Engine/Transmission (1998.5 - 2002) Heavy towers... questions please.

[rashwor]

I am thinking about getting some injectors. I tow heavy (20,000# + truck (7000#)). Can I run DD2s with a boost elbow and boost fooler and not have EGT problems? What can I expect with EGTs? Should I just go with DD1s?



The whole point is that I want to be able to tow heavy without having to back off on the count of EGTs getting out of hand. I also don't plan to do any turbo mods / upgrades.

 

[Barry]

Start with a set of guages. Then an EZ(it comes with the boost fooler and boost elbow) Then a 4" exhaust. If you still need more, then a set of DD1s. I have had an 00,01 and an 02. It works great. All the tow power you need and excellant EGT temps. Good luck!... ... ... . mi dos pesos.

 

[AC]

I tow about 15k worth of horses and gear around and have never been above 1100 on my EGT's. I tow over some pretty serious grades and have what I consider an excellent towing combination with my EZ and my DDII's.



AC

 

[FFutch]

I have no problems with my DD2's with big loads and steep grades. I usually run with the Comp off or down low... Doug

 

[rweis]

I run Comp 1x1 and DD2's. I think it is the best combination I have EVER run across. You can use all of the throttle if you need to. It lets the trubo spool up so you have boost.



I just think it is an EXCELLANT combination.



my . 02



Bob Weis

 

[AggieJustin]

I haven't had any EGT issues yet with an EZ on 3 and DD2s. Even with a 13K trailer, they only went as high as 1200.



JM

 

[rashwor]

Sounds like I will be in the market for 2s!

I already have a EZ and gauges installed. I have removed the stock muffler. I love it. If I can have more and tow the big loads, that sounds good. It sounds like what I should do is get 2s and set the EZ on the "Add fuel when boost is high" setting instead of where it is now "Add fuel all the time".

 

[PRout]

I have DD1's. Get the 2's or maybe even 3's.



The 1's are ok, but make you realize for a few bucks more you have more power available, and its all in how you control your foot.



Plus bigger injectors are easier on your pump than some other options.

 

[Greg Boardman-RIP]

Go with the DDII's. III's are too hot to tow as heavy as you want to. I hauled over 30,000 lbs at 65 mph with my 01. That had DDII's and Comp on 1x3.

 

[MCummings]

With an HX-35/12 (stock turbo), a PE COMP on 5x5, DD1's, Dirty Airfilter, and grossing around 33,000Pounds I hit 1,800*F twice, while accelerating WOT in 3rd and 4th gear. Both times the motor was over 2,700RPM (Drag COMP).



Just an FYI.



Merrick Cummings Jr



BTW: Now, with Mega Mental injectors, a PDR HX40/18, and the same COMP, I can hit 1600* under certain circumstances, but 90% of the time 1450* is the most I see. I have a Stage 1 PDR head and a PDR cam on the way to help out with the EGT.

 

[Sticks]

Originally posted by AC

I tow about 15k worth of horses and gear around and have never been above 1100 on my EGT's. I tow over some pretty serious grades and have what I consider an excellent towing combination with my EZ and my DDII's.



AC

At what speed were you able to go? What was the altitude?



I have the same question as raswor, but I have to contend with 7% grades for 20 odd miles, and a peak altitude of 10k feet. Is running at a speed of 55mph out of the question with your combination?

 

[JBlock]

rashwor middle setting

Rashwor



Your on the right track, using the middle or number one position on your EZ with the larger injectors. I am running mild injectors RV275 and I see a big differece with the comp 1x2 (extra fuel 10 psi) and 1x5 (extra fuel 0 psi). No wire, stock auto.



JB

 

[rashwor]

I think I will...

be ordering some 2s when I get ready. Thanks to everyone for your input.



Merrick, I have to pick at you a little... man, you know how to test a truck well!

 

[MCummings]

Yah,, Some people call me crazy, I consider my self a little south of Insane.



Here's some pictures.



http://www.laredoperformancediesel.com/custom.asp?id=53509&page=1



Believe it or not, with my '40 and DD5's I only see 1,100*F EGT doing donuts.



I've never sled pulled, but the trailer my Dad and I haul around at times can gross our trucks up to 40,000 Pounds at certain times,, don't worry, this isn't on the streets, it's off-road, very rough off-roads. When we are on the streets we usually only gross 27,000 pounds.



Merrick Cummings Jr