Who has used the stock MAF with FAST 90/90?
11-05-2005, 09:48 AM
#1
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Who has used the stock MAF with FAST 90/90? I got my stocker de-screened and semi ported. The air divider is still there but all edges are smoothed out or sharpened. I read somewhere on here the stock MAF outflows the stock TB, So Im thinking my stock MAF can hang with the 90/90. I dont want any tuning issues that come with the 85mm MAF sometimes. Does anyone have numbers with the stock MAF and 90/90 before and after? Thanks.
11-05-2005, 11:43 PM
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I'm running the SLP 85mm MAF, but I honestly dont think it's worth it. I believe jason dyno tested his car with 85mm lid/maf and picked up like 1.5rwhp over the 78mm stuff.....and that could be dyno error. You'll be fine with your stock maf.
11-06-2005, 09:34 AM
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Thanks guys. did a search and found out Big Rodney is using his stocker with his cam only T-REX setup. I dont want issues that come with those POS MAFs.
11-06-2005, 11:52 AM
#7
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I would go SD. That's the way I went, and I love every second of it. My MAF is now in the trunk of my car and will be keeping some other junk company in a landfill as soon as I get around to throwing it away. 
If you really want to keep it, at least make sure it's recalibrated. I guarantee it's off now. 
If you really want to keep it, at least make sure it's recalibrated. I guarantee it's off now. Trending Topics
11-07-2005, 03:35 PM
#13
Yes, and it has a different table in the PCM vs. yours. However with a program like HPTuners you can cut and paste the table from one car to another. I'm 99% sure Tony drives a vette so his car would come with that MAF.
PACE sells a modded 85mm Z06 MAF that is ready for the LS1 table in the f-bods. I'm using it on my H/C car. And will probably keep it when I get the Mamofied FAST 90/90.
If I had the cash, I would go dyno again with the stock MAF to compare for us all. Maybe in the spring.
PACE sells a modded 85mm Z06 MAF that is ready for the LS1 table in the f-bods. I'm using it on my H/C car. And will probably keep it when I get the Mamofied FAST 90/90.
If I had the cash, I would go dyno again with the stock MAF to compare for us all. Maybe in the spring.
11-07-2005, 06:10 PM
#14
Once you go heads/cam/FAST 90/90, the MAF becomes the choke point of the intake tract. I gained 28 rwhp by swapping from the LS6 intake/ported TB/ stock MAF to the Mamo ported FAST with NW 90 and SLP 85mm MAF. The SLP MAF flows quite a bit more than the stock MAF, but even with it I was pulling 2-3 KPa of vacuum at WOT. By going SD tuning and removing the 85mm MAF, my vacuum is now only 1-2 KPa and I've picked up another 5 rwhp. At my hp level, I feel that going from a stock MAF to no MAF (replaced by a 4" pipe) is worth at least 10 rwhp.
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2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2018 Cadillac Escalade 6.2L A10 Pat G tuned.
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2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2018 Cadillac Escalade 6.2L A10 Pat G tuned.
LS1,LS2,LS3,LS7,LT1 Custom Camshaft Specialist For custom camshaft help press here.
Custom LSX tuning in person or via email press here.
11-07-2005, 06:53 PM
#15
It would seem that 99% of the guys that swapped MAF's and made any verifiable power have been M6 cars. What are the A4 guys like myself supposed to do?
I will have my new forged short block in 3-4 weeks, and I have my "Mamo-improved" parts sitting here waiting to be installed. In the back of my mind, I've been trying to decide what to do... buy an aftermarket 85mm MAF? Use descreened stock ends? Or stay with the stock screened ends that I have had success with? Basically, this is the last "bolt on" I can buy, and am not convinced it is worth the money. I don't have anyone in this area I can take my car to for an SD tune, so that is definately out the window.
Patrick G - I have been following all the threads about your current car since you started swapping parts. You've had great results thus far and I appreciate you posting all the write ups & graphs.
I will have my new forged short block in 3-4 weeks, and I have my "Mamo-improved" parts sitting here waiting to be installed. In the back of my mind, I've been trying to decide what to do... buy an aftermarket 85mm MAF? Use descreened stock ends? Or stay with the stock screened ends that I have had success with? Basically, this is the last "bolt on" I can buy, and am not convinced it is worth the money. I don't have anyone in this area I can take my car to for an SD tune, so that is definately out the window.
Patrick G - I have been following all the threads about your current car since you started swapping parts. You've had great results thus far and I appreciate you posting all the write ups & graphs.
11-08-2005, 06:28 PM
#17
Originally Posted by JaSSoN
Id like to see some track times out of Patrick Gs ride, just once.
I still would like to know about a larger MAF on an A4 car w/ full bolts + H/C/I.
11-13-2005, 09:53 AM
#20
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Originally Posted by LowETz
Before: 434/406 NA, stock ported TB/LS6 intake, stock descreened MAF, F11 cam, TEA 5.3's, all other bolt on's through a 12 bolt/4.56's, 28" ET Streets
After: FAST 90/TPIS 90 > 457/424 NA, no other changes.
After: FAST 90/TPIS 90 > 457/424 NA, no other changes.