Where Do EGTs Turn Into $$$
#11
#12
Be CAREFUL with advanced timing and lots of fuel on the +04.5 trucks, the 3rd event and piston design causes some issues when you push the envelope.
Its not all about EGT's when you throw timing in the equation. It quite possible to melt a piston at under 1300 degrees with the right conditions. You have to be aware of the cylinder pressures and temp create by the timing and duration of the tune or it will not be a good day.
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jfoose (12-09-2009)
#13
#15
Depends on where you measure it at. Measured in the pan 20-30 degrees less, in the cooler return line 30-40 degrees less, in the hot line with the TC locked 10 degrees less, unlocked TC anywhere from 180-220. There is no hard figure for how much the temp should vary from coolant.
The only range that makes sense is 140-230 degrees because of the variations in use.
The only range that makes sense is 140-230 degrees because of the variations in use.
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jfoose (12-10-2009)
#16
If your pryo prob is in front of the turbo (mounted in your manifold not in the downpipe behind the turbo and if it is mounted in the down pipe your gauge will read anywhere from 200-300 degrees cooler than what your actual temperature is) then once you reach 1600 F and beyond on your gauge then you are causing engine damage and thus engine damage = $$$$ i hope this info helps!!
#18
#19
The CR engines run a lot hotter for emissions reasons and have the parts to handle it. Better valves, valve seats, exhaust manifolds, better piston cooling handle higher temps easily. The 600 series motors were tested by Cummins stock at 1400-1500 degrees and Cummins says it is fine, the earlier engines will run 1300-1400.
#20
The 1250 number is a safe range all the way back to the 12V's, You can run the 12V's up to 1500 for several minutes at a time without issues.
The CR engines run a lot hotter for emissions reasons and have the parts to handle it. Better valves, valve seats, exhaust manifolds, better piston cooling handle higher temps easily. The 600 series motors were tested by Cummins stock at 1400-1500 degrees and Cummins says it is fine, the earlier engines will run 1300-1400.
The CR engines run a lot hotter for emissions reasons and have the parts to handle it. Better valves, valve seats, exhaust manifolds, better piston cooling handle higher temps easily. The 600 series motors were tested by Cummins stock at 1400-1500 degrees and Cummins says it is fine, the earlier engines will run 1300-1400.