basch32 Posted April 14, 2014 Share Posted April 14, 2014 Hi guys, Firstly apologies if this question ahs been asked prior, did a search and couldnt find anything definitive I am looking at buying a supra tt 6-speed however the right one is hard to find. However a nice one has come up but is an auto tt to 6-speed conversion. I was just wondering is there any technical drawbacks e.g. chassis rigidity, rust (from needing the bore out the transmission tunnel to fit) to this over a genuine 6-speed from the factory and would it impact the resale value of the car. THis is both a technical and a sale question so hope this si the right forum. Thanks, Baz Quote Link to comment Share on other sites More sharing options...
ripped_fear Posted April 14, 2014 Share Posted April 14, 2014 Resale would be impacted definitely, also another draw back would be that you do not know the history of the box, miles abuse etc. Other things to consider would be did they change the diff to a manual one, not something that's needed but changes the ratio's. Also check out how good the fabrication work is on the transmission tunnel, as they would have had to weld a new one in. Possible hazard of rust if a bodge job. Quote Link to comment Share on other sites More sharing options...
basch32 Posted April 14, 2014 Author Share Posted April 14, 2014 Ah ok thanks, what would the going price for a supra tt auto to 6-speed conversion be for a 95 model? Whats the best way to check the transmission tunnel (sorry f this is a stupid question) In the end am I better holding out for a true 6-speed? Quote Link to comment Share on other sites More sharing options...
ripped_fear Posted April 14, 2014 Share Posted April 14, 2014 (edited) Going price is hard to judge without a detailed spec of the car but I would personally want a min of 1k off the going rate of a comparable oem 6 speed. But a conversion wouldn't put me off, infact its probably the route I will take on my own car. In my eyes if it wasn't a factory fitted thing, it would never be worth the same, even if its actually more expensive to retro fit. Get under the car to check the welds, maybe even pop the centre dash panel off from the gear surround a lift the carpet and take a peak, it only pops off. A big question would be where the conversion took place too, if it was a specialist eg, SRD then that would give me some peace of mind. The question of you being better to wait or not depends entirely on the car and price imo. Post a link to the car.. Edited April 14, 2014 by ripped_fear (see edit history) Quote Link to comment Share on other sites More sharing options...
basch32 Posted April 14, 2014 Author Share Posted April 14, 2014 Thanks for the reply, I was just curious of what to expect of the market value when I am buying and I suppose if I ever decided to sell. Also if there was any reason the conversion might cause any structural/technical issues. I will try and get a link to the supra up shortly currently on the phone and its being a bit of a pita opening the site:/ Its 9k with 70k miles and is pretty much standard engine wise bar bpu upgrades and even these are minor in comparison to what some people do. Quote Link to comment Share on other sites More sharing options...
drift_bear Posted April 14, 2014 Share Posted April 14, 2014 My auto - 6 speed was carried out by SRD and the box was from a 60K NA6 that had been well cared for and hardly driven hard Quote Link to comment Share on other sites More sharing options...
Abz Posted April 14, 2014 Share Posted April 14, 2014 It will hardly make a difference price wise in comparison to a genuine one. The work can be done without being a botch if done properly as you can fit the 6 speed tunnel. A few have been done recently & you'd hardly be able to tell the difference. With the 6 speed boxes costing cost £3k+ it helps hold the value regardless. Quote Link to comment Share on other sites More sharing options...
JamieP Posted April 14, 2014 Share Posted April 14, 2014 I doubt it would make any difference to the price tbh, v160/v161 are bullet proof pretty much, if the gear change is smoothish you will be fine. Quote Link to comment Share on other sites More sharing options...
skippyboyo1 Posted April 14, 2014 Share Posted April 14, 2014 You will be doing the world a massive favour killing the auto! 6 speed all the way! Enjoy Quote Link to comment Share on other sites More sharing options...
basch32 Posted April 14, 2014 Author Share Posted April 14, 2014 You will be doing the world a massive favour killing the auto! 6 speed all the way! Enjoy Haha now autos have their place i.e. the drag strip and to be fair the supra auto is actually rather decent. But ya 6-sped is where its at from a driver point of view far more engaging Quote Link to comment Share on other sites More sharing options...
