110mm Maf
110mm Maf 
03-27-2012, 01:05 PM
#6
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03-27-2012, 01:37 PM
#8
On The Tree
If you can make the MAF work, there is no reason not to use it. When you do a MAP tune you are cooking in the VE into the surface. If something changes you could go richer or leaner at the same intake pressure. The same condition on a MAF tune and the A/F ratio is still spot on.
03-27-2012, 02:42 PM
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if you can make the maf work, there is no reason not to use it. When you do a map tune you are cooking in the ve into the surface. If something changes you could go richer or leaner at the same intake pressure. The same condition on a maf tune and the a/f ratio is still spot on.
03-27-2012, 03:36 PM
#10
FormerVendor
03-27-2012, 04:46 PM
#11
On The Tree
Richer: The air filter gets plugged up or the exhaust hangs low and gets smashed partially shut hitting a bump. The engine now flows less air than it used to. It will run richer than it did previously.
Leaner: Air filter falls off. You now have an extra 50hp of air in the system that you didn't previously on a 700 hp engine. You'll be that much lean.
Leaner: Air filter falls off. You now have an extra 50hp of air in the system that you didn't previously on a 700 hp engine. You'll be that much lean.
03-27-2012, 05:01 PM
#12
I have done SD tunes and MAF. Currently I have a 4.5 inlet for a 2.9 KB, its a 115mm inlet. It will most definately stay under the 12,200Hz limit of my ECU, just have to scale the G/Cyl tables 
03-27-2012, 05:21 PM
#13
On The Tree
This. If I remember correctly a slot MAF in a 4" tube will support ~1000hp of flow.
03-27-2012, 05:22 PM
#14
FormerVendor
Richer: The air filter gets plugged up or the exhaust hangs low and gets smashed partially shut hitting a bump. The engine now flows less air than it used to. It will run richer than it did previously.
Leaner: Air filter falls off. You now have an extra 50hp of air in the system that you didn't previously on a 700 hp engine. You'll be that much lean.
Leaner: Air filter falls off. You now have an extra 50hp of air in the system that you didn't previously on a 700 hp engine. You'll be that much lean.
You could also say, maf gets dirty and it runs a point leaner.
03-27-2012, 05:49 PM
#15
On The Tree
There are pro's and cons to both.
I changed cam timing on my turbo Audi a couple degrees. I had to retune half the map. Had it been a MAF tune, I wouldn't have had to do anything. Up to a certain point I would prefer a MAF tune. Once you start making really big power it doesn't make much sense though. There just gets to be too much math going on.
I changed cam timing on my turbo Audi a couple degrees. I had to retune half the map. Had it been a MAF tune, I wouldn't have had to do anything. Up to a certain point I would prefer a MAF tune. Once you start making really big power it doesn't make much sense though. There just gets to be too much math going on.
03-28-2012, 05:54 AM
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I think that the 100mm is running our around 750-800RWHP and if I will make new 115mm tube that should cower 950-1000 RWHP ? Any one using maf in the 900-1000 RWHP level ?
