Ok well its been a while since we discussed this for a s/c application and I want to here everyone opinions now that people have time to think about it

Im ordering my JWT on monday and i need to know my final decision if I should add the Z32 MAF or stick with A32 MAF ?? I know a few months back people were having backfiring issues at 4K and I dont wanna run into a problem were I order the JWT and when it gets here, I wont be able to get the MAF to work with the car...

1) Charged Side and take the risk 2) Uncharged Side Somehow 3) NOT AT ALL ???

-matt

 

Since you have the cartech anyway - you can deal with the maf maxing out via the fmu.... i say stick with the cartech - I'm @ 13 psi w/ the turbo - maf is basically maxed - and i'm at a 9:1 a/f(working on getting that leaned out of course

 

in theory the less parts you have in a system, the more reliable it tends to be. in this case, allowing fuel to be determined by the maf means you have a much simpler system then running the stock maf and using a fmu. the only dillema with this is that it is hard to place the maf in the correct location so there is a chance for problems. unless you plan on putting it where it was made to be, i wouldnt use it at all. of course, this is my opinion - there are obviously people who have it on the charged side that have yet to run into any problems but if it was my car i wouldnt be adding uneeded risks such as that when there are already other potential hazrads to the motor present (ie. boost). if it were me, i would use the a32 maf and a fmu - unless of course i was putting the z32 maf in the correct location. if the z32 maf was placed correctly, then that is the safer and more effective of the two choices - and i would definetely do that instead.

 

Well then, in reality, why not go with the setup - a32/fmu- which is used by many members successfully- that WILL WORK for sure -vs the Z32 maf/no fmu setup that has akward results?....

For me the decision for the fmu is clear cut.... the Z32 maf route seems to have potential - but not worth the risk of hacking up piping for a mod that may/may not work.

 

my point exactly. stick with what is proven to work unless you are willing to pioneer in new territory. there is nothing wrong with trying new things - that not only increases your knowledge but adds to the community as well. you cannot expect things to work perfectly though when the method has not yet been perfected. if you dont want to run into problems that cannot be immediatly found and addressed, then dont use the z32 maf - but if you are willing to test something that may indeed have more potential in the long run - then by all means use it and give us feedback.

 

Well i was gonna go with the Z32 MAF, FMU and the JWT...with the JWT i dont even need the FMU but i was going to keep it to add fuel up top so I wont lean out...I dont wanna supliment the MAF for the FMU at all becuause I will be getting plenty of fuel delivery via the JWT computer...execpt up top

-matt

 

i doubt you will lean out - jwt is notorious for being a little rich in all their maps, but good luck on whatever you choose. i will have to be making the same decision soon as well.

 

Agreed... not to mention - now that you're using the fmu - it kinda makes the jwt ecu pointless.