SMT6 unit works!!

[igdrasil]

NEW SETUP:

WRX Turbo on stock manifold
External Wastegate
Extra Injector
8-9psi
Manual Transmission
MSP ECU

***FOLLOW THE PROYECT HERE - Oct 2006***:
http://www.mazdas247.com/forum/showthread.php?t=123646095



Dyno Graph w/ MSP ECU @ 7psi SAE COrrected 170whp
video: http://videos.streetfire.net/player.aspx?fileid=1B0FF7E6-6E97-4459-B248-75608D8F92D7

PICS

To make the long story short.

This is a friend's setup. He made his car turbo, non-intercooled, contacted me to get some suggestions, he just wants a bit more power out of his car.

Had a lot of problems with intercooler piping leaking, manifold leaks, etc. PINGING with just 3psi. I made him correct all that and to put an intercooler AND....the MPI Tunner.

Not having lots of money after all the corrections, he risked to order the SMT6 instead, I told him that I dont know If I could make it work. After 1 month of troubleshoot (2-3 times a week at most) the car is working and boosting 8psi with no problems. Ah...its auto trans, not shiftronic.

The SMT6 works different, orange wire (switch feature) sends 6v instead of 12v, makes it useless without a 6v-to-12v circuit, the software has limitations, wiring is similar, but not 100%.

I personally better like the MPI. But I made the SMT6 work on the protege. So I consider it a success.

 

[igdrasil]

Soon to be installed:

MAM Rods with modified stock piston!!

 

[Moeed]

Looks very clean. Congrats on a successful install!

 

[Bigg Tim]

So you're using Nick's TM to make it work??? How are you controlling fuel, if you don't have xtra injectors???

 

[azian6er]

the vortech and the fuel pump, just like spool kits...

-B

 

[2words]

wow! thats alot of work. but nice job. whats up with the wrx intercooler!! pretty nice engineering

 

[igdrasil]

So you're using Nick's TM to make it work??? How are you controlling fuel, if you don't have xtra injectors???

vortech fmu 12:1 and Walbro fuel pump.

Im not using Nick's TM, mine is just 3 relays in a box.

Analog fuel map is controlling O2 signal just like what the FM O2 clamp does.

 

[Bigg Tim]

vortech fmu 12:1 and Walbro fuel pump.

Im not using Nick's TM, mine is just 3 relays in a box.

Analog fuel map is controlling O2 signal just like what the FM O2 clamp does.

So you have the price of the SMT-6, fuel pump and FMU?? That would put you at about the MPI price but not with everything working the way the MPI does, no injector control and not as good control of the timing. It's good you have it working, but for the cost that's in it, you may as well go with something that already works the way it should. Good luck with it anyway.

 

[igdrasil]

So you have the price of the SMT-6, fuel pump and FMU?? That would put you at about the MPI price but not with everything working the way the MPI does, no injector control and not as good control of the timing. It's good you have it working, but for the cost that's in it, you may as well go with something that already works the way it should. Good luck with it anyway.

No...let me clarify.
I can have it to work on the stock injectors, but please...we are adults here, we all know MPI or SMT6 does NOT CONTROL stock injectors, it only modifies signals and make the ECU interpret.

Milton came to me with his car already made turbo non intercooled and FMU with the intercooler and fuel pump in hands. Took the car to the machine shop to fabricate the intercooler piping and I installed the fuel pump, in the meanwhile, he ordered the smt6.
I told him I wanted the MPI and extra injectors...he didnt like the idea of the extra injection....so I told him I could still use the FMU and not extra injectors and near stock feel until boost.
So I used the analog for O2 clamp.

You cannot count the fuel pump on the SMT6 budget because a reliable fuel pump is needed in ANY turbo setup.

 

[igdrasil]

And for all of you that are curious about all spent on this car including SMT6 and all cost of work and dyno tunning, gauges, gasoline, BOV, turbine, wires, hoses and other parts, etc.

