[andy@livernois]

Most of the Commodore's I saw in Australia at the track running NO MAF had the Growler intake System installed the biggest percentage of street cars had a VCM ..check out any of the dyno pulls on face book from AUSTRALIA and you will see VCM is the intake of choice.

Any problems with a VCM should be directed to there web site for clarification...

and likewise all of the dynos we have done show different data. We have no horse in the race, but beyond looking pretty the VCM has never proven any better than a roto-fab.

All of the "ram air" style intakes only work in laboratory conditions. The problem is that doing down a race track, or street is not a laboratory controlled environment. The angle the air enters can be different from one minute to the next. We have seen the same ideal on the Corvette, and the non-ram air setups always outperform their ram air counterparts.

We have been talking about this design flaw for 4 years now, no change in design, in fact we have been told that we are wrong. We have done more g8's than anyone on the planet, and our roots are in the OEM world. We know a good design and a bad design when we see something. You should not have to buy an intake and then fix problems with it.

 

[missan nissan]

You have done your best to hi jack this guys post...if you want an intake that looks like very kids little Honda Civic that's fine, to date you have shown us no evidence to back up your claims.
I along with all VCM Owners stand by the fact we have Possibly the best Over the Radiator Cold Air intake with a Maf Sensor for this car, call it what you want it's a Holden Commodore... they do run OTR intakes Hurricane being one of the Best on Corvette's with improvements over the factory fitted unit .


If there is an issue...here is a tissue ///

 

[andy@livernois]

You have done your best to hi jack this guys post...if you want an intake that looks like very kids little Honda Civic that's fine, to date you have shown us no evidence to back up your claims.
I along with all VCM Owners stand by the fact we have Possibly the best Over the Radiator Cold Air intake with a Maf Sensor for this car, call it what you want it's a Holden Commodore... they do run OTR intakes Hurricane being one of the Best on Corvette's with improvements over the factory fitted unit .


If there is an issue...here is a tissue ///

I am only trying to educate on what to correct on the design flaw. I am here to help, not hijack.

 

[GXPaycheck]

I know the Livernois folks from the G8 boards. They know their stuff and don't hijack. There is a good thread on the subject on g8board.com that explains the issue. Most tuners work around it. Fixing the hardware works better. I will probably fix mine even though I'm still running the stock tune and haven't had any issues. If all I wanted was performance, I probably would've bought the VR. But I wanted the looks as well, so I went with the VCM. Both are good intakes that can be easily tweaked.

 

[LiquidR3D]

Makes the Engine bay look incomplete and unbalanced. Nice in the center, then that huge gaping hold on the driver side.

eh, whatever works.

 

[missan nissan]

VCM have a panel to fill in that big gaping hole left from the removal of the factory air box ..

 

[GXPaycheck]

Might find some pics in here.

Official VCM OTR install thread - Pontiac G8 Forum: G8 Forums - G8Board.com

 

[ringram]

For stock the VCM in mafless form is good.

But once you start adding power via heads, cam, displacement etc. Its not going to cut it.
Work out the filter area, then compare with a good cone filter.
You will find the panel filter VCM or other OTR types only flow in the 700cfm range.
Cones will get you 1200cfm+

I gained 50rwhp swapping my OTR to the rotofab 102 large cone setup

 

[andy@livernois]

For stock the VCM in mafless form is good.

But once you start adding power via heads, cam, displacement etc. Its not going to cut it.
Work out the filter area, then compare with a good cone filter.
You will find the panel filter VCM or other OTR types only flow in the 700cfm range.
Cones will get you 1200cfm+

I gained 50rwhp swapping my OTR to the rotofab 102 large cone setup

Great first post and I agree 100%! This is why we've always stuck with the traditional style intakes. Start making some real power and you see them starve for air.

 

[KenzSS]

For stock the VCM in mafless form is good.

But once you start adding power via heads, cam, displacement etc. Its not going to cut it.
Work out the filter area, then compare with a good cone filter.
You will find the panel filter VCM or other OTR types only flow in the 700cfm range.
Cones will get you 1200cfm+

I gained 50rwhp swapping my OTR to the rotofab 102 large cone setup

That's a pretty serious change ringram! Thanks for the info and welcome to the forum!

