Pulleys galore

4.0 V6 NA
My task for today was researching pulleys as I hate the way my rusted out alternator and crankshaft pulleys look
All my research is based on some dated threads so I chose to make a new one.
I landed on these light weight pulleys from NST (Non stop tuning)
https://www.nonstoptuning.co/store/p90/2005-2015ToyotaFJTacomaXRunnerPulleyKitNST06150K.html
For 268 I can get the crank, H2O pump and alternator “lightweight” pulleys.
Now supposedly these increase throttle response and horsepower
(because they are red )

While most reviews say good things about them and so do the dyno runs on other forums,TW seems to be convinced the lack of harmonic damping will cause catastrophic engine failure. Though those who install it never seem to have that experience .

Can someone explain to me why I should or shouldn’t install a lightweight crank pulley (Not OD or UD, just lightweight). If I’m not mistaken our 1GR-FE crankshaft are internally balanced so I was finding it hard to believe there would be a world of problems.

And for the Nay-sayers, is there any upgrade to the crank pulleys? I know @TacoTuesday1 had a thread about Fluidampr pulleys a while ago but I couldn’t find any information on it last that and assumed they never made one for our trucks.

In comparison OEM for just the crank pulley is 315. And doesn’t come in red.
https://www.toyotapartsdeal.com/oem/toyota~pulley~crankshaft~13470-0p010.html

 

You can get away with using them on the water pump and alternator but I would reconsider using one on the crank. That rubber layer in the OEM pulley helps absorb crank vibrations, and removing it can cause extra wear on the crank, bearings, or accessories over time. Some engines (like inline-4s and straight-6s) are more sensitive to this than V6s or V8s. It’s probably fine for a weekend car or something low mileage, but I wouldn’t run one on a high-mile daily unless it’s a damped. Not a terrible mod, just very setup specific and a no-go for Tacoma's IMO. I understand they're not cheap but it's well worth the money considering the risk and potential for the damage a non-damped pully can cause. Buy once, cry once.

 

Who is the OEM manufacturer? I just find it hard to believe the cheap piece of plastic is the best damper for my engine. I’m not arguing solid metal would be better, it wouldn’t, I see what you’re saying. But has no one developed anything better?

 

The OEM crank pulley is metal and very solid, with just a thin layer of rubber for damping, like we talked about. I believe AISIN makes the OEM Toyota water pump and possibly some of the pulleys, though I can’t say that with 100% certainty. Honestly, the reason it’s tough to find anything truly equivalent or "better" is because the OEM design already works perfectly for 99.9% of setups. Keep in mind, the Tacoma platform isn’t one that people usually modify in this way, so most companies aren’t going to invest in R&D for something that has such a small market.

https://www.rockauto.com/en/catalog/toyota,2008,tacoma,4.0l+v6,1441488,engine,harmonic+balancer,5512 Check these out, obviously not OEM but would be better than solid aluminum.

 

No no, I’m aware it’s not made of plastic. Plastic doesn't rust…
The thin piece of plastic I referred to is the damper.
99% of Tacoma owners can get in their truck without step bars, 99% of people don’t need LED light bars, yet I still see them everywhere.
I’m just wondering why more people aren’t interested in advances in technology like Fluidampr. I’m not confused as to why people don’t ACTUALLY develop it for us. No one here seems to want one because good enough is in fact, good enough.
Also I can’t find an AISIN harmonic damper.

 

Tons of info here. Some of the boosted folks run them and I haven't heard of anything necessarily bad happening but YMMV.

https://www.tacomaworld.com/threads...ght-billet-crank-pulley-crank-dampner.615779/

Edit: whoops, this is for the SC pulley but Im pretty sure guys run this along with the aluminum crank pulley.