Around $2500

 

[mp5jeff]

using an injen CAI as some of the IC piping? lol, anyhow cool setup for a decent price i guess

 

[Bigg Tim]

No...let me clarify.
I can have it to work on the stock injectors, but please...we are adults here, we all know MPI or SMT6 does NOT CONTROL stock injectors, it only modifies signals and make the ECU interpret.

Milton came to me with his car already made turbo non intercooled and FMU with the intercooler and fuel pump in hands. Took the car to the machine shop to fabricate the intercooler piping and I installed the fuel pump, in the meanwhile, he ordered the smt6.
I told him I wanted the MPI and extra injectors...he didnt like the idea of the extra injection....so I told him I could still use the FMU and not extra injectors and near stock feel until boost.
So I used the analog for O2 clamp.

You cannot count the fuel pump on the SMT6 budget because a reliable fuel pump is needed in ANY turbo setup.

Okay, that's cool. I was just trying to get some clarification on this. That is a great price to get setup for a turbo.

The injector control is control no matter how you look at it. If I want more fuel, then I change something and I get more fuel. Who cares if it's direct or not. I interperate control as me being able to change what something does.

You don't need a fuel pump when going turbo, I still have to stock pump and everything. I do use xtra injectors, but the stock pump gives enough fuel for them and the stock ones. So to say that any turbo setup need one is false!

 

[igdrasil]

problem is...that when you modify voltages, you are probably triggering other unknown responses like ignition timing...

For example, now that Im running MAP instead of MAF, i noticed some weird behaviour on the car. The thing is, that if you modify the MAF output (as always) in big differences, like sending 3.5v on the output while the MAF is reading 4.2v for instace, It doesnt matter if you manage to put 12:1 A/F thru extra injectors of FMU, the car will feel so damn slow. So Im thinking that actual MAF output, or at least what the ECU is receiving, is also correlated to ignition timing advance.

 

[MPNick]

problem is...that when you modify voltages, you are probably triggering other unknown responses like ignition timing...

For example, now that Im running MAP instead of MAF, i noticed some weird behaviour on the car. The thing is, that if you modify the MAF output (as always) in big differences, like sending 3.5v on the output while the MAF is reading 4.2v for instace, It doesnt matter if you manage to put 12:1 A/F thru extra injectors of FMU, the car will feel so damn slow. So Im thinking that actual MAF output, or at least what the ECU is receiving, is also correlated to ignition timing advance.

check out some of my post's about fuel system that control fuel only. You are 100% right. If you change the fuel/MAF voltage you will change the timing.

 

[miltont]

Correction on the Price $1688.00 has been used for my project.

And for all of you that are curious about all spent on this car including SMT6 and all cost of work and dyno tunning, gauges, gasoline, BOV, turbine, wires, hoses and other parts, etc.

Around $2500

 

[miltont]

Price on this 3 items
Vortech FMU 12:1 $190.00
Walbro Fuel Pump 255Lph $98.00
SMT6 $450.00

So you have the price of the SMT-6, fuel pump and FMU?? That would put you at about the MPI price but not with everything working the way the MPI does, no injector control and not as good control of the timing. It's good you have it working, but for the cost that's in it, you may as well go with something that already works the way it should. Good luck with it anyway.

 

[Bigg Tim]

Price on this 3 items
Vortech FMU 12:1 $190.00
Walbro Fuel Pump 255Lph $98.00
SMT6 $450.00

You got into turbo for a VERY nice price. The amount you spent on the SMT and things, you could of gotten a MPI and controlled things better with better support. Good luck anyway, enjoy the boost.

 

[Kooldino]

How exactly did you configure tha analog to clamp the O2?

 

[MetalSpeed]

Do you have a scan of the dyno?

 

[MPNick]

You got into turbo for a VERY nice price. The amount you spent on the SMT and things, you could of gotten a MPI and controlled things better with better support. Good luck anyway, enjoy the boost.

For about $50.00 less you could have got the MPI tuner.