Want to eliminate your MAF?
I can't say it enough. These features can and should be incorporated into the UTEC. It is a shame that we will be forced to ditch the UTEC if we want these features.
MJ Where the hell are you????? Time to chime in buddy!
MJ Where the hell are you????? Time to chime in buddy!
Originally Posted by Nez136
that sux, i like the utec, i dont want to get rid of it
Bob assured me this would run at over 3000 Hz. Thats good enough for over 500rwhp! If you have someone who can custom flash your ECU local its really not worth it.
well now, we'er basing our decision on speed density, it could be a different outcome if the blowthrough is used, the odds are slim. i might just end up waiting for TurboXS to come out with their set up(fu<kin slow *** company)
Originally Posted by EvoTech
I can't say it enough. These features can and should be incorporated into the UTEC. It is a shame that we will be forced to ditch the UTEC if we want these features.
MJ Where the hell are you????? Time to chime in buddy!
MJ Where the hell are you????? Time to chime in buddy!
I think alot of you are misunderstanding the relationship of the UTEC and this device..
MAFTPro is basically reproducing what the MAF would normally produce for airflow.. the UTEC is the tuning device.. If you use the MAFTpro for tuning, you will only be altering the MAF signal (and CAS signal if you use its timing features)
1) You need to accurately reproduce the MAF signal output curve That is what the adjustment features on the MAFTPRO should be used for, you can do this with the UTEC in passthrough.
2) Your performance tuning should be done through the UTEC for timing and fuel, why? because in order to avoid ECU limitations you use the UTEC in the same way as before (unless you don't want to)
If TurboXS has something up their sleeves, they really need to chime in as soon as possible.. But the MAFTPro shouldn't be used to replace the UTEC, altering the MAF signal to make the car run richer or leaner, is functionally different than how the UTEC works to do tuning. If you just offset the MAF signal, its the same as using an S-AFC, which means the altered signal indirectly alters the ECU's timing, but its also at the limitations of the factory ECU so timing won't be exactly where you want or need it, and the ECU will try to switch between different high and low octane maps depending on what it detects.
Its the same thing with my blowthrough setup, I could use it to bump the MAF signal up or down and affect the OEM ECU's tune, but it would still get fuel cut, MAF cut, or boost cut, and the factory RPM limiter would still be in effect.
The MAFTPro has alot of cool features, but it really only should be used as a speed density or MAF conversion box and not to replace your current tuning solution.. Once you adjust the MAFTPro correctly, the speed density output should closely match the OE Maf reading.. Once thats done correctly, you can use the UTEC in the same manner you did previously.
you are not actually tuning on top of the UTEC, but you do have to make sure your replacement signal matches the stock signal as closely as possible... If the output is low, its because the settings are low.. on a stock ECU that would result in running leaner.. on the UTEC it would result in the car being in a lower load site.. but its IMPERATIVE that you match the output as closely as possible...
MAFTPro is basically reproducing what the MAF would normally produce for airflow.. the UTEC is the tuning device.. If you use the MAFTpro for tuning, you will only be altering the MAF signal (and CAS signal if you use its timing features)
1) You need to accurately reproduce the MAF signal output curve That is what the adjustment features on the MAFTPRO should be used for, you can do this with the UTEC in passthrough.
2) Your performance tuning should be done through the UTEC for timing and fuel, why? because in order to avoid ECU limitations you use the UTEC in the same way as before (unless you don't want to)
If TurboXS has something up their sleeves, they really need to chime in as soon as possible.. But the MAFTPro shouldn't be used to replace the UTEC, altering the MAF signal to make the car run richer or leaner, is functionally different than how the UTEC works to do tuning. If you just offset the MAF signal, its the same as using an S-AFC, which means the altered signal indirectly alters the ECU's timing, but its also at the limitations of the factory ECU so timing won't be exactly where you want or need it, and the ECU will try to switch between different high and low octane maps depending on what it detects.
Its the same thing with my blowthrough setup, I could use it to bump the MAF signal up or down and affect the OEM ECU's tune, but it would still get fuel cut, MAF cut, or boost cut, and the factory RPM limiter would still be in effect.
