Engine/Transmission (1998.5 - 2002) E-brake effect on EGT's?

[Roger rodbolt]

Originally posted by 85CJ

Speakin' of housings, I understand the bigger housings flow more hence lower EGT's but how much slower is the spool up?

Spool up is progressively slower with each larger housing. Heavier fueling off idle will make up some of the difference but the Sierra Club gets :{.

 

[Roger rodbolt]

Originally posted by muddymess

could ya spray the heck out of it w/ wd40 and preserve it. i sold my pac and ordered a bd remote as i went to a pdr40. steves post has me worried now as i drive in mud often and wonder if mud will play heck w/ the brake, as well as the various substances they spray on the roads in the winter.



after havin an e-brake for the past few years im not enjoying going w/o one while i wait to get the bd from piers and install it.

Muddymess,

I mount the inline brakes back from the engine, about middle of the truck and turn the vacumn actuator up toward the body and frame. You could put a shield fore and aft of the unit if splash were a problem but I've not seen any corrosion or sign of splash. Look carefully under your truck an see where the road gook collects and avoid those locations. I carefully mounted a air compressor/tank system under the driver's side of my personal truck and it's doing well too. Good luck with your new brake. Larry

 

[DEZLPWR]

Originally posted by Roger rodbolt

Heavier fueling off idle will make up some of the difference but the Sierra Club gets :{.

What's wrong with making them mad? Freakin' wackos!#@$%! #@$%!

 

[jmeehan]

Originally posted by DEZLPWR

What's wrong with making them mad? Freakin' wackos!#@$%! #@$%!

I like the way you think DEZLPWR!



One of my favorite bumper stickers:

Are you an environmentalist or do you work for a living?

 

[CFAR]

Originally posted by roadranger

I just put an E-brake on this past June.



Installing dealer called it a Pac Brake, but it says Jacobs on it



Dealer said Jacobs bought out Pac Brake



This brake has the wire connected to the ECM which delays e-brake application for about 2 seconds- thought this was a Jacobs feature



ANYWAY, I tow across the Rocky Mountains with a GCW of 18,000 running an EZ box on a HO with a BHAF and stock exhaust... ...

I see a 100 to 125 degree increase in EGT's pulling uphill hard ever since the e-brake install.



Think a 4 in exhaust will help???

sounds like my jake, I thought the since the brake is applied with vaccuum, the 2 sec delay was just the butterfly closing, the wire to the ecm connector will tell the relay to open or close depending on if you are on the pedal or not. on the pedal would be closed, off the pedal would be open.



Did you have it installed at a DC dealer, cause if you did it is a jake, as far as I know thats the only one they sell. Did they install a rocker switch below and to the right of your ashtray, orange light? again jake.

I have the install instructions, hard copy, since I installed mine myself, if anyone is interested.



Woody

 

[Ron Bissett]

Originally posted by Roger rodbolt

Ron,

Okay, I know that a lot of guys say that size doesn't matter . If a short restriction doesn't affect flow then why the huge difference in drive pressure between housings on a HEX35. Try a 12cm, 14cm, 16cm, 18cm, and 21cm. I have all of them and there is a linear change. LC

answer Bigger fan blades more air to compress and on drive side bigger blade more work preformed . when not using a larger fan to do work and just the regular oem turbo and pipe the short restriction is all most nil Ron in Louisville ky:-{}

 

[DEZLPWR]

Originally posted by 85CJ

I like the way you think DEZLPWR!



One of my favorite bumper stickers:

Are you an environmentalist or do you work for a living?

LMAO! Seriously, where do I get one of those bumper stickers?:-laf There are a ton of them enviro-wackos here in the wonderfully liberal "Evergreen State"! :{ :{

 

[Roger rodbolt]

Originally posted by Ron Bissett

answer Bigger fan blades more air to compress and on drive side bigger blade more work preformed . when not using a larger fan to do work and just the regular oem turbo and pipe the short restriction is all most nil Ron in Louisville ky:-{}

Ron, I'm not doing any of this :-{} but what are you saying? The "fan blade" or compressor wheel is the same size in my example. If you change the exhaust housing, it doesn't change any of the moving parts. Larry

 

[jmeehan]

DEZLPWR,

I don't know where to find one of those stickers, I saw it on the back of an old beat up pickup, next to one that said:



Earth first, we'll log the rest of the planets later.



I suspect the owner was an out of work logger.

Loggers are getting to be an endangered species you know.

 

[Ron Bissett]

Originally posted by Roger rodbolt

Ron, I'm not doing any of this :-{} but what are you saying? The "fan blade" or compressor wheel is the same size in my example. If you change the exhaust housing, it doesn't change any of the moving parts. Larry

Sorry Larry I did not know that the compresser wheel stade the same ,In that case the psi would build up to the point the housing would let the gas out under pressure and the speed of the gas would increase removing extra heat from the turbo . With a larger mass (housing ) more will be lost to Air through convection . Best way to control heat is to let up on the go pedle ,If not in a race or control cost $ Inportant to us old timers . Thanks larry that is how we learn things lol Ron in Louisville KY

 

[CFAR]

Well the Bully Dog III's are installed, not much difference in EGT's unloaded, haven't hauled anything of yet. I can push EGT's up to 1200 WOT. No clutch problems of yet. I have a Comp that I will install, maybe this weekend, and will post EGT's after.





Woody