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Chrome on Manifold

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Smiley Veteran Volks Folk

2,125 posts · joined Oct 2008 ·

#827063
Hey Vee Dub Heads.


I'm just replacing the 1300 single port manifold off my Baja with a 1500 one (hopefully pick up a half a horsepower or something 😂)

The 1500 one appears to have been chromed at some stage in it's life (a bit dull now)

I was just wondering if this is going to effect the inlet air temperature at all.
Will the chrome heat the air?
Or will it reflect heat away and give cooler inlet air?

It's no drama for me to pull it off again in the near future and clean it off. Just wanted to know if it's doing anything.



Smiley 😎
If you said I was a Volkswagen man, you'd be right.

cam070 Custom Title Time!

1,332 posts · joined Jul 2009 ·

#827065
Depends if the chrome is on the inside or outside.

If on the outside, it will refect some of the heat, but I'd say it wil make a minimal difference as you are still sucking air from the same place.

Smiley Veteran Volks Folk

2,125 posts · joined Oct 2008 ·

#827073
cam070 wrote:Depends if the chrome is on the inside or outside.

If on the outside, it will refect some of the heat, but I'd say it wil make a minimal difference as you are still sucking air from the same place.
As far as I can tell it's only on the outside.



Smiley 😎
If you said I was a Volkswagen man, you'd be right.

Sides Veteran Volks Folk

2,220 posts · joined May 2007 ·

#827076
How much wood would a Woodchuck chuck if a Woodchuck could chuck wood ???

😀

Chrome will reflect more heat to some extent and stop it absorbing some... but then since the manifold is shiny it also won't disperse heat as well as if it was matt (shiny objects have less surface area)... so yeah, prolly no definitive since it would vary with the amount ambient heat compared to radiant heat answer !!!

😂

(subtitle : stuff knows for sure, but prolly no noticeable difference)
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Smiley Veteran Volks Folk

2,125 posts · joined Oct 2008 ·

#827081
Sides wrote:How much wood would a Woodchuck chuck if a Woodchuck could chuck wood ???

😀

Chrome will reflect more heat to some extent and stop it absorbing some... but then since the manifold is shiny it also won't disperse heat as well as if it was matt (shiny objects have less surface area)... so yeah, prolly no definitive since it would vary with the amount ambient heat compared to radiant heat answer !!!

😂

(subtitle : stuff knows for sure, but prolly no noticeable difference)
Cool man. Thanks for your reply. I was more worried about whether it was going to flamethrower my engine or some thing really bad.


Smiley 😎
If you said I was a Volkswagen man, you'd be right.

Joel Now containing 100\% E-Wang

9,368 posts · joined Feb 2006 ·

#827085
It will make the best part of sweet FA difference.

I've got 2 identical weber DCN carbs and twinport manifolds that I've had on the same engine.

One manifold is chrome the other is just bare and it makes absolutely no difference.

The charge is moving that quick that it doesnt have time to stop and absorb or shed heat because of whats on the outside of the manifold.