The MAFTPro has alot of cool features, but it really only should be used as a speed density or MAF conversion box and not to replace your current tuning solution.. Once you adjust the MAFTPro correctly, the speed density output should closely match the OE Maf reading.. Once thats done correctly, you can use the UTEC in the same manner you did previously.
you are not actually tuning on top of the UTEC, but you do have to make sure your replacement signal matches the stock signal as closely as possible... If the output is low, its because the settings are low.. on a stock ECU that would result in running leaner.. on the UTEC it would result in the car being in a lower load site.. but its IMPERATIVE that you match the output as closely as possible...
Originally Posted by joeymia
There really isn't a need for UTEC with this now Bob assured me this would run at over 3000 Hz. Thats good enough for over 500rwhp! If you have someone who can custom flash your ECU local its really not worth it.
Bob assured me this would run at over 3000 Hz. Thats good enough for over 500rwhp! If you have someone who can custom flash your ECU local its really not worth it.It would be like running an S-AFC without a reflash to overcome the stock limitations.. offsetting the signal is an old school way of tuning, and it works pretty well, but you will run into those limitations.
It takes nothing away from the value of the MAFTPro, but it should not be used as your tuning solution..
Originally Posted by MalibuJack
I think alot of you are misunderstanding the relationship of the UTEC and this device..
MAFTPro is basically reproducing what the MAF would normally produce for airflow.. the UTEC is the tuning device.. If you use the MAFTpro for tuning, you will only be altering the MAF signal (and CAS signal if you use its timing features)
1) You need to accurately reproduce the MAF signal output curve That is what the adjustment features on the MAFTPRO should be used for, you can do this with the UTEC in passthrough.
2) Your performance tuning should be done through the UTEC for timing and fuel, why? because in order to avoid ECU limitations you use the UTEC in the same way as before (unless you don't want to)
If TurboXS has something up their sleeves, they really need to chime in as soon as possible.. But the MAFTPro shouldn't be used to replace the UTEC, altering the MAF signal to make the car run richer or leaner, is functionally different than how the UTEC works to do tuning. If you just offset the MAF signal, its the same as using an S-AFC, which means the altered signal indirectly alters the ECU's timing, but its also at the limitations of the factory ECU so timing won't be exactly where you want or need it, and the ECU will try to switch between different high and low octane maps depending on what it detects.
Its the same thing with my blowthrough setup, I could use it to bump the MAF signal up or down and affect the OEM ECU's tune, but it would still get fuel cut, MAF cut, or boost cut, and the factory RPM limiter would still be in effect.
The MAFTPro has alot of cool features, but it really only should be used as a speed density or MAF conversion box and not to replace your current tuning solution.. Once you adjust the MAFTPro correctly, the speed density output should closely match the OE Maf reading.. Once thats done correctly, you can use the UTEC in the same manner you did previously.
you are not actually tuning on top of the UTEC, but you do have to make sure your replacement signal matches the stock signal as closely as possible... If the output is low, its because the settings are low.. on a stock ECU that would result in running leaner.. on the UTEC it would result in the car being in a lower load site.. but its IMPERATIVE that you match the output as closely as possible...
MAFTPro is basically reproducing what the MAF would normally produce for airflow.. the UTEC is the tuning device.. If you use the MAFTpro for tuning, you will only be altering the MAF signal (and CAS signal if you use its timing features)
1) You need to accurately reproduce the MAF signal output curve That is what the adjustment features on the MAFTPRO should be used for, you can do this with the UTEC in passthrough.
2) Your performance tuning should be done through the UTEC for timing and fuel, why? because in order to avoid ECU limitations you use the UTEC in the same way as before (unless you don't want to)
If TurboXS has something up their sleeves, they really need to chime in as soon as possible.. But the MAFTPro shouldn't be used to replace the UTEC, altering the MAF signal to make the car run richer or leaner, is functionally different than how the UTEC works to do tuning. If you just offset the MAF signal, its the same as using an S-AFC, which means the altered signal indirectly alters the ECU's timing, but its also at the limitations of the factory ECU so timing won't be exactly where you want or need it, and the ECU will try to switch between different high and low octane maps depending on what it detects.
Its the same thing with my blowthrough setup, I could use it to bump the MAF signal up or down and affect the OEM ECU's tune, but it would still get fuel cut, MAF cut, or boost cut, and the factory RPM limiter would still be in effect.
