pics of plugging supercharger holes
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lol your a funny guy... thanks for sharing, actually i did see a increase in boost by nearly 2psi and on scanforce saw a 7hp gain... now that could be anything like temp and humidity but i think the increase in boost tells the story... and thats 7 flywheel hp not whp
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direct quote frm the sticky Ralli:
Air Leakage Ports:
The two oval slots on the output plate are air leakage ports. Their only purpose is to decrease operational noise from the blower. Arnie, from Eaton Corp., explains their function like this, "When you stomp on the gas, the boost shoots up and the air flow goes supersonic. The air then slams back into the output plate and through the leakage slots, which reduces the hammering of the air into the housing causing less noise. The OEM can not have such loud NVH, thats why we put them in the housing. The 2 small ports are not there to feed air, only to reduce noise." Basically, for the best flow and most efficiency, these ports can be blocked off, making the outlet port (triangle slot) the only port on the outlet plate of the housing. Closing these ports will not increase IAT's; however, it will make the supercharger much louder when in boost. As an example, aftermarket supercharger companies, such as Harrop, Roush and Magnuson do not use these slots in their blowers. It should be re-stated, that you should consult professionals regarding closing these ports; and do not, for any reason, plug them with JB Weld. Improper closure could eventually lead to pieces coming apart and loose debris destroying the rotors and housing. Opening up these ports will only have a negative effect on efficiency. Do not port them.
heres the thread...
https://www.cobaltss.net/forums/show...silencer+holes
now please take a
Enjoy!
Air Leakage Ports:
The two oval slots on the output plate are air leakage ports. Their only purpose is to decrease operational noise from the blower. Arnie, from Eaton Corp., explains their function like this, "When you stomp on the gas, the boost shoots up and the air flow goes supersonic. The air then slams back into the output plate and through the leakage slots, which reduces the hammering of the air into the housing causing less noise. The OEM can not have such loud NVH, thats why we put them in the housing. The 2 small ports are not there to feed air, only to reduce noise." Basically, for the best flow and most efficiency, these ports can be blocked off, making the outlet port (triangle slot) the only port on the outlet plate of the housing. Closing these ports will not increase IAT's; however, it will make the supercharger much louder when in boost. As an example, aftermarket supercharger companies, such as Harrop, Roush and Magnuson do not use these slots in their blowers. It should be re-stated, that you should consult professionals regarding closing these ports; and do not, for any reason, plug them with JB Weld. Improper closure could eventually lead to pieces coming apart and loose debris destroying the rotors and housing. Opening up these ports will only have a negative effect on efficiency. Do not port them.
heres the thread...
https://www.cobaltss.net/forums/show...silencer+holes
now please take a
Enjoy!
whats so risky the **** cant go in the motor even if i did fall out it cant make it past the laminova (dont know the spelling) cores and you make em big and heavy so even if it fell (which i highly doubt the grand am guys have been doing this for years) there wouldent be enough vaccum in the engine to even pick them up off the intake manifold bottom
Last edited by hungryhip-ccp; Mar 24, 2008 at 03:50 AM. Reason: Automerged Doublepost
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i have a feeling those holes were put there for a reason. I doubt they would take the time to drill 2 holes in a supercharger, if they were pointless. I would not recomend doing this, unless you don't care about your warrenty, or you want to take the rise of blowing your SC.
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From: New Bedford, MA
The two oval slots on the output plate are air leakage ports. Their only purpose is to decrease operational noise from the blower. Arnie, from Eaton Corp., explains their function like this, "When you stomp on the gas, the boost shoots up and the air flow goes supersonic. The air then slams back into the output plate and through the leakage slots, which reduces the hammering of the air into the housing causing less noise. The OEM can not have such loud NVH, that’s why we put them in the housing. The 2 small ports are not there to feed air, only to reduce noise." Basically, for the best flow and most efficiency, these ports can be blocked off, making the outlet port (triangle slot) the only port on the outlet plate of the housing. Closing these ports will not increase IAT's;however, it will make the supercharger much louder when in boost. As an example, aftermarket supercharger companies, such as Harrop, Roush and Magnuson do not use these slots in their blowers. It should be re-stated, that you should consult professionals regarding closing these ports; and do not, for any reason, plug them with JB Weld. Improper closure could eventually lead to pieces coming apart and loose debris destroying the rotors and housing. Opening up these ports will only have a negative effect on efficiency. Do not port them.
LoL I guess if it's not called jbweld....
LoL I guess if it's not called jbweld....
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From: Beverly Hills, Florida
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From: Abilene, Texas
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I called them a few months ago when this was going around and they told me differently. Ever wonder why the TS and TVS dont come with the ports?
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So those that have joined the ranks of the sneeze mod on SRT4s.... COOL!
More noise no more powa! Well I guess if that is what you want... but my 2.80 stock blower is MUCH louder than that!
More noise no more powa! Well I guess if that is what you want... but my 2.80 stock blower is MUCH louder than that!
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From: SoCal, Lancaster
wait till i drop the 2.8 and make another video tonight
Last edited by hungryhip-ccp; Mar 24, 2008 at 03:09 PM. Reason: Automerged Doublepost
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From: Maidstone, SK
OMFG.... another 'plug the ports' thread.... 
Why do people continue to think that boost = power?
Why do people continue to think that boost = power?
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From: Ft Lauderdale
