread Starter
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, your gonna hop on the propane train too huh? i shoud prolly become a dealer around here and make a couple bucks. think bo jones wants one too! i would say a built tranny and t/c would knock off at least 2 tenths off your track times already and propane knocks off over 1/2 second off my 1/8 mile time so... i like to think of pane as injectors you can turn on and off..and not have to use nos to clean it up!

1st murdered out 2011 F250 CC SB Fx4 lariat
2008 F250 CC SB 4x4 lariat dark stone, s&b intake, 5" flo pro straight pipe, 7" flo pro tip, sct livewire custom tuned by Eric @ IDP
Previous Rides:
2003 F250 CC SB 4x4 lariat centinneal black on black modded up
2001 F250 CC LB 4x4 xlt maroon lifted up
1997 F150 EC SB 4x2 xlt red
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post #10 of 20 (permalink) Old 03-04-2008, 12:46 AM
 
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A load dyno is basically like power-braking your truck and measuring how well it pulls through the "load". A regular dyno measures how fast/quickly your truck gets the rollers running and how long it takes it to get to that point. That's where the horsepower comes from. The "laser thingy" is an optical sensor that reads a piece of reflective tape on your harmonic balancer which gives you a torque reading. In my opinion, the regualar dyno numbers are right.
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