50hp. DDP's With Smarty Jr?

[BDaugherty]

It seems that this post has taken a turn away from the injector nozzles and toward how the transmission will handle the extra power.



I have only 1 comment on the 50 DDP's: It seems to me that if you didn't like the smoke from the higher setting on the Smarty JR, you may not like the smoke from the nozzles. I know they are only a small amount larger than stock, but if you are trying to keep smoke to a minimum, nozzles of any kind may not be for you. Just my $0. 02

 

[Wingate]

It seems that this post has taken a turn away from the injector nozzles and toward how the transmission will handle the extra power.



I have only 1 comment on the 50 DDP's: It seems to me that if you didn't like the smoke from the higher setting on the Smarty JR, you may not like the smoke from the nozzles. I know they are only a small amount larger than stock, but if you are trying to keep smoke to a minimum, nozzles of any kind may not be for you. Just my $0. 02

I feel like I am at the edge of a slippery slope with these performance mods... It started when I bought the nozzles..... After I got them, I was able to resist the urge to hurry un and install them since it would take me all day to put them in... I'm usually busy doing other stuff and I never drive the truck. . So, my truck stayed stock.

Then the Jr has came along with its ease of tweaking the software, and now here I am, standing at the edge of that slippery slope( actually like a friggin' cliff!!)

BDaugherty, you are correct that I did not like the soot on my TT. . I am thinking that if/when I ever put the nozzles in, If I could not get the Jr. to help clean up the smoke, maybe I could swap out the turbo or add a second turbo the get some more air at low rpm to help clean it up. . did I mention I think I'm fixing to jump off a cliff with the mods... HP is like a drug...



FWIW, I also have a complete Jacobs exhaust brake kit sitting in the floor of a spare room in our home right beside the nozzles. . and its about the same age as the nozzles. .

 

[AH64ID]

FWIW, I also have a complete Jacobs exhaust brake kit sitting in the floor of a spare room in our home right beside the nozzles. . and its about the same age as the nozzles. .

There isn't a single good reason not to install that, after one trip with it you will kick yourself for having waited so long.



It's a bit flatter where you are, but around here towing without one is scary compared to with one.







As far as soot get a turndown tail pipe.

 

[BDaugherty]

Regarding smoke and turbos: i think most of the smoke comes during spool up, so changing turbos will probably make it worse since there probably aren't many bigger turbos that spool faster than stock. That said, I installed my 50hp bosch motorsports injectors last night. Total install from removal to test drive was about 4 hours including checking/setting valve lash. I can't believe the difference it made. It's like a new truck. My new favorite daily driving setting is TST on timing only and let the injectors do the rest. Best $2200 I ever spent.



One last comment... you could probably step up from the JR to the full featured Smarty to get more tuning options to minimize smoke.

 

[steved]

I had 40HP Flux Is before I bought a Smarty JR... it smoked badly running the towing setting. I hated it... almost sold it. MADS offered updated software for the JR, so I installed it... night and day difference. Its actually quite hard to make it do more than a single puff between gears (unless you purposely lug hard).



Point is... make sure you're running current/updated software in your Smarty... I'm running revision 1. 10 (I think), I started with 1. 08; I don't even know what they are up to currently...



BTW, if your concerned about soot on your trailer... a turn down could be your answer, it solved my soot problems.

 

[AH64ID]

Regarding smoke and turbos: i think most of the smoke comes during spool up, so changing turbos will probably make it worse since there probably aren't many bigger turbos that spool faster than stock.

Yes, the Smarty Jr smoke is pre-boost smoke. It's something that should be able to be tuned around, but it hasn't happened yet.



There are a few turbo's that will reduce the smoke, but not eliminate it. I have much less low-boost smoke with my Garrett, but if I not careful when towing I can still roll some coal (especially at 6K feet and up), but under normal driving its hardly a puff anymore.

One last comment... you could probably step up from the JR to the full featured Smarty to get more tuning options to minimize smoke.

The Jr actually has better options for eliminating low-boost smoke.

 

[Wingate]

There isn't a single good reason not to install that, after one trip with it you will kick yourself for having waited so long.



.

except for my laziness... :-laf

Actually. . after I bought the Jacobs... I started hearing more about the PBXR from pacbrake...

I should have returned the Jacobs when I could have and bought the PBXR. . but I didn't... So here it sits.

 

[AH64ID]

The PXRB does have a little more power at lower rpms, but above 2500 they are all the same. . you own it, may as well use it!

 

[CKelley1]

ah64id they are not the same above 2500 rpm, we have several 06's three had jakes others have bd's. big difference between them. the jake is old style technology, the bd and pac have the same brake hp. if you install the jake keep the stock belt with you. the pump has two high failure problems. if the diaphgram fails you only loose braking but when the pump fails it locks the pump up and burns the serpentine belt into before you can get stoped. and it will do it in the worst possible place and time. if you are lucky the belt just breaks but sometimes it get's into the fan and takes the radiator out. we no longer have jakes on our 06's. if you have not already installed it. sell it and get a bd

 

[AH64ID]

ah64id they are not the same above 2500 rpm, we have several 06's three had jakes others have bd's. big difference between them.

