pauly_adams Posted September 10, 2012 Share Posted September 10, 2012 hey all, does anyone have any idea on how much power the factory 3 speed from a 280zx can take, im just about to get the last of my turbo parts this week and my auto is in awsome condition and i realy dont want to kill it Quote Link to comment Share on other sites More sharing options...
Patch Posted September 10, 2012 Share Posted September 10, 2012 I have a 260 motor with a 240k auto hooked up to a nissan patrol G60 gearbox driving the 4x4 transfer case on a 4x4 earth mover, crane, forklift beast creation I built years ago, Machine lifts 2 ton and would weigh that. I have destroyed one complete front diff, which is my rear stare drive, broken about 8 axles and broken drive shafts removing tree stumps and digging, wrecked the motor now but still have the same auto in it after about 7 years of hard work. So you could say they are strong. Auto's are cheap for these as every body wants a manual, I have a spare 280c box sitting here. Quote Link to comment Share on other sites More sharing options...
pauly_adams Posted September 10, 2012 Author Share Posted September 10, 2012 that sounds promising, im just about to turbo the poor thing and was not sure if it could handle the power Quote Link to comment Share on other sites More sharing options...
nizm0zed Posted September 11, 2012 Share Posted September 11, 2012 I can't speak to how strong they are, I wouldn't know. But, the same applies to any auto box Keep the fluid and filter clean, serviced regularly and make sure the transmission can dissipate the heat. Fit a good quality cooler. Quote Link to comment Share on other sites More sharing options...
neRok Posted September 11, 2012 Share Posted September 11, 2012 Same gearbox was also fitted to MQ Patrols, and the 4spd is used in VLs etc. A shift kit would help it, someone was offering them on here. Quote Link to comment Share on other sites More sharing options...
Scoota G Posted September 11, 2012 Share Posted September 11, 2012 Quoted as being unbreakable. RB30X does the shift kits for them and they work very well. 1st to 2nd is a big size 12 kick in the pants. Quote Link to comment Share on other sites More sharing options...
pauly_adams Posted September 11, 2012 Author Share Posted September 11, 2012 ive already got onto rb30x lol, and a oil cooler will be added. only thing left is engine management, haltech e6x or vl loom dizzy and ecu with greddy piggy back ecu which actully controls everthing Quote Link to comment Share on other sites More sharing options...
Scoota G Posted September 11, 2012 Share Posted September 11, 2012 Ever thought of fitting a hi-stall? Quote Link to comment Share on other sites More sharing options...
peter mc Posted September 11, 2012 Share Posted September 11, 2012 i have a very worked over one with big converter and all the race parts with big sump from kees , i ran 9.90 and 139 so i think there pretty strong , i spent 5k on this one , if any one wants it its for sale for $1500 .. Quote Link to comment Share on other sites More sharing options...
pauly_adams Posted September 11, 2012 Author Share Posted September 11, 2012 if i hadnt already done mine i would be all over this like a fat kid on a cup cake, mine now has HD clutch packs, bands etc all brand new as i was going to use it to tow, i will be looking into a new torque convertor as im sure the facotry wont last long. its not a power hungry car but it will have a couple of hundred poneys and a bit more torque. the only concern i have is the crap design of the n42 head, it is far from ideal but it also has just been rebuilt with new valves seats etc so im keen to use it for the moment. as for my setup it will be sard 550cc top feed injectors which are 2 months old holset hx35w turbo charger f54 turbo manifold from the states f54 block with dished pistons, N42 head both of which where rebuilt under 30k km engine management, Rb30e wiring, dizzy, greddy piggy back ecu in combination with rb30e ecu, or haltech e6x ecu or possibly sprint 500 front mount intercooler depending on air temps it will be running to start with 8-12 psi and once everthing is clocked in and tuned i might try to get to 15-17 psi but im fairly certain that the n42 head will not allow this without major timing retading. Quote Link to comment Share on other sites More sharing options...
RB30X Posted September 11, 2012 Share Posted September 11, 2012 i have a very worked over one with big converter and all the race parts with big sump from kees , i ran 9.90 and 139 so i think there pretty strong , i spent 5k on this one , if any one wants it its for sale for $1500 .. Keas autos are the bomb, this price is a steal!!! Quote Link to comment Share on other sites More sharing options...
peter mc Posted September 11, 2012 Share Posted September 11, 2012 yep the converter was $2000 by it self , has billet input shaft and Kevlar bands all the cool parts , full manual shift as well with trans brake , not really a road car trans , but lodes of fun at the track Quote Link to comment Share on other sites More sharing options...
neRok Posted September 11, 2012 Share Posted September 11, 2012 Whilst on the topic of full manual shifting, has anyone managed to connect a B&M or similar ratchet shifter? Quote Link to comment Share on other sites More sharing options...
peter mc Posted September 12, 2012 Share Posted September 12, 2012 yes my one has one on it and only small mods Quote Link to comment Share on other sites More sharing options...
neRok Posted September 13, 2012 Share Posted September 13, 2012 yes my one has one on it and only small mods Care to elaborate? Is it just getting the linkage to the box setup with the correct radius/throw? Quote Link to comment Share on other sites More sharing options...
RB30X Posted September 13, 2012 Share Posted September 13, 2012 Its more so about making a custom bracket that bolts to your auto that allows the B&M cable to work the factory gear selector on the side of the box. Apart from that it just bolts onto your trans tunnel and you're away. Quote Link to comment Share on other sites More sharing options...
neRok Posted September 14, 2012 Share Posted September 14, 2012 Sounds simple, but im still not 100%. Example, if the B&M cable push/pulls 10mm during gear changes and the factory auto gear selector moves 15mm, this isnt going to work. Or are the travel amounts the same and im thinking too hard? Quote Link to comment Share on other sites More sharing options...
Scoota G Posted September 14, 2012 Share Posted September 14, 2012 I don't know what to say about that, it's just an exercise in logic. Like move the position of the cable up or down the shift lever to match or make up a new lever (the one that connects to the gearbox) Quote Link to comment Share on other sites More sharing options...
RB30X Posted September 14, 2012 Share Posted September 14, 2012 Sounds simple, but im still not 100%. Example, if the B&M cable push/pulls 10mm during gear changes and the factory auto gear selector moves 15mm, this isnt going to work. Or are the travel amounts the same and im thinking too hard? I understand your concern but if you think about it, B&M make this shifter to suit almost all cars, so they're pretty confident you can make it work. If the factory bracket on the auto only lets the cable travel 15mm and the B&M travels 10mm (using your example) you just lower the point that the cable attaches to the linkage on the trans to minimise the radius of the circle and thus, less travel (10mm). I had a Pro Ratchet shifter in one of my VL Turbos and its was wicked for quick shifts while battling the wheel to keep the car straight. Not sure if I'd like it in a street car though. Quote Link to comment Share on other sites More sharing options...
Scoota G Posted September 14, 2012 Share Posted September 14, 2012 I am going to fit one into the V8 conversion i am doing because the transmission mounting point gets in the road of the shifting rod. But C4 fitting is store bought. I'm sure they had shifters to suit Jatco on ebay but. Quote Link to comment Share on other sites More sharing options...
peter mc Posted September 14, 2012 Share Posted September 14, 2012 your right to think it not as simple as that , keas make a new bracket for the trans and the shifter needs some love to make it just right Quote Link to comment Share on other sites More sharing options...
pauly_adams Posted September 14, 2012 Author Share Posted September 14, 2012 wow ive started a full auto trans thread, in other news i now have a new ecu i ended up with a greddy semi pigyback system so the work begins next week Quote Link to comment Share on other sites More sharing options...
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