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Location:
Eastern Suburbs
Registered:
May 2004
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W58
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Fri, 13 August 2004 11:17
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Basically what power output are these boxes capable of holding. And in terms of shift what are they like in comparison to the soarer/supra boxes, and also in comparison overall. Conversion kits can be found for these as well can't they. Also it is basically to suit 380hp at the engine, one of these should be fine shouldn't it, can you recommend anything other than an R154, i'm speciffically after a manual.
Cheers
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Location:
Brisbane
Registered:
May 2002
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Re: W58
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Fri, 13 August 2004 11:57
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A late-model W58 (ie with the steel sandwich plate) will be fine with 380hp. Just don't be brutal with it like I was.
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Registered:
May 2004
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Re: W58
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Fri, 13 August 2004 12:31
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Toyota rate the W58 <300 bhp.
Robert
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Location:
Brisbane
Registered:
May 2002
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Re: W58
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Fri, 13 August 2004 13:10
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Yes, but Toyota had to worry about warranty claims and a general public who don't know how to drive. That doesn't mean the gearbox can't hold a lot more power if treated right.
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Location:
Brisbane
Registered:
June 2003
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Re: W58
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Fri, 13 August 2004 13:11
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you can break a w58 with a 5me if you're stupid enough. 
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Registered:
May 2004
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Re: W58
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Fri, 13 August 2004 13:16
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Indeed. Still, the manufacturer considers them reliable at <300, anything above is 'take your chances'.
They low gear syncros don't seem to last at <300. Above must further shorten their lives.
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Location:
On your mum!
Registered:
May 2002
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Re: W58
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Fri, 13 August 2004 23:28
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Torque vs weight figures will be the factor that governs how much powah that the box can handle. I have had no reliability issues so far with around the 350hp mark.
Imagine the W58 in a 300hp turbo diesel 10 tonne truck.
Incidentally how much power does Toyota rate the Corona 4 speed at? (sorry, I do not recall the gearbox code) I am sure that you will find that plenty of drag rotaries have far exceeded the recommended power rating - repeatedly.
Norbie, that gear box looks fine 
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Location:
Sydney
Registered:
June 2004
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Re: W58
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Fri, 13 August 2004 23:57
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DAMN thats some fine gear workmanship
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Location:
Brisbane
Registered:
November 2002
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Re: W58
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Sat, 14 August 2004 00:59
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The W58 is a good box if treated well. As stated, you can break anything with enough abuse.
I would also take a W58 over an R154 any day... a quarter of the price, and stronger. Even if you do break one, buy another and bolt it up.. you can do this 2 or 3 times and still be ahead financially. Seems a pretty easy decision to me.
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Location:
Brisbane
Registered:
May 2002
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Location:
Perth
Registered:
January 2004
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Re: W58
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Sat, 14 August 2004 08:55
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errr .. w58 stronger than an r154 ? hmmm ...
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Registered:
May 2004
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Re: W58
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Sat, 14 August 2004 09:57
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Have no idea what other Toyota boxes are rated at. My question to them was specific to the W58. Rated is rated not peak.
BTW Norbie, the left pedal is depressed Before engaging the next gear
CB
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Location:
Brisbane
Registered:
November 2002
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Location:
Brisbane
Registered:
November 2002
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Re: W58
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Sat, 14 August 2004 13:37
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BTW Norbie, the left pedal is depressed Before engaging the next gear
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Er... you were the one who just finished saying they were rated to 300hp. Correct me if I'm wrong, but the fact that Norbie's Supra has more than 300hp at the wheels means that the box is seeing more than 300hp.
I think Norbie is aware of the need to depress the clutch pedal, the old man has been driving long enough! 
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Registered:
June 2003
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Re: W58
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Sat, 14 August 2004 22:30
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Just to re-enforce what a lot of people have already said...
The conversion in my car was done approx 5 years ago with a 7MGTE and a regular w58. The gearbox hasn't been touched since then, and is running perfectly. It was getting a little notchy going from first to second, but since the gearbox oil was changed yesterday, it feels like a new gearbox. I'm putting just shy of 200rwkw through it if that helps.
-J-
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