or maybe to much truck. with the 9 speed and the 22.5s , which i thought the 4.44 gears would help.

 

Turbo is too big.
Do you have any options for turbine housing size? Going down a notch would give you earlier spool and more boost, both of which will cool EGT's.
But I'm not familiar with that turbo so I don't know which options are available.

 

I have two trucks with pretty much the same set up 8000# empty, plenty of fuel and hx 40 turbo (I think is the same as super b) spools as fast as you push down the pedel, when i first installed everything the boost was over 45 psi and had to adjust the boost elbow screw to get it down some, you might try that to raise it a little

Bob

 

thats kind of what i thought, but i've had a few guys say that moch fuel should work with that turbo. it also seems like my motor revs slower than others, at idle when i rev it up it will spuder some.

 

put a 74 or 75mm S400 under the super b. EGT problem solved!!! Now seriously, I think I've read over on the cummins forum that the super b's tend to be a bit hotter then other comparably sized turbos, especially when towing. Isn't it a 65mm comp wheel?? Now, me personally, I don't think I would want to tow with a single turbo that's bigger then 62mm. Seems like the trucks get really fussy when your running more fuel for a bigger turbo and try to tow with em.

 

Towing and big turbos is a bad mix.

 

x2. If you want to tow and want big power, twins is the only way to go!!!

 

Your problem is the Super B "special" The special was built for single turbo truck pulling comp. It needs huge amounts of fuel Oringed heads ext. For pulling loads on the hwy. You need a plain old Super B. I run one on my Dodge duelly with the fuel set at 400 hp at the rear wheels. When loaded up my truck weighs close to 16,000 lbs. And nothing but the really long hills in high gear will get the EGT up much more than 1150. And for pulling I would set the timing back to 15.5 deg. With it set at 17 deg. with the fuel and turbo you are using You are asking for a blown head gasket. Hope this helps Bill