CARBON FIBER DRIVESHAFT

[Doc]

Originally Posted by GFORCE1320

We've sold several of our 3.75" Carbon Fiber shafts for the 2010 Camaro. They all worked out great.
We sell them with a billet pinion yoke for the rear diff so you can get rid of the adapter and get away from the bolts that bend or break back there.
If your not making that much power we can do one with an adapter, we have PST make our shafts. I know they have made Carbon Fiber shafts for some guys on here without the billet pinion yoke.
Were starting a new batch of pinion yokes this week if anyone is needing one.

Thanks
Chris

What does the one with just the regular adapter weigh and how much is it?

[Driveshaftshop]

Hi, yes i would have to say for the extra cost and chance of the heat problem with the carbon fibers glue an aluminum one piece shaft would be a great alternative. like i said all the parts would be the same except for the tube so you decide

[GFORCE1320]

Originally Posted by Doc

What does the one with just the regular adapter weigh and how much is it?

It weighs about the same as the stock because it uses a cv joint on the front. If it had the same rubber adapters like the stock one then it would weigh less but then it wouldnt be any better the stock.
Cost is $1250.

The real benifit from Carbon Fiber is the strength and reduction in drivetrain shock.

[4RD H8R]

I don't know for sure but I think this would be similar in real world results to a old 180* crankshaft. They used to make small block chevy cranks with the throws at 180* instead of 90* in round track racing. The reasoning was not for power but for acceleration. You could build 2 identical engines but put a 180* crank in one, 90* in the other, on a dyno they would make almost identical power, but on the track it was a different story. The 180* would out accelerate the standard engine coming out of corners due to less rotating mass in the engine. They would pull a car length or two by revving quicker. I had a 180* 392ci chevy (3 5/8 stroke 400 block) and it would rev like crazy but it sounded like a v-6 (side effect of the crank/cam/firing order). They ended up outlawing them because of the unfair advantage they had.

It might not sound like a lot but 2-3 pounds lighter in rotating mass like that, especialy in a extended race like round track or road couse, could be a great benifit. It just won't show up on a dyno, unless mabey you are looking at how long it takes you to accelerate on a chassis dyno with the c/f vs. without?

[Driveshaftshop]

Hmm, interesting point. We could use a smaller u-joint to save weight on one and and lighten the CV housing like we did for Reese Millens Red Bull Pikes Peak car on the CV. if your willing to sacrifice some strength on the joint i would be willing to make one and have some one test it ? im new at posting and cant seem to figure out how to post a picture on here. if someone would give me some hints ill post 2 ways we lighten the CV we just recieved our destructive test results on our Carbon fiber bonds for a 1310 joint shaft and to our suprise the niether the bond or the tube broke but the joint did at 3100lbs (this is using one of our special solid u-joints)

[hypurone]

Originally Posted by Driveshaftshop

im new at posting and cant seem to figure out how to post a picture on here. if someone would give me some hints ill post 2 ways we lighten the CV

You need to have the pics you want to use on a share site (photobucket, flickr etc) then copy the direct link to the photo from the site and use the "insert image" button above (yellowish square w/ mountains) and paste that direct link info there.

[v6sonoma]

Originally Posted by hypurone

You need to have the pics you want to use on a share site (photobucket, flickr etc) then copy the direct link to the photo from the site and use the "insert image" button above (yellowish square w/ mountains) and paste that direct link info there.

or you can click go advanced and then manage attachments and upload them from your HD or via a link to another site.

[Doc]

Originally Posted by Driveshaftshop

Hmm, interesting point. We could use a smaller u-joint to save weight on one and and lighten the CV housing like we did for Reese Millens Red Bull Pikes Peak car on the CV. if your willing to sacrifice some strength on the joint i would be willing to make one and have some one test it ? im new at posting and cant seem to figure out how to post a picture on here. if someone would give me some hints ill post 2 ways we lighten the CV we just recieved our destructive test results on our Carbon fiber bonds for a 1310 joint shaft and to our suprise the niether the bond or the tube broke but the joint did at 3100lbs (this is using one of our special solid u-joints)

To post pics, when you reply to a post, click on the advanced button. Scroll down till you see the advanced options section and click on the "Manage Attachments" button. You can attach and upload pics from your hard drive there.

[Doc]

What would the power rating be on the lightened joint?

[Doc]

Originally Posted by 4RD H8R

I don't know for sure but I think this would be similar in real world results to a old 180* crankshaft. They used to make small block chevy cranks with the throws at 180* instead of 90* in round track racing. The reasoning was not for power but for acceleration. You could build 2 identical engines but put a 180* crank in one, 90* in the other, on a dyno they would make almost identical power, but on the track it was a different story. The 180* would out accelerate the standard engine coming out of corners due to less rotating mass in the engine. They would pull a car length or two by revving quicker. I had a 180* 392ci chevy (3 5/8 stroke 400 block) and it would rev like crazy but it sounded like a v-6 (side effect of the crank/cam/firing order). They ended up outlawing them because of the unfair advantage they had.

It might not sound like a lot but 2-3 pounds lighter in rotating mass like that, especialy in a extended race like round track or road couse, could be a great benifit. It just won't show up on a dyno, unless mabey you are looking at how long it takes you to accelerate on a chassis dyno with the c/f vs. without?

A dyno is good for some things but they're not the be-all end-all for performance measuring. I'm all in favor of improving car response times which is why I've spent the time and money I have so far on my car. Between just the wheels and brake rotors I've removed 55 lbs of unsprung rotating weight from the car (that's the total of all 4 corners) and believe me, I can feel the difference. The driveshaft is the last part of my plan for rotating weight. Well for now at least until I get the mod bug again and start looking at the engine.

[speedster]

Originally Posted by Doc

A dyno is good for some things but they're not the be-all end-all for performance measuring. I'm all in favor of improving car response times which is why I've spent the time and money I have so far on my car. Between just the wheels and brake rotors I've removed 55 lbs of unsprung rotating weight from the car (that's the total of all 4 corners) and believe me, I can feel the difference. The driveshaft is the last part of my plan for rotating weight. Well for now at least until I get the mod bug again and start looking at the engine.

Cool stuff Doc...

Hey, if you take the crank out of the engine it gets rid of a bunch of rotating weight...

55 lbs is a lot. You can probably shave some more off with selected suspension components too. Your car will be a beast...

[Driveshaftshop]

Originally Posted by Doc

What would the power rating be on the lightened joint?

Being we use a custom 108mm Cv with upgraded internals it would be capable of about 6500ft lbs of torque, thanks for the picture thing guys. i'll post some pictures tomorrow of what we can cut safely and what it would represent in weight savings. Here is a picture of the style we did for Millen.

[Doc]

Originally Posted by Driveshaftshop

Being we use a custom 108mm Cv with upgraded internals it would be capable of about 6500ft lbs of torque, thanks for the picture thing guys. i'll post some pictures tomorrow of what we can cut safely and what it would represent in weight savings. Here is a picture of the style we did for Millen.

Now that's a beautiful joint... If that's what they're going to look like, I may have to put a window in the center console so people can see poetry in motion.

[Doc]

Originally Posted by speedster

Cool stuff Doc...

Hey, if you take the crank out of the engine it gets rid of a bunch of rotating weight...

55 lbs is a lot. You can probably shave some more off with selected suspension components too. Your car will be a beast...

Ya know... it's thinking like that that can get you far in a government job...