OTR CAI for VX V6

[Jonesy484]

I was wondering if mace does a OTR CAI that will fit a VX V6?
Cheers Jonesy

I am also wondering if its worth doing it to a Duel fuel vehicle?

[MACE]

Hey Jamie,

We don't make one to suit, nor would I recommend one on an ecotec, given the location of the throttle body on the side.

On a duel fuel vehicle it would be fine, however I would recommend going a manifold insulator first. Valve for money this would be the way to go.

If you have any more questions please don't hesitate to ask.

Cheers,
Steve

[jr689]

I saw one on eBay recently for about $375... Some no name brand though.

[jr689]

Yea just found it then, it's the only OTR I have seen for the ecotec...

OTR (OVER THE RADIATOR) COLD AIR INTAKE VT VX VY V6 | eBay

[MACE]

I know they exist, I just wouldn't recommend them

In saying this though if people still wanted to go down that path I would suggest people ask any manufacture if they're not happy with the product for a refund.

Cheers,
Steve

[jr689]

Yea if they were any good you'd hear people talking about them.

They are all show no go in my opinion.

[MACE]

Yea if they were any good you'd hear people talking about them.

They are all show no go in my opinion.

Though we're biased, I can't agree with this (assuming half decent setup). You don't need to take my word for if you can do the testing yourself as shown in the link below

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In saying this though, depending on the current mods, I would recommend a manifold insulator first, or if your budget went far enough, a set of rockers.

Cheers,
Steve

[Jonesy484]

how much is a manifold insulator gonna cost me, and what is required to fit it, and stupid question what does it do?

[Jonesy484]

Yea just found it then, it's the only OTR I have seen for the ecotec...

OTR (OVER THE RADIATOR) COLD AIR INTAKE VT VX VY V6 | eBay

Thats the one my mate has on his VT Super 6, but its kinda flimsy

[immortality]

Though we're biased, I can't agree with this (assuming half decent setup). You don't need to take my word for if you can do the testing yourself as shown in the link below

Browser Warning

In saying this though, depending on the current mods, I would recommend a manifold insulator first, or if your budget went far enough, a set of rockers.

Cheers,
Steve

that's a interesting link Steve, shows how much flow restriction the flexible convoluted sections if intake ducting have overall. seeing as all factory cars have these there is some easy power to be found

[jr689]

Thats the one my mate has on his VT Super 6, but its kinda flimsy

Yea just from the pictures it looks cheap in my opinion ay :S

[MACE]

It's for this reason I said what I said before about buying CAI's

I know they exist, I just wouldn't recommend them

In saying this though if people still wanted to go down that path I would suggest people ask any manufacture if they're not happy with the product for a refund.

Cheers,
Steve

Cheers,
Steve

[MACE]

that's a interesting link Steve, shows how much flow restriction the flexible convoluted sections if intake ducting have overall. seeing as all factory cars have these there is some easy power to be found

Correct Contrary to what most on here say about CAI's, improvements in this area, they genuinely do work with measurable gains. Maybe some people have higher expectations then others in this regard, one thing for sure though is that people can do the testing themselves if they wanted to quite cheaply

Cheers,
Steve

[VT Ryda]

i have that exact otr on my vt, it works great, highly recommended, and its not a no name brand either...

[ch1mp]

Thats the one my mate has on his VT Super 6, but its kinda flimsy

lol...thanks Jonesy...it's actually not flimsy at all. i have my own piping in there now anyway but i've kept the actual intake. works really well in fact. and i've put the MAF sensor as far forward as possible so that i only have one pipe. it actually feels smoother than before and much more responsive. but I can definitely say that it's not flimsy haha. it's made of the same stuff that the original air box is made of

[Jonesy484]

haha woops :P

[MACE]

With the OTR's I've seen for these engines the filters haven't been the best, silicon sealer required to seal the OTR and piping.

I don't know if it was installed correctly or not, as I haven't had first hand experience with it myself. As a general rule of thumb though if people aren't not happy they should let the supplier or company know about their concerns to resolve the issue.

Cheers,
Steve

[TRI570]

would it be worth while replacing the stock flex tubing in the VY with the stainless and rubber hoses found at a supercheap or autobarn? that link seems to think so?

[vsv6dude]

Forced or rammed air induction can throw out the readings by the MAF I recall reading this somewhere in the other commodores forum.

If the vehicle requires extra air just drill or 3" (75mm) or 4" (100mm) hole in the lower half of the cold air intake box behind the headlight area. You don't need to any more than just cut the hole.

Its a cheap mod that will remove restriction in sucking through the box.

In hind sight I bought the Sup 6 OTR for VS V6, and now I would just be happy with the standard intake plus the 75mm hole I have drilled right along side it.

Theres only so much air a v6 can suck with or without the ram.

[immortality]

Theres only so much air a v6 can suck with or without the ram.

That is true for any engine. The reason OTR CAI's work well on the Alloytec engines (as well as the gen III V8's) is that it considerably shortens the flow path of the air into the engine with the TB's facing forward. The shortest and least restrictive path is generally the most efficient

[MACE]

would it be worth while replacing the stock flex tubing in the VY with the stainless and rubber hoses found at a supercheap or autobarn? that link seems to think so?

A smooth bore intake tube certainly won't hurt, the main issue would be the type of material used, in particular the thermal conductivity of the material. Alloy/stainless pipes would transfer heat from the engine bay into the intake like crazy! So you would definitely need to get them insulated

Forced or rammed air induction can throw out the readings by the MAF I recall reading this somewhere in the other commodores forum.
If the vehicle requires extra air just drill or 3" (75mm) or 4" (100mm) hole in the lower half of the cold air intake box behind the headlight area. You don't need to any more than just cut the hole.
Its a cheap mod that will remove restriction in sucking through the box.
In hind sight I bought the Sup 6 OTR for VS V6, and now I would just be happy with the standard intake plus the 75mm hole I have drilled right along side it.
Theres only so much air a v6 can suck with or without the ram.

Theres only so much air a v6 can suck with or without the ram. This would be to assume that there was a zero pressure drop in the induction system, which is certainly not the case. So there is genuinely room for improvement over the factory setup.

As for throwing out MAF signal reading with an aftermarket intake, it’s mainly a problem with kits that run the MAF meter very close to the throttle body. In which case it’s usually common for them to require the ECU software to be re-calibrated

[vsv6dude]

"Theres only so much air a v6 can suck with or without the ram. This would be to assume that there was a zero pressure drop in the induction system, which is certainly not the case. So there is genuinely room for improvement over the factory setup."

Please describe the optimum setup to achieve the zero pressure drop.

[MACE]

"Theres only so much air a v6 can suck with or without the ram. This would be to assume that there was a zero pressure drop in the induction system, which is certainly not the case. So there is genuinely room for improvement over the factory setup."

Please describe the optimum setup to achieve the zero pressure drop.

Theoretically it's impossible, without any additional input of energy, however a single bell mouth attached to the end of the TB will be close enough