Cat Acert Pyro Temps?

MXS acert, post turbo. Highest I've seen my exhaust temp go to is around 1,000 on a hard pull. I am running a tune on mine so I do scan that gauge a lot.

Running down the road it ranges from 600-900 degrees.

When I get in some hills I do downshift a gear to rev up the rpm's, helps keep the exhaust temps down, even though the engine will pull it in the high gear.

 

Highest I have seen is a little over 800 2006 acert c15 cat 550 hp I pull 140,000 lbs through the mountains

 

950* to 1000* is the highest, but I start backing out a bit @ 950. May be apples to oranges though as I have B model mechanicals. Post turbo, and at elevations up to 10,000 ft. which I find has as much or more to do with exhaust temperatures than ambient temperature.

 

How's your pyro temps running? I was watching mine today with a load on going down a flat highway at 65 mph with a constant 20 turbo boost, it was hanging at 750. This is on a MXS.

 

You do realize that acerts lose close to 500* between pre and post turbo readings?

 

I know the exhaust would be running hotter pre turbo, I just didn't realize it was that much. Are the two turbos cooling more of the gasses before it hits the probe post turbo versus a single turbo engine? Is mine running too hot?

 

It may be closer to 400, I was thinking a friend of mine was seeing close to 500 drop between before and after.

There is more drop because of the two turbos, a single turbo engine may only see between 200-300 drop.

I myself would not want to see 1000 post turbo very often especially for an extended period of time.

 

Twin turbos you're most likely loosing 500+ degrees from the turbos and acert motors have steel pistons so prolonged temps of 1500+ in the cylinder head are normal.

 

No that is not normal, a factory 625 doesn't get much over 1300 in the manifold.