lionbull Posted October 28, 2012 Report Share Posted October 28, 2012 (edited) can we start these too? apparently they are the same strength as the r154 and can be had for 300 bucks. the gearing seems to be better than the r154 and is very close to an 80's BMW e30 325i gearing. The input shaft is slightly shorter than the r154's too. r150 gearing: 1st: 3.8302nd: 2.0623rd: 1.4364th: 1.0005th: 0.838Reverse: 4.220 R154 Gearing: 1st: 3.2512nd: 1.9553rd: 1.3104th: 1.005th: 0.753Reverse: 3.18 e30 getrag 260 1st 3.83:1 2nd 2.20:1 3rd 1.40:1 4th 1.00:1 5th 0.81:1 R 3.71:1 Edited October 28, 2012 by lionbull Link to comment Share on other sites More sharing options...
Skullzaflare Posted October 28, 2012 Report Share Posted October 28, 2012 Starion (KM132-M-CNL) 3.369:1 2.035:1 1.360:1 1:1 .856:1 why would you want shorter gears than a stock trans? personally i think our first is to short as it isthough it probably is stronger Link to comment Share on other sites More sharing options...
Skullzaflare Posted October 28, 2012 Report Share Posted October 28, 2012 you can also get W58's for 200 or less generally, i know there are a couple that are running in mkII supras holding 550whp daily, and gearing is betterW58 1- 3.2852- 1.8943- 1.2754- 1.0005- 0.783 Link to comment Share on other sites More sharing options...
lionbull Posted October 28, 2012 Author Report Share Posted October 28, 2012 what of the w55?2wd Link to comment Share on other sites More sharing options...
Funky Phil Posted October 28, 2012 Report Share Posted October 28, 2012 i think the w58 would be a good upgrade option. Heefner ran his with no probs. So itd hold up to MOST SQ owners. Plus that taller 5th. Link to comment Share on other sites More sharing options...
Funky Phil Posted October 28, 2012 Report Share Posted October 28, 2012 fyi an AUS shop use to produce W58-G54 bellhousings Link to comment Share on other sites More sharing options...
lionbull Posted October 29, 2012 Author Report Share Posted October 29, 2012 any links to the shop?at this point it is all about options.w58 should be good especially since the lexus is way heavier than our cars,and they are holding the torque the toyota guys are putting down. Link to comment Share on other sites More sharing options...
lionbull Posted October 29, 2012 Author Report Share Posted October 29, 2012 those of you who have broken the stock trans. what broke? Link to comment Share on other sites More sharing options...
Skullzaflare Posted October 29, 2012 Report Share Posted October 29, 2012 (edited) all 5 of mine are from hitting 2nd to hard i lost 2nd gear in this one, but drove homehttp://i15.photobucket.com/albums/a381/skullzaflare/IMG_7199.jpgthis one was hitting 2nd, and cracked the transmission shell from bellhousing to tailshaft, trans also locked uphttp://i15.photobucket.com/albums/a381/skullzaflare/CIMG6541.jpg Edited October 29, 2012 by Skullzaflare Link to comment Share on other sites More sharing options...
Skullzaflare Posted October 29, 2012 Report Share Posted October 29, 2012 also, i know they made adaptors for w58 to narrowblock 4g63 but never found any for g54b Link to comment Share on other sites More sharing options...
Dred_85.5_TSI Posted October 29, 2012 Report Share Posted October 29, 2012 Cough--- RX7 trans ---Cough Link to comment Share on other sites More sharing options...
lionbull Posted October 29, 2012 Author Report Share Posted October 29, 2012 the gears are sheared off. whats to say the same won't happen with the rx-7 tranny?are there any identifiable differences between the two? Link to comment Share on other sites More sharing options...
Dred_85.5_TSI Posted October 29, 2012 Report Share Posted October 29, 2012 http://rotarycarclub.com/rotary_forum/showthread.php?t=15493 Link to comment Share on other sites More sharing options...
lionbull Posted October 29, 2012 Author Report Share Posted October 29, 2012 from the same link "How much power you can run through something is relative to the weight, it plays a huge factor. If you keep the mass around 1300kg total you can run a 700bhp engine behind these transmissions (though long term they will wear out). IF the weight of your car (say loaded with sluts on a Friday night) is much higher and you really give it full power then I say you will break it easy." 1 Link to comment Share on other sites More sharing options...
Dred_85.5_TSI Posted October 29, 2012 Report Share Posted October 29, 2012 (edited) Yeah I saw that, I still think that the Rx7 Turbo II FC/FD 5 speed is stronger than the starion transmission. Besides, if you are serious about performance weight reduction is a given. I know my car is at least 100 lbs lighter than stock and I still have a few things to eliminate. Pretty sure you can break anything if you try hard enough. plus you can use the SQ flywheel/clutch with a Rx7 TOB. And, a higher O/D gear will yield savings in mileage and wear on the engine. Besides I don't plan on making more than 400-425 hp. Edited October 29, 2012 by Dred_85.5_TSI Link to comment Share on other sites More sharing options...
