Manhart ECU Remapping p400 to 512 HP
3rd Gear
Joined: Sep 2022
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This YouTube video does a very good job of describing the differences between a tuning box and an ECU remap.
The tuning box fools some of the engine signals to the ECU by vampiring two ( or a few ) connections in between them. This may increase HP and torque a bit unevenly. The problem is by lying about vehicle telemetry for only fuel sensor and boost sensor ( or some other sensor ) , the ECU is making decisions on only a few of the many inputs it has, this can cause inconsistencies and will cause the ECU to increase boost for instance but not tell other parts of the system and increase timing causing knock if the fuel isn't there. This may not also inform the transmission or other subsystems. The ECU map will not have these issues, because it is the root of fueling an engine, However the stealership can tell if you have a remapped ECU. Historically you could use a tuning system that would read your original map and save it, so you could restore it before service via the OBD2 port or other avenues, this is the way to go. If you want to use a tuner box I suggest only turning it on when that pesky Subaru or Audi or 4 runner is next to you at the stop sign. My defender kicks most other cars butts at stoplights, yes it has turbo lag, but give it about 20 feet. I have had a bunch of chipped or remapped cars, then its up to can the drive train handle it?
Tomw and the Killer Bee
Flight computers, Vehicle ECU's
Flight Software
Vehicle, Rocket and Satellite telemetry
current
P400 SE D110
tweaked E550 4matic V8 BiTurbo
Former
E63S AMG 4matice V8 BiTurbo wagon
C55 AMG
Jeep Grand Cherokee SRT with Arrington 426 stroker, nitrous, headers, chipped and remapped.. and stuff
97 Defender 90 SW, "Killer Bee", blower supercharger , under drive, welder, 4.74 R&P, fully locked, air tank and compressor, cover of LRW fully custom suspension and axles, 37 inch bead locks. all hard western core trails, on tow rig below
93 helios purple stripped ( weight ) and chipped/remapped Carrera 4 with roll cage and racing seats
super tweaked 95 discovery, fully locked, car top tent
Series 3 88 pickup, fully built, locked up, roll bar, 34's, parabolic springs, complete frame off restore
72 FC101 with powered trailer ( gave it to friend ) and front and rear PTO winches. locked up with 36's
62 109 rust bucket
F550 Crew Cab Dually tow rig with camper and trailer, propane injected, straight piped, HPOP fuel injectors system with Bully Dogs beta software ( remaped/chipped worked with them a few times )
The tuning box fools some of the engine signals to the ECU by vampiring two ( or a few ) connections in between them. This may increase HP and torque a bit unevenly. The problem is by lying about vehicle telemetry for only fuel sensor and boost sensor ( or some other sensor ) , the ECU is making decisions on only a few of the many inputs it has, this can cause inconsistencies and will cause the ECU to increase boost for instance but not tell other parts of the system and increase timing causing knock if the fuel isn't there. This may not also inform the transmission or other subsystems. The ECU map will not have these issues, because it is the root of fueling an engine, However the stealership can tell if you have a remapped ECU. Historically you could use a tuning system that would read your original map and save it, so you could restore it before service via the OBD2 port or other avenues, this is the way to go. If you want to use a tuner box I suggest only turning it on when that pesky Subaru or Audi or 4 runner is next to you at the stop sign. My defender kicks most other cars butts at stoplights, yes it has turbo lag, but give it about 20 feet. I have had a bunch of chipped or remapped cars, then its up to can the drive train handle it?
Tomw and the Killer Bee
Flight computers, Vehicle ECU's
Flight Software
Vehicle, Rocket and Satellite telemetry
current
P400 SE D110
tweaked E550 4matic V8 BiTurbo
Former
E63S AMG 4matice V8 BiTurbo wagon
C55 AMG
Jeep Grand Cherokee SRT with Arrington 426 stroker, nitrous, headers, chipped and remapped.. and stuff
97 Defender 90 SW, "Killer Bee", blower supercharger , under drive, welder, 4.74 R&P, fully locked, air tank and compressor, cover of LRW fully custom suspension and axles, 37 inch bead locks. all hard western core trails, on tow rig below
93 helios purple stripped ( weight ) and chipped/remapped Carrera 4 with roll cage and racing seats
super tweaked 95 discovery, fully locked, car top tent
Series 3 88 pickup, fully built, locked up, roll bar, 34's, parabolic springs, complete frame off restore
72 FC101 with powered trailer ( gave it to friend ) and front and rear PTO winches. locked up with 36's
62 109 rust bucket
F550 Crew Cab Dually tow rig with camper and trailer, propane injected, straight piped, HPOP fuel injectors system with Bully Dogs beta software ( remaped/chipped worked with them a few times )
Last edited by tfwv; Aug 11, 2023 at 08:03 PM.
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