spider2123 Posted January 25, 2012 Share Posted January 25, 2012 How much torque can this gearbox take? I going to use the box for the v8 conversion. Standard the engine makes 264hp and 260 lbft , i would only like to take it to 300 hp- is the box strong and durable enough ? Quote Link to comment Share on other sites More sharing options...
welshbuddy Posted January 25, 2012 Share Posted January 25, 2012 The clutch would go before the gearbox?? Quote Link to comment Share on other sites More sharing options...
abtin90 Posted January 25, 2012 Share Posted January 25, 2012 The box should hold the v8 torque fine though you'll need an updated clutch. I believe ugp used a w58 with his v8. Quote Link to comment Share on other sites More sharing options...
stevie_b Posted January 25, 2012 Share Posted January 25, 2012 Anecdotal evidence suggest the W58 is OK at roughly stock TT power output if you don't launch it hard, but not much more. I don't know about the torque: that's important because it's probably excessive torque that kills most gearboxes and not excessive power. Quote Link to comment Share on other sites More sharing options...
stevie_b Posted January 25, 2012 Share Posted January 25, 2012 PS I'm no expert on this so please don't take my word for it. Quote Link to comment Share on other sites More sharing options...
Noz Posted January 25, 2012 Share Posted January 25, 2012 (edited) I have seen many w58's handle 350bhp & 350ft lb without problems. If your going to use the soarer v8, I always thought that was 280bhp stock NA. Parry is currently running about 425bhp through his TT lump on his w58 box and has yet to have any issues. A good condition box should handle it without any problem. If you have problems with your box before the conversion, then it may not make a difference it may still fail. A box can fail through abuse and poor service combined with constant drag racing with slick tyres. Jekyl ran his w58 on 500bhp for a little while without any issues, though 3rd gear eventually failed. Edited January 25, 2012 by Noz (see edit history) Quote Link to comment Share on other sites More sharing options...
spider2123 Posted January 25, 2012 Author Share Posted January 25, 2012 If parry is running 425hp it should be fine, the box I'm buying has 70k up it, may end up stripping it and renewing some parts just to give myself less hassle in the long run. Quote Link to comment Share on other sites More sharing options...
Noz Posted January 25, 2012 Share Posted January 25, 2012 Wouldn't bother doing that. it's like buying a new engine to replace one thats not broke. Replacing internal gearbox components isn't worth the hassle if the components haven't failed, and aren't being uprated. Wait for it to fail. Unless you already have a gearbox problem of course. If it current drives and feels fine, then replacing components is money down the drain. You don't know if the gearbox will fail, so why swap bits Save your money for a decent clutch and lightweight flywheel. Quote Link to comment Share on other sites More sharing options...
spider2123 Posted January 25, 2012 Author Share Posted January 25, 2012 Good advice cheers mate Quote Link to comment Share on other sites More sharing options...
garethr Posted January 25, 2012 Share Posted January 25, 2012 (edited) I'd hazard a guess that most manual 1UZs (certainly those in Australian Soarers ) use the W58. IIRC, early Soarer V8s are c. 255bhp, later ones are a little more, around 260, and the VVTi engines are 290ish. It's academic though, because you are unlikely to find anything other than the early version, and you probably want an early early version (pre '93?) because the rods are stronger. Edited January 25, 2012 by garethr (see edit history) Quote Link to comment Share on other sites More sharing options...
Noz Posted January 25, 2012 Share Posted January 25, 2012 I also read the pre-vvti engines are stronger, and anything the 3uz can do, the 1uz can do just as well. Quote Link to comment Share on other sites More sharing options...
spider2123 Posted January 25, 2012 Author Share Posted January 25, 2012 I must be lucky cause I removed the engine from a G reg soarer, the engine doesn't have an electronic throttle on top of the inlet like alot of others I've seen. Thinking if I tune it to around 300bhp ish it would cope easy. Quote Link to comment Share on other sites More sharing options...
Noz Posted January 25, 2012 Share Posted January 25, 2012 My engine pushed a ropey 373bhp, and I've thrashed it and had no problems. Though I don't slam from gear to gear. Hard pulls when in gear, the transition should be done with a `bit` of consideration as the box isn't the strongest. Quote Link to comment Share on other sites More sharing options...
little num Posted January 25, 2012 Share Posted January 25, 2012 Ive broken 3 w58's and push just over 400hp but do drive mine hard, problem if they normally strip the inputshaft and layshaft and from what ive read its not down to worn bearing just pure power. Take a read of this site there is alot of interesting reads all about the W58 box. http://www.toymods.org.au/forums/tech-conversions/26430-w58-version-comparisons.html Quote Link to comment Share on other sites More sharing options...
SPG Posted January 25, 2012 Share Posted January 25, 2012 Is there no way of replacing the Input and Layshaft with something made of a more durable material? Quote Link to comment Share on other sites More sharing options...
spider2123 Posted January 25, 2012 Author Share Posted January 25, 2012 I think I might stay with the auto till I have got the money for the V160. Need it running for the summer, next winters project. Quote Link to comment Share on other sites More sharing options...
Neil-NA Posted January 25, 2012 Share Posted January 25, 2012 Do you guys think the w58 would last on the drag strip with drag rubber but staying NA? Quote Link to comment Share on other sites More sharing options...
Supra Gaz Posted January 25, 2012 Share Posted January 25, 2012 Do you guys think the w58 would last on the drag strip with drag rubber but staying NA? Yup. Should be fine dude Quote Link to comment Share on other sites More sharing options...
Neil-NA Posted January 25, 2012 Share Posted January 25, 2012 Yup. Should be fine dude I believe that to be a coded message, should read 'of course it will be fine Neil, if it blows I will buy you a new box' Quote Link to comment Share on other sites More sharing options...
spider2123 Posted January 25, 2012 Author Share Posted January 25, 2012 I believe that to be a coded message, should read 'of course it will be fine Neil, if it blows I will buy you a new box' Lol Quote Link to comment Share on other sites More sharing options...
Supra Gaz Posted January 28, 2012 Share Posted January 28, 2012 I believe that to be a coded message, should read 'of course it will be fine Neil, if it blows I will buy you a new box' I'm signing nothing! It 'should' be ok. I don't know what your box has been through though.... Just to be safe so I am not liable, it may blow up though. Quote Link to comment Share on other sites More sharing options...
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