full eventuri intake system question

[bmwm3s65]

Long story short, I bought the full eventuri intake plenum, elbow and intake cover. Sounds truly amazing, fits ok, looks like it belongs in a museum, however, when installed on the car, there appears to be a noticeable shading difference between the plenum and the rest of the intake, no matter the light source or angle. I voiced my concerns to Eventuri and they told me that it only appears to look different because of the direction of the carbon fiber. They asked that i take it back off the car and take photos under the same light source. When looking at it under the same light source, the pieces appear to look the same, however, at some angles it still looks off. is the carbon fiber really sensitive to lighting and viewing angles or do the pieces indeed look like difference shades? Does anyone else with the full eventuri setup notice the same thing with theirs?

[LakeSurfer]

Hey, sooo I've worked in an aviation composites shop for a long time and I'm also FAA certified in on wing and off wing composite repairs. Most of what I've worked with is carbon fiber, I'm not an expert but I have a lot of experience.

I think they are full of crap with what they are telling you. Carbon fiber as long as it's real will look the same regardless if the weave pattern, provided they use the same clear coat. Not all clear coats and epoxy resins cute to an absolute clear finish. Very often with less expensive products you'll get a very light brown/yellow finish or they diddnt use a UV resistant resin or clear coat and half of it was exposed to the sun.

My guess is that the parts are made by different suppliers and those suppliers used different finishing products.

I'm 100% sure the light or angle or weave direction has nothing to do with anything if they used the same products and I'm even more certain they used different products between the parts.

[bmwm3s65]

Originally Posted by LakeSurfer

Hey, sooo I've worked in an aviation composites shop for a long time and I'm also FAA certified in on wing and off wing composite repairs. Most of what I've worked with is carbon fiber, I'm not an expert but I have a lot of experience.

I think they are full of crap with what they are telling you. Carbon fiber as long as it's real will look the same regardless if the weave pattern, provided they use the same clear coat. Not all clear coats and epoxy resins cute to an absolute clear finish. Very often with less expensive products you'll get a very light brown/yellow finish or they diddnt use a UV resistant resin or clear coat and half of it was exposed to the sun.

My guess is that the parts are made by different suppliers and those suppliers used different finishing products.

I'm 100% sure the light or angle or weave direction has nothing to do with anything if they used the same products and I'm even more certain they used different products between the parts.

Thanks lakesurfer. I agree, i think the resin may differ between the different parts. the pictures i took when off the car have me second guessing my self as the pieces appear to match when all the pieces are equally lit.

[Redd]

Different thickness of resin will also affect how light plays off the part. But seriously, aren't you taking OCD to a whole new level? Even the Carbon on a Pagani Zonda looks like a different color at different angles.

[roastbeef]

carbon fiber weave will reflect light differently if it is going different angles. look at the light and dark areas of the weave. then turn it a different way. its going to look different in the same light source.

[Scrippy]

I won't stand for this! You should just give them to me so we can straighten this all out lol. I think it looks amazing on your car, enjoy.

[bmwm3s65]

Originally Posted by Redd

Different thickness of resin will also affect how light plays off the part. But seriously, aren't you taking OCD to a whole new level? Even the Carbon on a Pagani Zonda looks like a different color at different angles.

I am OCD and i also expect perfection from an intake that costs several thousand dollars, that being said, the intake is truly a work of art and I really like it. After looking at it from many different angles with different light sources, i am going to say, from my experience with this intake, the shading variance is very sensitive to the angle at which i look at it but overall i think each piece appears to be the same.

[roastbeef]

One thing I like about the Karbonius is the weave all goes the same way. It gives me the fizz.

[GORDON.M3]

Judging by the photos OP has provided, it looks like they used another supplier for the carbon twill they used on the intake vs plenum.
You can tell how sharp the one on the plenum is and the intake cover one has a slight roundness to weave.

It could also be the brand/age of resin that is used that might have discoloration to it before it was used to make the covers/intake.

I wouldn't be concerned as Eventuri puts out amazing products and its prepreg carbon so durability is there.

[MaximusB]

Originally Posted by roastbeef

One thing I like about the Karbonius is the weave all goes the same way. It gives me the fizz.

I was just gonna say the same. My karbonius have no color variation and the weaves are all aligned.

[SAMM3Y]

Looks awesome! Maybe different lot's on part runs give a little difference, I actually like the way the weave changes with the indents on top of the plenum and around the snorkel gives it more depth.

