DamMR2T
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Gen3 turbo crankshaft pulley/ harmonic balancer options
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.
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just_ace
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Re: Gen3 turbo crankshaft pulley/ harmonic balancer options
2016/09/22 00:55:17
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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.
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P E T E
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Re: Gen3 turbo crankshaft pulley/ harmonic balancer options
2016/09/22 09:50:43
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I'm using my Gen 2 harmonic balancer on my Gen 3 :)
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DamMR2T
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Re: Gen3 turbo crankshaft pulley/ harmonic balancer options
2016/09/22 21:13:44
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Steve_A
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Re: Gen3 turbo crankshaft pulley/ harmonic balancer options
2016/09/23 21:08:54
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Got a GFB lightweight pulley if your interested?
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Guest
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Re: Gen3 turbo crankshaft pulley/ harmonic balancer options
2016/09/23 21:19:28
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I didnt know gfb made a mr2 pulley... is it matched in terms of size off another vehicle like subaru or nissan....
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kameleon
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Re: Gen3 turbo crankshaft pulley/ harmonic balancer options
2016/09/24 07:25:12
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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.
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Steve_A
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Re: Gen3 turbo crankshaft pulley/ harmonic balancer options
2016/09/24 07:27:47
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It's an MR2 specific part but it has been discontinued so you won't find it at retailers anymore!
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DamMR2T
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Re: Gen3 turbo crankshaft pulley/ harmonic balancer options
2016/09/24 12:28:54
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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
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DamMR2T
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Re: Gen3 turbo crankshaft pulley/ harmonic balancer options
2017/05/17 17:43:42
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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?
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Mrskylighter
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Re: Gen3 turbo crankshaft pulley/ harmonic balancer options
2017/05/17 18:18:08
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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.
post edited by Mrskylighter - 2017/05/17 18:26:15
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Steve_A
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Re: Gen3 turbo crankshaft pulley/ harmonic balancer options
2017/05/17 21:48:46
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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?
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dasic1
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Re: Gen3 turbo crankshaft pulley/ harmonic balancer options
2017/05/17 22:24:15
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I just used a OEM 3s one on mine
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EssDub
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Re: Gen3 turbo crankshaft pulley/ harmonic balancer options
2017/05/18 16:58:35
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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. :)
Currently... '03 Spyder 6MT - T28 inc... ------------------------------ Previously... '00 FD3S '94 SW20 Bathurst R '88 AW11 '92 SW20 G-Limited '90 SW20 G '91 SW20 Mongrel '94 G Limited T-Bar '92 GT-S Turbo
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