How much can 2.3 T stand

[Nasos Mazdaspeed 6]

its well known,that for our engine doesnt exist two much tested modifications!thats a problem for sure and i want to know if any 2.3t passed over 350 hp without any problem and how!i hope that our beloved 2.3T is totaly reliable even when the power upraises to God!!
whats your opinion dear friends and what are the perfect solution in order to increase power safely?
in Greece with ecu reflashing ,we havent the best results and after 6 or 8 months the pistons rods were broken!

[Nuliaj]

386 AWHP stock block GT3076 no meth.

[2000MNLESS]

386 AWHP stock block GT3076 no meth.

Say bye bye to that motor!

[tricache]

no no it will just have crankcase ventilation

[2000MNLESS]

^^ Not a cool mod!!

[MattMPS3]

He has since parted out and sold the car, no ECU mods either, here is the dyno post.

whoosh dyno *NEW* 386awhp / 349awtq (8/28/08) - Mazdaspeed Forums

[tricache]

It would be nice to see how it lasted like that...I say it would have had some issues later down the road...nice to see though, would be awesome to see with a new ECU or even just a flash.

[Nuliaj]

Seeing as this was done with CP-e, I don't think there would've been any issues. I honestly believe the stock block is capable of 400 hp at the crank without issues as a daily driver. Whoosh's 386 AWHP is roughly 500hp at the crank assuming 25% loss. IMHO it's not the engine components that are weak, it's problems with tuning.

[magoo]

Other underlyingdesign faults exist also. Some talk of weak mains allowing the crank to move around and thus damaging rods etc. Our rods have been seen as the "weak point " thus far but may be a symptom of another issue like that listed above rather than being weak themselves.

One big developement in the states is that a hugely respected engine builder DCR is going to examine and diagnose the failure causes big turbo etc MPS's are experiencing.

An example of his process is as follows.

Build a shortblock,
machine a head,
make 100 dyno pulls
track it
beat it
tear it down
examine for wear and failure
improve.....
then repeat

I personally have stopped pushing for more power untill a rock solid answer is available. This hopefully will be soon (not holding my breath though)

[Nasos Mazdaspeed 6]

nice to hear these good news guys!!
we also believe here in Greece,that the main cause of the <<crack>> is the false ecu reflash!
i believe very much in 2.3T
but the difference between our engine and others,for example TFSI is that for Grouo Vag motors there are so many tested solutions even with any motors already broken!but now they know how with filter,exhaust and ecu reflash to be reliable!
we need specific kits and solutions!
i hope noone else engine to say bye bye...lately a friend of mine with a mazda 6 mps,by the ecu reflasch and the too big exhaust -76mm-(for 340 hp)the piston rods were destroyed...

Ps.i beg your pardon if my english arent in the best level!!hope you can understand me well!!thank you ayway!!