What did you do to the G today?
#9992
Join Date: May 2017
Location: Washington State
Posts: 14,817
Received 2,473 Likes
on
2,164 Posts
Coupe 6MT Premium RAS
#9996
#9997
Nice
Is that a carbon wrap or a true carbon brace. If it's a true carbon brace. How good would a frontal collision be.
#9998
Join Date: May 2017
Location: Washington State
Posts: 14,817
Received 2,473 Likes
on
2,164 Posts
Coupe 6MT Premium RAS
Hollow core would typically be substantially weaker than aluminum unless it was much thicker to compensate. Foam core would be much stronger than aluminum though, CF can distribute the impact incredibly well if it's foam filled. It's pretty common to find foam filled CF on high end sports cars now as OEM equipment.
true carbon, not a wrap. Its multiple layers of carbon at various orientations and strand types along with 2 layers of Soric LRC core material separated with a few more layers of carbon for extra thickness where I wanted to add rigidity all forming a nice sandwich ready for infusion. A surprisingly large amount of engineering went into this.
Front crash bar doesn't really do much for you in terms of a frontal collision, it's the two main beams that run along both sides of the engine that form the bulk of the crumple zone.
Pic during some of the early layup steps:
Hollow core would typically be substantially weaker than aluminum unless it was much thicker to compensate. Foam core would be much stronger than aluminum though, CF can distribute the impact incredibly well if it's foam filled. It's pretty common to find foam filled CF on high end sports cars now as OEM equipment.
e92:
e46:
I wanted to get better at building strong structural carbon fiber parts, so this seemed like a good start for bang for the buck in terms of weight loss and practice. Also my goal is to take off as much weight from the front of the car as possible, so this is a good place to start considering its at the very tip of the car. The new carbon fiber bar weights only 5.2lbs, stock was 12.7lbs. I did my best measurement of torsional rigidity and it seems to be about the same strength as the aluminum, maybe 10% less. However I expect its much better in terms of tensile strength across the two mounting locations since I put in multiple layers of unidirectional fibers running across and really I expect that's where the strength really counts. Sadly I don't have a method to test tensile strength. I haven't had a chance to go driving it yet, but I'll probably do some back to back testing with the aluminum and see if I can tell a difference.
Super Moderator
iTrader: (3)
Premier Member
iTrader: (11)
Most likely going to keep it around as an extra car, maybe give it to my daughter when she turns 16. After putting stock wheels back on it of course.
Super Moderator
iTrader: (3)
Originally Posted by LoSt180
That's pretty rad.Actually got the boot when my kids started riding their bikes a lot and I got tired of moving things around 🤣.Most likely going to keep it around as an extra car, maybe give it to my daughter when she turns 16. After putting stock wheels back on it of course.