Competition 913 RWHP in a race truck...

[TxDieselKid]

It was a Texas truck, wanna guess who's?



The DHRA World Finals in a few weeks should be fun if this guy is showing up...



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[Sled Puller]

Nice job, David Lott!!

 

[TxDieselKid]

Nice job, David Lott!!

Now that is funny right there! :-laf

 

[Bob Wagner]

got to be Joe

 

[Sled Puller]

No, it has to be David.

900 HP from a Powerstroke is right where the midwest Cummins were 7 years ago, its about time the Fords have gotten this close. Almost up with the Chevys now.



Prolly used all the nitrous available in the state of Texas!!

 

[edgerat]

nope its Joe Hellman

 

[Shrimpy]

Wondered how long it would take to show up... ..... Good job TDK. I missed the pulls, cell was turned off.



Not bad for a ol' pipeline welder.....



Jim



P. S. Word is, he has a plate in it to keep temps down. Says there is still some H. P. left... .....



Hey Sled Puller, here in Texas everyone gets 40 lbs of GAS a month... ... FREE Since this is the end of October, he will be full and ready to go November 12... ... .....

 

[TxDieselKid]

Prolly used all the nitrous available in the state of Texas!!

Who cares, HP is HP.



Jimbo, I usally let this stuff go, and let someone else post it, but figured since everyone is posting dyno numbers, I would help out the great state of Texas a little.

 

[Jim Fulmer]

Good number, but I'm not done yet... ..... without a bottle



Joe has been way to quiet for way to long, wish I could see him run.



Jim

 

[BigBadDodge]

Congrates !!!!!





Hey, how much is the bottle good for ? Not that I am ever going to try it, but lets you slapped a bottle on Jim's and my Trucks, we have plenty of fuel what would be the results ? would the motor hold up ? certainly more cooling eh, I don't know jack $heet about Noz.



BBD

 

[Shrimpy]

Hey BBD, I'm not schooled in NOS and my explanation may be a bit simplistic but it basically acts like an oxygen booster. Imagine being able to put an extra amount of air into the engine without changing turbo's or any other mods.



All NOS diesels I have seen run the 1/4 will suddenly clear up (smoke disappears) when it kicks in. Now this can also be achieved with injectors, turbo/turbo's, or pump tweaking. But as Joe D. always said... ... . "more air, more fuel, more air, more fuel, more air, more fuel... ... " Of course, there are downsides. I would imagine that cylinder pressures can get out of hand very quickly, along with temps. Fire-ringing/O-ringing is an absolute (I'm sure you already knew this).



I'm am definently NOT a person who knows enough about Nitrous to offer any guidance, just a rudimentary explanation



Jim

 

[GIT-R-DONE]

Congrates !!!!!





Hey, how much is the bottle good for ? Not that I am ever going to try it, but lets you slapped a bottle on Jim's and my Trucks, we have plenty of fuel what would be the results ? would the motor hold up ? certainly more cooling eh, I don't know jack $heet about Noz.



BBD

Scott, give ole Jetpilot a call. I know he would help school you on this.

 

[KLockliear]

Congrats - those are some good numbers. I must say though, that the graph looks kinda fishy. How did the motor drop 1200ft-lbs of torque in 10mph (from 129mph to 139mph) and the HP only went down maybe 50hp?



Do you have that graph vs RPM?



Let me quantify: Look at the peak values given on the cursor line. 1718. 46tq / 913. 66hp. We can use the HP/TQ formula (generally accepted as HP=(TQ*RPM)/5252) to work backwords. Here, (HP*5252)/TQ = RPM



At that point in the graph (913. 66 * 5252) / 1718. 46 = 2792 rpm. Seems feasible for 118mph.



Now look at 132mph, where the two graphs intersect. Looks to be about 850hp/tq to me. So lets run this through the same calculation: (850 * 5252) / 850 = 5252rpm. So in 14mph, we had an increase of 2460 rpm?



To go to the last point on the graph, lets look at 150mph. Here, the TQ is down to about 200ft-lbs (maybe a little less), and the HP is still up around 680hp. Now, (680 * 5252) / 200 = 17856rpm... that's one high revving cummins!



Just doesn't add up. Not trying to take anything away, but the graph doesn't make sense.

 

[DRAG DIESEL]

It was a Texas truck, wanna guess who's?



The DHRA World Finals in a few weeks should be fun if this guy is showing up...



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Ooooohhhh... . ME NEXT, Keith do mine... ...



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:-laf :-laf

 

[Jim Fulmer]

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



Jim

 

[MADDOG2]

Congrats - those are some good numbers. I must say though, that the graph looks kinda fishy. How did the motor drop 1200ft-lbs of torque in 10mph (from 129mph to 139mph) and the HP only went down maybe 50hp?



Do you have that graph vs RPM?



Let me quantify: Look at the peak values given on the cursor line. 1718. 46tq / 913. 66hp. We can use the HP/TQ formula (generally accepted as HP=(TQ*RPM)/5252) to work backwords. Here, (HP*5252)/TQ = RPM



At that point in the graph (913. 66 * 5252) / 1718. 46 = 2792 rpm. Seems feasible for 118mph.



Now look at 132mph, where the two graphs intersect. Looks to be about 850hp/tq to me. So lets run this through the same calculation: (850 * 5252) / 850 = 5252rpm. So in 14mph, we had an increase of 2460 rpm?



To go to the last point on the graph, lets look at 150mph. Here, the TQ is down to about 200ft-lbs (maybe a little less), and the HP is still up around 680hp. Now, (680 * 5252) / 200 = 17856rpm... that's one high revving cummins!



Just doesn't add up. Not trying to take anything away, but the graph doesn't make sense.

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.

 

[Shrimpy]

Keith brings up some very valid points. I respect his analysis, as I have been to DD on a Vegas visit (did not bring my truck) and Keith spent time and talked with me like I was dropping 8K in their shop.



I don't have near the technical knowledge Keith has in reading dynos, and I also know Joe personally. I believe Joe is at or above 900 RWHP, and that Keith is giving an honest assessment of the graph provided.



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



Jim

 

[TxDieselKid]

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. He says that traction is going to require a little learning curve, but will be trying to get it dialed in for Nov. 12.



Way to go Joe!!

I don't have near the technical knowledge Keith has in reading dynos, and I also know Joe personally. I believe Joe is at or above 900 RWHP, and that Keith is giving an honest assessment of the graph provided.

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.

 

[Shrimpy]

Well said Andrew, I tend to walk the fence on these issues . I KNOW Joe is making some serious H. P. Haven't ridden in the truck with the new motor yet. Nov. 12 will be a fun day



Jim

 

[KLockliear]

Ooooohhhh... . ME NEXT, Keith do mine... ...

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:-laf :-laf

Agree - yours seems to have as much validity.