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Vortec Throttle Blade Mod and Intake Resonator Removal

vortec throttle blade mod and intake resonator removal

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#1 OFFLINE   DirtRidinZ71

 
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Posted 30 January 2013 - 12:21 PM

This is a little how to for doing a couple of budget mods for the 96+ vortec's. Cost nothing and only takes about 30 min to do, gains are reported to be little extra gain in throttle response and also increase the intake noise (mental HP) B) With the crappy weather I didnt go for a test drive to see if any gains.

 

Open the hood

 

The first step is to remove the air intake, I undid the clamp at the MAF sensor and then the plastic wing nut at the throttle body then unclip it and remove

 

Next is to remove the throttle blade by removing the to torx head screws that hold in it the throttle body

 

With the 2 screws removed the throttle blade will pull out, if built up with carbon you will have to wiggle it some.

 

This will allow you to trim off the piece on the back side of the blade. It is just aluminum so is easy to cut off, I used an angle grinder

 

Once cut off I used a flat file to smooth it off, then a brass wire wheel to clean the carbon off.

 

To reinstall just slide the blade back into place in the throttle body, cycle the throttle to make sure it is not sticking any.

 

Use red loctite and put the 2 screws in


___________________________________________________________

1992 GMC K1500
SAS with HP D60 front axle & 10.25" Sterling rear axle, 5.38 gears 
10" of lift, Shortened 10", 38.5x15x15 Boggers
350 TBI, cam, intake, chip
Realtree APG Camo wrap
2005 Chevrolet TrailBlazer
4.2L Vortec, 3.73 Gears, G80
2" Rough Country Lift, 245/75R16 Kelly Safari TSR's
Build Thread: http://www.gmc4x4.co...ic-heavy/page-1


#2 OFFLINE   DirtRidinZ71

 
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Posted 30 January 2013 - 12:25 PM

The intake resonator is even easier to do. Loosen the hose clamp and remove the bolt that holds the "vortec box" onto the base.

 

Seperate the 2 parts

 

I used the cap from a spray paint can, had to use a heat gun to get it to slide onto the intake assembly, secured with a hose clamp

 

Install back onto truck


___________________________________________________________

1992 GMC K1500
SAS with HP D60 front axle & 10.25" Sterling rear axle, 5.38 gears 
10" of lift, Shortened 10", 38.5x15x15 Boggers
350 TBI, cam, intake, chip
Realtree APG Camo wrap
2005 Chevrolet TrailBlazer
4.2L Vortec, 3.73 Gears, G80
2" Rough Country Lift, 245/75R16 Kelly Safari TSR's
Build Thread: http://www.gmc4x4.co...ic-heavy/page-1


#3 OFFLINE   AirmanSkee

 
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Posted 30 January 2013 - 12:47 PM

I plan on doing the blade delete on mine, as I didnt have the Vortec intake breather on mine (came with a K&N already installed.) I like my mental hp! That way I sound like I am going fast!   :superman:


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#4 OFFLINE   dvanbramer88

 
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Posted 30 January 2013 - 02:31 PM

Is throttle response the only gain?


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#5 OFFLINE   AirmanSkee

 
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Posted 30 January 2013 - 03:09 PM

Some say they think it adds a little bit more power, but I haven't come across any proof of that. It's mainly just a little louder and adds the response. Sent from my 6.0 G8 Chase car in an "undisclosed location in SW Asia."
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-Michael aka Skee
RiSSa -- 1997 K1500 Stepside Vortec 5.7, K&N CAI, 35" KM2s, 9" Solid Axle Swap, High Pinion Dana 44, Dana 70HD Rear, 4.10s
2002 Honda CBR600F4i "Reaper" 
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#6 OFFLINE   AA1PR

 
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Posted 30 January 2013 - 03:41 PM

how does it mess if any with the emissions? that would be my biggest concern.

 

the only true way to see what it yields would be a dyno test before & after


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2004 GMC Yukon, 4X4 SLT, 5.3L Vortec, ~ Yukon Build Thread
Trail Master 2.5" leveling keys, SkyJacker Shocks -upfront, Monroe MA830 Air shocks rear & MOOG rear coils,  EGR 1.25" Fender Flares
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#7 OFFLINE   DirtRidinZ71

 
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Posted 30 January 2013 - 03:52 PM

Is throttle response the only gain?


I never had a chance to drive it afterwards to see if really noticeable any gains. The main claim is a little increase in throttle response. If there really is anything noticeable then its well worth the 30 min of work.
___________________________________________________________

1992 GMC K1500
SAS with HP D60 front axle & 10.25" Sterling rear axle, 5.38 gears 
10" of lift, Shortened 10", 38.5x15x15 Boggers
350 TBI, cam, intake, chip
Realtree APG Camo wrap
2005 Chevrolet TrailBlazer
4.2L Vortec, 3.73 Gears, G80
2" Rough Country Lift, 245/75R16 Kelly Safari TSR's
Build Thread: http://www.gmc4x4.co...ic-heavy/page-1


#8 ONLINE   DonYukon

 
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Posted 30 January 2013 - 05:18 PM

Ive been wanting to try this, Ive heard it works


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#9 OFFLINE   Chevrolado

 
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Posted 30 January 2013 - 05:54 PM

how does it mess if any with the emissions? that would be my biggest concern.

 

the only true way to see what it yields would be a dyno test before & after

I'd also wonder about this... Specially with CA regulations on my vehicles. Emissions aint a joke around here. :wacko:


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#10 OFFLINE   AA1PR

 
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Posted 30 January 2013 - 05:57 PM

how does it mess if any with the emissions? that would be my biggest concern.

