I Wanna know if the DE Maf is the same as the VE ? and what maf i should be runnin in my VE.

I Wanna know if the DE Maf is the same as the VE ? and what maf i should be runnin in my VE.

The ve AFM

i was using a n60 with a calum program...

VE and DE MAFs are not the same. BUT, you can (and many do) run the DE MAF on a VE. The key is to make sure that your ECU is programmed for the MAF that you are running, otherwise the car will not run well (if at all). Beyond that, the VE MAF is a larger diameter straight through, so it might be the preferred one, but dyno testing does not show consistently higher output from a VE MAF compared to a DE MAF with a stock or lightly modified VE. One small consideration is that the VE MAF install requires that the B13 wiring harness be cut to wire it up (I'm not sure about B14 harness).

If you search the forum this is all explained with much more detail.

VE and DE MAFs are not the same. BUT, you can (and many do) run the DE MAF on a VE. The key is to make sure that your ECU is programmed for the MAF that you are running, otherwise the car will not run well (if at all). Beyond that, the VE MAF is a larger diameter straight through, so it might be the preferred one, but dyno testing does not show consistently higher output from a VE MAF compared to a DE MAF with a stock or lightly modified VE. One small consideration is that the VE MAF install requires that the B13 wiring harness be cut to wire it up (I'm not sure about B14 harness).

If you search the forum this is all explained with much more detail.

B14 is direct plug in for the VE MAF..

And with the SR20DE ECU, DE MAF, VE Injectors(to insure it dont lean out)
The Car will run, drive and idle decent..
But i wouldnt recommend running it this way for long, and you will not want to try to run it hard..

My ecu is program for ser maf. The one i gat is G20 p10

im using a n60 maf.

de maf

Key phrase being there are choices...no such thing as the right one...just get the right ecu program though... good to see the different setups... i use the de maf

im using a maxima maf. its bout 3 iinch in size. alot better than the de. i had calum program my comp. for it

im using a maxima maf. its bout 3 iinch in size. alot better than the de. i had calum program my comp. for it

Just because the Maxima MAF is straight-through and 3" inch diameter, does not mean that it is "a lot better than the DE" MAF which is smaller diameter, a different design and appears to support less flow. JWT claims that there is no measurable difference in power output between the 2 MAFs in a properly tuned stock SR20VE.

Does anyone have dyno testing that shows real differences between these 2 MAFs in back to back testing?

do you like to breathe? well if andre told me to use it. i dont think he would tell me to buy it if it wasnt better. he already has a post on here explaining what maf to use and what horse power you can make with it. he has all this stuff down to a science

I like to breathe, and I appreciate all the groundbreaking work that Miko has done for us. But most of all, I like data.

Andreas has posted about the output ranges for various MAFs, and I'm sure that the Maxima MAF has a higher capacity than a DE MAF. That does not mean that it makes more power (or is better) than the DE MAF on any particular VE setup. If Andreas (or anyone) has posted back to back controlled testing showing a benefit of using the Maxima MAF on a VE, please post the link.

In the absence of that data, all I'm saying is that in developing the first performance tunes for the VE, Jim Wolf Technology claims that they have found no significant difference in the power generated using DE and Maxima MAFs on basic VE setups. I do not have their data, only the word of a tech. I'd love to see data, but this is the information that I have.

Until I see some valid data, I will continue to reject the notion that the Maxima MAF is better than the DE MAF for VE applications.

Key phrase is "basic VE setups". In high hp applications (210-215+) with headwork and bottom end mods the Maxima,Pathfinder or N60 MAF would be a better choice. DE MAFs can support close to 200-220 hp but they are just about maxed out at that point. Lots of DE mafs have been used on VEs with no problem but it makes you wonder why the stock VE MAF is similar to the MAFs listed above on the stock VE motor. Nissan made the change for a reason.

do all these straight through mafs wire up the same? meaning the ve, xterra, z32 ect.

Key phrase is "basic VE setups". In high hp applications (210-215+) with headwork and bottom end mods the Maxima,Pathfinder or N60 MAF would be a better choice. DE MAFs can support close to 200-220 hp but they are just about maxed out at that point. Lots of DE mafs have been used on VEs with no problem but it makes you wonder why the stock VE MAF is similar to the MAFs listed above on the stock VE motor. Nissan made the change for a reason.

de maf is maxed out at 250hp at 3bar. 290hp at 4 bar so for a ve a de maf should be fine.

a couple yrs ago while dyno testing some different VE header designs i (we) had the opportunity test a maxima maf w/NO filter (just a bell mouth) in a hotshot warm air setup VS a de maf in a hotshot cai w/jwt pop. we used an apexi power fc for tuning. the cams were experimental regrinds. at the ~200-205whp level the de maf on a cai w/jwt pop was superior through most of the power band. there was no mistaking the "cai hump" in the torque curves. (more area under the curve). the lack of a filter on the warm air may have skewed the results, but they are what they are.
my VE ran for 30k miles on 20ve cams, de maf, de ecu, ve injector/nismo afpr combo. it worked fine for me. frustration arises when you upgrade the cams and hit fuel cut when the N1's are still pulling like a freight train. then it's time to upgrade the ecu...perpetuating the vicious circle:)
.... as always, ymmv

Key phrase is "basic VE setups". In high hp applications (210-215+) with headwork and bottom end mods the Maxima,Pathfinder or N60 MAF would be a better choice. DE MAFs can support close to 200-220 hp but they are just about maxed out at that point. Lots of DE mafs have been used on VEs with no problem but it makes you wonder why the stock VE MAF is similar to the MAFs listed above on the stock VE motor. Nissan made the change for a reason.

I agree. Everything that you say here is consistent with my understanding at this point.

And thanks, Teal, for sharing your experience. These are interesting findings that I was not aware of.

Bill

de maf is maxed out at 250hp at 3bar. 290hp at 4 bar so for a ve a de maf should be fine.

:confused:

I think you have the maf mixed up with the injector page. Fuel pressure has nothing to do with what a maf can flow...

:confused:

I think you have the maf mixed up with the injector page. Fuel pressure has nothing to do with what a maf can flow...

Yeah, that's what I was thinking... :poke: