YouCantCmyZ28

iTrader: (7)

thinking about getting a ported TB from thunder racing..they charge $150 for theres and $260 core charge. just wondering if thats reasonable and if i could find them or get mine done anywhere else cheaper (maryland). also while i have the tb out i want to descreen my maf. any pros or cons in doing this and is there anything i should know or be carefull of while doing it. just wondering will i need any tuning or reprograming at all when i get it all back together. thanks for the help

Camaro94SS

I removed the screen, not sure If i noticed a difference? The screen was alot thicker and bigger then i thought though...i beleive it helps breathing a tiny bit lol

Aegnor

For every person that posts that removing the screen will gain you 2HP (or 4,5,8,10, whatever) there will be at least 3-5 people that will say it caused nothing but problems. Personally, I think that a gain that small, versus a couple hundred dollars to fix any problems it may cause, isn't worth the risk.

As for the TB, that's one gain that's shown to work. There's quite a few sponsors that offer either porting or new machined ones, or ones on an exchange. Shop around for the best price, or search for "Ported TB" for other options, ideas, and results.

TheBlurLS1

iTrader: (8)

Do NOT alter the MAF in any way.

The throttle body is a great mod. You can do it yourself if you'd like to spend $0, and I think New Era does them as well, you can check their prices out.

YouCantCmyZ28

iTrader: (7)

what probs can it cause? would it be better to just port it or spend the money to get a new machined one

YouCantCmyZ28

iTrader: (7)

anyone?

300bhp/ton

Porting your TB is a great idea. However you can do it yourself for nothing. There's a link in my sig.

Else just shop around and see what prices you can find. The $260 core charge is if you don't send in your TB.

If you are wanting to spend money take a look at TPIS, they offer a 90mm Ls6 intake on an exchange basis (you have a 01 so you also have a LS6 intake) and get a 90mm TB. You'll see decent gains over a ported sotck LS6 intake.

A FAST 90 with a 90mm TB (Nick Williams) will show even better gains, but it's pricey.

As for the MAF:

Leave it be!

The screen is there to create a laminar flow for accurate reading from the MAF sensor itself.

Removal of the screen means you are liekly to get incorrect MAF radings causing all sorts of issues, poor idle, loss of HP, massive drop in mpg.

If you don't get any adverse side affects you'l probably see somewhere around ZERO 0.5HP increase. Certainly not enough to meausre on the dyno or at the track.

So the question is "do you feel it's worth the risk?"

BTW - A totally stock MAF is fine for over 500rwhp.

YouCantCmyZ28

iTrader: (7)

thanks for the help

orangeapeel

iTrader: (18)

I saw nothing but lean issues on the A/F side with a descreened MAF.
I think that some people stab it out with a bowie knife and cut the actual sensor portion, and that is another reason people have problems. The walmart bag I found on mine when I got the car made me think really hard about de-screening it.

CJDZ24_Z28

iTrader: (75)

www.neweraperformanceparts.com They port tb's for $75.00 and are a sponsor. I have owned 9 4th gen F-Bodies and removed the screens on all the MAFs never had a problem

senicalj4579

iTrader: (41)

i'v had 2 ls1 f-bodies and no problems from descreening but i cant say that i gained any hp.

Lethal_Ws6

iTrader: (13)

i would never descreen my maf.. Everytime i take off my lid to Clean my K&N , i take a look at the maf, it has soo many little pebbles and particles, that get past the Air filter, im sorry but i wouldnt want want my engine sucking up that stuff. all bad..