TheTurtleshead Posted April 14, 2014 Share Posted April 14, 2014 NA to TT Will make a price difference... 6 Speed not so much. Best mod you can do to a Supra IMO! If you were looking to buy and perform a conversion, get a new transmission cover from Toyota (They're not dear). A pet hate of mine is when the transmission cover hasn't been changed properly. I.e. It's been bodged in with silicone, rivets, a wing and a prayer, or it's been cut out with an angle grinder as opposed to having the spot welds drilled. Obviously also check that this has been performed properly if you do buy that car. Quote Link to comment Share on other sites More sharing options...
basch32 Posted April 14, 2014 Author Share Posted April 14, 2014 Again guys really appreciate all the replies, the car looks very much how I want it to. Not knowing a massive amount about welding etc. if anyone has any pics of a job that is well done for reference or images of the areas of the car that I should be looking at specifically that would be great but if not thats cool too I know its a bit of an ask... Well fingers crossed when I see it all will be as it should. Quote Link to comment Share on other sites More sharing options...
Guest Roger NE Posted April 14, 2014 Share Posted April 14, 2014 How strange that they didn't make the Mk4 transmission tunnel to fit ANY of the different gearboxes ! ANY Mk3 Supra can be fitted with a W58, R154 or A340E Automatic box. Quote Link to comment Share on other sites More sharing options...
David P Posted April 14, 2014 Share Posted April 14, 2014 The different transmission panel is only as thick as a biscuit tin lid, it's only purpose is to fit the different interior trim and to stop the draught from emptying the ashtray. Quote Link to comment Share on other sites More sharing options...
Guest Roger NE Posted April 15, 2014 Share Posted April 15, 2014 If that's the case, ie if it's not structural, then all this talk about making sure it's been fitted really well seems a bit silly ! Quote Link to comment Share on other sites More sharing options...
TheTurtleshead Posted April 15, 2014 Share Posted April 15, 2014 If that's the case, ie if it's not structural, then all this talk about making sure it's been fitted really well seems a bit silly ! Oh no I agree. I love it when people do a shit job! In fact... I hope the traders read this and start putting them in with chewing gum! I jest... If something is worth doing. It's worth doing right...Why do a half-arsed job? Quote Link to comment Share on other sites More sharing options...
Abz Posted April 15, 2014 Share Posted April 15, 2014 If that's the case, ie if it's not structural, then all this talk about making sure it's been fitted really well seems a bit silly ! As James says we have seen people on this forum mess up something so simple with a right botch job! Think James isn't far off right from saying they used chewing gum Quote Link to comment Share on other sites More sharing options...
TheTurtleshead Posted April 15, 2014 Share Posted April 15, 2014 As James says we have seen people on this forum mess up something so simple with a right botch job! Think James isn't far off right from saying they used chewing gum I believe it was a new Chewig-Welder.. and they employed Stevie Wonder to Weld it in. Thinking of Homer's Car. Quote Link to comment Share on other sites More sharing options...
David P Posted April 15, 2014 Share Posted April 15, 2014 (edited) It's removal that needs the care, centre dot with a long or short punch or a short or long hammer (some are awkward to get at) and drill out the spot welds using a short/stubby drill and then cleave the bits remaining with a small sharp cold chisel. That'll get it out as wean as a clissle and the new one will click into the orifice like it was made for the job. Turtles auto tunnel panel came out clean enough to be used for an MT6 to 4AT conversion. http://www.mkivsupra.net/vbb/showthread.php?296229-James-s-DJG-Turbo-Project&highlight=Auto+manual+tunnel+conversion For refixing, the perfect tool is a spot welder, if not then a few tacks around the edge with a MIG welder and then a good slobbering with underseal around the edges. However, if you're doing this in the field, a Tigerseal sandwich filling would make just as neat a job if not more so and be stronger, however, it would be more difficult to get back out again. Edited April 15, 2014 by David P (see edit history) Quote Link to comment Share on other sites More sharing options...
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