you forgot to add a decent map to that list of changesIll be buzzing if it makes 360/360. If the engine is a little tired and only makes low 300s ill be happy with that. Beggars cant be choosers
Interestingly i found a build thread for the r26 i stripped for the engine.
As a few people have asked about my car so i fort i would put this post up just over a year ago i brought a standard r26 It didnt stay standerd for long. I fitted a full milltek exhaust with decat forge front mount and then went for stage 2 at pauls. the car made 275 bhp 340 ft lb. it was...www.meganesport.net
The pistons are actually cosworth (i thought they were wossner) and cat cams rods. It made 318hp/355ft/lb back in 2012 on stock head &19t hybrid.
Engine has done around 20k from my reckoning up. Ive added 250 head, 172 cams & 20t hybrid. High pressure 250 fuel system, decent cooler. I believe the limiting factors at the moment will be the turbo and the clutch .
It does indeed have a megane pk gearbox with lsd. I think the main issue is it squats so much on boost, ive dialled in a bit more rebound on the rear shocks and going to look at the overall suspension setup and upgrade as ness. Will get some professional advice on where to go with it to keep it compliant for the road but corner decent.What did it make? Has it got a LSD?
Mapping day yesterday. Had prepared as best as i could and packed a few spares "just incase". Steady drive down to Efi made it there in good time.
Pre checks done, fuelled up and parked waiting to get on the rollers. Moggy arrives for a catch up in his epic nimbus r26r.View attachment 1541044
Waited for Chris to finish up with another car on the dyno.
Firstly engine ecu was removed to bench read and write a new base map as the ecu was locked from previous map. I fit 250 map sensors and hook up the vac pipe for the rising rate fuel reg on the 250 rail.
Chris fires it up to check the base map, connects the hardware to map via obd. We run into problems at this point as the software does not recognise the Kangoo 2 vin number that is stored on the engine ecu and wont show any ecu data, boost pressure, charge temp, knock count etc.
This was a problem as cant tune it without any data logging. Long and short of it is, when i done the immobiliser sync i changed the engine ecu vin number to the Kangoo one to try and view it on clip (which did not work). The only option was to reload the megane R26 vin number so the software would recognise it, which was a bit of a carry on as the ecu needed to be a virgin immob file and would not write the vin without a bench flash back to virgin.
Luckily i had my laptop with me so found the virgin immob file, bench flashed the chip and resynced the immobiliser with Ren0link. Ecu vin changed and the hardware recognised the vin allowing logging to be done.
Onto the dyno.View attachment 1541042 View attachment 1541043
Chris asked me what i expected from the setup and what my use will be, i told him i want to drive this hard and track use so can sacrifice a bit of power for safety. He mentioned the 172 cams on stock timing may make the setup a little bit more laggy compared to usual megane, but that could work really well and make more power with less boost than stock 250 cams, and keep the drama out low down in the rpm which is good.
Part throttle mapping first.View attachment 1541041
Chris starts dialling it in and the power comes up fast and its looking like its working quite well. Safe 300 hp, 350 hp on 2nd run. Intake/Charge temps are really good and the rising rate fuel system is working well.
Wound it up a bit more and see 382hp @23psiView attachment 1541039
Clutch started to slip a little on spool at this point so had to pull boost up to 4000ish rpm and limit torque.
End result 375hp & 337ft/lb. Made up as i was expecting around 340hp and anything over that was a bonus.View attachment 1541038View attachment 1541037
Video of the final run.
Took it for a road test and it feels ballistic for what it is, its hilarious just squats and goes.
Traction is a major issue in first 2 gears and its quite hard to keep straight so chassis needs a bit of work to dial it in and it definitely needs some sticky rubber for track use, and a clutch upgrade very soon.
Massive thanks to Chris @ Efi for epic service as usual, he totally went above and beyond and stayed back late to get it all dialled in and finished after the initial issues with the ecu. Overall it drives fantastic and very pleased with the results.
Thanks for reading!!
Its really hard to choose a favourite out of the pair. Both are s**t on fuel, the Kangoo is quite refined with pas and electric windows and the torque absolutely nails you in the seat, fast as for what it is easy to drive, good modern brakes with abs. Its something that you can drive day to day without being too tiring, and once ive really dialled the handling in it will be quite the weapon on the corners, already feels pretty decent.Which one is cooler, I honestly can’t pick!