raddys Posted October 1, 2018 Share Posted October 1, 2018 As above, I have a bpu TT auto and I'm considering a newer toy, however everything I look at hasn't floated my boat like my supra does. So I am considering bringing the supra up to date as the current hot hatches can now give me a good run for my money Now I'd love to go single and would be looking for around a very responsive 600hp with full boost coming on early as poss Now the only problem is i have with that is that the stock auto box with 650hp ish is abit laggy to drive and I feel ruins the driving experience, so I'm thinking about going DCT with a single set up, so my question is who has a DCT box and how does it compare to the modern offerings? How does it drive etc? I've heard mixed reviews but not from actual owners, also how much did it cost? I would be looking at for the DCT conversion from a stock BPU TT AUTO? Many thanks, Grant Quote Link to comment Share on other sites More sharing options...
Dave_Batch Posted October 1, 2018 Share Posted October 1, 2018 I was massively impressed with the development of these boxes onto supras, like you said, brjnging it into the modern generation! Quite a lot of work involved but when your connecting a early 90's car to a 2010 gearbox you cant expect it to be a straight forward swap like a r154 or similar... Be interesting to hear some real user reviews Quote Link to comment Share on other sites More sharing options...
AC93 Posted October 1, 2018 Share Posted October 1, 2018 I believe the drive in/out cost from stock is around £12-14k once you have bought the gearbox and diff, as the auto ratio is 3.7 and needs coming down to around 3.1 iirc I also have a TT auto and would like a modern auto gearbox (as good as the Supra box is more gears and faster changes are needed). But have you looked at a mid-size fast spooling single with a 3200 hi stall? SRD do built auto boxes at a decent price. Quote Link to comment Share on other sites More sharing options...
ellis Posted October 1, 2018 Share Posted October 1, 2018 I can tell you what it's like in the M3 but not in the Supra. However, if it drives in the Supra like it does in the M3 then I'd have had it in my Supra no worries! Quote Link to comment Share on other sites More sharing options...
tayr Posted October 1, 2018 Share Posted October 1, 2018 i have one in my m3 which is currently for sale Quote Link to comment Share on other sites More sharing options...
Sheefa Posted October 2, 2018 Share Posted October 2, 2018 It's around £12k yes for DCT setup via Whifbitz. Cheaper if you already have a Syvecs S6 Please list ECU. It's a very large sum of money to be spending if you ask me. SRD are working on the Lexus style box conversion still I believe although not seen any updates for some time. Quote Link to comment Share on other sites More sharing options...
el_bandido Posted October 2, 2018 Share Posted October 2, 2018 The SRD 8 speed will require a Motec unit as well, not a Syvecs. Quote Link to comment Share on other sites More sharing options...
Guest Budz86 Posted October 2, 2018 Share Posted October 2, 2018 I was under the impression the 8 speed SRD fitted to an ISF is controlled by a syvecs and not a motec. As far as I know it's all in and working now. Deffo worth a discussion with them though as now with dyno capabilities in house it's a genuinely drive in/drive out service Quote Link to comment Share on other sites More sharing options...
el_bandido Posted October 2, 2018 Share Posted October 2, 2018 Call Lee yourself; they aren't using a Syvecs for the ISF, they are using a MOTEC. Quote Link to comment Share on other sites More sharing options...
scott.wild Posted October 2, 2018 Share Posted October 2, 2018 I have the DCT gearbox in my Supra and it is absolutely amazing, zero loss of boost from a standstill all the way up. Perfect gear changes, throttle blipping on down shifts. The 11 different drive logic settings are great and suit whatever mood you might be in and drive by wire with different map setting. I have done around 10,000 miles since the conversion, used daily and wouldn't change it for anything. Quote Link to comment Share on other sites More sharing options...
phobos Posted October 4, 2018 Share Posted October 4, 2018 Another one in the queue here... I'm fully rebuilding my Supra and going for DCT. Quote Link to comment Share on other sites More sharing options...
raddys Posted October 8, 2018 Author Share Posted October 8, 2018 Cheers for the replys guys, I love the sound of it but a 12k conversion is a hell of a lot of money for just a gearbox.. hmmm, I have some thinking to do lol Quote Link to comment Share on other sites More sharing options...
