Lebsteif Posted April 24, 2008 Share Posted April 24, 2008 Just some pics of my broken gearbox, it will be replaced with a R154 gearbox. Back on the road soon http://tweakers.net/ext/f/wOwAH8KHZfgKRVVUJjzMcesh/full.jpg http://tweakers.net/ext/f/Z2by2CpO7EgNZQZnq1lqpc1l/full.jpg http://tweakers.net/ext/f/3QGScARnXHzJqIpw6bdKvCZX/full.jpg http://tweakers.net/ext/f/Z70n9pQ5DuGtpZx9iBt5DUBi/full.jpg Quote Link to comment Share on other sites More sharing options...
dibbleyuk Posted April 24, 2008 Share Posted April 24, 2008 That looks a mess what caused that mate? Quote Link to comment Share on other sites More sharing options...
Konrad Posted April 24, 2008 Share Posted April 24, 2008 i guess single turbo + 5 speed manual + spirited driving caused this Quote Link to comment Share on other sites More sharing options...
Lebsteif Posted April 24, 2008 Author Share Posted April 24, 2008 ^^ That yes and too many wild ponies Quote Link to comment Share on other sites More sharing options...
steve spedd Posted April 24, 2008 Share Posted April 24, 2008 How many exactly mate? what were you running and the box was coping? Quote Link to comment Share on other sites More sharing options...
Ryan.G Posted April 24, 2008 Share Posted April 24, 2008 I would estimate around 380bhp-400bhp Quote Link to comment Share on other sites More sharing options...
miko_supra Posted April 24, 2008 Share Posted April 24, 2008 interested to hear what you were running through it Quote Link to comment Share on other sites More sharing options...
CarlT67 Posted April 24, 2008 Share Posted April 24, 2008 I would estimate around 380bhp-400bhp Thats at the wheels I guess....? Quote Link to comment Share on other sites More sharing options...
ShamelessTT Posted April 24, 2008 Share Posted April 24, 2008 Impressive pics, not seen inside one before Quote Link to comment Share on other sites More sharing options...
Lebsteif Posted April 24, 2008 Author Share Posted April 24, 2008 I would estimate around 380bhp-400bhp Comming back to you for more when the other box is installed. Got the 525cc injectors now as well Quote Link to comment Share on other sites More sharing options...
steve spedd Posted April 24, 2008 Share Posted April 24, 2008 Comming back to you for more when the other box is installed. Got the 525cc injectors now as well i thought it would take a little more then that.... what clutch you got it it? and what setup did you have? thanks steve oh and was that at the wheels? Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted April 24, 2008 Share Posted April 24, 2008 Looks like 3 rd gear? That's the usual failure as you probably can't get full torque in 1st or 2nd due to lack of traction. 3rd or 4th are the typical excess torque gear failures in a 5 speed box/ Quote Link to comment Share on other sites More sharing options...
Lee P Posted April 24, 2008 Share Posted April 24, 2008 Thats fooked. Shouldnt have any probs with the R154, they are very strong. Quote Link to comment Share on other sites More sharing options...
bromy Posted April 24, 2008 Share Posted April 24, 2008 Just out of interest how much bar are you running? Quote Link to comment Share on other sites More sharing options...
CarlT67 Posted April 25, 2008 Share Posted April 25, 2008 Is the r154 a complete replacement box or is it new internals for the exsisting casing, also if you dont mind me asking is it an expensive bit of kit...? Quote Link to comment Share on other sites More sharing options...
