natony Posted June 25, 2014 Share Posted June 25, 2014 I'm currently trying to weigh up the pro's and con's for certain gearboxes I'm planning on running somewhere between 400-500hp, i know a v160/v161 would be the obvious choice but from recent research i don't think i could part with that amount of cash for an unknown gearbox that at best is agricultural. I've found a place i can import a newer style r154 for £1800 would i be better off with that ? anyone had any experience with the R154 Lastly the r154 is £1800 plus £300 for a new clutch and then a manual diff £250, so that £2350....nearly 6 speed money advice please Quote Link to comment Share on other sites More sharing options...
David P Posted June 25, 2014 Share Posted June 25, 2014 (edited) A Hybrid transmission would happily cope with that for around £400 and flappy paddles could be added for another £400. http://www.mkivsupra.net/vbb/group.php?groupid=57 Edited June 26, 2014 by David P (see edit history) Quote Link to comment Share on other sites More sharing options...
pedrosixfour Posted June 25, 2014 Share Posted June 25, 2014 I bought my "Supra spec" R154 for £1100 Tony. By the time I put a new clutch, flywheel & slave cylinder with it was costing about £1500. After I sold all my W58 components the R154 swap cost me about £800. Bottom line is it need not run into thousands. Quote Link to comment Share on other sites More sharing options...
bignum Posted June 25, 2014 Share Posted June 25, 2014 Tbh i much prefer the 6 speed to the 154 in terms of gear selection. Quote Link to comment Share on other sites More sharing options...
Swampy442 Posted June 25, 2014 Share Posted June 25, 2014 What about BMW or Nissan 6 speeds? Getting a more common swap now. Quote Link to comment Share on other sites More sharing options...
David P Posted June 25, 2014 Share Posted June 25, 2014 Linking a likewise thread. http://www.mkivsupra.net/vbb/showthread.php?309661-350z-gearbox Quote Link to comment Share on other sites More sharing options...
Guest FullAttack Posted June 26, 2014 Share Posted June 26, 2014 I know the R154 very well.. Iv used them in my own cars and done tons of manual conversions with them.. They are very much agricultural, everyone that goes from an r154 to a v160 comments on how much nicer the v160 shifts.. After 450hp they become a bit 'hit & miss', they'll take the power for x amount of time, then it'll give up.. There is a handful of weak points, most have an uprated part available from places like driftmotion/marlin crawler. Iv actually got a couple of spare JZ to R154 Bellhousings if you do go this route and need one. There is 2 types of shifter, mk3 supra has a short shifter, and the JZX's use a remote shifter because its a longer car.. I make remote shifters to suit the extra length required in the JZA chassis if you get a mk3 box;) The 350 boxes are ok, but don't know how reliable they'll be at 500-600hp... Now, the good option, this is what iv upgraded too for my own car as I want something I can rely on in competition... A BMW E46 M3 6spd Getrag.. I use an ABCclutch conversion kit, comes with flywheel, Tilton twin plate clutch, etc.. It usually comes in around £2500 to put pretty much ALL the parts together, so it's very competitively priced. Pm me if you'd like anymore details on this:) Quote Link to comment Share on other sites More sharing options...
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