[amrazM]

Return it if you don’t like it....... oh wait

[LakeSurfer]

Originally Posted by roastbeef

carbon fiber weave will reflect light differently if it is going different angles. look at the light and dark areas of the weave. then turn it a different way. its going to look different in the same light source.

the reflection will make it look a little different, however, not to the point of the OP's pictures. the pics show that the individual parts have slightly different tints to them.

[LakeSurfer]

Originally Posted by Redd

Different thickness of resin will also affect how light plays off the part. But seriously, aren't you taking OCD to a whole new level? Even the Carbon on a Pagani Zonda looks like a different color at different angles.

I haven't seen a Zonda in person but i have been fortunate enough to see a couple Huayra's and i can assure you, at least on the cars I've seen, the weave lines up perfectly from panel to panel and there is absolutely zero difference in color, reflection and overall looks from panel to panel. they look like they are all made from 1 continuous roll of carbon.

a couple of his parts have a very faint light brown tint to them. this has nothing to do with the weave and everything to do with the finishing materials or the resin that was used. I believe they use prepreg so either the suppliers are different and use different resin in the cloth or the clear coats are different.

different clear coats will perfectly match in certain lights and be completely off from each other in other light.

I guess another possibility would be that, clear coats are 2 parts (A and B), perhaps when they cleared one part they may have used more of part A (or B) than the other parts. the brown(ish) tint could be from the clear curing to fast, AKA to much hardener.

[porsche959]

How much is this kit? I’d be bothered enough to return or ask for a replacement. I’m guessing most people buy this for looks as well as sound.

[bmwm3s65]

Originally Posted by porsche959

How much is this kit? I’d be bothered enough to return or ask for a replacement. I’m guessing most people buy this for looks as well as sound.

This kit is around $3500. I am going to ask for a replacement. After researching this more, i have found that in the light, the carbon fiber twill appears to match, however, when not in direct light, I can the actual resin, and the shading of the resin does not appear to be the same on the plenum compared to the intake cover and elbow. Since the plenum and intake cover are brand new, and the intake cover appears to match the elbow which is about a 11 months old, i would think the issue is with the plenum finish. i looked at other pictures from other eventuri reviews and none appear to look "off" like mine appears to be.

[akkando]

Originally Posted by bmwm3s65

This kit is around $3500. I am going to ask for a replacement. After researching this more, i have found that in the light, the carbon fiber twill appears to match, however, when not in direct light, I can the actual resin, and the shading of the resin does not appear to be the same on the plenum compared to the intake cover and elbow. Since the plenum and intake cover are brand new, and the intake cover appears to match the elbow which is about a 11 months old, i would think the issue is with the plenum finish. i looked at other pictures from other eventuri reviews and none appear to look "off" like mine appears to be.

This might be a "problem" with all the kits though. You better find out if you need a replacement or a refund. I know Matt at Obsessed Garage Money2536 has it, maybe he could tell you if it matches on his car or not.

https://www.m3post.com/forums/showthread.php?t=1635323

[bmwm3s65]

Originally Posted by akkando

This might be a "problem" with all the kits though. You better find out if you need a replacement or a refund. I know Matt at Obsessed Garage Money2536 has it, maybe he could tell you if it matches on his car or not.

https://www.m3post.com/forums/showthread.php?t=1635323

I already compared Matt's Pictures to mine. At least from the pictures his system appears to match, however, i have not reached out to him yet to confirm his experience.

[mgmarsh39]

From your pictures alone, I am just not seeing it. I can certainly relate, because if it bothered me enough to post on the forum about it, I would certainly want to return it.

Someone on the forum would definitely buy it off you should they not accept the return.

[porsche959]

Originally Posted by mgmarsh39

From your pictures alone, I am just not seeing it. I can certainly relate, because if it bothered me enough to post on the forum about it, I would certainly want to return it.

Someone on the forum would definitely buy it off you should they not accept the return.

To me the plenum looks like it has a whitish hue, whereas the intake box looks to have a brownish/orange color at certain angles.

[Nate@IND]

Eventuri offers the best support that I have personally seen in the aftermarket business. Eventuri’s head engineer is already looking into this matter and will contact the original poster shortly.

[M3anest]

Originally Posted by roastbeef

One thing I like about the Karbonius is the weave all goes the same way. It gives me the fizz.

Same, I tried to replace an elbow from Karbonius and they had me send the whole thing so I get matching weave. Sound is truly amazing.