Attention: TDR Forum Junkies Boatman, A complete 4" exhaust system will lower your EGT at least 200 degrees at that RPM.
Also if you keep your RPM below 2500 it will not be as much of a problem.
The engine is most efficient between 1900 and 2500 RPM, above that the cylinder head and turbo begin to get backed up with exhaust heat.
A larger turbine housing will help a little at the higher rpms but performance will suffer below 2500.
I Know you don't want to give up torque!
Ted Jannetty
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Ted Jannetty, Owner President Jannetty Racing Enterprises Inc.
97 3500 4x4 club cab 5spd. RED, JRE stage 3 power kit, JRE 4" exhaust
JRE 1/2 inch fuel system, Cummins 370 hp injectors, Prime loc,
Cummins chrome kit, US Gear 20% over drive, 3. 54 posi, Autometer
gauges, boost, and Pyrometer, BD exhaust brake.
97 Ski-Doo 670 turbocharged
99 Honda Forman 450 ES
Also if you keep your RPM below 2500 it will not be as much of a problem.
The engine is most efficient between 1900 and 2500 RPM, above that the cylinder head and turbo begin to get backed up with exhaust heat.
A larger turbine housing will help a little at the higher rpms but performance will suffer below 2500.
I Know you don't want to give up torque!
Ted Jannetty
------------------
Ted Jannetty, Owner President Jannetty Racing Enterprises Inc.
97 3500 4x4 club cab 5spd. RED, JRE stage 3 power kit, JRE 4" exhaust
JRE 1/2 inch fuel system, Cummins 370 hp injectors, Prime loc,
Cummins chrome kit, US Gear 20% over drive, 3. 54 posi, Autometer
gauges, boost, and Pyrometer, BD exhaust brake.
97 Ski-Doo 670 turbocharged
99 Honda Forman 450 ES
