![]() Ps replacement muffler was a Redback sports unit. Personally, I would forget the 3" system (heard a lot of people say they lost mid torque, which is just what you don't want for normal driving/towing at 2000-2300rpm ), spend $300 to replace the muffler and the rest for some basic instrumentation so you can use your chip to it's max (safe) capability. It's up to the individual, but I won't gamble my engine for a few extra ponies. ![]() You can't use the extra fuel a chip supplies unless you can get the air in there to burn it with (ie the exhaust gases out). Isuzu D-Max 100Nm increase with DPCHIP-X 1,938 views DPCHIP-X controls fuel injection, boost and much more allowing a complete custom tune without the hassles of remapping. As I said, the biggest difference was replacing the stock muffler, I used to cruise (towing 2T caravan) at about 600C EGT, now it sits closer to 500C and I can roll over hills in 4th that used to require an early downshift due high EGT. I don't think EGT even features in the OBDII data stream on later vehicles. A dyno will tell you what power/tq you are making, but can't tell you what is going on inside. IMHO you can't dial in a chip (nor, apparently, a boost controller ) unless you have the data to see if you are harming your engine. EGT, boost and coolant temp I regard as a minimum, I also have oil pressure and coolant level alarm. Without proper instrumentation you are clueless as to what conditions your combustion chamber is seeing. The temp/time equation for failure cannot be predicted unless someone (and it ain't gonna be me!) tests one to destruction, so I operate conservatively at 10-11psi boost, max 720C EGT measured at turbine inlet and max 100C coolant temp at the exit of the cyl head. I can't say what EGT it hit, but prolonged high EGT is what will eventually affect the metallurgy in both pistons and head. I haven't blown an engine, just cracked a head after the boost hit 14+psi while I was dialling in a boost controller. Nice Gains inline with Towing needs, Engine Safety and Relaiabity. Simon02 KZJ95 with 120k on it at the time. TUNING AVAILABLE NOW Seen here is the latest 2021 Facelift Isuzu Dmax and MUX Tuning Results with DPCHIP-X Tuning Computer Platform. I appreciate you sharing your unfortunate experience of burning your engine while using a chip. T303, you seem to have had an experience burning your engine with a chip, can you share that experience ?, ie: what engine, what chip, how long it was installed prior to it burning your engine, how many kms on your vehicle, what model prado and what year.
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