Lebsteif Posted April 25, 2008 Author Share Posted April 25, 2008 Quote walhalla i thought it would take a little more then that.... what clutch you got it it? and what setup did you have? thanks steve oh and was that at the wheels? I was using the TRD clutch, a bit weak for my setup but did the job fine till the box broke. Looks like 3 rd gear? That's the usual failure as you probably can't get full torque in 1st or 2nd due to lack of traction. 3rd or 4th are the typical excess torque gear failures in a 5 speed box/ Could be, i do not have any knowledge about the gears. But it's correct that the third and fourth gear are the weakest. Just out of interest how much bar are you running? 0,5 Bar with stock injectors, my plan is to run ~0.7 bar (525cc) on the stock headgasket, this is possible due the adjustment of the iginition timing (i'm using a Link ECU). In the future i will change the headgasket to a stock TT gasket, this is thinner than most aftermarket ones. Is the r154 a complete replacement box or is it new internals for the exsisting casing, also if you dont mind me asking is it an expensive bit of kit...? The R154 is bigger and can't be fitted in the casing of the W58. I'm going to make a full tutorial so it can be used for future reference. Estimated costs will be ~1300 pounds. Quote Link to comment Share on other sites More sharing options...
tDR Posted April 25, 2008 Share Posted April 25, 2008 Sorry to see this Leb - that's pretty mangled. The R154 isn't quite a Getrag in terms of strength but is rated to cope with around 600lb/ft or so. I did say a while back when turbofit were churning out NA-T's on W58's that there would be failures - sadly it looks like this is indeed the case. The W58 just isn't a strong enough box. Cheers, Brian. Quote Link to comment Share on other sites More sharing options...
garethr Posted April 25, 2008 Share Posted April 25, 2008 The Aussies seem to like using the W5* boxes with their V8s. The Dellow catalogue says that "this box is used in most of our V8 swaps", and lists conversions for: Holden V8 – 253 – 308 Chev V8 Ford V8 289, 302, 351 Chrysler Hemi V8 I'd have thought that a big V8's torque would have given the 'box a harder time, but perhaps not. Quote Link to comment Share on other sites More sharing options...
miko_supra Posted April 25, 2008 Share Posted April 25, 2008 Is the r154 a complete replacement box or is it new internals for the exsisting casing, also if you dont mind me asking is it an expensive bit of kit...? i remember reading about doing the conversion a while back, the shift assy and first half of the prop shaft need swapping over, and i seem to remember something about the bell housing needing to be modified Quote Link to comment Share on other sites More sharing options...
miko_supra Posted April 25, 2008 Share Posted April 25, 2008 The R154 is bigger and can't be fitted in the casing of the W58. I'm going to make a full tutorial so it can be used for future reference. Estimated costs will be ~1300 pounds. a write up would be good, as i may well need to do this in the future:) Quote Link to comment Share on other sites More sharing options...
bromy Posted April 25, 2008 Share Posted April 25, 2008 I am very surprised it has gone at only 0.5bar, my Precision T61 has been running at 0.8bar for over two years as a daily driver. Would be good if you could manage a detailed write up on the conversion though Quote Link to comment Share on other sites More sharing options...
Lebsteif Posted April 27, 2008 Author Share Posted April 27, 2008 I was very suprised as well that this happend already. Perhaps i did had the best gearbox. Sorry to see this Leb - that's pretty mangled. The R154 isn't quite a Getrag in terms of strength but is rated to cope with around 600lb/ft or so. I did say a while back when turbofit were churning out NA-T's on W58's that there would be failures - sadly it looks like this is indeed the case. The W58 just isn't a strong enough box. Cheers, Brian. The Getrag gearbox would be the best in terms of strength but it does come with a price and it exceeds more than i need. The R154 isn;t as strong but will do the job fine since i'm only looking for ~ 500bhp. That's more than enough for me Quote Link to comment Share on other sites More sharing options...
Lebsteif Posted April 27, 2008 Author Share Posted April 27, 2008 i remember reading about doing the conversion a while back, the shift assy and first half of the prop shaft need swapping over, and i seem to remember something about the bell housing needing to be modified The swapping of the first half of the driveshaft is only needed when the conversion is taking place in a Lexus, the supra doesn;t need that. Quote Link to comment Share on other sites More sharing options...
miko_supra Posted June 22, 2008 Share Posted June 22, 2008 Any updates on this? Quote Link to comment Share on other sites More sharing options...
miko_supra Posted June 27, 2008 Share Posted June 27, 2008 bumpskie? Quote Link to comment Share on other sites More sharing options...
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