 

[ringram]

Thats on a 440 darton, wcch ls7 setup mind.. ~640fwhp

 

[small batch]

guys, this is NOT how you fix this. This problem that the intake causes is real, and can cause damage. Doing this is just like throwing electrical tape over the check engine light, it doesn't actually fix anything.

These intakes have a major design flaw in them that we have been trying to educate people on since they came around for the G8. This design flaw allows unmetered air to enter the engine, causing it to actually run lean. The problem is on a GM is that as it learns it needs the extra fuel at lower throttle, and lower RPM it carries over those changes when you go WOT, which then is not needed. so basically, you have a lean condition at low speeds, and an overly rich condition at higher engine speeds.

To answer at least one question that I know will follow, they dont have this issue in aussie as they usually go "Mafless" or Speed Density for their tuning so its not an issue. It is a problem on a stock car, or how these cars will get tuned here. For this reason we do not use this intake without at least fixing this major oversight in it's design.

VCM say this PCV line relocation kit is the fix for that issue. Can you confirm? Thanks
VCM PCV Line Relocation Kit for OTR Intakes KVE-212

They also say that all new intakes sold will come with this change already done.

 

[reddeadg8]

yes that was the fix, and they have been out for about a year i think.

 

[Brad02ss]

Seems to work for all the Aussie guys, I'll be ordering one in a few months.

 

[ALBY]

I have that kit on my OTR Orssom Intake from down under. and I love it. The intake noise is delicious. So much so, I'm leaving my stock mufflers on the car.




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[small batch]

I have that kit on my OTR Orssom Intake from down under. and I love it. The intake noise is delicious. So much so, I'm leaving my stock mufflers on the car.




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https://www.youtube.com/watch?v=4B5dhdzv7Uw
3:15 on this instillation video shows this intake is not metering the PCV system and appears that it will have the same lean condition that the VCM previously had issues with. Is this installed the same way on yours?

 

[butchas]

https://www.youtube.com/watch?v=4B5dhdzv7Uw
3:15 on this instillation video shows this intake is not metering the PCV system and appears that it will have the same lean condition that the VCM previously had issues with. Is this installed the same way on yours?

I like it and am drooling heavily. My concern is rain. I was under the impression that Orssom OTR was a drag only intake. Have you driven it in any downpours?

 

[small batch]

I like it and am drooling heavily. My concern is rain. I was under the impression that Orssom OTR was a drag only intake. Have you driven it in any downpours?

I don't have one either and I'm drooling too :laugh
The video shows the headliner needs trimmed. I would like to know if the PCV tube is still plugging in the air box. I'm not sure if I want to cut my liner and I'm defiantly not going to tune my car, so I'm not sure if this one would work for me.

 

[andy@livernois]

VCM say this PCV line relocation kit is the fix for that issue. Can you confirm? Thanks
VCM PCV Line Relocation Kit for OTR Intakes KVE-212

They also say that all new intakes sold will come with this change already done.

Yes, this appears to address it. It was quite frustrating trying to convince them they had an issue for nearly 5 years though.

https://www.youtube.com/watch?v=4B5dhdzv7Uw
3:15 on this instillation video shows this intake is not metering the PCV system and appears that it will have the same lean condition that the VCM previously had issues with. Is this installed the same way on yours?

Yes, this is the same exact problem, it will allow unmetered air into the engine, causing it to run leaner than it should at idle, and part throttle, but richer than it should at WOT because it will carry over the learned fueling. So, not only can it develop a vacuum leak, but it actually can cause a drop in power, which is the exact opposite that you should want with performance mods :wink

 

[ALBY]

I got the intake and kit from a member here. The kit moves the PCV Connection onto the correct side of the MAF. NO air slips thru unmetered. I've had no issues with water. I drive in a LOT of wet weather. Car is my daily driver with about 33k on her.

Not sure the RAM air effect is there lol. I am also not sure that if flows better than a rotofab or anything else. I have no dog in that fight. I like that this is an Aussie product and it sounds great, installed in 5 minutes and has been problem free. I prolly have 5000 miles on the intake now.


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