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Old 12-25-2012, 08:58 PM   #101
stikboy
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Yeah, I hear ya. My experience wasn't easy...just easier than yours...
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Old 12-26-2012, 12:01 PM   #102
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So what does it mean when the car is in 5th gear with the parking brake completely up and the crank is still moving counter clockwise??
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Old 12-26-2012, 12:07 PM   #103
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I'm pretty sure it's a bad deal for the crank to move counterclockwise. You CAN move it counterclockwise, but you shouldn't. I paid for the tool, it was worth it.

I'll loan you the tool for a $5 shipping fee. I've got the belt tool too.
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Old 12-26-2012, 01:44 PM   #104
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Quote:
Originally Posted by Dale2011WRX View Post
I'm pretty sure it's a bad deal for the crank to move counterclockwise. You CAN move it counterclockwise, but you shouldn't. I paid for the tool, it was worth it.

I'll loan you the tool for a $5 shipping fee. I've got the belt tool too.
Well the thing is I'm driving back to my place on Friday and I really just want to get this done here... whats the overnight shipping cost to 48640?
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Old 12-26-2012, 03:44 PM   #105
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Quote:
Originally Posted by chargalar View Post
So what does it mean when the car is in 5th gear with the parking brake completely up and the crank is still moving counter clockwise??
Get somebody to stand on the brake pedal as well. This is where my GF feels like she's contributed to things.
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Old 12-26-2012, 04:32 PM   #106
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Quote:
Originally Posted by chargalar View Post
Well the thing is I'm driving back to my place on Friday and I really just want to get this done here... whats the overnight shipping cost to 48640?
I wouldn't even be able to ship until Friday.
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Old 12-27-2012, 09:01 AM   #107
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Quote:
Originally Posted by chargalar View Post
So what does it mean when the car is in 5th gear with the parking brake completely up and the crank is still moving counter clockwise??
Your car should be fine. The timing might be off a bit, but you would know it once the car fires up as it would run rough. If all seems well, you should datalog to check on things. If it is running rough, you may want to visit a mechanic just to be safe.
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Old 02-27-2013, 01:35 AM   #108
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I've had my Grimmspeed LWCP for about a month now. I ordered the black one along with the installation tool. The finish and quality of the piece is amazing. The packaging was also top notch. Using the tool made the job so easy and straightforward. It was very easy to notice the difference in weight between the stock pulley and this one. I made sure to pay special attention, on my way to work, to how my car drove before the GS pulley. After installation, I immediately noticed how much easier the car was to upshift and downshift. What I mean by that, is how forgiving the drivetrain seemed to be for making sloppy throttle blips and clutch engagement between gears. Everyone tries to drive smoothly most of the time, but sometimes your tired ass can't pull it off resulting in a lot of driveline shock. This is the #1 thing this pulley helps with. It also feels like it pulls ever-so-slightly faster in the lower gears, but it's hard to tell with the butt dyno. Overall I couldn't be happier with my purchase and the top notch customer service that Grimmspeed provides.
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Old 03-01-2013, 12:17 PM   #109
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Thanks everyone for all the feedback.
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Old 03-08-2013, 07:34 PM   #110
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Thought i would just say i happy with mine. I have had it on my 05 wrx for over a year. No issues. When i installed it i did a act lightweight flywheel as well. The engine was out of the car. I have had no issues with the flywheel and pully combo. I am running a speed density tune after i installed both the pully and flywheel. I would recommend through pully if your looking for one.
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Old 04-08-2013, 10:54 AM   #111
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Just installed the crank pulley. It seems to be flying straight as an arrow, but I have some steering wheel vibration now ONLY when idling at 900 rpm. Is this normal? Do I have the alternator belt too tight / loose? It seems in the ball park of the AC stretch belt.

I do have whiteline steering rack inserts, group N engine mounts & kartboy pitch stop motor mount, but those have all been on the car for months and did not result in this kind of vibration.

Last edited by blehhh; 04-08-2013 at 11:11 AM.
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Old 05-01-2013, 01:40 AM   #112
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I have a 2012 WRX Sedan with a Turbo XS TBE, Cobb intake/access port and finally put this thing on. From the butt dyno didn't feel a whole lot, I really notice it when I am driving at low rpm and low speed and the car doesn't bog down. I lived on a huge hill and had to be in 2nd or 3rd to make it up without the car struggling and after this I could do it in 3rd or 4th. Fit perfect, hardest thing was getting the belts back on. Pretties up the engine bay too. +1 for GrimmSpeed
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Old 05-02-2013, 10:34 AM   #113
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Just to confirm, a tune isn't necessary after this, correct?
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Old 05-02-2013, 10:51 AM   #114
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Quote:
Originally Posted by CookKnowsBest View Post
I have a 2012 WRX Sedan with a Turbo XS TBE, Cobb intake/access port and finally put this thing on. From the butt dyno didn't feel a whole lot, I really notice it when I am driving at low rpm and low speed and the car doesn't bog down. I lived on a huge hill and had to be in 2nd or 3rd to make it up without the car struggling and after this I could do it in 3rd or 4th. Fit perfect, hardest thing was getting the belts back on. Pretties up the engine bay too. +1 for GrimmSpeed
Thanks for the reply! glad we could make your commute a little bit easier

