Amen bro..

 

Yup its a diesel forum, not grammar school. Any way, i switched over to 4.4 today, not much power in 1st and 2nd gear, then it rips in 3rd and up. Kind of odd. I need to tow with it now to see how it runs. Thanks for all the helpful replies. Curious to see what the super revo is!

 

this is all simple stuff that maybe you havent checked and can help lower egts and strain on the engine... check the airfilter, check tire pressure on trailer and truck, make sure no brakes are sticking including trailer, the higher the profile the trailer the more air resistance which believe it or not is a ton of force. When i was towing my toyhauler up a grade i was seeing about 150-200 more egts just because the tires where a little bit low

just my two cents

 

Checked all that stuff man, but thanks. The trailer is pretty dam tall. So that has something to do with it. I think the main thing is the tune. To much fuel. I have to see how the 4.4 does. Does anyone think that the 4.4 on level 7 is to much power?

 

There isn't a whole lot of difference between sw2 through sw9 on 4.4. A little, not a lot. So if your clutch can take it, and your egts are ok, then fine.

Bottom line is, regardless of what tune or tuner you use, you'll have to drop down to where the combo of power and load allows to tow with manageable temps.

 

Well said sir..

 

Sounds good man. Thanks. Will I be ok towing for a long time with egt's around 1300 for long periods? Or should I try to keep it well under that? I have heard something about someone talking about a coolant by pass for cylinders 5 and 6. What is this? I have heard of these being a problem. Thanks for your help

 

You're not going to need that. That is a high HP/high rpm remedy. You are best off with a good water injection system. About the same money.

 

Also, with the 03 - 04 engines 1300 for short periods is ok, 1250* sustained is better. The heads in those years were subject to valve seats that liked to drop with high temps. Get water!

 

I'll echo soulezoo.... Should be looking at sustained of no higher than 1250...

 

Looks like i'll be looking into water injection. How does everyone like the snow stage 2? Is water the best bang for the buck compared to a new intercooler?

 

I don't know if I would totally write off the Opie Bypass, there have been just as many guys blow the rear freeze plug above the tranny running stock and towing as there have been running pressure boxes, etc. While the pressure guys may be leading slightly in percentage over the non-pressure guys, a load is a load, temps rise, and the cooling system efficiency of the #5 and #6 cyls does have its drawbacks and effects.

I tow, tow heavy, and have watched temp gauge fluctuation along with higher EGT's, and I am running basically a stock engine with a few minor mods to intake air, intake horn flow, and exhaust flow with the ME.

I decided to install a better flowing exhaust manifold, installing the fabshop header this weekend. I plan to install the Opie bypass next weekend, it is due to arrive here on Tuesday. My EGT's have lowered considerably doing what I have done so far. The claims from many regarding a better flowing manifold and lowering EGT's more, to me, were/are well worth changing it out to something better flowing. As far as the Opie bypass, it also has merit regarding the issues being better resolved when it comes to what it does in coolant flow to those two rear cylinders. Ambient temps at the firewall are much higher than temps at the front of the block where the directional air comes into the engine compartment.



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