rob.sherer Posted April 16, 2015 Share Posted April 16, 2015 I want to swap my auto box to a 6 speed gear box. As i go through gearboxes like its no ones business and its getting a bit frustrating! i know the v160/ v161 are the best gearbox's to go for with the Supra but they are a fair bit out of my budget at the moment. And i know you can pick up a Nissan s15 gear box for around £850. i was wondering if anyone has had any experience doing this and if its possible? Was also wondering if anyone knows what kind of power figures these boxes can handle and if they can take also the torque. Also will the gear ratios be a problem? Or does anyone know of any other substitute to the V160 gearbox that can be put in the Supra and take a considerable amount of power. Thanks guys! [GRIN][/GRIN] Quote Link to comment Share on other sites More sharing options...
Hitbox Junkie Posted April 16, 2015 Share Posted April 16, 2015 Bmw diesel 6speed gearbox has been used before and was running over 1000bhp with ot of torque too. But you need to have a few things custom made to get the boxes to fit. Above would.be the same for a s15 box. in the states there using 350z boxes too. Quote Link to comment Share on other sites More sharing options...
rob.sherer Posted April 16, 2015 Author Share Posted April 16, 2015 Cheers. would the gear ratios be alright as its a diesel? how much work would be needed for the custom work? anyone you can recommend i could talk to about it? Quote Link to comment Share on other sites More sharing options...
j_jza80 Posted April 16, 2015 Share Posted April 16, 2015 The s15 box is cheap because it is crap. It is the same one used in the IS200, and they are notoriously weak. Even the W58 would be a better option, and at least that bolts on. Quote Link to comment Share on other sites More sharing options...
rob.sherer Posted April 16, 2015 Author Share Posted April 16, 2015 (edited) ah okay yeah just been browsing the interweb and they can only hold about 300bhp. how much would the w58 handle? and how much for the full conversion kit? wouldn't the r154 be a better box? Edited April 16, 2015 by rob.sherer (see edit history) Quote Link to comment Share on other sites More sharing options...
j_jza80 Posted April 16, 2015 Share Posted April 16, 2015 The W58 is known to handle stock power fine, and many people use it with BPU too - though this seems to have very mixed results from what I've seen. Overall, it is better going to the stock 6 speed IMO. And cost of doing this swap will be added to the value of the car, which won't necessarily be the case with other gearboxes. Plus all the parts are available off the shelf. With a custom gearbox swap, many custom parts will be required. Quote Link to comment Share on other sites More sharing options...
Nodalmighty Posted April 16, 2015 Share Posted April 16, 2015 There is a Tremec TR6060 / T56 kit but you are looking at 4k with a new box but that's all brand new parts, billet flywheel and twin plate clutch and annular release bearing. Quote Link to comment Share on other sites More sharing options...
j_jza80 Posted April 16, 2015 Share Posted April 16, 2015 Link? It's a good gearbox, probably similar strength to the Getrag V160/161. The Mustang 'Terminator' Cobra uses this box, and it has similar tuning potential as the Supra. Quote Link to comment Share on other sites More sharing options...
Nodalmighty Posted April 16, 2015 Share Posted April 16, 2015 (edited) http://www.rodshop.com.au/index.php/bellhouings/toyota-1jz-2jz/toyota-1jz-and-2jz-to-t56.html If a T56 fits a TR6060 should too (I've asked the question) Edited April 16, 2015 by Nodalmighty (see edit history) Quote Link to comment Share on other sites More sharing options...
rob.sherer Posted April 16, 2015 Author Share Posted April 16, 2015 Thanks for the link will have a read up on it What gearbox will be needed for this kit? Cheers Quote Link to comment Share on other sites More sharing options...
T2 MSW Posted April 16, 2015 Share Posted April 16, 2015 As others have said avoid the S15 box, it can be done on a supra as one of my mates on FB has done it. But its forever breaking. He's broke the clutch fork, selector shaft multiple times & countless syncs Quote Link to comment Share on other sites More sharing options...
rob.sherer Posted April 16, 2015 Author Share Posted April 16, 2015 Yeah im going to stay clear of the s15 box lol just want to make it a manual and be able to handle the power figures of around 650-700bhp until i can afford to do a v160 conversion Quote Link to comment Share on other sites More sharing options...