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Just to confirm, a tune isn't necessary after this, correct?
No tune is needed! Install and drive away happy

Mike
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Old 05-19-2013, 11:59 AM   #115
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So no one has steering wheel vibration after the install? I think my belt is tensioned properly and the pulley is not wobbling, but my steering wheel vibrates a lot now, especially at idle.
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Old 05-19-2013, 02:48 PM   #116
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So no one has steering wheel vibration after the install? I think my belt is tensioned properly and the pulley is not wobbling, but my steering wheel vibrates a lot now, especially at idle.
No issues with my car regardless of what I am doing. You either have a bearing issue with onr of your pulleys or something is up with your power steering pump. What method did you use to remove your pulley? I am on a phone so I cannot review if you answered this in an earlier post. This might lead you to your issue.
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Old 05-19-2013, 06:10 PM   #117
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No issues with my car regardless of what I am doing. You either have a bearing issue with onr of your pulleys or something is up with your power steering pump. What method did you use to remove your pulley? I am on a phone so I cannot review if you answered this in an earlier post. This might lead you to your issue.
I have engine mounts & steering rack bushings, but it didn't vibrate like this before. It's not bad above 1000 rpm, but at the ~800rpm idle, it vibrates a lot. And a little while cruising on the highway.

We used the tool and everything for the removal, and it flies straight as an arrow, I think the weight of the stock pulley was shielding some of the vibrations or something.
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Old 05-19-2013, 08:59 PM   #118
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Hmmm... Good question then. You have taken a lot of play out of your driveline and steering but the OEM pulley isn't a harmonic damper so it should have caused an issue with the new pulley...emphasis on shouldn't...
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Old 05-19-2013, 10:45 PM   #119
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Hmmm... Good question then. You have taken a lot of play out of your driveline and steering but the OEM pulley isn't a harmonic damper so it should have caused an issue with the new pulley...emphasis on shouldn't...
I might try playing around with the tension in the belt then. There is also a little feedback in the clutch pedal now when I start the car too. It's hard to tell if either has anything to do with flashing the car or not. I changed too many variables at once lol.
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Old 05-20-2013, 10:33 AM   #120
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Vibrations should not be present, the car should run and drive very smooth!

Please make sure the pulley is installed correctly and that the key is flush and engaged.

Mike
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Old 05-20-2013, 10:52 AM   #121
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Quote:
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Vibrations should not be present, the car should run and drive very smooth!

Please make sure the pulley is installed correctly and that the key is flush and engaged.

Mike
I might try taking it off and re-installing it. I'm pretty positive it's installed perfectly, spinning perfectly, machined & balanced perfectly, etc but still vibration now. Not trying to reflect negatively on the pulley, just wondering if anyone else experienced anything like that. I think it's other factors playing in, because I went from stock to stage III in one day, all bushings done months prior, but the steering wheel shake was definitely new lol.
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Old 05-20-2013, 11:53 AM   #122
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It may not be a bad idea but if it looks like it's spinning smooth it should be good. The ones we've seen installed wrong are pretty wobbly!

Mike
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Old 08-01-2013, 10:16 AM   #123
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I will be purchasing this part in the near future, but here are my questions...

1. Why is it that this light weight pulley can cause a "ghost" CEL on some cars but on others it does not? You would either think it would or wouldnt.

2. I realize that "no tune" is required for this, however....if this part allows the engine to rev faster, therefore the car can get into boost faster (engine revving faster puts exhaust gases through the turbo faster...ie the turbo is spooling faster and etting into boost faster) wouldnt "tuning" be somewhat required for this part? Thats what I am confused about.

I am already at stg2 with my wrx as well.

Thanks
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Old 08-01-2013, 10:25 AM   #124
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Originally Posted by shamrock 05 View Post
I will be purchasing this part in the near future, but here are my questions...

1. Why is it that this light weight pulley can cause a "ghost" CEL on some cars but on others it does not? You would either think it would or wouldnt.

2. I realize that "no tune" is required for this, however....if this part allows the engine to rev faster, therefore the car can get into boost faster (engine revving faster puts exhaust gases through the turbo faster...ie the turbo is spooling faster and etting into boost faster) wouldnt "tuning" be somewhat required for this part? Thats what I am confused about.

I am already at stg2 with my wrx as well.

Thanks
You're just removing rotating mass from the equation, similar to lightweight wheels. Driving downhill is the same difference. Nothing changes relative to the RPM, you're just moving through the RPM range quicker.

Either way, that affect is negligible. The real difference is that when you go to downshift, you can mash the pedal once and it revs up easier for your downshift. Also, if you are off by a tiny bit, it's more forgiving when you do ask the engine to speed up or slow down in a mismatched shift.

Starting out is a tiny bit trickier though because you have less rotating mass, like a LW flywheel but no where near as noticeable.
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Old 08-02-2013, 07:07 AM   #125
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One other thing, what is the Tq specs on the nut that holds on the crank pulley nut?

Thanks
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