Engine/Transmission (1998.5 - 2002) jacobs 4 inch inline E-brake

[KKunz]

I want to put a jacobs 4 inch in line brake on my truck. I have the turbo mounted brake and Im going with twins and want to stay with the jacobs name. Does any one have a part # FOR TJUST THE BRAKE??? or who should I talke to to get one?

thanks

kris

 

[DBrickel]

US Gear makes a pretty good inline brake.

 

[KKunz]

there all nice but I like my jacobs alot

 

[Boondocker]

I think BD makes an inline e-brake, but I like my Jacobs a lot



For the sake of conversation, why do you ask?

I've been looking at turbo upgrades, but am quite limited by my desire to keep my elbow-mounted Jacobs e-brake. That's a cost consideration, besides the fact that I don't want to be without an exhaust brake.



Now if I could get some kind of 4" elbow retrofit to allow for the HX-40 size downpipe, my turbo options would be wide open. Keeping the stock-size elbow is truly a limiting factor. After some long talks with Shane at Industrial Injection, I think the hybrid route is best, given my existing e-brake requirement and modest HP ambition.



Neil

 

[KKunz]

right now i have a PDR hx40 with a 14cm hx35 exhaust housing im planing on going to twins because the hx35/40 will not keep me cool enought when towing in the mountains

 

[Froadin]

Actually, from my emails to Jacobs, we can just swap on the newer 4" turbo mounted ebrake as long as we have the larger exhaust housing like the 2004. 5 and newer have.



I started looking into this when I looked at the EB on my 2005, which is a Jacobs, and is 4".



So, it seems that we just need to get the brake itself from a 2004. 5/newer setup and put it on a larger turbo.

This lets us keep a turbo mounted brake, and have the 4" exhaust.

It doesn't help with the twin turbo issues though.



Btw, the only reason I haven't done this swap yet is the $ involved with buying a new turbo AND the brake itself (you don't need to buy all the extra stuff, just the eblow/brake).

Direct from Jacobs, ""The 2004. 5- 2006 exhaust brake assembly, alone, is available Through either Dodge, p/n 05139837AA, or Cummins, p/n 4089598. "".

I haven't even bothered to call for prices yet, as I can't afford the new turbo yet (thanks to the cost of my new HRVP44 ).

 

[Froadin]

KKunz, I forgot, you can email Jacobs for the part numbers you want. They are quite helpful and pretty fast to respond (at least they were for me).

They do have a nice 4" inline brake, but it isn't listed under the Dodge application. You have to look under medium duty B5. 9

And I think they will work with your current setup, just add more vacuum line and put inline like any other inline brake.

 

[Boondocker]

Froadin,



Thanks for the tip on the Jacobs 4" elbow. Of course modding the brake and getting a better turbo about doubles the cost over just a hybrid. But good stuff is a better value, even at a higher initial price.



KKunz,

Can you fill in your profile? My main aim is decreasing EGT while towing. I really have enough power to tow, I just have to throttle back to keep the exhaust temp in the green. Of course, I wouldn't mind being able to run a set of F1 Mach 4's



Neil

 

[Froadin]

Boondocker, Yeah, I agree that you get what you pay for.

I just need to figure out what I NEED to pay for!

If the hybrid would work for me, I would spend my money there.

But I would hate to spend the money, and still not have the effect I am after.

Like you, I am after lower EGTs while towing. I am simply after USABLE power.

Of course my HPVP44 changes my equation, and it makes it much harder for me to find out an answer without having to swap around turbos.

 

[KKunz]

do you know if the 4 inch turbo mount brake will work on all hx40 type down pipes?

 

[Froadin]

Just look at what is available for the 2004. 5 and newer trucks.

I am pretty sure all of those down pipes will work, but I didn't look into that closely.