The most common upgrade is the Z32 MAFS. It is easily compensated for by a ROM tune, S-AFC or Power FC. I don't really see a point to "upgrading" to anything else.

Jonas, you'll be fine at 1 bar with the Z32 MAFS. It can handle well over 400hp.

 

you can use a stock mafs for 1 bar all day long

 

ok because i read a thread on FA that the stock mafs looses its efficiency at around 10psi...so i just thought i would ask...

 

Mattback, I thought he was running an upgraded turbo. Although I do agree; I was running 1 bar for almost a year with the stock turbo and MAFS with no problems.

 

A MAFS doesn't lose efficiency, per se. It maxes out, or it doesn't. It's as simple as that.

 

your boost will creep at 15 psi which I believe is 1 bar??? Everyone I know has that problem with dynoing at 15 psi. The t25 can not hold that high

 

That has nothing to do with the capabilities of the stock MAFS. That is simply a turbo/wastegate problem.

 

It doesnt creep, it falls off The damn Wastegate is weak on this T25 stuffs. And yes you need to set up your ECU ROm whatever for Z32 thats why its not on my car yet! but you already knew that. Mr Jonas.....

 

he's going to most likely upgrade turbo with that 300z mafs. Even maybe getting a new wastegate.

 

OK, but what does that have to do with upgrading a MAFS. We already know that the Z32 MAFS will handle his goals. Turbo/wastegate choice has nothing to do with this topic.

Maybe it's just me...