Originally Posted by
FUBU
As I have never seen or held a diffusor (OEM or the glassfiber copies) IRL so the question that seem to be the issue of this project failing is:
if we make an exact copy of (either oem or the gf copy) and make it in cf material will it be a good fit. I can only tall the manufacture this: here is the piece, make a mold and x copies. If you say that the OEM diffusers are flexible and needed to flex in order to get a good fit, I would say that cf material do not flex. neither does glass fibre. But as I have never seen an oem on, or the copies, I cannot see how there should not be a good fit. But maybe you guys who own them can help me out understanding this. maybe photos of a bad fit. Anyways, if there is a slight chance of bad fitment from the start if we copy and make a mold of the oem/gf copies, then we need to do some from scratch. Let me say this, we are making some, if it is for everyone or just adams black series, depends really on this fitment issue. I do not want to carry out group buy for a product that is bound to crash and burn from the start. Either we all gamble (fitment) or we just go for plastic oem and foliate them in carbon fiber.
But just look at the SLS AMG BS, so nice with the carbon fiber...
so what do you guys think.. will the mold arise? if yes, should we try to reproduce it in cf? or will the fitment issue still occur due to material choice.
Tired now, hope english is alright.
Your English is ****, Phil!!! J/K
The rear fascia (bumper) is a TPE plastic bumper... so, it has a bit of flex to it. It's to be expected that if you took a mold of 20 bumpers, there would be a millimeter or two difference between each of them based on chassis flex over the years (we
are putting these on eight-year-old vehicles, after all). The OEM diffusers (Mopar) are made of the same flexible TPE material as the bumper -- in other words, if there is any deformation in the bumper, the Mopar diffusers will simply flex to follow the millimetric deviation. Again, we're not talking massive warping... just a slight radii change from the rear edge of fascia to the part going underneath the car (from one vehicle to the next).
The carbon-fiber (CF) pieces will have the same rigidity as the fiberglass (FG) pieces that are currently available. So, it really won't matter which piece (Mopar or FG) your guys use as a mold, because the finished pieces will be rigid no matter what. The tolerance will need to be on the back side of the piece... the "finished" outer surface should be uniform no matter what. Any minimal "tweaks" that need to happen for proper flush fitment can be performed on the side that adheres to the car. Once installed, you'll never see it.
Of course, you will need to drill weep holes in the bottoms of the fins to allow water to escape (just like on the Mopar units)