Competition New Dyno Numbers 1020 H.p

[Tcolesanti]

That sounds as silly as setting a pulling track up in LA.

That does sound reeeaaallly silly... ... ... . :-laf :-laf :-laf



Wait, DHRA is doing that in May... .....

 

[JLackman]

Hey JLackman do you sleep in a hyperbolic chamber like Michael Jackson just to be sure that your atmosphere is always consistent? Wouldn't want you to feel 10 to 12% different each day.

You can't be serious..... you find a variation of 10%-12% in correced dyno numbers ok???



What in the world is the correction for??



My dyno will correct numbers to within 1-2 hp if the absolute barometric pressure changes by . 8 and that is a major weather change. A 2003 Engine Masters entry was 680chp on my dyno and 680chp on Impasoto's SF-901 in Detroit. THAT is how the dyno calibration and correction standards are intended to work.



WHY do people act like 10%-12% differences in dyno corrected numbers are ok?



You have GOT to be just pushin buttons...









... . just like me heh heh...

 

[JLackman]

My Dyno Jet 248C, inertia, uncorrected numbers. SAE was 1003hp.

Thanks.



Inertia - that would be an upsweep or acceleration test right?



The weather must have been good to correct down like that. Is weather a manual input or real time?



Is that SAE J607 or J1349?



Now to be objective the 1003 SAE probably absorbed more inertia hp than COMPs 1128 because it involved accellerating the mass of the driveline and not the engine alone.



I would guess the inertia chassis dynos account for their internal inertia and that it would not be a part of the final numbers.

 

[DavidTD]

Thanks.



Inertia - that would be an upsweep or acceleration test right?



The weather must have been good to correct down like that. Is weather a manual input or real time?



Is that SAE J607 or J1349?



Now to be objective the 1003 SAE probably absorbed more inertia hp than COMPs 1128 because it involved accellerating the mass of the driveline and not the engine alone.



I would guess the inertia chassis dynos account for their internal inertia and that it would not be a part of the final numbers.

Acceleration, correct. J1349 real time input. Weather was cold/cool and rainy. I don't remember the actual readings.



Yes, the truck accelerated the drums from ~80mph to beyond 140 and it had to turn the transmission, transfercase, driveline, axle, and tire/wheel combo. My experience here is that most of these trucks running modified factory transmissions see roughly a 20% loss from flywheel to tire hp. This sampled with numerous stock vehicles and a couple that have had engine dyno test. This would put Tim at an estimated 1280fwHP. But as I said, this is a guess at best.

 

[jeff2]

:{ my correction factor says bad ***!!!

 

[AKives]

:{ my correction factor says bad ***!!!

So does my dyno observation program. Oo. :--)



Garmon's Diesel has got it going on (as usual).

 

[MADDOG2]

Acceleration, correct. J1349 real time input. Weather was cold/cool and rainy. I don't remember the actual readings.



Yes, the truck accelerated the drums from ~80mph to beyond 140 and it had to turn the transmission, transfercase, driveline, axle, and tire/wheel combo. My experience here is that most of these trucks running modified factory transmissions see roughly a 20% loss from flywheel to tire hp. This sampled with numerous stock vehicles and a couple that have had engine dyno test. This would put Tim at an estimated 1280fwHP. But as I said, this is a guess at best.

Also notice what COMP is running on the front of the motor compared to stock Vac. pump, power steering pump, ac compressor, alternator, fan, etc.

 

[lmills]

where'd the engine come from originally???

 

[TopFuel6]

from your town, and what a peice it is, tell Jason he built 1 hell of a peice, only 21* timing and all this,





yaw imagine whats gonna happen when we decide to lean on it :--)

 

[lmills]

I know... I was just pokin some fun. We were just talking on the phone about it. I gave him the updated numbers... ... . sounds good.

 

[TopFuel6]

I would like to send out a special thankyou to Scott at Mass diesel, you've helped me tremendously and this landmark run is just as much yours as it is mine,everytime I call you always put me on hold so you can come up with some lam excuse not to talk to me,



( hey there, let me get back with you on that) :-laf



and sure enough, 3 days later when I have to call you back you have all the answers,I need to spend more money, just what a southerner wants to hear from a yankie,



Thanks again to everyone who took the time to tell an idiot how its done, I'm still learning



now lets go race and have some fun Oo. , looking forward to this weekend in albany,GA 1/8 mile racing where you can't afford to make any mistakes

 

[F8LDOSE]

I think i can... i think i can... i think i can... oh yes the little engine that could. Congrats Tim!!! I knew that was one wicked engine... way too much for me too handle... after it ripped the body off my ram funny truck and i still ran a 6. 80 at 160, granted the truck only weighed 3500lb, nonetheless awesome job!

 

[CATCRACKER]

my bet is that motor vs motor same conditions jeff will make more hp. 1st of all he has been tinkering with these engines since 94 the year they put the mack p pump on the 12v's plus he has a sheid pump on his side..... need I say more. Bottom line there are people who try d/f routes to be the leader in p-pumped truck performance but sheid is still building the baddest fueling monster trucks hands down. Jeff has proven he can set up, tweak and tune p-pumped trucks as good and better than most anyone in the country.

 

[massdiesel]

Tim we supply the parts to you thats all we do. You do what we say to and we laugh with you and make fun of Nick just to go racing and have fun. The true work and dedication you show is above and beyond what most do. . I know you always dont like what we say to do but you take it like the best and we thank you for helping us to get to the next level also. If no chance of rain in the forecast you know we will be with you in GA to watch you tear it up with the other southern bells.

 

[AKives]

While some stupid yet real HP has been made at GDP in McDonough, GA in the last week I have a funny feeling some copycats are going to see major carnage. :--)



Just my . 02 though plus what the heck do I know?

 

[DHRA]

Bottom line there are people who try d/f routes to be the leader in p-pumped truck performance but sheid is still building the baddest fueling monster trucks hands down.

And one really badass car if I may say so myself..... :-laf

 

[KBaucom]

Nice run. Turbos came on quick that is considering that the run started a 85MPH.

But congrats on the big number.

 

[DavidTD]

Nice run. Turbos came on quick that is considering that the run started a 85MPH.

But congrats on the big number.

I don't understand what that means.

 

[JLackman]

What is so impressive to me about these Cummins diesel engines is the power levels are so much higher than what is considered to be high end for the Mopar small block for instance. I know of a W-8 358 Mopar small block that just came off the dyno and was 740chp. Even the 358 Mopar ProStock truck engines with the "hemi" heads were under 1000chp on happy dynos. That stuff is considered to be the ultimate in Mopar small block yet we see here 1000+ chp 360 diesel engines making more power at half the RPM!



Granted they are turbocharged, if you put turbos on a 358 W-8 it would be more than 740 chp, but still these diesels at these power levels are very impressive.



How does the timing affect the EGTs? Is it like gas advancing the timing lowers the EGT?

 

[jeff2]

I am glad we are racing 1/8 mile this weekend with this new

silly power, I can't wait to feel the pull, but I'm not ready

just yet to run the full 1/4 top speeds, until the truck is

driving better. The truck will be at full power in albany. Oo.