Competition 913 RWHP in a race truck...

[KLockliear]

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Keith, you can do mine too... ..... sorry he hijacked the thread!

Jim

See Jim, yours looks correct.



#1, TQ is always > HP below 5252rpm. Look at the formula - it HAS to be.

#2, The TQ and HP curves show common trends in their shape - not a HUGE drop in one WITHOUT a subsequent change in the other.

#3, You have graphed RPM at the bottom of the chart instead of MPH.

 

[KLockliear]

Despite what the graph shows Joe's truck is the real deal. The motor he has was built by Keating and in a heads up race with Fulmer would give him a good view of his rear end.

I'm not disputing who will show who what, but rather the validity of that graph. It's bogus - for some reason. I don't know why and cannot speculate until more data has been shown.



If it's the real deal, post the same graph with RPM at the bottom, or better yet, the DRF (Dynojet run file) so us boys and girls at home can view it with the free Dynojet run viewer software. Then we can call Dynojet and ask how their math engine screwed up so bad.



I have no doubt that the HP could be correct - been there, done that, but the TQ graph doesn't add up. Sorry to say too, that if one thing is fudged, the validity of the entire graph goes out the window.

 

[KLockliear]

P. S. ... ... ... Dyno Graphs... ... one of lifes last great mysteries

Jim

Dyno graphs aren't a mystery at all - simple calculation (as shown above). Anyone can do that simple math and see that this graph doesn't add up.

 

[KLockliear]

If you want to doubt the dyno numbers, show up in Houston for those DHRA finals, and I'm sure he will be willing to run what you brung.



I agree, but others will doubt it. I rememeber seeing several other high horsepower guys saying "dyno's don't lie". If that's the way you want to think then more power to you.

Andrew, I'm sure I'll get my chance at some point in the future.



The dyno doesn't lie - I think someone either fudged the graph (drew it) or jimmy'd the RPM reading to make the TQ value skew. The Dynojet software measures HP, then CALCULATES TQ based on the RPM reading. If you falsify the RPM reading, the TQ will be way off. Thing is, looking at that graph, I believe the TQ figure until that severe drop off at 129mph. If it were for real, you'd also see the same drop off in HP.

 

[Jim Fulmer]

Despite what the graph shows Joe's truck is the real deal. The motor he has was built by Keating and in a heads up race with Fulmer would give him a good view of his rear end.



No doubt this is true, a purpose built truck against the Grandpa truck below!



Did I mention that I put 1000 miles on it in the last 2 weeks.



I hate the fact that I'm going to mis the race, sure wanted to be down there to watch the action.



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[JHellmann]

Andrew, I'm sure I'll get my chance at some point in the future.



The dyno doesn't lie - I think someone either fudged the graph (drew it) or jimmy'd the RPM reading to make the TQ value skew. The Dynojet software measures HP, then CALCULATES TQ based on the RPM reading. If you falsify the RPM reading, the TQ will be way off. Thing is, looking at that graph, I believe the TQ figure until that severe drop off at 129mph. If it were for real, you'd also see the same drop off in HP.

The sensor was on a pedestial so probably my truck pulled away from it during the pull. Keep your pants on. :{

 

[KLockliear]

The sensor was on a pedestial so probably my truck pulled away from it during the pull. Keep your pants on. :{

Pants are still on - I'm still at work. If it pulled away, the RPM signal would have been lost, not increased, and the TQ curve wouldn't show up (at least from that point onwards). How about post the graph with RPM showing on the bottom? That would clear it up.



Looks like some serious HP there - should be a fun ride. Oo.

 

[crawler]

Jim get it right. Its not the Grandpa truck; its the 873RWHP Pa Pa truck.



Later,

Wes

 

[Jim Fulmer]

The sensor was on a pedestial so probably my truck pulled away from it during the pull. Keep your pants on. :{

Dang, it's about time you joined us as a member.



Jim

 

[BigBadDodge]

See Jim, yours looks correct.



#1, TQ is always > HP below 5252rpm. Look at the formula - it HAS to be.

#2, The TQ and HP curves show common trends in their shape - not a HUGE drop in one WITHOUT a subsequent change in the other.

#3, You have graphed RPM at the bottom of the chart instead of MPH.

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[JHellmann]

Dang, it's about time you joined us as a member.



Jim

No place else compares.

 

[Sled Puller]

Hi Joe!! :-laf

 

[JHellmann]

Hi Joe!! :-laf

I'm not really Joe... . I'm David Lott... . with the first 900 HP Powerstroke. Oo.



I LMAO when I read that. Funny stuff Gene.

 

[Teamropin983]

I'm not really Joe... . I'm David Lott... . with the first 900 HP Powerstroke. Oo.



I LMAO when I read that. Funny stuff Gene.

Hey I am standing right here



David

 

[TravisG]

Does David have split personalities?

 

[Cummnzpowr]

...

Does David have split personalities?



No he just b!tch slaps Allan away from the computer whenever he sees his name come up on the Dodge forums :-laf sorry Al. . you kinda walked into that one

 

[Teamropin983]

Does David have split personalities?



No he just b!tch slaps Allan away from the computer whenever he sees his name come up on the Dodge forums :-laf sorry Al. . you kinda walked into that one

David :-{} Alan

(Ford ) (Dodge )





Alan after he get's spanked #@$%!



David after spanking Alan :-laf

 

[Teamropin983]

David :-{} Alan

(Ford ) (Dodge )





Alan after he get's spanked #@$%!



David after spanking Alan :-laf

David fails to mention that while he might have schooled me on the tree that my truck is indeed more powerful My 13. 76 @ 100 to Davids 13. 83 @ 98 M. P. H. Not to mention a couple of weeks ago David put down 418 on the dyno to my 540.