Ric Posted October 9, 2018 Share Posted October 9, 2018 Cheers for the replys guys, I love the sound of it but a 12k conversion is a hell of a lot of money for just a gearbox.. hmmm, I have some thinking to do lol Theres only really 1 option at the moment. Whifbitz or SRD (which is not ready) i believe. The only issue with the Whifbitz one is that you need to modify your car's transmission tunnel. A lot of people don't want to cut at their floors but it's the only way. SRD doesn't need the floor modifying but theres not been much info around lately Quote Link to comment Share on other sites More sharing options...
el_bandido Posted October 9, 2018 Share Posted October 9, 2018 There are other options, I'm in touch with someone about a ZF8hp swap, using a controller that is already working and has been used to turn 6 speed Aston Martin autos into 8 speeds. Quote Link to comment Share on other sites More sharing options...
AC93 Posted October 9, 2018 Share Posted October 9, 2018 ZF8hp is whats supposed to be used in the new Supra right? Quote Link to comment Share on other sites More sharing options...
el_bandido Posted October 9, 2018 Share Posted October 9, 2018 (edited) The ZF8hp is used in just about everything at the moment. Just to give you some idea as to why the 8 speed is a vastly better choice than the 7 speed DCT, here is the speed to gear spread on a few options: M3 DCT with Whifbitz custom diff vs NA6 diff and ZF8hp M3 DCT with Whifbitz custom diff vs TT6 diff and ZF8hp M3 DCT with Whifbitz custom diff vs NA6 diff and IS-F gearbox More aggressive through the gears and a higher top speed/lower cruising RPM. Not only will it be faster, it won't cost you so much petrol on a motorway run. Edited October 9, 2018 by el_bandido (see edit history) Quote Link to comment Share on other sites More sharing options...
AC93 Posted October 9, 2018 Share Posted October 9, 2018 Good numbers but NA6 diffs arent easy to get hold of tho! A02 would probably work nicely too Quote Link to comment Share on other sites More sharing options...
Style Posted October 9, 2018 Share Posted October 9, 2018 Good numbers but NA6 diffs arent easy to get hold of tho! A02 would probably work nicely too NA6 diffs are just A02B's Quote Link to comment Share on other sites More sharing options...
AC93 Posted October 9, 2018 Share Posted October 9, 2018 The NA6/A03 has a ratio of 3.26 vs the 3.76 A02 Quote Link to comment Share on other sites More sharing options...
el_bandido Posted October 9, 2018 Share Posted October 9, 2018 Good numbers but NA6 diffs arent easy to get hold of tho! A02 would probably work nicely too Easier to come by than an ISF diff. Quote Link to comment Share on other sites More sharing options...
Style Posted October 9, 2018 Share Posted October 9, 2018 The NA6/A03 has a ratio of 3.26 vs the 3.76 A02 A03 was the facelift TT6 diffs I believe. NA6's are definitely A02B's...I've got my VIN plate in front of me I've seen a good few sold this year for 350-450 bucks Quote Link to comment Share on other sites More sharing options...
el_bandido Posted October 9, 2018 Share Posted October 9, 2018 It wouldn't surprise me if the ring and pinion from other Toyota group cars would fit. Quote Link to comment Share on other sites More sharing options...
phobos Posted October 10, 2018 Share Posted October 10, 2018 There are other options, I'm in touch with someone about a ZF8hp swap, using a controller that is already working and has been used to turn 6 speed Aston Martin autos into 8 speeds. What's the donor car of that specific 8HP? Any more infos on the swap available? ZF8hp is whats supposed to be used in the new Supra right? yup Quote Link to comment Share on other sites More sharing options...
el_bandido Posted October 10, 2018 Share Posted October 10, 2018 What's the donor car of that specific 8HP? Any more infos on the swap available? yup Jag I believe. I'll share the details once I've got a bit further down the rabbit hole. It's an 8HP75, so stronger than the one in the new Supra. Quote Link to comment Share on other sites More sharing options...
phobos Posted October 11, 2018 Share Posted October 11, 2018 I believe the Jag (F-Type) has the 8HP70 but you're right, it's probably stronger than the one in the new Supra, which is supposedly an 8HP50. Interesting project. I talked to the guys from ZF Race Engineering about such a conversion a while back. Since the transmission is used in motorsports applications I assumed there would be some sort of aftermarket version. But that's not the case. It's all based on OEM ECUs so you have to reverse-engineer the CAN bus communication. Quote Link to comment Share on other sites More sharing options...
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