Funky Phil Posted October 29, 2012 Report Share Posted October 29, 2012 castlemaine hotrodsdellows automotive both have done W58 bells. Link to comment Share on other sites More sharing options...
Funky Phil Posted October 29, 2012 Report Share Posted October 29, 2012 fyi, a 300whp weekend drag car, puts more strain on a gearbox than a 550whp DD of the same weight and drivetrain. 2 and 3 have burst for me on 4 different gearboxes. taller gears also dont mean better mpg/ less wear. Too tall will take an engine below its sweet spot and cause it to lug and pull boost at every bit of throttle input. Link to comment Share on other sites More sharing options...
lionbull Posted October 29, 2012 Author Report Share Posted October 29, 2012 Yeah I saw that, I still think that the Rx7 Turbo II FC/FD 5 speed is stronger than the starion transmission. Besides, if you are serious about performance weight reduction is a given. I know my car is at least 100 lbs lighter than stock and I still have a few things to eliminate. Pretty sure you can break anything if you try hard enough. plus you can use the SQ flywheel/clutch with a Rx7 TOB. And, a higher O/D gear will yield savings in mileage and wear on the engine. Besides I don't plan on making more than 400-425 hp. the rotary guys are only able to run this power because the rx-7 is lighter than the starion and has no torque in comparison. I trust the r154 more because the 7m supra have been making 400+ forever and is about 300lbs heavier than us...not to mention they are holding behind 2j power. Link to comment Share on other sites More sharing options...
Dred_85.5_TSI Posted October 29, 2012 Report Share Posted October 29, 2012 ORLY?? They don't break?? What about the trust washer issue??http://www.toymods.org.au/forums/engines-accessories-driveline-sale/68666-broken-r154.htmlhttp://www.supraforums.com/forum/showthread.php?197403-Broken-R154http://www.clublexus.com/forums/performance-and-maintenance/587945-rebuilt-r154-or-buy-another-r154.html Link to comment Share on other sites More sharing options...
lionbull Posted October 29, 2012 Author Report Share Posted October 29, 2012 (edited) ORLY?? They don't break?? What about the trust washer issue??http://www.toymods.o...roken-r154.htmlhttp://www.supraforu...403-Broken-R154http://www.clublexus...other-r154.html Marlin crawler has already solved this.who has solved the km 132/rx-7 tranny issues? Edited October 29, 2012 by lionbull Link to comment Share on other sites More sharing options...
Skullzaflare Posted October 29, 2012 Report Share Posted October 29, 2012 couple things i wanna point out,rx7 weighs a little less than a conquestrxy has 3.90/4.10 gears, we have 3.52 (i think) makes more stress on transmissionwe also make torque below 5000 rpm unlike the rx7 lol Link to comment Share on other sites More sharing options...
lionbull Posted October 29, 2012 Author Report Share Posted October 29, 2012 basically the same thing i said. That swap would be a waste of time, money and resources. Link to comment Share on other sites More sharing options...
Dred_85.5_TSI Posted October 29, 2012 Report Share Posted October 29, 2012 So you are advocating buying a R154 and then turning around and having it rebuilt (or using it as a core on a MC R154)? A MCR154 is ~$1,600 plus ~$500 for the core..... The last link I posted had a MC thrust washer in the trans and it still let go. That and MC only does rebuilds on the R154. They don't offer a rebuild kit. Supra store does http://www.suprastore.com/ulrbukitfsh.html and that goes for $600- $700. Link to comment Share on other sites More sharing options...
lionbull Posted October 29, 2012 Author Report Share Posted October 29, 2012 (edited) not advocating anything yet...but if you are going to play you got to pay right? same way you said about weight reduction right?"Besides, if you are serious about performance weight reduction is a given" is it not a given you spend money on a proper trans/rebuilt swap if you are serious about performance? Edited October 29, 2012 by lionbull Link to comment Share on other sites More sharing options...
Dred_85.5_TSI Posted October 29, 2012 Report Share Posted October 29, 2012 True, and honestly I do agree with you about paying to play.The main reason I brought up the Rx7 trans is that it can be had for a decent price, bolts up with the right bellhousing, and, uses the SQ clutch. If we are looking for options there is no reason to ignore the RX7 on SQs that aren't running huge power, but, want a trans that is proven to hold power and shift properly at higher RPM (the biggest issue I've had with my 88 5-speed). Paying to Play is the biggest reason that I'm still TBI. When I do go MPI I'll spend money and do it right. Link to comment Share on other sites More sharing options...
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