Unorthodox pulley install help

[streetAssasin96]

I dont have a torque wrench and it says i have to torque the crank pully to like 161ft/lbs... if i just use a impact to tighten the bolt will that be ok? i mean is it really that important to tighten it to a certain degree?

[streetAssasin96]

we are doing an install on 06CivSi's civic btw

[CHR!S]

its better to be safe than sorry, id definately recommend using a torque wrench

[CivSi06]

yeah i didnt even wanna attempt it without a torque wrench...

[gsrboi80]

Torque it for sure. I have a torque wrench if needed. Im off on Tuesday we could do the Job at my house in the Poconos

[XLR8 GS-R]

So what did u end up doing?? It has a key on the crtankshaft so we know it wont spin off or out of alighnment. If you had a torque wrench then use it but if not just tighten it untill your blue in the face

[ScoobyNubieToo!]

I could be wrong but I think you can borrow a torque wrench at AutoZone for free.

[lude98SH]

idk if you have read about the problems you may face with using a lightweight crank pulley. It can be very dangerous i would read up some if you havent already. Its up to you if you want to run it because its a debatable topic.

[ScoobyNubieToo!]

I've had a Perrin lightweight pulley, intake, TBE, BOV on 100% vent and CELs or other problems..... but this is on a WRX.....I dunno about HONDAs

[streetAssasin96]

ive heard about the crank pulley having to be harmonically balanced, but the pulleys are installed and there are no signs of problems

[charliemopps24]

Just get a 2 feet piece of pipe and slip it over the wrench and put 81 pounds of force on it give or take.

[james_ls]

Terrible idea...

Have fun doin the new block work...

[Loserkidwac]

Yes there has been reported bearing failure due to the light weight crank pulley...but there is a huge debate over I'm not saying its good or bad but I just go with the fact that the bottom end has to be balanced and taking weight off one end of the crank in my opinion would make it unbalanced...same for light weight fly wheels...but thats my opinion, not facts i just stay clear from them, not need and there are better ways to spend cash...

Also thats one of the few bolts on a honda motor i light to make sure it tourqued properly, I had one come off on the highway before...

[highmilehatch]

I'd recommend to keep your stock pulley. How much power do you think your going to gain?

[charliemopps24]

I read somewhere that each pound saved from the crank pulley will get you 2% horsepower at the flywheel. Now take into account that the stock steel one is like 8 pounds and the aftermarket aluminum one is like 3 pounds. That's 10% more power at the flywheel. I'm actually thinking of doing this mod at the same time that i do my A/C delete to get a more noticeable difference.

[highmilehatch]

Still not worth it. I'd rather not jeopardize reliability. If you want to make power go turbo. But to each their own.

[charliemopps24]

My engine has 244,000 miles, longevity is not the biggest of my concerns. I'm not saying that i'm gonna beat and mistreat my motor, but i know that a replacement longblock is less than 400 dollars.

[highmilehatch]

The mileage of your current engine is not a good enough excuse to justify running a part that could potentially cause damage to your bottom end. If your engine had 10 miles on it, would you still use it? Honda engineers put a dampner there for a reason. But again, it's your car and to each their own.:wink: