max hp from stock MAF?
Jun 27, 2005, 05:32 AM
#2
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don't know, but I'm at 350whp right now on the stock maf. looking to break 400here in a week or two. I know the UTEC guys are putting down some serious numbers, some over 450whp
Jun 27, 2005, 05:37 AM
#3
Originally Posted by ldstang50
don't know, but I'm at 350whp right now on the stock maf. looking to break 400here in a week or two. I know the UTEC guys are putting down some serious numbers, some over 450whp
Jun 27, 2005, 05:53 AM
#5
Yep.. UTEC currently uses the stock MAF..
The stock MAF will flow quite a bit of air, as the airflow reaches its maximum (which is around 3000hz or so) I think it can become unstable, in and of itself, its not a huge restriction and should be able to pass enough air for some of the bigger turbo cars, but it may not read consistently at that high an airflow rate at the highest boost these cars are running.
Some of the UTEC people are running MAF but their open loop fueling is governed by MAP which removes some of the flexibility that the MAF offers for different weather conditions, but it will provide a consistent reference signal for turbos moving enough air to "Confuse" the maf sensor.
I'd say you'd probably have to be around 500whp or so before the stock MAF will become an issue if you can tune the MAF.. I know even the stock airbox will flow enough air for 380whp or better..
Most of the people removing the MAF are doing it for technical reasons, either standalone conversion offers it, or there's some other need (in my case a blowthrough MAF setup was an experiment which had good results) But for most daily driven cars, I dont see any need to remove the MAF, even with most of the bigger turbo kits, I think with the GT35r turbo kits you begin to fall onto the cusp of whether or not the stock maf will be adequate.
The stock MAF will flow quite a bit of air, as the airflow reaches its maximum (which is around 3000hz or so) I think it can become unstable, in and of itself, its not a huge restriction and should be able to pass enough air for some of the bigger turbo cars, but it may not read consistently at that high an airflow rate at the highest boost these cars are running.
Some of the UTEC people are running MAF but their open loop fueling is governed by MAP which removes some of the flexibility that the MAF offers for different weather conditions, but it will provide a consistent reference signal for turbos moving enough air to "Confuse" the maf sensor.
I'd say you'd probably have to be around 500whp or so before the stock MAF will become an issue if you can tune the MAF.. I know even the stock airbox will flow enough air for 380whp or better..
Most of the people removing the MAF are doing it for technical reasons, either standalone conversion offers it, or there's some other need (in my case a blowthrough MAF setup was an experiment which had good results) But for most daily driven cars, I dont see any need to remove the MAF, even with most of the bigger turbo kits, I think with the GT35r turbo kits you begin to fall onto the cusp of whether or not the stock maf will be adequate.
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Jun 27, 2005, 06:23 AM
#8
IE has a 490whp evo (30) that runs perfect on the stock maf. Evotomig had a 550whp evo (35r) on the stock maf but had all kinds of problems, he thought they could be maf related but the rest of us thought he just needed to be more patient and work out the kinks. The car will run fine at 500whp with stock maf, maybe more.
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Jun 28, 2005, 05:22 AM
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Originally Posted by Derek888
whats that?
Jun 28, 2005, 01:37 PM
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My best 1/4 mile mph on the stock maf and 26lbs was a little over 121mph so far, I only have the one pass on the car (track was packed and nagging wife on the phone). I had a 2.1 60' b/c I had to back out of it b/c of wheelspin, made up over 32mph in the back half though.
Last edited by 4ringturncoat; Jun 29, 2005 at 09:57 AM.
Jun 29, 2005, 06:17 PM
#15
Originally Posted by Derek888
how much hp you guys running?
Originally Posted by ldstang50
i ran 30psi stock turbo on the stock maf, ran just fine
Last edited by fre; Jun 29, 2005 at 06:21 PM.