Triple LOK holds 1355 lb of torque

[Cummins Corvette]

So these are the same trucks that were mentioned at the beginning of this thread? They both lost 200 hp? Hummmmmmmmmmmmm... ... ... ... ... ... ... ... ..... ??????????????

 

[KatDiesel]

Re: And More!!!

Originally posted by Sled Puller

Another quote:

*********************

Needless to say the guy was a little miffed a starts loudly talking about how the Mustang dyno wont load his truck motor and he needs to get it back up on a dyno jet.

Um I thought the orginal numbers were from a Mustang dyno to start with?

 

[Snow man]

Something doesnt sound right here,I'm glad you whooped their truck's Gene!

 

[Greg Boardman-RIP]

We can now see that such claims may have to be backed up somewhere,sometime, and if not true, TDR members will make you look like a jacka$$ again and again... ... Venders beware

 

[Power Wagon]

Before this starts into a flame war...



Let's be clear... a VENDOR did not start this thread, someone else did. That vendor has not posted to it, nor apparently had anything to do with it. And, posting stories from another site as if it were gospel may not be all that wise.



Why don't we let (if they choose to do so) the relevant parties comment first, before we start warning, insulting, and otherwise tearing into people.

 

[RottnDogue]

Anybody got a Link to this other site?

 

[Greg Boardman-RIP]

Power Wagon,

I understand your job is to keep the peace. In doing so I dont feel you have the right to try and run the threads. The claims made in this tread have been backed up by a vendor through a member. Then the claim came up to be a little exagerated(sp). I for one am going to upgrade my stock transmission any day now and that is about $3000... I hope to god that the members have a right to say what they really think. I don't know about you but it has taken me a year to save the money to do this job. And two years to save up enough to make this truck affordable. That is alot of hard work, Research for the Ram with the CTD is hard to come by. This is one of the only places to find good info. Please, please help us keep it this way... Thanks you, Greg Boardman

 

[Sled Puller]

Nothing posted here is gospel.

Nobody is questioning the transmissions.



What is being questioned, and rightly so, is dyno numbers that some companys preach as gospel. (Not ATS, I repeat, not ATS))



It also shows that SAE correction factors may as well be thrown out the window on turbo diesels, something I have believed for quite some time.



Who is to say the low numbers are correct?

I would guess someplace in between.



I have seen articles in TDR claiming about gaining or losing . 5 hp on different things, according to the dyno. Right. These things can't be accurate within 200 hp, let alone measure under 1 hp!!!!!



Gene

 

[Snow man]

Gene,you are 100% right about dyno #'s in my case,my truck at 6900+lbs can run neck and neck in 1/4 mi with a 270 RWHP Z28 weighing only 3450 lbs,my truck needs much more than the 360+hp it had on the dyno to do that. BTW my truck barly made 29psi on the dyno,and makes close to 40 under real load,so no way the dyno #'s are worth much other than for tuning purposes,not actaul hp #'s. I believe my Hp at wheels in the real world is closer to 425+ than 360,the dyno cant provide the load especially in 3rd with 4. 10's. The run took a few seconds from a dead stop on the dyno,it barked the tires nice on the 1-2,shift on the dyno

 

[JHansen]

I went to a dyno day in Calgary where a Mustang was being used-I was not impressed to say the least. Their numbers were wildly extravagant. Not sure whether the extravagance came from correction #'s or misentered data-but it shook my faith in them to say the least. Never had anything to do with a Dynojet-so I can't say one way or the other...



Our dyno day at Waterous in December-and the big one in July-utilized a Superflow dyno. The load is controlled by the operator-believe me, you have no trouble hitting maximum boost. The actual load part takes place over a lot longer time period than on an acceleration dyno. Is it any more accurate? I dunno-my #'s seem to be inline with what others have posted for a similar setup. In the end though, they're only #'s... .



Jason

 

[ATSDiesel]

Dyno Results

We had a good time yesterday. Gatherings like that are a lot of fun and defiantly something we need to do more often. We have a love for our diesel-powered trucks. . I need to clear up a few things about yesterdays dyno runs, The smaller dynamometer testing performs fairly well with power ratings around or below 300HP. Where testing problems come up is with the vehicles that have big turbos and large air systems. The turbos make boost slowly and the over-sized intercoolers take longer to fill with compressed air. The engines need to be loaded in order to produce the kind of power they are designed to produce. On a stock like turbo Diesel the boost is developed quickly producing air to burn the fuel and torque early on. On an engine with a large turbo the load needs to be much higher to make the turbo produce boost pressure. By testing the high HP engines on the lower load settings or a dyno that will not load down an engine to its potential the numbers all end up around the same max. HP due to the lack of air to burn the fuel.

The lack of load=lack of boost=lack of air to burn the fuel=lots of black smoke=low power output. Our Ford with the big injectors and big turbo was only producing 21 PSI yesterday with lots of black smoke opposed to its 33 PSI when loaded, with or with out propane, the HP rating was only about 300HP. Power strokes with a chip, exhaust and propane developed the 300HP range. The stockers developed an additional 50 to 80 HP just adding propane. Our 01 Dodge did the same thing showing only 317 HP. My point here is posing torque and HP numbers need to be accurate for a number of reasons.

The Mustang dyno tested on yesterday was a small 300 series compared to the 1700 series tested on last Saturday. There are some big differences here. The smaller dyno has 2 small rollers, one front and one behind the wheel. The 1700 series has one 6-foot diameter roller the wheels sit on. The two smaller rollers (somewhere around the 15 to 17-inch diameter) do not grip the wheel as the large roller does; this explains why the rubber on the high HP trucks melt off on the small dyno. The electric breaking effect of the dynos is also very different. This helps explain why the numbers all fall in the 300HP and 1000 Lbs range.

We are working on a standardized means of testing for future events and using test equipment that will load these trucks properly. There are a lot of Diesel fanatics out there like our self’s that want to show up at an event and see how there daily driven Diesels compare to their friends. Working out this dyno thing will require some development, I think it will be worth it. We are going to continue work with the larger dynameters around town until we can come up with a repeatable test for all of the Diesels, Ford, Chevy and Dodge.



This is alot O-fun.



Clint Cannon

www.ATSDiesel.Com

 

[RottnDogue]

How come Torque #'s seem so High? PSD with 350 hp making over 1ooo on the TorqueOmeter? Guys in the 200 HP range making 800-900 for torque? IS this location? High altitude? Dyno? Or were the Torque #'s the NE guys made low? 400 + hp and 800+ ft lbs. 350 + hp and 750+ FT Lbs?



Darren