I have an 03 Silverado and was looking at the throttle body. It has a big restrictor kind of thing on the back of the plate the blocks a lot of flow at wot. I had heard that taking that off will mess with egr flow but will also supply more air and therefore, more power. Have any of you guys done this, and is it worth it? What problems does it cause besides shortened life on the front plugs?
I had a 02 silverado 4.3 and i removed that restrictor and and had no ill effects except more power!
2008 Trailblazer SS 2wd red jewel 1ss
Forged 365,Tvs1900@11psi,IW 8 rib overdrive,duel pass heat ex,Prc heads,blower cam,Yank,Aeromotive,ect
Yeah, go ahead and take it off. Just be careful...
2000 ECSB 6.0L
TORQUER V2 CAM ● COMP 918's ● 7.4 HARDENED PUSHRODS ● K&N SERIES 77 CAI ● 80mm BBK ●PACESETTER LT HEADERS AND 3'' ORY ● SUPER 40 FLOW ● 3000 STALL ● 4.10s ● BUILT 80e ● VORTEC PERFORMANCE TUNE ● MSD 8.5mm PLUG WIRES● ELEC. CUTOUT ● UD & ALT PULLEYS ● FLEX-A-LITE E-FANS ● 22" CENTERLINE STINGRAY III's ● LUND FIBERGLASS TONNEAU ● 2" LEVELING SHACKLES ● 12K HID LOWS & FOGS ● LEDs ● DEBADGED ● WHITE-FACED ESCALADE GAUGES ● KICKER 450.1 ● 2-CVR 10's ● DS60's ● K693's
evan, i would almost suggest taking the hole TB off when you take that bumpstop thing out...dont wanna drop anything down in there...
06 silverado CC Volant CAI/ Corsa Sport exhaust
dynatech supermaxx headers/cats
LPE GT2-3 cam/ Comp 918's/ Rods
Eaton LSD 3.73's
IAT Shocks
DANNY TRANNY w/2800 TCS billet verter
275HP and 293TQ Pre Cam
314HP and 303TQ post cam
Who has done something like that in here? Hhmmmmmm, I wonder.Originally Posted by nonecktribe
30' Ford Model A Tudor Sedan - Custom chassis - Big bore LS2 - twin B76's - Glide - 9" w/ 3.07 gears - 30" DR tire - 2k lbs cruiser
I had an 02 4.3 5 sp and cut that out witha dremell and ported it . Now it was a omg gain but you could feel that it did something in the seat dyno you will be happy if you do it
Spunky xoxo
Sweet. I was expecting to hear someone say something along the lines of "Holy s*** don't do it!" but if none of you have had problems, I am going to get right on it. What is the best way to go about it? I haven't looked at it a whole lot but I would guess it is a type of rivet or something. And James, I am thinking about using your idea and taking it completely off. I will decide that when I find out what all that involves and what it's gonna take to get the restrictor off. Thanks guys.
-Evan
Scratch that. It looks like the "butterfly" comes off with two torx screws and from there I just take the restrictor off with another screw or two. I'll let you guys know how it turns out.
'00 Silverado 4.8L (Gone)
'11 Silverado 4.8L
just be sure if you take the rivots out that you plug those holes or it will idle high...
2008 Trailblazer SS 2wd red jewel 1ss
Forged 365,Tvs1900@11psi,IW 8 rib overdrive,duel pass heat ex,Prc heads,blower cam,Yank,Aeromotive,ect
Jake you called that one. I honestly ddin't think about it until I had the plate in my hand with three rivet holes. Then I realized that I definitely hadn't thought that one through. The funny part is that I had decided to do this at a friends house during my lunch break and he didn't have a rivet gun or any way to plug the holes so I drove all the way back to work at 4000 RPMs gaining speed without touching the gas. Nothing a few rivets and time with no customers in the store didn't fix.
'00 Silverado 4.8L (Gone)
'11 Silverado 4.8L
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