Finally got my Truck on the dyno...

[DKiesewetter]

I finally hit up the dyno again after my FASS was on... dyno run was done much more scientificly... and the numbers are right where I had hoped they would be.



TST at 0/0 resulted in a 296 HP run



set at 9/5 I ran 479. 27 HP



Set at 9/1 I ran 479. 70 HP



This proves that HP isn't really affected by the tq setting... It also impresses the hell out of me that my stock clutch was able to hold. I was more than pleased with a 183 HP gain over baseline.



Doug

 

[Camp]

Nice run, now you need to tow out somewhere so we can pull up the mountains and see how much of that you can use.

 

[Kimber]

What kind of torque numbers did you have before and after?

 

[Tomeygun]

I finally hit up the dyno again after my FASS was on... dyno run was done much more scientificly... and the numbers are right where I had hoped they would be.



TST at 0/0 resulted in a 296 HP run



set at 9/5 I ran 479. 27 HP



Set at 9/1 I ran 479. 70 HP



This proves that HP isn't really affected by the tq setting... It also impresses the hell out of me that my stock clutch was able to hold. I was more than pleased with a 183 HP gain over baseline.



Doug

wow, you are my new best friend...

couple of ?'s:



1) why no torque reading?

2)have you slipped your clutch yet? (makes me feel real dumb that i jumped so fast and put a CON-OFE in mine, albeit it is a 13 inch, not the factory 12'er that my weak-ass truck came with)



3)when did the hp really come on? (rpm,etc)

4) was it quite a smoke show?



5) THE MOST IMPORTANT ONE - was this the new or old program?



talk to you later!

 

[ThomasLawrence]

This proves that HP isn't really affected by the tq setting...

Yep... the torque setting controls fueling mainly in the 1200-1600RPM range. At 2900RPM, no additional fuel is added based on the torque setting, as you found out with identical numbers.



Your results are pretty close to what I got as well - I had some intake restrictions that kept me from making more power (those have since been eliminated, and I'm due for another dyno run). The real question is, what were your EGT's, and even more importantly, what are your EGT's on the street at those power levels?

1) why no torque reading?

Tomeygun - probably no torque reading because they didn't have a tach signal. Usually on diesels, you have to put something on the crank pulley (either a magnetic strip or a reflective strip), and mount a sensor to count the revolutions. Some dyno operators don't realize that with the common rail trucks, you can just hook the inductive pickup to an injector wire, just like you do to a spark plug wire on a gasser, and read RPMs that way. If the pickup is sensitive enough (the one on the Dynojet I used was), it will sense the injector firing.



-Tom

 

[DKiesewetter]

1) why no torque reading?

2)have you slipped your clutch yet? (makes me feel real dumb that i jumped so fast and put a CON-OFE in mine, albeit it is a 13 inch, not the factory 12'er that my weak-ass truck came with)

3)when did the hp really come on? (rpm,etc)

4) was it quite a smoke show?

5) THE MOST IMPORTANT ONE - was this the new or old program?

Here we go...



1) No torque reading for the same reason Tom posted... but now that I know his little trick i won't have the guys spend hours trying to get the pickup tag to read off the balancer.



2) I have slipped my clutch royally when trying to race from lights and a couple of times while driving down the freeway at 90+ on setting 9. I was under the impression that all 3rd gens had 13" flywheels already... at least the 6 speeds. I know mine does.



3) HP hits at 1500 RPMs or so, and then again at 2900. Two distinct jumps in the curve with smooth building in between.



4) on setting 9 it was a pretty good smoke show, but not as much as i want after I throw some injectors in it. I blacked out a good portion of their shop.



5)It's the new program...



Doug

 

[DKiesewetter]

The real question is, what were your EGT's, and even more importantly, what are your EGT's on the street at those power levels?





-Tom

I don't think EGT's on the dyno are very constructive as it's such a short run... but They never peaked 1300.



On the street... well I run at 8/4 quite a bit... I I try to run from 0-85 I am nuzzling the 1600* mark... If I back out around 70 and come in slow and strong i can keep the EGT's below 1400*. I am usually only working in short bursts playing around... but racing i regularly see 1400.



BTW- CHad AKA:Camp... I am not sure That any of this power is towing usuable until I drop some twins onto the truck.



