C-16 Dyno

Not bad for a C16.Too bad you don't have somebody to push that -77 up to around zero,might cool your egt's down a little. But according to the dyno probe,your ok there too.

 

I think we talked before about the gauge in problem. I have a western star that I had on the dyno for high exhaust temperature last Tuesday. I hooked up a Autometer pyro to confirm dash pyro, I found that the truck was 200 higher than the autometer. Customer complaint of 1200 during a pull. I have the proper pyro ordered from western star. It has a k type probe right now but w/s look up for the truck by serial number is different. W/S also has a small air to air cooler ( compaired to Peterbilt) You could measure the pressure drop across the cooler. It may be the turbo is working to hard trying to push high boost through that air to air. there is a test port on the outlet elbow of the cold side of the turbo.

I got your email with dyno result. Your fuel is over spec at 1200 and 1400 but should not be an issue. Boost is a little low for the fuel flow. It is to bad that they did not put 0/0 in to see the difference. Do you have 5232 or are they stock injector numbers? I will be posting results of a back to back dyno run on a mbn to 6nz flash file change soon, just to busy at work right now to get it on here.

 

Dyno looks perfect, thats a strong stock C-16 Shaun.

 

Do you know where i can get a 7CZ computer for my MBN and anything else to make it run ?

 

You can get any used 70 pin ecm from a c15 and it can be flashed to a 7CZ. Its easier than trying to find a 7CZ ecm.

 

Get somebody to change your injector codes to 5232.MBN responds very well to that.But then you still have a $##%$ mbn.Also some MBN have trim files,never saw any with em though,but if you have a 4 digit number for the injector calibration and change that to 5232 your good to go.

 

I have also never seen a MBN with trim files, the injector part number seems to be the same for all MBN's. If the part number of the injector is the same for all, I do not see how they could have trim files?

216-7225 PUMP GP-FUEL INJECTION
S/N MBN1-30210

 

The trim file does the same thing as the code does,tells the ecm how long to keep the solenoid energized,and also that is how they get the multiple injections on an acert.I think Cat went to trim files to get away from 5232 codes,but I think I have found a way around that too.Never tried it yet though.There is also an early bxs that used that injection pump group.