A reasonable build

[GhostMercury]

hmm yea ive heard alot of bad about unichip not tunning good with our cars and not to much good and i know nothing about the mpi so id like to hear this

 

[mazdaspeed75]

My car was running pretty good with the Mpi and extra injectors. Sam tuned it several times and i caught on and tuned it alittle more for that 13.9 103.88 run . I overpowered a rod though .

 

[GhostMercury]

will mpi work only looking for 250whp?

or actually can i achieve that at no more then 12psi on stock turbo
and what would happen if i got the mpnick upgrade

 

[mazdaspeed75]

You can easily get 250 whp with the Mpi . It worked graet for me , I will run this when i get my motor and tranny built . I will try and get 300 plus with the mpi. We will see .

 

[mazdaspeed75]

My car was running pretty good with the Mpi and extra injectors. Sam tuned it several times and i caught on and tuned it alittle more for that 13.9 103.88 run . I overpowered a rod though .

This was at 11 psi on street tires and a dam 2.3 60 ft . I coul dhavbe gone 13.5 or lower with slicks .

 

[Blake]

Why do you say that I was making 240 to 250 whp trapping almost 104 with the Mpi with no problems . What kind of numbers are you and Sam getting ou tof the Unichip. I would like to know . Confence me why not Mpi .

No numbers but enough power to chase down STI's. Putting us at least at 230 @10psi. I know im well over 240 when @ 12psi w/o extra injector setup.
With the same mods as you - the extra injectors.
Front Mount
Full Exhaust
Custom Street Tune
Intake(SRI)
Stock Injectors
Stock Turbo
Stock S Pipe



But I think you misread my (posts) I also said if I had it to do over again I would of dumped the piggy back alltogether. I would of gone full standalone from the begining.

Now onto the MPI I will quote myself "MPI is a good unit and for the price has no match". But as with all the systems be it unichip,mpi, etc...etc they all have thier faults. Look up Titanium-99 he had more problems with that unit than anyone should in a lifetime. Constant bucking, rich to lean issues. The mpi also changed its wireing instructions a few time, and there is alot of debate as to which one is best. Remember im just a rep I dont deal with alot of the mechanical/tuneing issues myself. For heavens sake I sell Bar B Q for a living. But ive seen enough to know enough(if that makes sense at all). And even after putting a good tune on the mpi it still gives problems. You for instance if I read right somewhere you had posted about one day having problems with it out of the blue. I think it was in the FREE Mpi help thread.

The unichips fault lies in the fact you cant tune it yourself. You have to pay for the tune. The turbo module on the unichip is a bit better, when the transition to boost takes place. But we can all get over a little back breaking TQ. Common problems are as follows; Switchs misplaced/mislabeled, Preprogrammed tune issues(causes cel to throw), Boost controller spike issues. Most of all these can be fixed by simply sending the unit back into unichip.


Im at work right now and have to run Ill edit/add to my post later tonight.

 

[mazdaspeed75]

I

Yes at one time i did ahave some bucking issue when it went from cold to hot . The tune needed alittle changing. You live in Dallas and Know how it is TO go from 30 degrees to 80 the next day. I think the Mpi IS A GOod STARTINg EMS foir the beginer. I just know i had one hell of a tune to trap 103.88 and hang with a turbo charged s2000 Heres a little vid of the runs 3rd run was close he got me at the end of the track 4th run it blew

Blown motor vid

 

[Blake]

Yes at one time i did ahave some bucking issue when it went from cold to hot . The tune needed alittle changing. You live in Dallas and Know how it is TO go from 30 degrees to 80 the next day. I think the Mpi IS A GOod STARTINg EMS foir the beginer. I just know i had one hell of a tune to trap 103.88 and hang with a turbo charged s2000 Heres a little vid of the runs 3rd run was close he got me at the end of the track 4th run it blew

Blown motor vid

Read my post again, no where did I knock the MPI, I almost bought one myself.

