Who's going to spring for Pacbrakes Engine Brake?

[HEMI®Dart]

P67 LoadLeash

 

[KLauber]

I will be glad to road test one for them!!

 

[MA2LA]

The review I saw looks sweet but what's the cost?

 

[HEMI®Dart]

$250 off June/July

P-67 LoadLeash



$1810 price does not include labor

 

[SPucillo]

I am not touching it until someone can explain how it works in detail. You can't just hold the valve down and let the push rod just flop around! And then what, just drop the rocker back down on the cam and push rod?

I am interested in seeing someone else test it on their truck and report back.

 

[HBarlow]

I looked at the photos in the recent TDR and I still remain clueless.

I wouldn't go near that contraption until I can read a dozen reports from hotshot haulers or RV transporters who have run one 150-200k miles with success.

 

[HEMI®Dart]

Would it be an accurate assumption that the engine brake would be would be much more effective than an exhaust brake?

 

[HBarlow]

No one knows. As far as I know no one has ever built or installed one before this new design was introduced.

The exhaust brake is a simple device that is completely external and after the 12 valve engines have 60 psi exhaust brake springs installed to hold a closed valve closed against the brake, every component of a Cummins engine is fully capable of hundreds of thousands of miles of service with an exhaust brake installed.

Someone may know but I have no idea what is effected by the engine brake for an ISB engines or what kind of unexpected wear or damage might result.

My short opinion regarding the engine brake is no thanks.

 

[BIGNASTY]

I took a look at that in one of my Mag's. It made me wonder if it is the same kind of Jake break principle that I had on my BigCam Cummins it was a 401C jake brake not an exhaust break but worked on the rocker box of the motor. If it works anywhere near what it did on the BIG Cam that's the ticket. Its got to be better than the stick a potato up the exhaust pipe kind thats all the exhaust breaks really are.

 

[DieselLady]

I don't get why we even need more braking power. My e brake in the trubo works way better than any bolt on e brake ever did. Just seems like the AVERAGE person doesn't need that much. Towing my big 35 foot 5th wheel It almost slows me down too much.

 

[cerberusiam]

My short opinion regarding the engine brake is no thanks.

Oh lord, I needed a laugh today! :-laf:-laf



Operators everywhere are rolling on the floor in glee This NEEDS to be a sticky.

It made me wonder if it is the same kind of Jake break principle that I had on my BigCam Cummins

Same concept, same design, same efficacy. About 2/3 of rated HP in retarding capability. The integrated ones were capable of 100% rated HP retarding.



The engine is turned into an air pump with the exhaust valve being just cracked open at TDC. No fuel, no combustion, just like a big air compressor dragging the truck to a stop.



I wonder if it will fit the 5. 9's?

 

[BIGNASTY]

I looked at the photos in the recent TDR and I still remain clueless.



I wouldn't go near that contraption until I can read a dozen reports from hotshot haulers or RV transporters who have run one 150-200k miles with success.

The first part of the post comes as no SURPISE to anyone that has read any of the posts made about any mechanical part from you. The second part is a :-laf:-laf:-laf:-laf



ENOUGH SAID EXCEPET :-laf:-laf:-laf:-laf



Old style Jakes were and still are LIGHT YEARS AHEAD of any exhaust brake. But YOU WOULD HAVE TO DRIVE OR HAVE THE ABLITY TO HAVE DRIVEN ONE TO FIGURE IT OUT.

 

[BIGNASTY]

PULLING rv's is NOT truck driving Ok!!! What a Republican

 

[BIGNASTY]

I don't get why we even need more braking power. My e brake in the trubo works way better than any bolt on e brake ever did. Just seems like the AVERAGE person doesn't need that much. Towing my big 35 foot 5th wheel It almost slows me down too much.

DieselLady I see your from Palmdale Ca. In pulling your 5th wheel you have more than likely gone over the grape vine or tehachapi pass or Sherman and Conway summit in Ca. I dont know if you have encountered anything like Eisenhower Pass in Co or some of the other steeper roads of the west. But I dont think one could have TO MUCH on those kinds of hills. JMO.

 

[BIGNASTY]

Cerb



Barlow is not worth your time to read and reply. He is probably

drunk in the evenings and just uneducated and uninformed the rest of the day. Fantasizes about driving trucks down the highway with Willy Nelson blasting ON THE ROAD AGAIN on the stereo. Gets his fuel for the RV at truck stops so as to make him feel like he's ONE OF THE BIG BOY'S. Ya life on the road must have really been a B**** when your pullin a 8K RV :-laf

 

[NIsaacs]

My e brake in the trubo works way better than any bolt on e brake ever did.



I don't have a 6. 7 with the integrated brake but based on retarding HP specs they are rated less than the PRXB and BD brakes. They would have to work awesome to hold back more than my '01 with a BD.



Nick

 

[HBarlow]

Nick,

Advertising hype fregently is not proven by highway performance. You might be surprised how well the VGT brake works on a 6. 7 in a truck with Aisin and 4. 10 gears.

 

[NIsaacs]

Nick,



Advertising hype fregently is not proven by highway performance. You might be surprised how well the VGT brake works on a 6. 7 in a truck with Aisin and 4. 10 gears.

Harvey,



You are exactly right, advertising can be manipulated and I have never driven one but I still kinda doubt that it is better in the retarding HP than some of the aftermarket ones. I also understand that they (aftermarket) are not all created equal.



Nick

 

[CKelley1]

the new pac brake works very different than the engine brake or the exhaust brake. it uses some of the same parts as the engine brake as far as the oil portion go's. on the bridge a arm was added and when the brake is applied a oil solenoid holds one of the two exhaust valves open about 0. 010, this forces the engine to compress the air only to have it excape. the vgt does two things, first it compresses more air to the engine and maintains 60 psi back pressure. the oil solenoids look like and i think are stock from the big engines and the electric solenoid also. the brake works way better than expected. because it works with the vgt, it will not give the braking power to a fixed geometry turbo like the 5. 9 has. if you pull anything with a 6. 7 it is well worth the addition. it looks to be about 2" thick and fits underneath the valve cover. the exhaust valve bridges is the only component change made to the engine

 

[DieselLady]

DieselLady I see your from Palmdale Ca. In pulling your 5th wheel you have more than likely gone over the grape vine or tehachapi pass or Sherman and Conway summit in Ca. I dont know if you have encountered anything like Eisenhower Pass in Co or some of the other steeper roads of the west. But I dont think one could have TO MUCH on those kinds of hills. JMO.

I do understand. I have been over Eisenhower quite often. Even pulling a flat bed with a wrecked truck on the back. You are right. You can't have TOO MUCH Stopping power, especially when hauling large loads. But I do find that when I am hauling my 5th wheel over the Grapevine, Tehachapi pass and even Baker Grade,,,,, 13 miles of climbing and then all down hill to Vegas,,,, I find that I will take the truck out of tow haul because I end up going 40 mph. No need for me to go that slow. So for the average person, I really think the Ebrake int the VGT turbo is awesome. Way better than the old 99 dodge with a Pac or BD brake.
I do have a friend that hauls 32k+ lbs to the tune of around 165k miles a year. He would probably LOVE IT!!! :-laf