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Hi All, Back at the start of the lockdown I decided I needed a project to look forward to whilst working from home and I'd been toying with the idea fitting a turbo/supercharger for a while. Only problem was a i really fancied doing the installation work myself, so after some research (and a test drive in the Abbey demo car) I settled on ordering the Harrop supercharger kit from @Mark@Abbey M/S . Now it turns out that Abbey don't sell many of these kits for DIY fitment, so i figured I'd write up a bit of a review in the hope others might find it useful and may even have a go themselves in the future. Existing mods Prior to fitting the supercharger I'd had a TD manifold fitted and a remap by Abbey which took the car up to about 180bhp at the hubs and around 140ibft of torque. I’ve also fitted several cat backs ultimately settling on the TD super res. What's included? So for the money you get Harrops custom built manifold mated to an Eaton TVS1320 blower plus all the bits and pieces required to make it work on the car (including a special tool for reforming the A/C pipe around the supercharger). I have to say on unboxing the kit i was really quite impressed, it includes just about everything you need to get the job done. Complete with a signed off opy of the picking sheet when the kit was put together at Harrop so you can see someone's taken the time to put it all together and you can easily check it's all there. The only bit that wasn't included was the coolant for the charge cooler but that's not the end of the world as it's a standard GM coolant so you can get the anywhere. In addition Mark also provided; the loan of an EcuTEK programming cable and dongle, a base map to get the car running, distance mapping (more on that later) and a session on the dyno for final map tuning and a power run. The fitting process This is the bit i'd imagine will be most of interest to other as there's not an awful lot of info online about it. Now the first thing I must stress is much in the style of the Pirates code (see one of the Pirates of the Caribean films for the full reference), the instructions are really for guidance only. They'll point you in the right direction (usually getting you 95% of the way there) but there will be times where a little bit of thinking is required. Most of those moments centred more around the removal of the OEM items rather than the refitting of the new bits, which in all honest I kinda expected and it wasn't really that difficult. That being said Mark was always at the end of phone when I had bits i wasn't sure of. In terms of what was required to fit the kit, i did it over the course of a week with the front end in the air on a set of drive on ramps. If you're going to this way it's worth considering fitting the chargecooler/chargecooler pump/pipe work first (the instructions have it last). That way all the work from underneath is done before you start removing things like the fuel rails. Also it's worth following a bit of advice from one of the American forums and remove the undertray all the way back to the footwell, it's sods law you'll drop something and it will almost certainly land on that under tray. As for tools, the only specialist tools required were the former for bending the A/C pipe out of the way and that was included in the kit (it's worth making sure you have a substantial G clamp though as bending that pipe is hard work). Just about everything else can be done using a socket set and the odd screwdriver/allan key. The only minor issue i did find was that clearance between the TD manifold and the crank pulley was a bit tight, so we had to grind a little bit off the flange to fit the auxilliary belt. That and getting the fusebox apart to fit the chargecooler pump wiring but that's simply a case of trusting that it's more solid than you think. Once you're happy leavering things knowing what you can get away it comes apart fairly easily. Mapping Now the mapping process is something I've never really been involved in before so it was quite interesting. So Mark talked me through the initial process of connecting the EcuTEK software to the car and querying the ECU. He then sent over a base map which allowed me to get the car running and. From there it was a case of going out taking data logs starting keeping the car at low load/rpm initially then gradually increasing load/rpm as Mark tweaked the mapping till we got to a point where i could run it all through the rev range. This was the first point where the supercharger relay began to put a smile on my face, running it all the way through the rev range in third is really quite addictive. The way the torque just builds and builds is fantastic. After that i got the car booked in on the dyno for the final tune and a power run (the results of which are attached), the headline figures being approximately 240bhp (up 60bhp) and 200ibft or torque (also up around 60ibft). Conclusions to wrap up, i have to say i don't regret going down the DIY fitment route and i'd highly reccomend it to anyone that's half decent with a set of spanners. Fitting this kit really isn't all that complicated and the feeling of pride when you fire it up for the first time is just fantastic. That and of course you get a car at the end of it with some serious performance, the bit where it really comes alive is the the way it pulls through third/fourth/fifth. Where it used to run out of steam the car now just pulls like a train. With the added bonus that the fuel consumption hasn't taken to much of a hit, granted if you really press on then it drops quite quickly but on a gentle cruise i can still get 32-33mpg. I'd also just like to say a big thanks to Mark and the team at Abbey Motorsport. They were really helpful through out the process (Mark even delivered the kit personally after Parcel Force decided it was to heavy but didn't bother calling him to say so) and it was good to know that Mark was at the end of the phone should i need some advice. If anyone has any questions then fire away, i'm more than happy to help.

