Lightweight crank pulley - BRZ install
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- เผยแพร่เมื่อ 6 เม.ย. 2017
- Reducing rotating mass for your engine is a simple way to increase throttle response. I am taking another stab at installing my Perrin lightweight crank pulley in my 2017 BRZ. This howto video will cover exactly what you need to know, in order to get the Perrin pulley installed on your BRZ, FRS, or Toyota 86! I've added a Grimmspeed alternative down below which will produce the same results. Note: Lightweight pulley's are not recommended with a high performance header like the ACE A-350 that I installed later.
Grimmspeed lightweight pulley : amzn.to/3jmyESJ
Perrin lightweight crank pulley : amzn.to/2iKsRr2
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Very helpful Justin, thank you so much!
Great instructions! Subscribed
Hey thanks! Glad I could help.
Nice video, I''ll be doing this soon myself on my car along with the belt change. Just wondering if you have done the other pulleys and if you have a video on those?
On this car, I did not do the other pulleys.
That's a nice car I just pick up mine last week ;)
Congrats!
To get max benefit need light weight alternator and water pump pulley along with the crank
When I remove my pulley, the pin and whole inner piece came off too. I placed it back while trying to align it and it’s stuck.
Thanks for taking the time to make this video, you are always so helpful, clear, and concise :).
Can you tell a difference with the new pulley?
It is not that noticeable. I always end up installing this after I have installed other mods, so it is harder to tell.
On my 2013, I noticed immediate improvement in throttle response. Shifting was noticeably smoother for me. Conversely, when I returned my car to stock (for a lease return), the throttle response was noticeably more sluggish. If/when I end up with another BRZ, I would not hesitate to do this mod again. I did have the Kartboy, which is slightly lighter, but also makes a slight faux-supercharger whine up to about 3k rpm (different design, but not a real issue).
daiheadjai Yea it is worth it. I'm sure I would notice it more if I had not upgraded other parts at the same time.
daiheadjai who install your pulley ?
@@TheBTRGarage ive got a question thats maybe stupid because im noob: why dont u change all of those 8 pulleys instead of only 1?
Thank you
What would happen if I didn’t turn the bolt more than 45 degrees?
I love you channel, wish you still had the toybaru. After running this pulley for some time, did you run into any issues with this part on? I have been reading on vibrations that our motors have or i should say all motors have. I looked at a harmonic damper pulley, but i have a perrin pulley at my disposal and wanted to see if it caused any issues before i buy the harmonic damper pulley. I rather ask someone who runs one and ses what they have to say, then a salesman.
Thanks for watching! Wish I still had my BRZ as well ☹ I never had any problems with it on my FR-S or my BRZ, but that is just my experience. I did end up putting the stock pulley back on as that is what was recommended for my ACE header.
I know the stock pully helps with vibration in the engine, so putting an aftermarket one basically doesn't balance anymore. Will this be bad for the engine in the long run?
I have gruven parts pulley's on my car, if the pulley is well made this is taken into consideration, I have 4 lightweight pulleys tho and the difference is huge, feels like 10hp to be honest.
Get Fluidampr's pulley instead
@@BrazenRain I have been looking into the fluidampr, can you give more reasons as to why better?
I have some questions.
There's less metal and probably cost around the same to manufacture this(In terms of overall car prices)
If this is an ideal application, why aren't manufacturers using this in their production sport cars? or are there any specific reasons to why?
Since cast iron rust and is heavier it should be a no brainer for them to use it right?
And finally, if the throttle response is lighter, wouldn't the rpm drop faster as well?
Yes throttle response is better and drops in rpm as well. Who knows why car manufacturers prefer one design over an other. It could be due cost but overall performance is improved.
So much harder to install these on ej20 -255
damn that goatee is magnificent
Do more tutorials on the brz👍🏽 nice detailed vids btw
More are coming, stay tuned :)
I disassembled a factory pulley once, it’s a dual weight pulley with two concentric parts that are connected by a rubber seat. It helps dampening the vibration from the crankshaft. I don’t think it’s a good idea to replace this with a aftermarket part.
