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03-07-2020, 11:45 AM | #1 |
Scooby Newbie
Member Sales Rating: (3)
Member#: 487057
Join Date: Jun 2018
Chapter/Region:
BAIC
Location: California
Vehicle:2002 WRX Wagon PSM |
I put my shaft in a tranny and I liked it.
Product: PST carbon fiber one piece driveshaft
Vehicle: 2002 wrx with 5mt and r160, lwfw, lwcp, Exedy stage 1 heavy duty organic clutch, 16g-xt tl;dr: go buy one now! First off, let me say wow! Installation was a breeze. I've replaced my driveshaft twice over the last two years with used oem pieces of garbage. Yeah, sometimes I'm a slow learner. Both times provided improvement, but I never really felt satisfied afterwards. Before I go too far in to things, let me say I highly recommend this driveshaft. First things first. This thing is gorgeous. It's an absolute work of art. Here are some pictures that attempt to show the beauty. Just keep in mind, I never claimed to be a professional photographer, and I was eager to install it. Here's a side by side of the two. The carbon fiber shaft is significantly lighter than the stocker. I could easily pick it up with one hand, while the stock one too a bit more effort to lift. The shaft has a yellow mark on it which I assume had something to do with the balancing procedure. My rear diff also has a yellow mark on the flange so I decided to get them as close to lined up as possible as a starting point. They didn't line up perfectly, but it's pretty close. You can also barely see in that last picture where I cut a small notch out of the t-brace just above the shaft. The clearance was just a little too tight for my liking. I also had to leave the protector off that bolts to it. It wasn't even close to fitting back on there. Everything else was pretty straightforward. The included hardware worked perfectly. Anyways, on to the actual review. The first thing I noticed was starting from a stop. The car used to buck a little bit and almost seemed to delay before actually taking off. There were a few distinct clunks. With the new shaft, no more! No clunks, and it takes off so smoothly. Shifting between 1 through 4 used to be somewhat rough and jerky. Say what you want about driver skill. I'll come back to that later. Now I can barely feel the shifts. At first I genuinely wondered if I had somehow just shifted in to neutral but the car kept accelerating. Letting off the throttle, and getting back on it, is massively improved as well. There's barely any perceptible noise or movement from the drivetrain, other than the change in acceleration. There was however a very noticable, and to be expected, decrease in engine braking. I can live with that. In stop and go traffic, this thing makes a huge difference. I imagine the two piece was flopping around quite a bit. Doing the pedal dance is so much less unpleasant now. There's virtually no jerkiness anymore. On the topic of vibrations, yes there is a minimal amount that I observed. If I maintain 30-35mph, I get a slight wub wub. It's hardly noticable even if you're listening/feeling for it. I've taken it up to 135mph maintaining speed at 5mph increments and noticed no other vibration or noises. Disclaimer: not done on public streets. Back to driver skill which I mentioned earlier. While it's possible this helps in areas I or anyone else may be lacking in, there's also areas where it may exaggerate things. I've found that downshifting requires a little more precision. The stock shaft probably absorbs the shock from improper rev matching a little better. This shaft has gotten me to concentrate on that and hone my skills a bit so that could be viewed as a benefit. Other than that, I've not noticed any negative side effects. Well, I think I've typed enough on this. If you actually read all of this, I applaud you. If I convince one person to get a one piece driveshaft, it'll make it worth it. This is a highly overlooked mod. Sure it doesn't add 25hp, but it makes the car so much more fun and enjoyable to drive. I can't recommend it enough. That's what it's all about. Go buy one now, and install it asap!
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Last edited by MortonCharbo; 03-07-2020 at 12:04 PM. |
04-26-2020, 03:57 AM | #3 |
Scooby Newbie
Member Sales Rating: (3)
Member#: 487057
Join Date: Jun 2018
Chapter/Region:
BAIC
Location: California
Vehicle:2002 WRX Wagon PSM |
Let me just say, do it. The aluminum version might be just fine too at about a third the cost, but I dunno. I originally ordered the aluminum but was told there was a wait of several weeks. Patience, or lack thereof, got the better of me. I'm not the least bit disappointed, and have zero regrets.
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