Well we have been told it would be released early 2018 and here it is; The GT-RS will work real well with the FA20 motor as long as we can control the torque on a stock motor. I think HKS are pushing there luck with running 40 kg/m torque where we run only around 30kg/m max torque on the Harrop SC kit installs. Intercooler set up is very much like our Turbo kit we have produced in very small numbers and now with this kit released we may retire our kit TBH. Will have a think about ordering a kit but I think We will miss the awesome torque the Harrop produces looks like the HKS kit doesn't pull until 3500rpm which I feel will make our light cars a little aggressive on the torque curve. Going to look to work a price out from drive in drive out kit , the HKS stock motor plots had injectors fitted so we hope to be able to tame the tune down to run stock injectors/fuel pump. Should be a awesome piece off equipment thou anything that comes from HKS will be a excellent fit and will look and last for a long time.

We been waiting for a Ecutek RaceRom update to allow us to push on our Traction control development , being a master tuner we have a Beta RR package that allows us to do this. With some carefully built RR maps and the EVI Ecutek Bluetooth module we have got a pretty good adjustable traction control set up still needs some more work but already it is pretty good Your see wheel slip at the bottom being controlled. Throttle pedal is fully down commanding 80% throttle butterfly opening but our RaceRom custom maps is keeping the Throttle butterfly only @ 54% reducing the power together with reducing timing normally @ 5000rpm and 1.9 engine load we would see around 23/24 deg timing our RaceRom maps are dropping the timing to around 14 degs to reduce the power to keep the wheel speed (slip) under control. The traction is controllable via the Ecutek Bluetooth EVI with a slider to adjust the amount of traction control We should soon have this sorted so when the new RaceRom update is released it will be available to our Ecutek tuned customers. We hope to have 2 levels calibrated to enable use without having a Ecutek EVI module but it wont be adjustable by the driver

Good result from a GT86 fitted with the ACE CS400 and the Abbey Motorsport HFC SOLID lines after tuning package fitted Dotted lines stock GT86

Sorry been so busy; Cobra have delivered the prototype large capacity HFC for testing; around 35% larger capacity so should flow real well , hold the the heat longer so better for MOT passes and be very reasonable cost wise; Hope to have some news very soon.

Abbey have been given the distributor level to sell the Stark Performance Auto car shifter extensions; We have 10 sets on order will be with us within 10 days. Cost for the 1st 10 sets will be £42-00 inc vat this is with 20% discount. Normal cost will be £50-40 inc vat. please email mark@abbeymotorpsort.co.uk with order and any questions.

With HKS excellent price reduction on1st February, Abbey Motorsport are going to offer a self fit V2 SC kit for the GT86/BRZ platform. V2 kit with ECUTEK cable/dongle/license and base tune for £3100 inc vat. Base tune will be for a stock car or car with 2nd cat and full exhaust system. I think this is the cheapest quality SC kit on the UK market.

In the depths of Abbey Motorsport Ltd dyno room we have been working away on developing the GT86?BRZ one of the developments is an Oil pressure trip for these FA20 motor s, nothing new but just needed to developed for these cars. It also allowed us to look into the oil pressure on these motors , anyone with an oil pressure gauge will see there is big fluctuation in cold to hot oil temp. We have found a few items on the motor that can be worked on to fix these issues also we have noticed that engine revs has an influence with oil pressure. here is a datalog from a built FA20 with Abbey tweaks on the oiling system when run on our dyno this week. With the inputted oil pressure into the RaceRom feature of the EcuTek International Ltd software we can add a fuel cut to limit the motor if the oil pressure drops below a calibrated number with a RaceRom map , this allows us to basically limit the car if the oil pressure is below the level we are happy with.we added a delay on the fuel cut happening to allow for transition area's. Something to help look after these FA20 motors when used on the circuits