I agree. Just buy a new OEM crank pulley when its around 80k miles and no need to worry about them failing.
Other than less weight is there any average or down side to having it
It makes the throttle a tiny bit more responsive. Since this video was done, I found data that some headers make more power with the stock pulley, so I really don't recommend this one much anymore.
Why are lightweight pulleys not recommended when used with a high performance header? Is it due to increased power? Under hood temps?
The testing data shows the OEM pulley produces more power in that case, not exactly sure why.
What’s the purpose of this?
When you put the intake on (as I want the same one) had you done a OFT or EcuTek tune? Lots of other videos people say an OFT doesn't work well with an aftermarket intake, and I am just starting my build on my FR-S
An OFT or EcuTek both work fine with an intake. I have used both, with intakes, and there is no problem. You want to get it tuned for the upgrades you have ideally.
BTR Justin would you need a tune when simply upgrading the pulley?
Nope. Just be aware that pulley's are not recommended if you're going to get a header eventually.
BTR Justin sounds good, I have a 2005 Impreza 2.5rs currently that I just got and am thinking about making this the first mod on it but I’m debating whether it’s A. Worth it and B. Should get the Cobb or Perrin lightweight pulley. Thanks for the help
BTR Justin I was just about to order a pulley but already have headers, why is this an issue?
How do you know when the belt is properly tightened back?
You just release the tensioner and that is all you need to to do. The tensioner will keep the proper tension on the belt.
@@TheBTRGarage Appreciated, you recommend this for a daily? When I say daily I mean maybe 10,000km a year.
It would be fine for a DD, basically you will feel a little better throttle response. I don't use the lightweight pulley anymore because the OEM or fluidmpr is recommended for my engine modifications.
@@TheBTRGarage what are your mods I'm trying to determine if the pulleys are a good idea for my model plans
Rumors are that the lightweight pulley is a factor for spun bearings. Have you heard anything on that?
Never actually heard that. It is a pretty standard upgrade, had it both my FRS and now the BRZ with 0 issues.
For someone who understands a decent amount about cars, but I'm certainly no Internet Mechanic, is this just for weight reduction by a couple pounds, or are there other performance benefits?
Vancomycin Bison it makes you a forum God
Vancomycin Bison reduces rotational mass, meaning more power to the wheels
By how much in general? 5hp? 10hp? 3,000hp?
lets just say that when u reduce the weight that means u to spend less energy to spin the pulley, just increase in throttle response and more whp, without actually increasing the horsepower. its the same reason why ppl do weight reduction.
As mentioned, it is mostly for reducing rotational mass.
Notice any big difference was it worth the investment?
raiderfan20082003 not a big difference no. It makes a small improvement in throttle response and maybe low-end power, that's about it.
That bolt that holds the crank pulley is a real biotch.
This is a true statement :)
Do u daily drive the car ?
Firesfast 2131 I do, unless there is a lot of snow, which is rare.
😊
Los tuner dicen que eso es mala idea
Y do you have to be gentle with the key pin will it fall out or break?
You just don't want to lose it, that's all. You can't break it.
inb4 you'll break your engine because the crank pulley is a harmonic dampener (it isn't on a subaru boxer) and you will explode and die. Also press the button on your handbrake because you'll wear out the ratchet. Don't use socket wrenches ever the ratchet will just break. Don't ride a bicycle with a freehub because the ratchet will just break. Don't use your brakes you'll just wear your brake pads out
In all seriousness it seems best to reduce rotational mass at the wheels, tires, (clutch?) and flywheel because they are the most massive but replacing the crank pulley is relatively easy
lol good one::D
1 dislike for sitting on the bumper?
Haha, deserved :) I should know better, being a detailer and all...
anyways nice videos!
Toca toca ,ciando se te rompa le hechas la culpa a Subaru
You should watch a video on how to use a torque wrench. You only need one click. You over torqued your bolts.
Thanks for the tip!