NewZed Posted October 13, 2016 Share Posted October 13, 2016 You're not grokking. Only the 90A is the T5. And it's not a direct swap. Quote Link to comment Share on other sites More sharing options...
3ryce Posted October 13, 2016 Share Posted October 13, 2016 I thought I had read somewhere that I wanted a t5 from 82 or 83 turbo zx. I didn't know there were 2 different kinds. Sigh. I may just not do this swap anymore then. Also thought I read there was just a small modification I needed to do to make it work with my Z. Hmmm Quote Link to comment Share on other sites More sharing options...
3ryce Posted October 13, 2016 Share Posted October 13, 2016 Alright, it's confusing on the t5 topic cause it's all scattered and a places say different things, and the guy who had a post with auto to 4 speed just said to use a 5 speed instead and there was very little mentioned in that post about the t5 Quote Link to comment Share on other sites More sharing options...
NewZed Posted October 13, 2016 Share Posted October 13, 2016 Nobody said that there were two different kinds of ZX T5. The T5 will go in with some extra effort. Small to some people, not so small to to others. For you, maybe the pond. Quote Link to comment Share on other sites More sharing options...
3ryce Posted October 13, 2016 Share Posted October 13, 2016 Ok I got confused by what you had said about 71b and 90a. I need a little more context to that. Quote Link to comment Share on other sites More sharing options...
NewZed Posted October 13, 2016 Share Posted October 13, 2016 The ZX's came with two different 5 speeds. But they also came with different parts to use them in the ZX. If you want a simple 5 speed swap for a 240Z, the 71B 5 speed from any 1977 - 1983 Z or ZX will swap easily and fairly directly. The gear ratios are different though, between early (77-80) and late (80-83) so that should be considered relative to diff ratio. Quote Link to comment Share on other sites More sharing options...
3ryce Posted October 13, 2016 Share Posted October 13, 2016 Hmmm cool I got it a little more now. I assume the 90a is the one that I've read about that has the ratios closer to the 73z 4speed then? Sense it's from a 82 zx turbo is it safe to assume that one is a 71b? Quote Link to comment Share on other sites More sharing options...
NewZed Posted October 13, 2016 Share Posted October 13, 2016 Browse through the MT chapters. There's a table at the end of the chapter that tells which engine was paired with which transmission. The gear ratios are shown also. http://www.nicoclub.com/datsun-service-manuals Quote Link to comment Share on other sites More sharing options...
3ryce Posted October 13, 2016 Share Posted October 13, 2016 Alright I'll check that out. Thanks for clearing things up. Quote Link to comment Share on other sites More sharing options...
NW240Z Posted October 13, 2016 Share Posted October 13, 2016 Here are a couple more pages with good tranny info. If your 260 is an automatic it should have 3.54 gears in the diff. Most 5 speed cars run 3.90. To get the most out of your trans swap you might want to mate it to a different rear ratio diff too. http://www.gracieland.org/cars/techtalk/gearing2.html http://newprotest.org/projects/510/gearRatios.pl Quote Link to comment Share on other sites More sharing options...
3ryce Posted October 13, 2016 Share Posted October 13, 2016 Nw240z are you talking to me? Mine is a 6/73 240z. I'll look at theach links either way. But for now Im only worried about the 4 to 5 speed swap. Quote Link to comment Share on other sites More sharing options...
NewZed Posted October 13, 2016 Share Posted October 13, 2016 If you have the 3.36 ratio R180 in your 240Z you'll want a low 1st gear. You should determine your rear diff ratio, or plan to swap a diff in, to get the full benefits. The wrong combination can be difficult to live with. The 240Z 4 speeds have a very low 1st gear. That might be why the turbo FS5R90A 5 speed was recommended. It has a low 1st gear also. Put a list of ratios together, and parts needed to do the swap. The turbo 5 speed will take more parts and effort, but if you have a 3.36 might be the way to go. Quote Link to comment Share on other sites More sharing options...
NW240Z Posted October 14, 2016 Share Posted October 14, 2016 Nw240z are you talking to me? Mine is a 6/73 240z. Sorry I am up very early for work on the weekdays. 240's and 260's are similar though. Like Zed Head mentioned the rear end (diff) complements the transmission. To get the most from a 5 speed it is a wise choice to match a diff for the driving you want to do. Stock 4 speeds came with 3.36 Stock Automatics came with 3.54 280 and 280ZX 5 speeds had 3.90 there are truck diffs in 4.11 and 4.32 Maxima had a 3.70 but needs some mods to make it bolt up. All can make the power band in different RPM's so it really depends on what you intend to do with the car. I have a 3.54 with my 4 speed and like it for the most part but it still rev's high on the highway. The PO had 4.11 in it for autocross and that was terrible on the highway. 1st gear was pretty much useless. My plan is for an 83 280ZX 5 speed and an 84 Maxima 3.70 R180 diff, I am staying with the L24 too. If I were going for an engine swap I would go another route. I hope the info helps you out. It is not a hard swap just figuring out the gearing for the driving you intend to do makes it a challenge to then find those parts at a decent price. Quote Link to comment Share on other sites More sharing options...
HuD 91gt Posted October 14, 2016 Share Posted October 14, 2016 To make it simple. All naturally aspirated Z's from 1970-1983 have a transmission that will easily swap into your Z with minimal effort. These range from 4 speed (240/260z) to the 5 spd in 280z/ZX. The "quick ratio" transmissions that you read about are I believe from 1980-83. NOW, the T5 transmission is completely different. This comes from 1982/83 ZX Turbos. To use this transmission if my memory serves correct you will require the T5 driveshaft as well. This will have to be shortened to fit into As earlier Z. Quote Link to comment Share on other sites More sharing options...
3ryce Posted October 17, 2016 Share Posted October 17, 2016 I was going to make this a daily for a while before I do a more serious swap. Not sure on that yet as I was thinking of just doing a ls swap or going 1j or 2j down the road. I was planning on staying with the diff it came with till then. Quote Link to comment Share on other sites More sharing options...
ByStickel Posted October 5, 2019 Share Posted October 5, 2019 Bumping an old thread. Early (mid-'71 and older) 240s had a slightly longer 4-speed. After that, the shifter was mounted a little bit farther forward. I know this because my early car has a later 4-speed, and nit's causing problems with the center console. Does the 5 speed's shifter line up with the early shifter location, or the later one? Is there any difference in the length of the driveshaft or shape of the trans x-member? Thanks! Quote Link to comment Share on other sites More sharing options...
DuffyMahoney Posted October 8, 2019 Share Posted October 8, 2019 The 240sx trans fits perfectly in an early 240z. No cutting required. It's almost identical for the shifter hole. You need to buy the new mount. Godzilla race works has a package for it. I have this in my 240z. Quote Link to comment Share on other sites More sharing options...
ByStickel Posted October 8, 2019 Share Posted October 8, 2019 Thanks, Duffy! I'm just down the road in Missoula. Might see you one day, I hope. Quote Link to comment Share on other sites More sharing options...
DuffyMahoney Posted October 10, 2019 Share Posted October 10, 2019 On 10/8/2019 at 1:27 PM, ByStickel said: Thanks, Duffy! I'm just down the road in Missoula. Might see you one day, I hope. Someday! I don't get out much though. Quote Link to comment Share on other sites More sharing options...
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