But again I said the if I<~~~ had it to do over again I would of gone standalone. For anyone wanting to make serious power, a standalone is a must. Yes both the MPI and Unichip are great starters but why change it when you could do it right from the start? If I would of done this I would not be in the market for a standalone ie Microtech/Haltech.

 

[mazdaspeed75]

Yea i can understand that for sure, but I still think i may go Mpi to start with . Sam spoke with me tonight on some things, I consedering the turbo cams test bed but i just dont know if i want to do this to my stock motor . But he it would be good to see what it would do to a stock motor at stock boost .

 

[GhostMercury]

so i think i decided on MPI..the price is more reasonable rite now than a stand alone, considering i can get the numbers i want with it.

but a question i have is what will i need besides the MPI to reach 250 whp with stock turbo..cause people were mentioning extra injecters???

also if i get the MPnick turbo upgrade will i spool faster or slower and will i have to run lower PSI?

and does the mpi do timing? and who tunes it?

 

[Blake]

yes mpi does timing, the extra injectors will be needed due to maxing out the stock ones pretty quick. The turbo upgrade is some port and polish work with a gt28r compressor wheel inserted. From my reading most people say it has more power, with the same spool up time (on the gt-25 there is little to none due to the size). The end user tunes or pays for the tune, im not positive but I know someone at nicks shop could do your tune. There are also a billion base maps everywhere on this forum. Your first stop should be to talk with Bigtimm not sure on spelling or if he is even on the forums anymore. Moeed, and Apocman are also very versed in the mpi and its tuneing, Moeed has the extra injector setup and would probably be more help.

 

[GhostMercury]

what do you do/need to setup extra injectors

 

[Captain KRM P5]

what do you do/need to setup extra injectors

PM kooldino

you need injector(s), a rail, power to the injector(s), mounting/injection port for that injector, fuel supply line and engine management to control it. you have to decide if you want the injector(s) in the manifold or in the intake pipe.

 

[GhostMercury]

if i just add bigger injectors to the stock ports wont i get the same outcome?
or will it cost alot more

can the mpi handle bigger injectors?

and does anybody have like a link to the actual mpi so i can read some stats on it and stuff

 

[Kooldino]

he is like rite by where my mom lives..anyone know the name of his shop..cause ill go pay him a visit

Do yourself a favor and don't go to Modern Performance.

Here's why you want to avoid Modern Performance like the plague:

http://www.mazdas247.com/forum/showthread.php?t=123634234

http://www.mazdas247.com/forum/showthread.php?t=123635963

And here's why you want to come to me instead. I'm an hour south of Modern Performance:

http://www.mazdas247.com/forum/showthread.php?t=123648100

http://www.mazdas247.com/forum/showthread.php?t=123643426

http://www.mazdas247.com/forum/showthread.php?t=123636604

http://www.mazdas247.com/forum/showthread.php?t=123628211

I can do what you need done to your car, and I can do it right. I've honestly lost track of how many cars came out of Nick's shop running terribly, and God knows how many of those cars I had to fix myself.

 

[Captain KRM P5]

if i just add bigger injectors to the stock ports wont i get the same outcome?
or will it cost alot more

can the mpi handle bigger injectors?

and does anybody have like a link to the actual mpi so i can read some stats on it and stuff

bigger injectors = standalone. unichip and mpi cannot handle those.

 

[GhostMercury]

dam..im talking to kooldino rite now..looks like i might have to go to his shop to get this done

 

[Blake]

bigger injectors = standalone. unichip and mpi cannot handle those.

On the contrary, unichip can control bigger injectors, and does a good job of it. Fixing to drop some 440s in myself.

 

[Blake]

dam..im talking to kooldino rite now..looks like i might have to go to his shop to get this done

Kooldino does know what he is doing on the MPI. Ive heard alot of great things about his tuning abilities and his knowledge of this unit.


I have heard alot of problems with the "shop". (being MPI's Shop)

 

[JDM Sam]

reasonable build hahahaha thats an oxymoron.