Today Mountune released their next power upgrade kit;
Revealed exclusively at the Cars and Coffee event today in Essex is the mountune MR230 upgrade for the mk7 Fiesta ST.
As the name suggests, the MR230 upgrade kit delivers a performance uplift to 230PS at 5500rpm with 340Nm of torque available from 3000rpm.
As with almost all MR upgrade kits, the base hardware used in the MP kit is retained, in this instance the induction kit, to enable and easier and less expensive transition to MR level performance.
Joining the induction kit is a high-flow silicone induction hose and charge pipe upgrade kit, an uprated alloy intercooler, high-flow downpipe with 200-cell cat and a twin-tip cat-back exhaust system. All hardware can be added in a modular fashion except the downpipe, which is recommended to be installed together with the MR230 calibration.
The MR230 calibration is supplied using an mTune handheld device – for customers who are currently running an MP215 installed with an mTune, an in-field downloadable firmware update is available at a greatly reduced cost.
mountune's engineers spent a great deal of time developing this kit to ensure that it delivers the optimum level of performance with the OE turbocharger, whilst maintaining the maximum possible reliability of the engine and transmission components.
To help do this, the MR230 upgrade kit is also supplied with a mountune locking tool to adjust the cam timing. Working with the OE turbocharger compressor map, it was evident early into the development process that simply adding the appropriate hardware wouldn't be sufficient to maximise what was, in reality, a small operating window to extract additional performance.
As part of the upgrade, the cam timing has been optimised and to ensure a quicker, more accurate method of timing them accordingly, a bespoke tool is included for the installing technician.
The altered cam timing provides a definite improvement in power and also helps hold on to the torque higher up in the rev range.
The end result is the docile, OE-like day-to-day driving experience you've come to expect from a mountune calibration, which, at the depression of the throttle, spools into action, delivering a wave of torque that's difficult not to smile at, with an induction and exhaust note that's hard not to enjoy in equal measure!
For customers running the market-leading MP215 upgrade, the MR230 delivers a whole lot more of the same torque-related characteristics, but with a noticeably stronger top-end, and for those with a standard Fiesta ST, the change in performance is understandably, dramatic.
With the kit installed, the 0-60mph time drops to 5.9 seconds, a full 1-second improvement over the standard model In-gear and midrange acceleration is improved upon even more substantially thanks to the 340Nm readily on hand.
As an MR upgrade, your warranty may be affected as it does not benefit from the same exemption that the MP upgrades provide. However, the cat-back exhaust is covered by a limited lifetime warranty and our standard 12-month / 12,000 mile warranty against manufacturing defects is applicable to the remaining hardware.
MR230 from MP215 costs £1995 inc. VAT
MR230 from a standard Fiesta ST costs £2295 inc. VAT
Ouch. Despite it being as close to warranty approved as any tuner will get...I'll not be doing this.
