90mm MAF too big?!
01-24-2007, 03:23 AM
#11
6th Gear Member
Thread Starter
Join Date: Nov 2004
Location: Tennessee
Posts: 7,797
RE: 90mm MAF too big?!
ORIGINAL: rbstang
i would talk to code... but im pretty sure hes running the stock maf calibrated for 30lb injectors and he has more hp then... so how is your maf pegged?
i would talk to code... but im pretty sure hes running the stock maf calibrated for 30lb injectors and he has more hp then... so how is your maf pegged?
01-24-2007, 03:34 AM
#13
5th Gear Member
Join Date: Apr 2006
Posts: 3,625
RE: 90mm MAF too big?!
If all you have is nitrous, then you def. don't need a 90mm. With the short blasts that you use the nitrous on your car won't run right without the no2. I would say stick with your stcok and get a mafia tuner. That'll open up the door to like 5v to where you'll never peg out. You can just turn it back when your not racing. They run around $150
01-24-2007, 07:13 AM
#14
6th Gear Member
Join Date: Jan 2004
Location: United States
Posts: 12,575
RE: 90mm MAF too big?!
Your MAF has nothing to do with nitrous... nitrous is injected into the engine after the MAF.
You either spray the nitrous in just before the t/b (along with the extra fuel required) or you have a system like the holley one where it increases the injector pulse for you. Even in that system, I am 99.99 percent sure the MAF has nothing to do with it.
The MAF cannot read the differnce between nitrous and air coming into the engine. Compressed nitrous is a completely different animal from regular air... aka it is not gonna read the same (per unit of fuel required).
I don't see how you are pegging even a stock MAF let alone a aftermarket one. This almost has to be an issue with your shop (unless the maf is just messed up). I have heard of several people in the very low 400 range "pegging" the 90mm lighting meter as well... its got to be their shop (the stock L meter makes more than that on a stock truck!)
You either spray the nitrous in just before the t/b (along with the extra fuel required) or you have a system like the holley one where it increases the injector pulse for you. Even in that system, I am 99.99 percent sure the MAF has nothing to do with it.
The MAF cannot read the differnce between nitrous and air coming into the engine. Compressed nitrous is a completely different animal from regular air... aka it is not gonna read the same (per unit of fuel required).
I don't see how you are pegging even a stock MAF let alone a aftermarket one. This almost has to be an issue with your shop (unless the maf is just messed up). I have heard of several people in the very low 400 range "pegging" the 90mm lighting meter as well... its got to be their shop (the stock L meter makes more than that on a stock truck!)
01-24-2007, 02:46 PM
#15
5th Gear Member
Join Date: Mar 2005
Location: Nashville/Knoxville, Tennessee
Posts: 4,687
RE: 90mm MAF too big?!
ORIGINAL: 97targa
If all you have is nitrous, then you def. don't need a 90mm. With the short blasts that you use the nitrous on your car won't run right without the no2. I would say stick with your stcok and get a mafia tuner. That'll open up the door to like 5v to where you'll never peg out. You can just turn it back when your not racing. They run around $150
If all you have is nitrous, then you def. don't need a 90mm. With the short blasts that you use the nitrous on your car won't run right without the no2. I would say stick with your stcok and get a mafia tuner. That'll open up the door to like 5v to where you'll never peg out. You can just turn it back when your not racing. They run around $150
01-24-2007, 04:59 PM
#16
5th Gear Member
Join Date: Apr 2005
Location: South Jersey
Posts: 2,489
RE: 90mm MAF too big?!
ORIGINAL: ZW99GT
I dont have anything near the amount of Air coming in that you do.
I'll be just fine with a 90mm and 24lbs. I was just making sure that I could calibrate this MAF to match my car/injectors.
I dont have anything near the amount of Air coming in that you do.
I'll be just fine with a 90mm and 24lbs. I was just making sure that I could calibrate this MAF to match my car/injectors.
01-24-2007, 05:17 PM
#17
Mustang Nazi
Join Date: Sep 2004
Location: Texas, baby
Posts: 13,444
RE: 90mm MAF too big?!
ORIGINAL: droptoppony
you don't calibrate the MAF's on these cars to match injectors...its done in the tune. The MAF's that require you to trick the car with sample tubes such as C&L etc are not good. You should use the stock for most NA applications up to 350rwhp and a 90mmLMAF after that. If your going with big power then a SCT 2400 or 2800 is the next step. Those are the only 3 MAF's that i would use on a modular. Maybe a Pro-M blow through in a custom Turbo setup.
ORIGINAL: ZW99GT
I dont have anything near the amount of Air coming in that you do.
I'll be just fine with a 90mm and 24lbs. I was just making sure that I could calibrate this MAF to match my car/injectors.
I dont have anything near the amount of Air coming in that you do.
I'll be just fine with a 90mm and 24lbs. I was just making sure that I could calibrate this MAF to match my car/injectors.
01-24-2007, 06:17 PM
#19
Underboss
Join Date: Jan 2006
Location: Helaware
Posts: 20,273
RE: 90mm MAF too big?!
ORIGINAL: rbstang
i would talk to code... but im pretty sure hes running the stock maf calibrated for 30lb injectors and he has more hp then... so how is your maf pegged?
i would talk to code... but im pretty sure hes running the stock maf calibrated for 30lb injectors and he has more hp then... so how is your maf pegged?
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