skopers3

iTrader: (3)

Sorry if this is a re-post. This article isn’t exactly new but I’ve never seen it before. It’s an interesting read. For those who won’t click the link, they dynoed a stock T/A, then did the free mods and dynoed it again. They showed a 10.4 WHP gain from these mods. Not bad, def. worth doing.
I’ve read countless threads arguing over how much power free mods give and if they’re worth it or not.
Hope this can shead some light.

http://www.gmhightechperformance.com...ons/index.html

NastyNate65

Cool article. Ive already done a few of those mods but i still need to port my TB and move that coolant hose.

BTW are you guys having any get togethers in lincoln/omaha anytime soon?

skopers3

iTrader: (3)

Nothing too big that I know of. I usually just go drive around at nights.

RaggedRides

iTrader: (8)

I remember pulling my lid apart one night to do the free ram air mod only to find it all already been done. I ditched the A.I.R, E.G.R. and did the coolant bypass mod to pass time on a boring afternoon. It's fun to tinker for the hell of it, but decent gains are always a welcomed plus.

ULTIMATEORANGESS

iTrader: (4)

interesting. descent gains for not having to spend any money.

MonmouthCtyLS7

iTrader: (6)

Shops have seen 7 hp gains from ported tb's so that most of the gains.

billymz28

I felt a gain and seen it on the clock also

Starz T/A 17

iTrader: (6)

Yea, most of that is probable the TB, one thing that that I hear is just stupid is descreening the MAF, heard it can cause problems and allow little particles that the air filter misses to get in the engine.

71novaguy

iTrader: (2)

thats some funny ****

Starz T/A 17

iTrader: (6)

^Regardless its a fact that there is no HP gain from porting or descreening the MAF so why do it? And ive seen and heard of people finding bugs and other crap in there, so I dont see how its so funny...

06 6.0 GTO

Wow i wish GTOs had more of these available.

NastyNate65

Where are these facts about no HP gain from descreening the MAF? I read somewhere (ill try to find the article now) that the screened MAF flows around 800 cfm and the descreened MAF around 1000 cfm. Theres gotta be at least a small HP gain there.

TheBlueKnight

iTrader: (4)

Nice article. Again, most of that 10rwhp is from the ported throttle body, probably 5-7hp. Overall everything they did is worth a good car length in the quarter. And yes, SLP has done extensive testing with the stock Maf. The stock Maf is limited to about 800cfm where removing the screen is worth over 1000cfm. The majority of people who descreen their Mafs don't have the idle problems people have made it out to have.

What happened is a couple people on this site had irregular idles after descreening the maf. This turned into, "Some people have idle problems after descreening the maf", then "A lot of people are having idle problems after descreening the maf", and finally every Tom, Dick and Harry saying, "Don't remove you maf or you'll be sorry! You'll have a lot of problems!" My brother, Me, and a lot of guys in our car club, and hundreds of members on this site have removed their Maf screens with no problems. I bet the people saying you'll have a problem have never removed their screens or had a friend that did either, they heard from a guy that heard it from a guy that heard it from a guy...ect...until finally it becomes that if you remove your maf you'll have all these "problems".

And the screen is not there to keep twigs and bugs out of your engine! Some guy told me, "well I found a bunch of crap like bugs and sticks on my screen, if it wasn't there it would have been sucked into the engine." Guys, if you're finding crap on your maf screen you have a serious problem up further in the intake section. Somewhere you have a leak and crap is getting through. If bugs and twigs are getting through can you imagine how much dust and dirt is getting past the Maf?

BAMALS1

iTrader: (16)

Yep, I remember that article (i have that issue in my personal library). One of the first "mods" i did lol. Every little bit helps!!

NeedaV8foundation

iTrader: (4)

i think its interesting how a good port makes up most of the hp that they gained, but i wonder if they would have picked anything else up using new spark plugs and upgraded wires?

ssinister550

iTrader: (8)

this is false information. at the shop i work at we've done multiple dyno tests back to back screened maf vs descreened maf and every single time it will pick up anywhere from 3 to 6 hp at the tires time and time again and that is fact. the only purpose of the screen is to straighten the air out going into the maf IF there are turns in front of it but most intake setups out there are a straight shot into the maf and then make turns after the maf. so if there are no turns in front of your maf descreen it and you will pick up a bit of power.

boostedbuford

Go to nestreetscene.com the Omaha forum- Make sure you join the General Motor's sub-forum, and Starcityracing.com is the Lincoln forum, there is also gmmodernmuscle.com Which is an all Nebraska forum. There should be a bunch going on this weekend it's the Hotrod Nationals/Americruise in Lincoln we all plan on meeting up at 7pm at the outlet malls and crusing to Lincoln, check the General Events section for more information on it, it also has info on other car-shows/cruises. We normally get together cruise and have some street fun, every other week or so.

Kevin01Z28

iTrader: (8)

Im with this guy. In Will Handzel's book on building and modifying LS1/LS6 V8's he says descreening the MAF is the first mod that should be done to any MAF on an LS vehicle with a straight intakes (all f-bodies). He's the program manager at the GM Performance Parts division so ill go with his word.

JohnFrazee02SS

iTrader: (23)

another gain is you get the satisfaction of tinkering

fbodyman1026

iTrader: (11)

^^^im glad i kept my maf screen in because the weather stripping from my slp lid came off somehow and i found it stuck on my maf screen.