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 »  Home  »  Product Reviews  »  Subaru  »  Impreza (RS, WRX, STI)  »  Engine / Power  »  Searching for a Lightweight One-Piece Driveshaft.
Searching for a Lightweight One-Piece Driveshaft.
By Michael Anthony | Published  10/24/2005 | Engine / Power | Rating:
Finding More Potential in the Mighty STi :


What performance benefits can one expect after installing the A.C.P.T. carbon fiber one-piece Driveshaft, specifically in an STI?

Benefits of the A.C.P.T. driveshaft are as follows:

*weighs only 13.25 Pounds.

*More Power to the Ground.
Gains of over 5% are common due to the reduction of rotating mass.

*Minimizing Power Loss due to Vibration.
The carbon fiber has much better dampening characteristics than other materials and helps improve power in the higher RPM range where vibrations are common.

*Faster Acceleration.
The reduction in rotating mass will improve the STi’s ability to accelerate.

*Carbon Fiber Driveshaft is Safer in case of Failure.
Carbon fiber will break up or shatter on impact. This Driveshaft will not break through and enter the passenger compartment like other materials can.

*Better Power to Weight Ratio.


*The A.C.P.T. carbon fiber Diveshaft is capable of handling 1,500
Horsepower.

Pages: « Back 1 2 3 4 5 6 7 Next » 
Next: With a Decision Made, I Await My Driveshaft and Prepair for It's Installation. »
Comments
  • Comment #1 (Posted by an unknown user)
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    Very good write up. Thanks
     
  • Comment #2 (Posted by an unknown user)
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    good stuff man.
     
  • Comment #3 (Posted by an unknown user)
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    Great write up, I am definately buying one of the as soon as I have the money. Thanks for saving me the painfull research of trying to find this almost "fable-like" part.
     
  • Comment #4 (Posted by an unknown user)
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    ACPT always strives to exceed customer's expectations. We had an advantage with the STi driveshaft development project because one of our employees (Driveshaft Product Manager) owns a 2005 STi and he was the guinea pig for development. He noticed the same performance gains you did, but also one more you didn't mention. The car stops (decelerates) much quicker when downshifting, perhaps anothe safety feature worth mentioning. Thanks for the good review!
     
  • Comment #5 (Posted by an unknown user)
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    I only wonder what the light ones would gain you also would the 500 dollar unit be the better trade off.
     
  • Comment #6 (Posted by an unknown user)
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    My STI eagerly recieved one of the first units and has yet to be damaged even with repeated abuse, Such as the dccd set 80 rear with 400 wheel horsepower
     
  • Comment #7 (Posted by an unknown user)
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    Are you still happy with this drive shaft And what modifications were done to your car before the installation
     
  • Comment #8 (Posted by an unknown user)
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    Excellent write up, i know where my next thousand bucks is going!


    -Zrex
     
  • Comment #9 (Posted by an unknown user)
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    Great review!
     
  • Comment #10 (Posted by an unknown user)
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    normally i wouldn't have read an article this long about a drive shaft buy you told a great story. kudos
     
  • Comment #11 (Posted by an unknown user)
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    Excellent write-up!! I want a C/F driveshaft now :)
     
  • Comment #12 (Posted by an unknown user)
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    must... resist... temptation... to... impulse... buy...
     
  • Comment #13 (Posted by bynddrvn)
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    Very interesting and informative article. Normally, I would not have thought about replacing the driveshaft as one of my modifications, but you make some great points. There is a lot of HP that is lost from the engine to the wheels and anything we can do to "put the power to the wheels" is a wicked awesome mod in my book.
     
  • Comment #14 (Posted by Dan)
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    I have actually recently purchased a composite shaft from CTG TORQline in the UK. I can quote that no modifications were required to the floorboard of the vehicle.

    The propshaft looks great and and can definately notice some performance increases, throttle response and decelleration seem much better.

    These guys are involved with many of the top end GT teams around the world. I reckon the part will whandle my mere 500bhp no problem!
     
  • Comment #15 (Posted by an unknown user)
    Rating
    Great write up, I always wondered if replacing the driveshaft would be worth it. Sounds like a lighter driveshaft is the way to go!
     
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