Nodalmighty Posted April 16, 2015 Share Posted April 16, 2015 (edited) Tremec T-56 or (hopefully) a Tremec TR6060. A T-56 Magnum has a different input shaft size and spline count I doubt that will work. A T-56 is like v160 strength with R154 feel TR6060 has even more strength and a much nice shift feel, plus you can get all sorts of ratios. It's a double overdrive box with 4th being 1:1 He also does a plate to convert to a toyota auto bell housing so you can fit a T-56 to a uz as well as a jz. it about £200 but you have to sort your own flywheel and clutch et al. Roger Smith can help you with this for the uz engines as he has a custom flywheel and clutch for it (as well as his own adapter for the R154 and Tremec TKO 600). Edited April 16, 2015 by Nodalmighty (see edit history) Quote Link to comment Share on other sites More sharing options...
Sukhy Posted April 16, 2015 Share Posted April 16, 2015 IIRC from my SXOC days the S15 gearbox is pretty weak as others have said. Quote Link to comment Share on other sites More sharing options...
GTR Fever Posted April 16, 2015 Share Posted April 16, 2015 S15 box is rubbish. Even in my previous car (S15 Silvia Spec-R) I broke at least 4 of them and I was only pushing 310whp. The Z33 (350Z) gearbox however is different, that can take some serious abuse from what I've heard and experienced. R154 is a really good option but if you do alot of clutch dump launches, don't expect it to last too long. Quote Link to comment Share on other sites More sharing options...
rob.sherer Posted April 16, 2015 Author Share Posted April 16, 2015 yeah i am very interested in going for an R154 gearbox but would need a whole kit and i have heard they are hard to come by as they were originally used for soarers and people had to do some custom work to fit the supra? Quote Link to comment Share on other sites More sharing options...
natony Posted April 16, 2015 Share Posted April 16, 2015 Your going to have to do 'custom' work no matter what auto to manual swap you do but if you can't afford a v160/161 then the R154 is the best option. Quote Link to comment Share on other sites More sharing options...
rob.sherer Posted April 16, 2015 Author Share Posted April 16, 2015 yeah the R154 is what im after. and yeah i know some custom work will be needed but i have heard that the R154 is from a soarer? so a little more custom work may be needed? Quote Link to comment Share on other sites More sharing options...
natony Posted April 16, 2015 Share Posted April 16, 2015 The supra and the soarer use the same floor pan so no, problem is that soarer R154's are hard to find and most use mk3 supra R154's which are shorter and will need a shifter extension fabricating. Prices on mk3 R154's are constantly climbing and i found it was cheaper to import a soarer R154 from the states Quote Link to comment Share on other sites More sharing options...
Chris Bailey Posted April 16, 2015 Share Posted April 16, 2015 If you like the auto why dont you think about buying a built auto? Something like Boostlogic or SRD box. It will be slightly cheaper than going 6spd and will save you the hassle of trying to find a clutch thats suits your driving style. Quote Link to comment Share on other sites More sharing options...
parasight Posted April 16, 2015 Share Posted April 16, 2015 There's a T56 with super low miles on eBay right now. http://www.ebay.co.uk/itm/T56-Aston-Martin-Vantage-Gearbox-7800-miles-/281656493515?pt=LH_DefaultDomain_3&hash=item41940905cb Get this and one of those Australian adapters and you're golden. Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted April 17, 2015 Share Posted April 17, 2015 Now, does that REALLY look like a 7900 mile transmission to you? 2 very dodgy undisputed negative feedbacks, too. How do you get the speed sensor signals from that box? Quote Link to comment Share on other sites More sharing options...
rob.sherer Posted April 17, 2015 Author Share Posted April 17, 2015 that gearbox will fit the supra with an adapter i can get from Australia? Quote Link to comment Share on other sites More sharing options...
parasight Posted April 17, 2015 Share Posted April 17, 2015 Now, does that REALLY look like a 7900 mile transmission to you? 2 very dodgy undisputed negative feedbacks, too. How do you get the speed sensor signals from that box? Fair enough. Didn't look at that because I wasn't buying it. I've always wondered about the speed signal, though. What's the workaround that people use with the BMW boxes? I assume the R154 has a generic Toyota sensor and output. Quote Link to comment Share on other sites More sharing options...
parasight Posted April 17, 2015 Share Posted April 17, 2015 that gearbox will fit the supra with an adapter i can get from Australia? Theoretically, yes. But then cup ->slip + slip-> lip. Quote Link to comment Share on other sites More sharing options...
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