AFC-SplitSecond PSC1 Map Library

[CustomMSP]

For those curious individuals here's a picture of a B16 (left) vs FS (right) rod and piston.

 

[Ricktalife]

This is consistent with what used to be common knowledge. But with the wane in popularity of the platform, it doesn't exactly surprise me that things like this have to be re-discovered. LOL

Yea, next people will be asking what our engine code is.

 

[HKPRO5]

For those curious individuals here's a picture of a B16 (left) vs FS (right) rod and piston.

Interesting... you going to slap those in? lol

 

[CustomMSP]

Might be a low budget solution for those not afraid to experiment.

I'm finishing up my 440 map now. I think it's coming along well. I'm trying to keep the AFR at 12:1 from 5.5k to redline and at around 12.5:1 everywhere below that.

I'm using the original version "A" non-flashed MSP ecu, btw.

 

[Spiced MSP]

AFR pegs 10 at partial throttle above 1 psi, is that normal?

 

[justanothermp5]

nope, at part throttle mine still goes down to 13-12ish

 

[Spiced MSP]

it doesn't happen all the time, it guess it depends on your rpm. 3000 rpm+ its fine. A little below 3000, it might see 1 or 2 psi(to pass slower cars) and sometimes it will peg 10 and bog a little

 

[Ricktalife]

In that case, you know exactly where to adjust.

 

[cougar10agREDUX]

the AFC/FTC is not an exact science. it's just a basic piggyback. it's map table is only RPM and pressure. theres no way to fine tune for part throttle. so if you are running bigger injectors, your part throttle tune is going to suck. especially if you can hit full boost at like half throttle, like i do, it's going to be rich as s*** and theres nothing you can do about it except deal with it.

if you don't hit full boost under a decent load, it might run a little smoother.

you can try raising the activation pressure of output b to have the stock ECU tune part throttle since it factors in different TPS % at the same RPM and pressure.. I never tried this, i just left my output b at 0.1 psi

make sure output B is a few PSI LOWER than the max boost you run. do a datalog run and see where your boost is at through the whole run.

 

[Wagonbacker9]

the AFC/FTC is not an exact science. it's just a basic piggyback. it's map table is only RPM and pressure. theres no way to fine tune for part throttle. so if you are running bigger injectors, your part throttle tune is going to suck. especially if you can hit full boost at like half throttle, like i do, it's going to be rich as s*** and theres nothing you can do about it except deal with it.

if you don't hit full boost under a decent load, it might run a little smoother.

you can try raising the activation pressure of output b to have the stock ECU tune part throttle since it factors in different TPS % at the same RPM and pressure.. I never tried this, i just left my output b at 0.1 psi

make sure output B is a few PSI LOWER than the max boost you run. do a datalog run and see where your boost is at through the whole run.

The stock ECU is always correcting for part throttle, basically you just have to make sure your adjustments to that tune are safe throughout part and full throttle, but you're exactly right, because of the basic nature of the tuner, you do have to make some compromises.

 

[cougar10agREDUX]

yeah, if they set up MAP B to be TPS vs RPM to blend the two maps, it would be a great piggyback.

 

[Wagonbacker9]

to do it right, you'd really have to make a 3D map... MAP vs. RPM vs. TPS...

 

[justanothermp5]

nah i think 2d would be better

 

[HKPRO5]

Awesome! Im going to take a look at it now.

Right now im running 9.5psi on the SC, FMIC (2.5") vented BOV, WRX 400cc injectors, Headers,Looking to get the exhaust taken care of (2.5 catless)

Thanks!

 

[HKPRO5]

P5 ecu

 

[Silverspeed2015]

Lately i have been trying to tune my afc but it seems nearly impossible because the afrs are inconsistent, and change constantly, what could my problem be?

 

[Wagonbacker9]

Lately i have been trying to tune my afc but it seems nearly impossible because the afrs are inconsistent, and change constantly, what could my problem be?

I would call that a problem, but it probably has a cause of its own.

 

[CustomMSP]

P5 ecu

My map is designed for the MSP ecu which is completely different from the P5/ES.

Try this one instead. I tried to make it a little on the rich side just in case. You can always pull fuel across the board by 1% at a time if needed.

 

[HKPRO5]

With the map I have now I'm running really rich. I saved both maps so I'll try out the p5 one first. Thanks again.

 

[HKPRO5]

The map I have now is rich as hell.