Engine was not blown. merely a snafu on my part. junk comp tester and some crazy codes from the AP. Turned out to be a coil

 

Lay answer. Check wisco and match up what the the 56 has in it, or similar manufaturer.

 

The stockers have a crazy looking tear drop recess (for Direct Injection fuel and flame propagation) in the crown along with two different type of valve reliefs so an off the shelf that is the correct bore/pin/skirt wont necessarily work...

 

I was waiting till the day your motor blew lol....no offense intended.

No one makes pistons and rods yet. Choose your favorite engine builder and get them made.

The pistons in this car are complete trash...I too lost #3. I got another stock motor for the time being, but I'm going to have pistons made shortly. Ideally I want the full bottom end done...pistons, rods, and a stroker crank.

There's a reason they are breaking and a reason these motors devour oil. I will not deal with it anymore, its only a matter of time before this motor decides to give out too. Life's too fun at 20 psi and a bigger turbo...so gotta plan accordingly

Wasn't gonna post this but don't care anymore, here's a piece of my piston that broke off...its from the skirt, found in the oil pan:

 

I believe sktbrd is having some pistons special made for his r53. You might send him a PM to find out who is making them.

 

@thumper - I'm sorry you didn't think the car would hold up. Someone has to push the envelope a little bit. There are so many people with these cars that are happy with just some bolt-ons and a box tune. I unfortunately am not one of those people ;-) . Worse case scenario is cryo treating the bottom end. I wonder what a custom set of pistons would cost???
@motormouth - thanks for the info. I'll hit him up.

What do the peugeot guys use overseas?

 

As I said....no offense intended.

There's no way these motors can take the power of a GT28...sure in this case you killed it fast from a wastegate issue, but it was only a matter of time before the pistons gave out on their own.

I think there is now someone breaking pistons daily...lol thats how it seems at least. Interesting thing is it is not the result of poor tuning...which I'm sure some haters would love to assume. Alta/Cobb tuned cars, RMW cars, Mynes cars, and stock cars have all seen the same exact failures.

 

Who has had piston failure on a stock car?

 

I have heard of many...no one on the forum I don't think

 

I've heard of exactly 0

 

Ok.....so that means it hasn't happened? lol....

There's people that have mini's that aren't on NAM ya know

 

I know a place that sells camshafts

http://www.mini-madness.com/R56-schr...amshaft-1.aspx

Sorry I'm not very helpful.

 

i never said it hasn't happened. I just said I've never heard of it. NAM is not a small sampling of the MINI population.. If it were a common occurrence it would likely show up here - or at one of the several other forums I visit.

I would think if you've heard of many stock pistons dying, there would be at least one - and probably more than one - example on this forum.

How many specific stock ones do you know of?

Out of those how many experienced unusual or harsh conditions before breaking? i.e. loss of oil pressure/overrevving/abuse

 

Crower will make rods to any spec you want. I've ordered Ford big end to Jag pins from them for a V12 stroker crank...

Around $150 each, iircc.

 

have a look here http://eshop.kanteres.gr/en/virtuema...=28&TreeId=112

 

What is the reason for the above stated? Why do they devour oil?

 

give me a call Owen..........
I'll explain it.........

we will be making up pistons and rods, cranks too if there are enough people interested in getting stroker assemblies made

 

I wasnt offended thumper... Its hard to express tone on these forums without using an over abundance of queer emoticons LOL! You said your failure was in the ring land?



Thanks Ch28 Ive got cams buddy. Im looking for replacements for my toasted piston...

Thats where i thought i was going to end up. I had some crowers in a v8 build that worked great for a long time... I was just wondering if anyone knew of a one stop shop...

 

That looks very promising! Thank You!!! Gonna have to call them and see if anyone speaks english

 

When? I want to be back together in 6 months after machine work and everything... You think you might want to tune it? I heard Japtrix south of me has the protune software now...

 

I just called and left a message for our crankshaft guy. I should hear back by end of day. Should have a crank in hand by 8 weeks. What I will need is your crank out of this engine for them to get measurements and mock up the prototype. They did this for our Billet R53 cranks. You will get the crank back after the measurements.

 

I'm more concerned with the pistons and rods. I'm not sure if I have the funds nor the patience to venture into the realm of stroking this motor right now. This car is my daily. Im concerned with the the crown design being fully compatible with the direct injections fuel an flame propagation.

 

Anyone who has rebuilt an n14 or looked over rebuild specs will see the clearances of the rings are rated to large in IMO.

 

@ bigprfed -That's probably why my first motor lost compression from ring wear.

 

I have seen engine writeups on clearance as large as .008 from the factory


Its understandable if in stock form in order to "relieve pressure" to sort of say, But once you start laying down the power/heat the stress is increased and there is too much movement IMO.





Thumper you lost your motor too running the JCW charger unit?