If the BD has more braking power above 2500 then it has an issue with its pressure regulator. The Jake hits 60 psi at 2500 (that's at 3 K feet, it's lower at sea level and higher at higher elevation), and that is the max the motor can have with OEM valve springs. Since the retarding power comes from back pressure and rpms the braking is equal. 60 psi at 2500 rpms is the same retarding hp on a Jake, BD, PXRB, or a potato in the tail pipe.

Personally if I didn't have a Jake I would get a PXRB, I don't like the way BD regulates pressure. It routes exhaust thru a small tube to keep the back pressure at 60# or lower (BD literature says 65#, I have seen 63# with my Jake). If that plugs you can easily over pressurize your system. Anyone that has ran a drive pressure gauge for a few thousand miles can tell you that line will plug.

Are you running back pressure gauges to verify your BD isn't providing too much back pressure, and thus why it feels stronger?

 

[Wingate]

If the BD has more braking power above 2500 then it has an issue with its pressure regulator. The Jake hits 60 psi at 2500 (that's at 3 K feet, it's lower at sea level and higher at higher elevation), and that is the max the motor can have with OEM valve springs. Since the retarding power comes from back pressure and rpms the braking is equal. 60 psi at 2500 rpms is the same retarding hp on a Jake, BD, PXRB, or a potato in the tail pipe.



Personally if I didn't have a Jake I would get a PXRB, I don't like the way BD regulates pressure. It routes exhaust thru a small tube to keep the back pressure at 60# or lower (BD literature says 65#, I have seen 63# with my Jake). If that plugs you can easily over pressurize your system. Anyone that has ran a drive pressure gauge for a few thousand miles can tell you that line will plug.



Are you running back pressure gauges to verify your BD isn't providing too much back pressure, and thus why it feels stronger?

These converstions is why my Jacobs is still sitting in the floor!!. I absolutely HATE working on something on the side of the road. . I also refuse to carry spare parts with me. I finally broke down and put a spare fuel filter and a cresent wrench under the seat, but I actually hate having it with me. .

 

[HBarlow]

Wingate,

The criticism of the Jacobs Exhaust Brake for the HPCR engines is far worse than the product.

I had a Jacobs on my '01 that lasted 325k miles when I owned it and still works now at 365k. I did replace a vacuum solenoid valve once.

I ran one on an '06 230k miles before I sold it. I replaced one Carter vacuum pump. It simply quit working. I never experienced a catastrophic failure that locked down the drive belt, blew up the engine, ripped the radiator to shreds, and caused a total eclipse of the sun.

If someone prefers another brand it is their right and privilege to own another but the outrageous claims of how bad the Jacobs is are simply false.

 

[Wingate]

Wingate,



The criticism of the Jacobs Exhaust Brake for the HPCR engines is far worse than the product.



I had a Jacobs on my '01 that lasted 325k miles when I owned it and still works now at 365k. I did replace a vacuum solenoid valve once.



I ran one on an '06 230k miles before I sold it. I replaced one Carter vacuum pump. It simply quit working. I never experienced a catastrophic failure that locked down the drive belt, blew up the engine, ripped the radiator to shreds, and caused a total eclipse of the sun.



If someone prefers another brand it is their right and privilege to own another but the outrageous claims of how bad the Jacobs is are simply false.

Harvey,



I know... but it seemed that almost every time I got wound up about installing it, I would get on here and read about somebody replacing a vacuum pump or a belt that burnt off and left someone on the side of the road. . Then there were the guys that somehow the belt/pump/fan ended up in the cooler... I know things break, and even the factory tensioner pulley can wipe out the belt(just ask 7. 3L PSD owners), there just seem to be lots more cases of the Jacobs causing failures. .

While problems read about on-line are sometimes exagerated, where there is that much smoke, well...

And in the back of my mind, I have worried about the added stress put on the converter by installing the Jacobs. . But, thats another quest I am on right now, been doing some research on finding a good converter for my truck. I spoke with Dave Goerend about a year ago about what he suggested, but cannot remember what all he reccomended. Will be making that call again soon.

 

[AH64ID]

I agree with Harvey, there did seem to be a rash of bad pumps 3-4 years ago (or longer) but I don't recall the last time I read about one failing.

I have 65K miles on my pump and my dad has 80K miles on his and they both work fine. I will probably buy a spare this year, but that's how I am. . spare for just about anything that can give me grief. I also spend a lot of time miles from pavement and cell phone service with the family so a failure is a much bigger issue!

If your nervous then sell it, but I honestly don't think you will have any issues with it. There is always a negative to any product, the PXRB and BD can produce more back pressure than oil pressure which is something Cummins advises against.