MAF vs MAFless Tune
MAF vs MAFless Tune
Author
Discussion

S800VXR

Original Poster:

5,877 posts

231 months

Friday 18th December 2009
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I will be getting my car back soon (fingers crossed) and I understand that it will be a MAFless tune...? Now I will question Mark when I go up there but whats peoples comments regarding both tunes. My limited experiance seems to think for a road car a MAF equiped car is best but from a performance POV the MAFless setup is best but you will need to drop in new settings for hot drag days compared to a cold winter drive...? Will that need me to mimic the fast and the furious jap boys who flick open a laptop at the slightest change in humidity...? wink

ringram

14,702 posts

279 months

Friday 18th December 2009
quotequote all
There are well over 1.5 million mopar Hemi's running mafless.
What makes you think it wont handle things if its done properly?

Certain model years of MAF vehicles cannot even read the airflow requirements of an FI setup so a Mafless tune is more accurate and will perform better.

If you have issues with weather its because the tune isnt right, not because mafless wont work. It clearly can and does.

TerryS

1,382 posts

279 months

Friday 18th December 2009
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Also certain HSV's are Mafless from the factory.

Island boy hsv

726 posts

270 months

Friday 18th December 2009
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TerryS said:
Also certain HSV's are Mafless from the factory.

I think that HSV stopped producing Mafless cars in 2002-03.

Magic919

14,583 posts

232 months

Friday 18th December 2009
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You'll still have IAT, MAP, RPM and TPS presumably.

stigmundfreud

22,454 posts

241 months

Friday 18th December 2009
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MAF takes care of things when things start to wear and go to st. SD assums everything stays perfect all of the time. Intend selling it in a year or two, go MAFLess, want more power/smother transition, MAFLess. Want to keep it, keep it. Richard will poo poo me on this, tell us about 1.5 million other cars but wont point out the fact that rebuilds are cheap there and the atmospherics etc do not change that often :x

stigmundfreud

22,454 posts

241 months

Friday 18th December 2009
quotequote all
seriously though think about all those those cars built pre MAF that still work today. Its just a very good tool to provide a genericly safer way to motor. MAF fails you return to SD anyway.

I've ran maf and mafless its hardly anything in it, retained maf simply to counter for long term drifts that the MAF could help towards trimming back but if its a good base tune as said it will work

TerryS

1,382 posts

279 months

Friday 18th December 2009
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What is the limit of the stock MAF set up?

stigmundfreud

22,454 posts

241 months

Friday 18th December 2009
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I think the better question should be, will you ever notice the differnce other than on a piece of paper with a figure printed on it

TerryS

1,382 posts

279 months

Friday 18th December 2009
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I think the question in the context of this thread is perfectly valid!

stigmundfreud

22,454 posts

241 months

Friday 18th December 2009
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TerryS said:
I think the question in the context of this thread is perfectly valid!
Either question. If I was in Rogers shoes I too would be wanting ot make sure what I was getting is the best. It might be a requirement on his set up too. Ultimately I wouldnt worry too much with or witout, the supposed powergains vs the alleged benefits of running a MAF are open to question but in teh long rin the MAF is a tool that is supposed to also work towards keeping things in check, along with ltft and stft. Cars lived before without them

MadMaxHSV

1,816 posts

229 months

Friday 18th December 2009
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Correct me if i'm wrong, but also for a big high-airflow setup the MAF can get pegged at its limit of mesaurement and your effectively running on a crude Alpha N tune, whereas an SD tune can be tuned upto the boost levels your using.

TerryS

1,382 posts

279 months

Friday 18th December 2009
quotequote all
stigmundfreud said:
TerryS said:
I think the question in the context of this thread is perfectly valid!
Either question. If I was in Rogers shoes I too would be wanting ot make sure what I was getting is the best. It might be a requirement on his set up too. Ultimately I wouldnt worry too much with or witout, the supposed powergains vs the alleged benefits of running a MAF are open to question but in teh long rin the MAF is a tool that is supposed to also work towards keeping things in check, along with ltft and stft. Cars lived before without them
Would have been easier just to say you don't know wink

Yes there will be a maximum amount of air the stock MAF can support, hence the question. Having owned a fair few high powered cars, all running speed density, it wouldn't bother me at all.

Edited by TerryS on Friday 18th December 16:07

monkfish1

12,459 posts

255 months

Friday 18th December 2009
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The real answer is it varies depending on the car/engine/ecu.

anonymous-user

85 months

Friday 18th December 2009
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Mine has no MAF and runs fine. I think like a lot of tuners, Mark prefers to use the MAP sensor to measure air flow as it gives better results/throttle response when tuned on a dyno to create a bespoke tune. Don't worry Roger, it will be fine!

after_shock

8,751 posts

251 months

Friday 18th December 2009
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Im running without and all seems fine aswell

ferb

3,112 posts

241 months

Friday 18th December 2009
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My Ute has been mafless for 5 years without any problems. Have a look at this www.chipmaster.com.au/page2.html I've seen this car go, WOW thumbup

stigmundfreud

22,454 posts

241 months

Friday 18th December 2009
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wormus said:
Mine has no MAF and runs fine. I think like a lot of tuners, Mark prefers to use the MAP sensor to measure air flow as it gives better results/throttle response when tuned on a dyno to create a bespoke tune. Don't worry Roger, it will be fine!
i think you might also find that you then need to tune the MAF later but its not too hard to rescale but adds time and another thing to do

jamiep

1,791 posts

250 months

Friday 18th December 2009
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I gained about 40bhp on my old monaro when Mark did a maffless remap.



Edited by jamiep on Friday 18th December 20:01

tiler

693 posts

267 months

Friday 18th December 2009
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5252?