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All,
A few weeks ago I had my Challenger in for an ECU remap via MRT and the EcuTek software. The work was completed in Perth by a local company who are an agent for MRT as well. Below are my main comments/feedback, as it was hard to find alot of this info easily before getting the work done. My vehicle is a 2010 LS auto with 30K on it.
- Power/torque. My tune acheived a 42% increase in torque. There are a couple main differences in how it is delivered/drives; There is an obvious improvement in how early torque starts to come on - things are really getting on the boil by around 1,800rpm; There's a lot more of it - especially once just over 2,000rpm, the increase is substantial and its quite easy to get traction control working in 2nd gear (auto) - from around 2,400rpm its a monster; It's very linear - gone is that annoying double hump in the factory torque curve, once it's on, it stays on! In short, the change in performance is excellent, but so is the way in which it is delivered. Mitsubishi could have done a lot better out of the factory.
- Lag. There's still some, but it's definitely reduced, and the increase in how fast things spin up (more torque), and the much more linear profile make it hardly noticeable except from dead idle (in an auto at least).
- Fuel economy. It's still a bit early to give exact figures, but the 2 tanks since the remap have definitely done better, and the in dash read out seems to be around 1-2 L/100kms better than before.
- Engine noise. No real change in rattle. There's a little more turbo over spool (whistle), but that's probably just due to extra boost.
- Smoke. If anything, slightly less than the factory map, but definitely no more than stock.
- Exhaust Gas Recycle (EGR). The remap closes the valve at basically all throttle settings off idle. There is no need for a blanking plate and this should also go some way to preventing carbon build up in the intake.
- Mitsubishi can over write the map? Yes - correct. If a service is performed and a software update completed, it is possible the map can be over written. However, Mitsubishi cannot see that the vehicle has been remapped. If over written, your EcuTek map can be reloaded (for free I believe), as MRT save all customer maps.
- Dyno vs Road tune. When the remapping is done, the first step is loading a new map based on all of MRT's R&D with their 2.5L DiD. There are then two ways forward, road tune or dyno tune. The general recommendation for a stock Challenger (or Triton), is that a road tune should be more than sufficient, as the mapping has already been basically perfected on a stock vehicle. For road tuning, the vehicle is then driven around on the road and logged and then the log file is sent back to MRT to check parameters (exhaust temps etc) and make minor adjustments etc. The advantage of this its cheaper than dyno tuning which wouldn't seem necessary. This is the path I originally took, however, the final result wasnt quite what expected - there was a noticeable increase in torque and power, but higher in the rev range than what other vehicle dyno charts had suggested. All credit to MRT and their Perth agent, as when I asked about this, they said it didn't sound right, and then put the car on the dyno (at their cost) to ensure the result was correct. The final dyno tuned result is much improved than the road tune, and inline with my pre remap expectations. The local agent said differences in each engine, including original build plus age and service since new would mean that the base MRT map would yield slightly different results on each vehicle - in my case it was obviously not quite correct. Lesson - go for the dyno option upfront.
- Cost. Mine was $1,500 for the road tune option. The dyno option was a few $100 more, but as per above, is the way I would recommend going to ensure best results (plus you get the graph and figures).
All up, I'm very happy with the results and the service from MRT and their agent in Perth (there are several). I'm happy to provide further feedback on other questions. Would also stongly recommend the tuner in Perth, but please IM for details.
Cheers,
Drof
A few weeks ago I had my Challenger in for an ECU remap via MRT and the EcuTek software. The work was completed in Perth by a local company who are an agent for MRT as well. Below are my main comments/feedback, as it was hard to find alot of this info easily before getting the work done. My vehicle is a 2010 LS auto with 30K on it.
- Power/torque. My tune acheived a 42% increase in torque. There are a couple main differences in how it is delivered/drives; There is an obvious improvement in how early torque starts to come on - things are really getting on the boil by around 1,800rpm; There's a lot more of it - especially once just over 2,000rpm, the increase is substantial and its quite easy to get traction control working in 2nd gear (auto) - from around 2,400rpm its a monster; It's very linear - gone is that annoying double hump in the factory torque curve, once it's on, it stays on! In short, the change in performance is excellent, but so is the way in which it is delivered. Mitsubishi could have done a lot better out of the factory.
- Lag. There's still some, but it's definitely reduced, and the increase in how fast things spin up (more torque), and the much more linear profile make it hardly noticeable except from dead idle (in an auto at least).
- Fuel economy. It's still a bit early to give exact figures, but the 2 tanks since the remap have definitely done better, and the in dash read out seems to be around 1-2 L/100kms better than before.
- Engine noise. No real change in rattle. There's a little more turbo over spool (whistle), but that's probably just due to extra boost.
- Smoke. If anything, slightly less than the factory map, but definitely no more than stock.
- Exhaust Gas Recycle (EGR). The remap closes the valve at basically all throttle settings off idle. There is no need for a blanking plate and this should also go some way to preventing carbon build up in the intake.
- Mitsubishi can over write the map? Yes - correct. If a service is performed and a software update completed, it is possible the map can be over written. However, Mitsubishi cannot see that the vehicle has been remapped. If over written, your EcuTek map can be reloaded (for free I believe), as MRT save all customer maps.
- Dyno vs Road tune. When the remapping is done, the first step is loading a new map based on all of MRT's R&D with their 2.5L DiD. There are then two ways forward, road tune or dyno tune. The general recommendation for a stock Challenger (or Triton), is that a road tune should be more than sufficient, as the mapping has already been basically perfected on a stock vehicle. For road tuning, the vehicle is then driven around on the road and logged and then the log file is sent back to MRT to check parameters (exhaust temps etc) and make minor adjustments etc. The advantage of this its cheaper than dyno tuning which wouldn't seem necessary. This is the path I originally took, however, the final result wasnt quite what expected - there was a noticeable increase in torque and power, but higher in the rev range than what other vehicle dyno charts had suggested. All credit to MRT and their Perth agent, as when I asked about this, they said it didn't sound right, and then put the car on the dyno (at their cost) to ensure the result was correct. The final dyno tuned result is much improved than the road tune, and inline with my pre remap expectations. The local agent said differences in each engine, including original build plus age and service since new would mean that the base MRT map would yield slightly different results on each vehicle - in my case it was obviously not quite correct. Lesson - go for the dyno option upfront.
- Cost. Mine was $1,500 for the road tune option. The dyno option was a few $100 more, but as per above, is the way I would recommend going to ensure best results (plus you get the graph and figures).
All up, I'm very happy with the results and the service from MRT and their agent in Perth (there are several). I'm happy to provide further feedback on other questions. Would also stongly recommend the tuner in Perth, but please IM for details.
Cheers,
Drof
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