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100MM MAF--overkill?

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Old Jan 13, 2010 | 02:50 PM
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Default 100MM MAF--overkill?
My winter build consists of adding worked 243s, a FAST 90, PTM 92 TB, and 42lb injectors to the mods I already have in my sig, among other things non-engine related.

I'm wondering now about where my greatest point of restriction will be. Will it be my stock MAF, or will that still support the airflow my engine will be pumping?

Would a 100MM MAF be overkill for my application?
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Old Jan 13, 2010 | 03:34 PM
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I don't think you would NEED the 100mm MAF at your power level but I'd recommend you least upgrade to the 85mm MAF and a larger air lid.
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Old Jan 13, 2010 | 04:09 PM
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Originally Posted by Fast Toys Performance Parts
I don't think you would NEED the 100mm MAF at your power level but I'd recommend you least upgrade to the 85mm MAF and a larger air lid.
I'm air-lid-less. 2004 GTO.
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Old Jan 13, 2010 | 04:12 PM
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Originally Posted by nmcqueen469
I'm air-lid-less. 2004 GTO.
Then just do the MAF. You can pick up any 85mm MAF but you are going to have to get a tune to make it work properly.
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Old Jan 13, 2010 | 05:12 PM
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pretty sure 04s had 85mm mafs right?
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Old Jan 13, 2010 | 05:31 PM
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Originally Posted by t/a98
pretty sure 04s had 85mm mafs right?
I believe the 04's just had the small maf (last year of LS1).
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Old Jan 13, 2010 | 05:31 PM
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Originally Posted by t/a98
pretty sure 04s had 85mm mafs right?
Not exactly sure, I figured they are 78 like the TBs.
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Old Jan 13, 2010 | 09:04 PM
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Stock '04 is 78mm. Check out SNL's 100mm MAF. It is what I'm running, but you will need to have it tuned.
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Old Apr 15, 2010 | 08:40 PM
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Originally Posted by hivoltagedriver
Stock '04 is 78mm. Check out SNL's 100mm MAF. It is what I'm running, but you will need to have it tuned.
do you know if your tuner had a hard time with that maf? i hear tsp maf was a bit on the tuff side to tune so im looking in for other options
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Old Apr 15, 2010 | 10:50 PM
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Why not just go speed density? No need to spend the extra cash on the mass air flow sensor. Gotta get it tuned either way.
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Old Apr 16, 2010 | 04:40 PM
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Originally Posted by Trevor.j
do you know if your tuner had a hard time with that maf? i hear tsp maf was a bit on the tuff side to tune so im looking in for other options
I talked to the guys at EFI Alchemy and they recommended the new style 100mm MAF. He said they've tuned a few cars w/ it & liked it alot. Since it looks like you'll be getting a new tune w/ all that stuff anyways it seems it's like one of those might as well mods.
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