Wasn't going very fast only about 40mph in 4th gear, accelerated a little to come off the dual carriage way up a slight hill and boom, lots of rattles from under the car. Opened up the bonnet and saw oil and bits of internals everywhere... Couldn't of just bent a rod could it, had to wreck the block with it. And a bit of something also decided to smash a hole in the radiator. so i decided to get a bigger aluminium one. But on a plus side i fetched this complete 265 engine today so will have a few parts spare plus including the turbo as i already have one. Bit of a squeeze but it fits in a boot of a 1 series quite nice. Just deciding now what i want to do with the fuelling and if to hybrid the old 225 turbo and sell both 250/265 turbos.
Nice hole though! All good things will come out of something bad mate! Time for a build project! Sent from my iPhone using Tapatalk
Sorry to hear man :-/. Could you please tell us some more information about the engine? Age, mileage, what power & torque?
It was the magic 300Ib/ft. And 295 bhp. Car was mapped last year by Paul at rstuning. 1.1 bar dropping to 1 bar on a 250 turbo. Car has driven faultlessly until now. 225 Trophy with 95k. Soon to be a 325 Trophy with 41k.
These things happen. I knew it was pushing it on a standard engine. At least it should be a bit more reliable with the 265 engine.
Scary seeing this I will be at around 285/300 soon and this would be a nightmare. Does a 250 engine fit easily into the 225?
Following this, engine swap might work out cheaper then forging it Sent from my SM-G920F using Tapatalk
I meant that it might be cheaper to swap for the 250 engine, then forge the 225/230 one, have no idea how much a 250 engine is Sent from my SM-G920F using Tapatalk
Got a dilemma and hoping someone will know. Can I swap the dephaser and for a normal cam wheel from my old engine? Not going to be using vvt so it's just something to break later.
That's the thing Steve, it very rarely got driven hard. The wife drives it 90% of the time and she drives off boost nearly all the time. It gets the odd bit of boost when I drive it but it's not driven hard as I usually have my kids with me.
If you did use the 225 cam wheel, You would have to use the 225 inlet cam as well , cause the dephaser is oil driven though the cam
Apparently? Going by the fact that they can take 380+lbs ft I think it's safe to say the internals are stronger. Ill get some photos up of them once I strip down my fucked engine for you.
Pictures are pretty rare, the only I've ever found were in a build thread for a Mk3. Only looks to me that in this case the pistons are stronger. http://turborenault.co.uk/t16368/
225 vs 172 rods. I'll look forward to seeing what's in your car, maybe this is a case of Renault raiding the parts bin again. When are you starting the rebuild?
I was chatting to my local specialist about this subject as he also has a customer who was running 300 lb/ft and has blown the engine, OTOH he has customers that have run up to around 275 for years without any problems. The thing is if one applied a decent safety margin (for track) such as 20% back from 300 you get back to more or less stock figures which is hugely disappointing to be quite frank. Its funny that we live on a forum where there is lots of interest in tuning but honestly the Mk2 Megane looks to be the worst engine base to start from for tuning of any modern turbo engine I have come across, just as well the R26/R26.R are such fantastic cars out of the box.
This is exact what happened to my engine. Now have a fully forged lump [emoji106] Sent from my iPhone using Tapatalk
This is the number one reason megane engines explode when people say "I was only going slow and it exploded". I pilot error mixed with bad luck makes these incidents happen sooner rather than later. In future don't stick your car in 6th doing 30mph and floor it :-).
