I have seen that many people have decreened there MAF's. Like in GMHTP bolt-on LT1 section they did a while back.

Is it worth it? or not? what is it there for anyway?

 

no, and there to probably smooth out the airflow over the sensors.

 

everyone has their own opinion on this topic. They way I see it, it couldn't hurt, and it keeps less restrictions. hope that helps

 

Don't bother. I did it on my 95, and while I didn't loose any power, I also didn't gain any either.

 

Depends on the car, my Z28 had heads/cam/long tubes and picked up 7 rwhp peak and 10 rwtq down low after a 'on dyno' descreen, same A/F ratios, MTI guy talked me into it and he was right. Ended up with 390 rwhp after that, I was happy. If the car isn't heavily moded though, I wouldn't do it?

 

I'd keep it on. I just cleaned my MAF and I found a tiny piece of aluminum foil?? trapped on the screen. I don't know how it got there, but the screen stopped it.

 

lol, if your air filter is attatched properly, that won't happen Also, the screen is NOT there to catch debris....

 

It's there to even out any turbulence in the air so the maf gets a good reading on the air coming in. On a stock car I wouldn't advise it, any power you see will probably be offset by the engine not running as smoothly. Plus, if your filter falls off by act of god or whatever for those with cai, it can catch any large particles entering the engine.- and on a high hp car most people try to get rid of the maf sensor altogether.

 

Everytime this gets asked, the results are the same.

Some say it's not worth it, some say to do it.

I've descreened it and have not had one problem from it. It does restrict flow. Is it enough to matter? Maybe as much as an airfoil on a stock engine (1-2 hp) would be my guess.

To be honest, I can't remember why I did it. I think my instructions for my K&N FIPK said to remove it, but I could be wrong. My car runs super smooth, no misfires and my gas milage has averaged 21.5 mpg over the life of the vehicle.

The more HP you have, the more it could hold you back.

You do risk damaging the sensors if you do it.

Dan

 

Choose for yourself what's right for your car, but consider this: Some of the best tuners on the west coast will not touch a car that has the screen removed. I realize there are a few folks who swear by the mod, and as many detractors to the mod. I've run both ways, and saw absolutely no difference in power with the screen removed.

 

As I stated above in my post, if you have big mods...it does help with proper tuning. I did all my own tuning with LT1 edit so I knew my tuning was right and consistant.

 

Purpose of MAF: Measure air coming into your engine.
Purpose of Screen: Create an even flow of air over MAF sensor.

Pros Of Leaving Screen In:
#1. Nothing Goes wrong if you don't tinker with it.
#2. MAF will read accurate because air flows evenly over sensor.
#3. Backup in case your CAI falls off.
#4. You won't need to buy a new one if your readings are off.

Pro's Of Taking Screen Out:
#1. Arguably a few HP To be gained.

Con's of Leaving Screen In:
#1. You won't get the "arguable" few HP.

Con's of Taking Screen Out:
#1. Your MAF may give innacurate measurements to the computer causing lean/rich conditions.
#2. A slight lean condition may generate a few extra HP at the cost of added HEAT from combustion.
#3. You will need to buy a new MAF if your running bad and you cut out the old maf.
#4. You will always wonder if problems which develop over time in the future are a symptom of your hacked up MAF.

I really don't think there is anything to argue about here, seems like its a stupid idea to remove the MAF screen to me. I don't know why so many people say its OK to.
Just because you don't have negative symptoms from doing it doesn't mean you should recommend it to other people.

 

toby360 if that is true then why does aftermarket MAF not come w/ any screen

 

Why is it always people with "headers" or "catback" that seem to have the most overwhelming technical knowledge and real world applications on things like this then the guys that have built a few motors and tuned several configs themselves? with great results ?

 

Yea it pobably only matters when you get higher Hp levels.......i'll leave it on for now. I only ask because in GMHTP in the bolt on contest between the LT1's the guys running faster had it descreened.