 ACPT Carbon Fiber Driveshaft GP, This thing's a GO!!!! |
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 Oct 19 2006, 09:05 PM
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#21
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Advanced Member  Group: Advanced Members Posts: 321 Joined: 15-November 04 From: Canada Member No.: 542  |
QUOTE (trackbird @ Oct 19 2006, 02:22 PM)  I'd just give them a call. And, what do you have in that thing to make that kind of power? (I'll probably be splitting this portion off later). 412 ci LS2 M6 that makes 506 rwhp NA and then for the strip I'm using a bit of spray. About 150 shot worth. The car is a lot of fun, not really good at any one thing, but pretty good at most. Suspension has been set up for autocross, motor and drivetrain (except having a real differential instead of a spool) for drag racing. the interior still has all the factory options(Ac, power everything and a CM roll bar) The car is starting to get heavy so I'm going to try to lighten it up a bit to help it perform a little better at everything. This year I want to do a K member, possibly the drive shaft, and light weight carpet. I also may have access to a light weight WS6 hood to replace the WS6 hood. I think all of these would help me shed up to 75-90 lbs. My diff does not seem to like the torque combined with the weight about 3800lbs with me in it. Broke the spiders at an autocross and 5 weeks later took 8 teeth of the year old ring and pinion at a drag event. I also thought the CF shaft might soften the M6 hit on the launch. Thats the Coles notes on it. |
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Oct 19 2006, 10:05 PM
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#22
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FRRAX Owner/Admin Group: Admin Posts: 15,432 Joined: 13-February 04 From: Ohio Member No.: 196 |
They are in CA, so I figured I'd call them about 6pm EST. The gentleman I need is gone for the day, so I left him a voicemail. I'll post the info as soon as I get it.
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Oct 19 2006, 10:20 PM
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#23
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Experienced Member Group: Advanced Members Posts: 1,957 Joined: 21-April 04 From: Utah Member No.: 317 |
The ACPT CF driveshaft may soften the shock, but it won't save weight. Mine was about a pound heavier than the stock aluminum LS1 driveshaft. The big advantage is a much higher critical speed and the much safer "brooming" action if it breaks.
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Oct 19 2006, 10:53 PM
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#24
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Advanced Member Group: Advanced Members Posts: 321 Joined: 15-November 04 From: Canada Member No.: 542 |
QUOTE (Cal @ Oct 19 2006, 04:20 PM) The ACPT CF driveshaft may soften the shock, but it won't save weight. Mine was about a pound heavier than the stock aluminum LS1 driveshaft. The big advantage is a much higher critical speed and the much safer "brooming" action if it breaks. It should save a few off the weight of my current DOM tubing DS. It is close to 25 lbs with 1350 yokes. I like the idea of the safer brooming too, but would hope it would never happen. Rampant |
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Oct 20 2006, 12:38 PM
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#25
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Member Group: Advanced Members Posts: 82 Joined: 10-September 05 From: Brisbane, QLD, AUS Member No.: 885 |
QUOTE (Cal @ Oct 19 2006, 05:20 PM) The ACPT CF driveshaft may soften the shock, but it won't save weight. Mine was about a pound heavier than the stock aluminum LS1 driveshaft. The big advantage is a much higher critical speed and the much safer "brooming" action if it breaks. AS big as your specific DS is Cal, you probably can give your vehicle another nickname: Freightliner Columbia (IMG:http://www.frrax.com/rrforum/style_emoticons/default/tongue.gif) |
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Oct 20 2006, 03:22 PM
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#26
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Advanced Member Group: Advanced Members Posts: 326 Joined: 10-July 04 From: Houston, Tx Member No.: 392 |
If my motor didnt go, id be all over this.
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Oct 20 2006, 03:54 PM
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#27
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FRRAX Owner/Admin Group: Admin Posts: 15,432 Joined: 13-February 04 From: Ohio Member No.: 196 |
QUOTE (Stang Killer @ Oct 20 2006, 11:22 AM) If my motor didnt go, id be all over this. You blew it up? What happened? |
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Oct 20 2006, 08:00 PM
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#28
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FRRAX Owner/Admin Group: Admin Posts: 15,432 Joined: 13-February 04 From: Ohio Member No.: 196 |
I just hung up with the tech guys at ACPT. The info you seek is this.
The 3" version (3 1/4") broke the yoke ears off at 2500 ft lbs of actual applied torque (in a test fixture), they've never been able to break the actual shaft, the U-joint or yokes break before the carbon tube. It weights about 11 lbs The 3 3/4 inch version handled 6000 ft lbs applied to the actual driveshaft and something (besides the shaft) broke in that case also. It weights about 13-14 lbs. He said they set the limits based on the limits of the U-joints that fit these shafts. It's not so much a function of the actual shaft, but the attaching hardware. Meaning, if you're u-joints fit it, and you haven't broken them, you won't break it. All better? (IMG:http://www.frrax.com/rrforum/style_emoticons/default/beerchug.gif) |
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Oct 20 2006, 09:33 PM
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#29
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Seeking round tuits Group: Advanced Members Posts: 5,522 Joined: 24-December 03 From: Kentucky Member No.: 33 |
Do these include U-joints and the slip yoke for a T56, or just the bare driveshaft?
