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changed maf = supercar!!!!! explain

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Old Mar 17, 2011 | 07:34 PM
  #16  
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coming to the end of this thread and glancing at the title of it made me "lol"
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Old Mar 17, 2011 | 09:37 PM
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how could i tell the other maf was bad? i only replaced it because it was cracked at bottom an turns out the replacement is to
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Old Mar 17, 2011 | 10:00 PM
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Originally Posted by boney31
how could i tell the other maf was bad? i only replaced it because it was cracked at bottom an turns out the replacement is to
I'm wondering the same thing? How do you know for if it's bad?
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Old Mar 18, 2011 | 10:14 AM
  #19  
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Originally Posted by boney31
how could i tell the other maf was bad? i only replaced it because it was cracked at bottom an turns out the replacement is to
Originally Posted by Kira X
I'm wondering the same thing? How do you know for if it's bad?
test it.

https://www.clublexus.com/forums/sc-...on-issues.html
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Old Mar 18, 2011 | 05:14 PM
  #20  
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If your car has a defective or already deteriorating MAF chances are by replacing the MAF with a new one will regain some of that performance and economy you have lost.

However is true for many car makers if you replace a MAF with a larger diameter, you could increase the power a little further. The 240sx guys tend to get MAFs from Z32/R32-34/ even the mustang 3.5 inch diameter MAF provided a increase in low end TQ on the dyno.

How it pans out for the SC300/SC400 im not to sure, I haven't done a search on it yet.
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Old Mar 18, 2011 | 07:49 PM
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i only replaced the sensor
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Old Mar 19, 2011 | 12:49 AM
  #22  
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i wonder if there is a Maf swap upgrade for 2jz

I have a Q45 n90 Maf on my Nissan
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Old Mar 19, 2011 | 01:09 PM
  #23  
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Is there a larger MAF that the SC400 people can use? Anyone know?
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Old Mar 19, 2011 | 02:19 PM
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I know the v8 MAF has a larger housing and is a direct plug in on the 2jz motor

I also know that the 2jz guys can upgrade to 440cc injectors and the 1uz MAF for a quick and easy power upgrade and if you have a SAFC you can maximize the performance boost

Last edited by drft_n_sc; Mar 19, 2011 at 02:24 PM.
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Old Mar 19, 2011 | 03:25 PM
  #25  
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Originally Posted by drft_n_sc
I know the v8 MAF has a larger housing and is a direct plug in on the 2jz motor

I also know that the 2jz guys can upgrade to 440cc injectors and the 1uz MAF for a quick and easy power upgrade and if you have a SAFC you can maximize the performance boost
Is there anything like that, that the SC400 people can do?
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Old Mar 22, 2011 | 06:06 PM
  #26  
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guys i bought a new fmz3ayy2(a working one) an compared it to fmz3ayy1 an heres how she shapes up.

fmz3ayy2
pros:
super smooth ride
smooth shift
clean engine sound
50-100 soft peddle easy acceleration

cons:
lag from take off
lag from getting off her then getting back on her



fmz3ayy1
pros:
very powerful(normal feels like power, power feel like u r driving a truck)
1-3 gear shift is fast(acceleration is night an day)
down shift so quick that at high speed u can get off her then back on with no lag!!!!!
mpg
50-100 harder peddle but feels like u r in complete control of car

cons:
engine sound
feel road more but still pretty smooth
down shift hard as hell when coming to complete stop or coming down a hill
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Old Mar 22, 2011 | 06:57 PM
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Originally Posted by drft_n_sc
I know the v8 MAF has a larger housing and is a direct plug in on the 2jz motor

I also know that the 2jz guys can upgrade to 440cc injectors and the 1uz MAF for a quick and easy power upgrade and if you have a SAFC you can maximize the performance boost
Will the V8 MAF work on the 98 SC300?
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Old Mar 22, 2011 | 07:32 PM
  #28  
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Originally Posted by horent135
Will the V8 MAF work on the 98 SC300?
the thing about the 1uz maf on another motor is not the sensor, but the size of the housing. the jz/7m housings are about 1/8-1/4 inch smaller diameter. larger diameter=more air in. upgrade the injectors at the same time, or you'll go lean, really, really badly.
7mgte and 1uz sensors are the same. I believe the 2jzgte has the same sensor, too but haven't worked on one to be sure.
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Old Mar 22, 2011 | 08:16 PM
  #29  
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Jan
Originally Posted by boney31
guys i bought a new fmz3ayy2(a working one) an compared it to fmz3ayy1 an heres how she shapes up.

fmz3ayy2
pros:
super smooth ride
smooth shift
clean engine sound
50-100 soft peddle easy acceleration

cons:
lag from take off
lag from getting off her then getting back on her



fmz3ayy1
pros:
very powerful(normal feels like power, power feel like u r driving a truck)
1-3 gear shift is fast(acceleration is night an day)
down shift so quick that at high speed u can get off her then back on with no lag!!!!!
mpg
50-100 harder peddle but feels like u r in complete control of car

cons:
engine sound
feel road more but still pretty smooth
down shift hard as hell when coming to complete stop or coming down a hill
How would the maf affect how much of the road you feel?
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Old Mar 22, 2011 | 08:27 PM
  #30  
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Easiest way to test a MAF is simply to unplug your battery for an hour.

Your ECU will reset and have to take new readings. If it runs the same, your maf is good. If it runs like crap your maf is bad. The ECU runs off the cache memory in the ECU for it's baseline settings, it only adjusts fine increments from the MAF as you drive. When it has to completely reset, it won't come back alive so well if the MAF is in bad shape.
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