The MAFTPro has alot of cool features, but it really only should be used as a speed density or MAF conversion box and not to replace your current tuning solution.. Once you adjust the MAFTPro correctly, the speed density output should closely match the OE Maf reading.. Once thats done correctly, you can use the UTEC in the same manner you did previously.
you are not actually tuning on top of the UTEC, but you do have to make sure your replacement signal matches the stock signal as closely as possible... If the output is low, its because the settings are low.. on a stock ECU that would result in running leaner.. on the UTEC it would result in the car being in a lower load site.. but its IMPERATIVE that you match the output as closely as possible...
What good is an output of 3000hz if the stock ECU cuts fuel at 2200hz.. ya know? Ultimately the speed density or MAF replacement features should be incorporated into the UTEC, or a single tuning device, but keep in mind the differences before you commit to perminently removing the UTEC...
Originally Posted by MalibuJack
What good is an output of 3000hz if the stock ECU cuts fuel at 2200hz.. ya know? Ultimately the speed density or MAF replacement features should be incorporated into the UTEC, or a single tuning device, but keep in mind the differences before you commit to perminently removing the UTEC...
Originally Posted by joeymia
Thanks for clearing that up. In my case I have a tuner who is great with the stock ecu. He's going to fix the timing up so it will work correctly with the altered MAF output. Going to dyno tune tomorrow so hopefully i'll have it setup nicely. I rather just sell the UTEC and pick up another mod because honestly once I have the timing and ecu limitations raised/removed it will be just as good.
Originally Posted by MalibuJack
Completely understandable.. If your looking for a fairly static tune, and have little interest in tuning yourself, then the MAFTPro and a Reflash are a great alternative.. The disadvantage is if you need different tunes for different conditions, thats where the UTEC really excels....
Originally Posted by joeymia
i'll never see 2200hz on this setup. I don't plan on getting a bigger turbo than a 20g. I don't even think with the 20g the ECU will see 2200...
I understand your point from the other post just after the one I Just did..
But fuel cut happens within a moving window, if the MAF reading is higher at a particular RPM then the ECU expects, it cuts fuel.. But you already said you were interested in a reflash so thats ok.You should spend as much time as possible reproducing the stock signal curve with the MAFTPro before you get a retune.. Then get the retune (whatever type of EM you want) The good news is once that is done, you can then use the MAFTPro or other tuning device to make minor alterations as needed... But I spent a few months analyzing and logging the stock MAF curve to reproduce it closely with my MAF replacement setup, that is what gave me a car that was incredibly drivable and smooth.
Originally Posted by MalibuJack
I understand your point from the other post just after the one I Just did.. But fuel cut happens within a moving window, if the MAF reading is higher at a particular RPM then the ECU expects, it cuts fuel.. But you already said you were interested in a reflash so thats ok.
You should spend as much time as possible reproducing the stock signal curve with the MAFTPro before you get a retune.. Then get the retune (whatever type of EM you want) The good news is once that is done, you can then use the MAFTPro or other tuning device to make minor alterations as needed... But I spent a few months analyzing and logging the stock MAF curve to reproduce it closely with my MAF replacement setup, that is what gave me a car that was incredibly drivable and smooth.
But fuel cut happens within a moving window, if the MAF reading is higher at a particular RPM then the ECU expects, it cuts fuel.. But you already said you were interested in a reflash so thats ok.You should spend as much time as possible reproducing the stock signal curve with the MAFTPro before you get a retune.. Then get the retune (whatever type of EM you want) The good news is once that is done, you can then use the MAFTPro or other tuning device to make minor alterations as needed... But I spent a few months analyzing and logging the stock MAF curve to reproduce it closely with my MAF replacement setup, that is what gave me a car that was incredibly drivable and smooth.
Originally Posted by joeymia
Well they plan on doing timing control and some other features in the future. For now this will work great for me. With the UTEC I rarely changed settings once i got it dialed in. The big obstacle with my setup will be weather but in Miami the weather is always hot.
It doesnt matter to me what you use for engine management, my only point is you need to spend as much time as you can getting the output of the MAFTPro to match the stock MAF's signal before you try to tune the car.