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Oct 20 2006, 09:37 PM
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#30
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Engine and Tools Moderator Group: Advanced Members Posts: 1,859 Joined: 23-December 03 From: Lebanon TN Member No.: 6 |
mine came with everything needed.
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Oct 20 2006, 11:06 PM
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#31
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FRRAX Owner/Admin Group: Admin Posts: 15,432 Joined: 13-February 04 From: Ohio Member No.: 196 |
QUOTE (sgarnett @ Oct 20 2006, 05:33 PM) Do these include U-joints and the slip yoke for a T56, or just the bare driveshaft? I'm going to get Sean grounded...... (IMG:http://www.frrax.com/rrforum/style_emoticons/default/ph34r.gif) |
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Oct 20 2006, 11:08 PM
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#32
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Seeking round tuits Group: Advanced Members Posts: 5,522 Joined: 24-December 03 From: Kentucky Member No.: 33 |
We'll have several waves of houseguests next month - sleeping in the garage doesn't sound all that bad ....
This post has been edited by sgarnett: Oct 20 2006, 11:12 PM |
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Oct 20 2006, 11:33 PM
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#33
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Advanced Member Group: Advanced Members Posts: 326 Joined: 10-July 04 From: Houston, Tx Member No.: 392 |
QUOTE (trackbird @ Oct 20 2006, 10:54 AM) You blew it up? What happened? I was packing up my car leaving my parents house to come back to school and time I got in, before I touched anything the oil pump died and it started knocking. I was dissapointed to say the least but thankful that it happened there because to tow it back to my parents house wouldnt have been cheap. Ill PM you to discuss the rest. don't wana clutter this thread up too much, lol. |
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Nov 6 2006, 01:21 AM
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#34
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FRRAX Owner/Admin Group: Admin Posts: 15,432 Joined: 13-February 04 From: Ohio Member No.: 196 |
I've got a friend interested. He has to verify that the 9" he's looking at will fit with a stock length (I think it should).
We have one "in" (Andy J), one possible (foxxtron) and Sean's thinking... and my friend. Anyone? |
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Nov 6 2006, 01:15 PM
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#35
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Member Group: Advanced Members Posts: 71 Joined: 13-April 05 From: Mayport, FL Member No.: 721 |
I am totally in. How much is the cost with more than 5 people?
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Nov 6 2006, 01:26 PM
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#36
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FRRAX Owner/Admin Group: Admin Posts: 15,432 Joined: 13-February 04 From: Ohio Member No.: 196 |
QUOTE (ss9c1man @ Nov 6 2006, 08:15 AM) I am totally in. How much is the cost with more than 5 people? With 5 or more, it's $595 (which is $200 off). After that, we'd need about 15 buyers and then it's only about $10 more off.... |
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Nov 6 2006, 02:08 PM
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#37
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Seeking round tuits Group: Advanced Members Posts: 5,522 Joined: 24-December 03 From: Kentucky Member No.: 33 |
I can resist anything but temptation. It's too good a price to pass up, but I just bought a car for my wife and the season is over, so, uh, take your time. February would be fine (IMG:http://www.frrax.com/rrforum/style_emoticons/default/smile.gif)
Yeah, I'm in (IMG:http://www.frrax.com/rrforum/style_emoticons/default/banghead.gif) (IMG:http://www.frrax.com/rrforum/style_emoticons/default/smile.gif) Quick, somebody buy my wheels (IMG:http://www.frrax.com/rrforum/style_emoticons/default/biggrin.gif) This post has been edited by sgarnett: Nov 6 2006, 02:10 PM |
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Nov 6 2006, 02:58 PM
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#38
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FRRAX Owner/Admin Group: Admin Posts: 15,432 Joined: 13-February 04 From: Ohio Member No.: 196 |
If it runs a bit longer, I'll probably grab one too. We just bought a car for my wife too.
That's: IN AndyJ 9ssc1man Sgarnett Possibly in Foxxtron Zane (local to me) Me (if it runs long enough) |
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Nov 6 2006, 04:55 PM
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#39
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Blimey, something completely different... Group: Advanced Members Posts: 200 Joined: 16-January 04 From: San Jose, CA Member No.: 132 |
I need a balance driveshaft, and it'd be wicked cool to get CF - it's not that much more than a 1LE at that price (OK, I'm trying to rationalize, give me a break).
I'm in. The smaller one. D |
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Nov 6 2006, 05:15 PM
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#40
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FRRAX Owner/Admin Group: Admin Posts: 15,432 Joined: 13-February 04 From: Ohio Member No.: 196 |
That's:
IN AndyJ 9ssc1man Sgarnett Dan Possibly in Foxxtron Zane (local to me) Me (if it runs long enough) |
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