Doug

 

[Tomeygun]

wow, just wow...



Well that settles the old-vs-new program debate of power, I was hold on to my tst box because i was worried that the new program was a bit weak... but 184hp is not weak at all



i think i will dyno both hp and torque before the new program, and then after



cya



ps - my 5-spd had the 12 inch clutch, all 6-spd have the larger 13 inch clutch

 

[Sledneck]

I wonder how my lowley 305/555 would do with a TST box,(the one without gauges)

I have an EGT already.

 

[ThomasLawrence]

Doug,

I I try to run from 0-85 I am nuzzling the 1600* mark

Yeah - getting into the danger zone with the stock turbo. Be careful



Tomeygun,

I was hold on to my tst box because i was worried that the new program was a bit weak... but 184hp is not weak at all

I don't know for sure, but I suspect the new program begins additional fueling based on torque at around 1200RPM, peaking at around 1800RPM, and starts decaying immediately. The old program started fueling at 900RPM, peaked at 1200RPM, and decayed at 1600RPM. Obviously, the higher the TE value, the higher the peak fueling. This would keep the peak torque the same, yet be less aggressive on the bottom end, and nicer to the parts of owners with lead-encased footwear



Sledneck,

I wonder how my lowley 305/555 would do with a TST box,(the one without gauges) I have an EGT already.

Probably real close to what mine did with one With just a TST, expect about 400HP at the wheels. As for getting the box without gauges, yes, you can do that, but you give up the automatic defueling capability. If you're going to run the stock turbo, you want a boost gauge as well, because the stocker isn't very forgiving of high boost levels. You can always move your existing EGT gauge to the downpipe, so you can monitor both pre and post-turbo EGTs (I use my post-turbo EGT for shutdown purposes)



-Tom

 

[Floor It]

I dynoed last monday and got 530 hp and 947 TQ, I had the TQ settings set low.



John

 

[Gypsyman]

Floor It,



How is the B1-04 holding with the TST? What kind of boost numbers are you seeing with it? I've been waiting on mine for 6 weeks and still no lead time! This is getting old...



-Richard

 

[Floor It]

So far so good,I have the wastegated version and with it unhooked I can get to 60lbs and with the wastegate hooked up it goes to 52lbs (the wastegate is set at 45lbs but blows right on buy that a bit). Some of the parts to make this turbo are hard to get but is worth it. Ken is now building a bigger single for me, still not enough air.



John

 

[DKiesewetter]

Ken is now building a bigger single for me, still not enough air.



John

What kind of EGT's are you pushing... and why do you say it's not enough air? I figured at 60 Psi you'de have plenty of boost... . just not enough flow? High EGT's? I have been thinking of going with twins to fix my EGt's, but if i find a single that keeps me cool enough I'll run it.



Doug

 

[Floor It]

The smoke never even comes close to clearing up and EGT's are still over 1800 deg on a sled run. At 60lbs it starts to super heat the air so I need more cfm not boost. I would go to twins but in the class that I pull in they only let you run one turbo.



John

 

[Gypsyman]

I noticed in your sig that you have the QS version of the B-1. I have the B1-04 non quick spool on order. Supposedly it has a "looser" exhaust housing. Thanks for the numbers and straight talk on your mods.



-Richard

 

[banshee]

Just some friendly advice... stay away from the larger exhaust housings on these CR motors. They will really sap the low end & throttle snappiness at low RPMs due to the way the ECM fuels. They will make big power on a dyno and when spooled up, but drivability will suffer.



John

 

[Gypsyman]

At this point this is my only option without losing my turbo mounted Jacobs. I'm keeping my fingers crossed and I'll give a towing report if the d@mn thing ever shows up!



-Richard

 

[Tomeygun]

The smoke never even comes close to clearing up and EGT's are still over 1800 deg on a sled run. At 60lbs it starts to super heat the air so I need more cfm not boost. I would go to twins but in the class that I pull in they only let you run one turbo.



John

1800 deg :--) :--) :--)



I think i would faint if i saw 1800 on my gauge... but I bet that thing smoke like a train



And this is with the tst box on what level, 9/9?

 

[Floor It]

The TST box was on 4/4, and edge on 4. The dyno showed less power on any setting higher.



John