Help with 2WS Cat making too much heat in W900L?

Holy Batman !, 800 hp on a 2WS, impressive. Bruce just posted an article on how hot cats get with manifolds and turbo's. Couple of things though, I would take Bruce's advice with some caution, but just me. The article is in this month's 10-4 magazine, can google and read on line. To pump a truck that much, i don't doubt you are melting the exhaust side. I would probably de-tune it a bit if it was my truck. I pull loads up to about a buck 75 with a 525 N-14, slightly bumped. Truck does fine, and at those weights I know I need to take it easy and not worried about being the first to the top of the hill. To get that truck to run correctly, you are going to end up putting about 10k in it.
New intake, exhaust manifold, different turbo, injectors etc., Or just re-flash to where you can find a happy medium. I vote for the re- flash but that is just me. Bet that thing is fun to drive until the melt down though.

 

Here's the remedies we have discovered for that power level, and it's still been a somewhat tough one. We have been putting a compound turbo set up on them, the acert factory compound turbos work well just need a few mounts and stuff and it will support the 800 hp. Also adding a bigger jwac cooler has helped. Of course the largest charge air cooler you can get. It sounds like the pyro heat is your main concern? We have noticed that when the tune is asking the injectors for more fuel than they can handle the heat goes way up. Maybe knock the tune down just a little and try it. We did a retune on a truck that was compound turbos huge inter cooler and a bunch of heating problems. We tuned it down to a 625 file the power of course went down a little but now he can run it pretty hard and not really have any issues and the pyro stays in check as well.

 

We have had pretty good luck with an 800 marine cam but keeping it cool and keeping the IAT manageable is nearly impossible on a hard pull, truck and motor were not designed for it and we have spent tons of money and time and just struggle with it at those horsepower levels.

 

Are you trying to cool the exhaust or coolant or what?

 

800hp or 800+ is cool and all but I don't know why anyone would want to deal with the added stress of driving something like that all the time. I can't imagine the egg shells you have to constantly walk on trying to feather it constantly to keep from breaking something. I'd throw in the towel and de-rate to 650 like these guys are suggesting. Even a good healthy mostly stock 550 CAT will walk all over 90% of what else is out there anyways and do it reliably without any stress.

 

That's a fact and I have talked many a guy into a 550 tune with a little tweak on the fls/fts settings and they were probably at the 600 or better and were really happy they could keep their foot in it and it would live a long life and be reliable. As far as out pulling most that's for certain, and more than you really need for most applications these days.

 

Do build this engine or buy it built up?

 

Are you running a PP box?