KitsonRis
ClioSport Club Member
Today couldn't have gone any better! All mapped up and it now runs! I am so pleased
Started the day loading it up onto @VenomUK truck an headed for some fuel
Got to EFI, had a quick chat with Chris and said what the issues I was having to get it running. Turns out the ECU thought the throttle position sensor was at full throttle at all times so no wonder it was not fuelling correctly! Spark plugs looked like this
Chucked a new set in and more fiddling with the ECU was done. Got it idling perfectly. Chris wasn't quite happy with how it was sounding either...turns out it wasn't running on cylinder 4. Swapped the injector connections over and it starts to run on injector 4. Something wasn't quite right with the wiring. Opened up the ECU wiring plug, looked for injector 4 wire and it was missing....like where has that gone?! No wonder it wasn't working. Turns out muggins here swapped pin 89 (injector 4) and not 79 🤦♂️ pin 79 was for the knock sensor that needed moving so no wonder it didn't care about how rich it was running!! Sorted that and was all good to go. Only other thing I had to do was re-route the thottle cable to be behind the heat shield a bit more so it didn't melt (quick job to get it working and will need to come back to sort that out).
Obligatory dyno run photo and read out
The highest power it made was 199.4bhp but on all the runs it did a 199.somthing. Would not quite get to the 200 mark. All the curves were pretty much identical too. I am well chuffed with that!! This must have been a strong engine to start with I think as I was not expecting that kind of power. The noise it makes is glourious! I will need to sort out a centre silencer though for it to pass any form of noise limit checks on track days.
The only thing that I need to sort out is the throttle cable and the return spring on the bodies isn't up for the job - it is like a suck throttle and holds the revs. The throttle cable was quickly re-routed as a bit of an ad hoc thing so making that better might help some of the issues. The ITB kit came with another spring too iirc so might see if that is better, otherwise it shouldn't be too hard to soruce one?
Things left to do before it is "done":
Spec of the engine is:
Started the day loading it up onto @VenomUK truck an headed for some fuel
Got to EFI, had a quick chat with Chris and said what the issues I was having to get it running. Turns out the ECU thought the throttle position sensor was at full throttle at all times so no wonder it was not fuelling correctly! Spark plugs looked like this
Chucked a new set in and more fiddling with the ECU was done. Got it idling perfectly. Chris wasn't quite happy with how it was sounding either...turns out it wasn't running on cylinder 4. Swapped the injector connections over and it starts to run on injector 4. Something wasn't quite right with the wiring. Opened up the ECU wiring plug, looked for injector 4 wire and it was missing....like where has that gone?! No wonder it wasn't working. Turns out muggins here swapped pin 89 (injector 4) and not 79 🤦♂️ pin 79 was for the knock sensor that needed moving so no wonder it didn't care about how rich it was running!! Sorted that and was all good to go. Only other thing I had to do was re-route the thottle cable to be behind the heat shield a bit more so it didn't melt (quick job to get it working and will need to come back to sort that out).
Obligatory dyno run photo and read out
The highest power it made was 199.4bhp but on all the runs it did a 199.somthing. Would not quite get to the 200 mark. All the curves were pretty much identical too. I am well chuffed with that!! This must have been a strong engine to start with I think as I was not expecting that kind of power. The noise it makes is glourious! I will need to sort out a centre silencer though for it to pass any form of noise limit checks on track days.
The only thing that I need to sort out is the throttle cable and the return spring on the bodies isn't up for the job - it is like a suck throttle and holds the revs. The throttle cable was quickly re-routed as a bit of an ad hoc thing so making that better might help some of the issues. The ITB kit came with another spring too iirc so might see if that is better, otherwise it shouldn't be too hard to soruce one?
Things left to do before it is "done":
- Sort throttle cable
- Better spring on the throttle linkage
- Fit the rear ABS sensor
- Make the fuel pipe feed better (was never happy with it but it got the job done!)
- Coolant flush - this is now brown, annoying as it was brand new and hardly used!!
- Break it so I can justify other nice parts
Spec of the engine is:
- Ph1 172 engine
- Standard pistions
- Standard cams
- KTec ITB Kit
- Gen90 ECU with custom map
- Megane 225 injectors (genuine new ones)
- 4bar fuel pressure regulator
- Magnecore HT leads
- New spark plugs
- New-ish coil pack (new less than 5000 miles)
- Lower temp thermostat
- Cambelt and dephaser changed less than 5000 miles ago.