MP3 stock psi safety

[Bradleyac]

what psi would be safe to run on the stock mp3 engine

 

[MP3Architect]

depends what size turbo.

 

[Bradleyac]

16g from a mitsubishi

 

[SIBalla23]

You could probably run 8 or 9 psi safely. But you can't use the mp3 ecu, the timing is different and will cause problems. If you got a standalone ecu then u would be ok.

 

[smp3000]

on a 16G... Uhm I'd say you could run 7-8psi with a piggyback. I ran 8 psi on a T304 with the MPI but still got knock at WOT.

 

[Captain KRM P5]

i would not go higher than 8 unless you have fuel and timing controlled by something other than the stock computer

 

[Bradleyac]

i have a greddy piggy back, but u guys say 8 psi, but i was wondering if y'all knew that the mp3's have higher compression than the mazdaspeeds, that is kind of what i was worried about, but if you own an mp3, and have no engine work done to it, and turbocharged what are you boosting at? i need to get a timing control, or is that part of my piggy back

 

[Bradleyac]

another question, my friend that has an eclipse said the 16g would bolt right up to a stock turbo manifold from a speed, is this true, or did my 350 dollars mean something

 

[smp3000]

I'm unsure on what greddy unit you have. I had the MPI unit and it controlled timing and fuel. Even with this I would hear detonation at anything over 8psi.

From what I know the stock MP3 motor will not handle anyhting over 200WHP for very long. I was running close to that when I sold my car.

 

[smp3000]

another question, my friend that has an eclipse said the 16g would bolt right up to a stock turbo manifold from a speed, is this true, or did my 350 dollars mean something

The 16g is a bit larger than the stock MSP turbo... I have no idea if it'd bolt right up to the MSP mani or not... But I'd assume you'd have to swap out a few other things like fuel pump and injectors and have some sort of fuel/timing control if you did so. The 16G is a pretty good turbo. It spools up quick and can make some pretty big numbers.

My evo runs 22psi on the 16G and is putting down close to 300AWHP. There are some people well over 400AWHP on the stock turbo at 28-30 psi.

 

[Bradleyac]

yeah, a buddy of mine has an evo that is putting down those numbers on the stock turbo i think he was putting out 375 and ran a 21.1, but i do have an entire kit, i have everything i need to make this happen, just need the manifold to come in, but i can cancel it if the 16g bolts up to the stock manifold, anybody that knows please say

sorry not a 21.1 but a 12.1

 

[Jeph]

I didn't know that the MP3 had higher compression, I just thought they ran different timing to make a bit more power than your average protege...

 

[SIBalla23]

The mp3 doesn't have higher compression. Its the same engine as the 3rd gen dx,lx,es, p5 and mazdaspeed. Its the ecu that is different. It has different timing that makes the car have a little more power then the average p5 or es.

 

[smp3000]

^^ exactly... It's the same engine. I swapped my ECU with Tom @ Kartboy for his P5 ecu. The advanced timing was not good for the turbo- especially before I went with a piggyback.

 

[Jeph]

So i wasn't wrong

 

[BradC]

Nope not wrong.


And IIRC the 16g will not bolt up to a t25 manifold.

 

[vindication]

what greddy piggyback?? I'm confused

 

[Bigg Tim]

I've run 8psi on my T3/T4 on the stock motor with the stock MP3 ECU for over 2 years now with no problems. I run the MPI piggyback that controls fuel and timing and I have ZERO detonation. I would say it is only safe if you have fuel AND TIMING control. I also don't bash on it hard all the time. I also ran 228whp for the 1st year until I moved to AZ, then the power went down due to air, altitude and gas, so you can run over 200whp reliably if you have it TUNED RIGHT!!! I say if you have fuel and timing control, don't take it above 8psi. I plan on going to 10psi sometime, but that will be when I'm ready to do a motor.

 

[mazdaspeed75]

b

Hey brad this is Tony man . You should get the mpi and we can tune it here . We need to talk some more about the Mazda club here . Later Tony

 

[Bradleyac]

well, i have a t25 turbo sitting in my room and the measurements on the part where it bolts up to the manifold are the same as the 16g. thanks for all the info. everyone, so i'll be beating my buddies stock mazdaspeed in no time.