 

the only true way to see what it yields would be a dyno test before & after

I'd also wonder about this... Specially with CA regulations on my vehicles. Emissions aint a joke around here. :wacko:

 

 

Yes & I'd like to think that that blade aids in cold air starting to some effect if I am looking at how its mounted correctly

 

either way I guess you might be safe


___________________________________________________________

2004 GMC Yukon, 4X4 SLT, 5.3L Vortec, ~ Yukon Build Thread
Trail Master 2.5" leveling keys, SkyJacker Shocks -upfront, Monroe MA830 Air shocks rear & MOOG rear coils,  EGR 1.25" Fender Flares
Putco Punch grille insert, gamut of Putco chrome accessories, & IPCW chrome/clear Crystal Eyes taillights
N-Fab light bar & Hella 700FF's,  Running on 33's BFG TA KO 

Radio Comm equipped 3.5mhz to 450 (analog& digital modes), Magellan Roadmate 1700 7" GPS & Delorme handheld

1966 Stevens M416 trailer too ~ M416 Build thread

 

"Now she is gone I got my Yukon"    ExpeditionNorth.com

 

newbanner1.jpg


#11 OFFLINE   dvanbramer88

 
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Posted 26 February 2013 - 11:08 AM

So as you guys saw on the other thread, I fixed my exhaust leak I've been battling for a long while. I also deleted my resonator. I love the way the motor sounds now. That low rumble at the higher rpms even with factory exhaust. Still idles very quiet. Love the mentle horse power when you give it a little. Also glad I'm not hearing my exhaust leak rattle and pop away.

 

On another note, the lid from a 99 cent can of black spray paint was a little too small like you said and it need to be streached. I found that the lid from a can of wasp/bee spray fit over but was a little loose. I put a little smear of RTV and a hose clamp and it's good to go.

 

Based off miliage and where my fuel gauge is, it's looking like I'm getting a little better MPG's now too. (A big part of that is exhaust leak fixed and I'm not running with the CEL on anymore, but the increased throttle response is causing me to use a little less go peddle too.)

 

I'll probably cut the throttle plate blade off sooner or later too.


Edited by dvanbramer88, 26 February 2013 - 11:09 AM.

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"Raise some hell where the blacktop ends!"
Chevy Power!
:flag: :chevrolet:    BUILD THREAD
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#12 OFFLINE   DirtRidinZ71

 
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Posted 26 February 2013 - 04:00 PM

So as you guys saw on the other thread, I fixed my exhaust leak I've been battling for a long while. I also deleted my resonator. I love the way the motor sounds now. That low rumble at the higher rpms even with factory exhaust. Still idles very quiet. Love the mentle horse power when you give it a little. Also glad I'm not hearing my exhaust leak rattle and pop away.

 

Yes I cant wait to drive mine with no exhaust leak, got the new manifold installed today, just have to finish it up tomorrow. I havent really "tried" out the mods yet due to the leaky exhaust being so annoying.


___________________________________________________________

1992 GMC K1500
SAS with HP D60 front axle & 10.25" Sterling rear axle, 5.38 gears 
10" of lift, Shortened 10", 38.5x15x15 Boggers
350 TBI, cam, intake, chip
Realtree APG Camo wrap
2005 Chevrolet TrailBlazer
4.2L Vortec, 3.73 Gears, G80
2" Rough Country Lift, 245/75R16 Kelly Safari TSR's
Build Thread: http://www.gmc4x4.co...ic-heavy/page-1


#13 OFFLINE   Hedge

 
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Posted 03 March 2013 - 05:19 PM

So as you guys saw on the other thread, I fixed my exhaust leak I've been battling for a long while. I also deleted my resonator. I love the way the motor sounds now. That low rumble at the higher rpms even with factory exhaust. Still idles very quiet. Love the mentle horse power when you give it a little. Also glad I'm not hearing my exhaust leak rattle and pop away.

 

Yes I cant wait to drive mine with no exhaust leak, got the new manifold installed today, just have to finish it up tomorrow. I havent really "tried" out the mods yet due to the leaky exhaust being so annoying.

 

Where are you guys leaking from on your exhaust?  ...one of these days I need to patch my muffle that has a small hole on the rear portion of it.



#14 OFFLINE   DirtRidinZ71

 
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Posted 03 March 2013 - 05:49 PM

Where are you guys leaking from on your exhaust?  ...one of these days I need to patch my muffle that has a small hole on the rear portion of it.

 

Mine was from a rusted out passenger side manifold. New manifold is nice and quiet.


___________________________________________________________

1992 GMC K1500
SAS with HP D60 front axle & 10.25" Sterling rear axle, 5.38 gears 
10" of lift, Shortened 10", 38.5x15x15 Boggers
350 TBI, cam, intake, chip
Realtree APG Camo wrap
2005 Chevrolet TrailBlazer
4.2L Vortec, 3.73 Gears, G80
2" Rough Country Lift, 245/75R16 Kelly Safari TSR's
Build Thread: http://www.gmc4x4.co...ic-heavy/page-1


#15 OFFLINE   Hedge

 
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Posted 04 March 2013 - 09:24 AM

Where are you guys leaking from on your exhaust?  ...one of these days I need to patch my muffle that has a small hole on the rear portion of it.

 

Mine was from a rusted out passenger side manifold. New manifold is nice and quiet.

IMAG1063_zps89fefaaf.jpg

 

I bet, it would be nice and noisy coming from the manifold.  Did you replace with OEM or aftermarket?  (have fun getting the rusty OEM bolts out?!)







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