Gen3 turbo crankshaft pulley/ harmonic balancer options

Re: Gen3 turbo crankshaft pulley/ harmonic balancer options (EssDub)

Thu, 18 May 2017 16:58:35 GMT

Aftermarket crankshaft pulleys are not a good idea. Have had several engines over the years that cracked cranks due to harmonics destroying them.

Just use a stock one and leave it at that. :)

Re: Gen3 turbo crankshaft pulley/ harmonic balancer options (dasic1)

Wed, 17 May 2017 22:24:15 GMT

I just used a OEM 3s one on mine

Re: Gen3 turbo crankshaft pulley/ harmonic balancer options (Steve_A)

Wed, 17 May 2017 21:48:46 GMT

Sure an aftermarket damper isn't cheap but it will help your engine live a long and healthy life! I'm using a Ross on my build and talking with my tuner he recommends a damper on all his builds whether its Ross, Ati or Fluidampr etc.

In his experience the engines with them lasted longer then those without. Why not spend a few hundred extra now when you've gone to the trouble of building a 5sgte?

Re: Gen3 turbo crankshaft pulley/ harmonic balancer options (Mrskylighter)

Wed, 17 May 2017 18:18:08 GMT

Can you not just use a used SW20 3sgte crank pulley? gen2 or 3.

When I built a tough gen2 motor many years ago I used a 5sfe crank in a 3sgte block using the original gen 2 3S pulley. I used the alternator in the factory location along with A/C compressor. No issues at all and is still pumping out 320KW ATW today after apparently 40+ thousand KMs.

Re: Gen3 turbo crankshaft pulley/ harmonic balancer options (DamMR2T)

Wed, 17 May 2017 17:43:42 GMT

I'm still trying to sort out my best (not expensive) option here.
I don't know why I didn't think of it before, but I have built a 5SGTE (block and crank) so why not use a 5S harmonic balancer. Perhaps I didn't consider this earlier because of the belt differences for the ancillaries, but I'm going to see if I can match up the ancillaries to the block/brackets and maybe change wheels on the ancillaries.

What has everyone else used when building a 5SGTE?

Re: Gen3 turbo crankshaft pulley/ harmonic balancer options (DamMR2T)

Sat, 24 Sep 2016 12:28:54 GMT

Yes I had considered the GFB one but noticed it didn't have any dampner/harmonic balancing per their site. Then found they're no longer made anyway, and didn't expect anyone to have one. The GFB, I believe is also underdrive pulley, requiring different belts.

It's the same with the Unorthodox too, being an underdrive with no harmonics. I almost bought one of those, to swap with another standard engine, before I did more research.

I can't see any benefit in me going lightweight for double the cost, so it looks like I need to buy a new OEM, unless I can find a used in good condition.

It's always a debate, but this is what can happen:
http://www.imoc.co.uk/forums/viewtopic.php?t=147934

Re: Gen3 turbo crankshaft pulley/ harmonic balancer options (Steve_A)

Sat, 24 Sep 2016 07:27:47 GMT

It's an MR2 specific part but it has been discontinued so you won't find it at retailers anymore!

Re: Gen3 turbo crankshaft pulley/ harmonic balancer options (kameleon)

Sat, 24 Sep 2016 07:25:12 GMT

Use a Harmonic balancer and not a lightweight aluminium pulley that has no form of harmonic balancing. 3S/5S motors harmonics sit right around cruising rpm and are not good for the motor.

Use the Ross in my opinion.

Re: Gen3 turbo crankshaft pulley/ harmonic balancer options (Guest)

Fri, 23 Sep 2016 21:19:28 GMT

I didnt know gfb made a mr2 pulley... is it matched in terms of size off another vehicle like subaru or nissan....

Re: Gen3 turbo crankshaft pulley/ harmonic balancer options (Steve_A)

Fri, 23 Sep 2016 21:08:54 GMT

Got a GFB lightweight pulley if your interested?

Re: Gen3 turbo crankshaft pulley/ harmonic balancer options (DamMR2T)

Thu, 22 Sep 2016 21:13:44 GMT

Well if Gen2 are the same it should be easier to find one.

The Gen2 and Gen3 turbo ones have a different OEM part number, 13407-88381 and 13407-88481 respectively.

I don't know how I missed it before, but there is a Gen3 from Ross Performance, but they too have different part numbers aswell.
https://rossperformanceparts.com/product/toyota-3sgte-beams-st205-metal-jacket-harmonic-damper/
https://rossperformanceparts.com/product/toyota-3sgte-3sge-metal-jacket-harmonic-damper/

But it would seem NA and Turbo ones could be the same?
Are there others besides Ross Performance?

Re: Gen3 turbo crankshaft pulley/ harmonic balancer options (P E T E)

Thu, 22 Sep 2016 09:50:43 GMT

I'm using my Gen 2 harmonic balancer on my Gen 3 :)

Re: Gen3 turbo crankshaft pulley/ harmonic balancer options (just_ace)

Thu, 22 Sep 2016 00:55:17 GMT

Your mixing up the difference between celica and mr2 pulleys. The celicas have the smaller inner and mr2s have the 2 large. Doesnt matter if gen2 or 3.

Gen3 turbo crankshaft pulley/ harmonic balancer options (DamMR2T)

Wed, 21 Sep 2016 21:59:03 GMT

Hi All
I need a new Gen3 turbo crankshaft pulley for a 5SGTE build. I have an OEM but engine builder noticed the rubber had started to crack all the way round and obviously didn't recommend it. They did recommend a Ross Tuning ine， but they are Gen2 only. What other options are out there， and is it really necessary to spend $5-600 on an aftermarket? Do any aftermarket ones have a dampner? Even a new OEM is $2-300. I'm not interested in a Under driven pulley.
BTW the Gen3 has 2 same sized wheels， whereas the Gen2 has the inner wheel smaller.