stony Posted August 13, 2001 Share Posted August 13, 2001 I think it was dan lewis a while back that was gonna try to install the AWD drivetrain from a gtr....????? I dug my GTR oil/front diff pan out and kind laid it under the car to see what it would take to get the stuff in... Well in short the way the diff sits under the engine the motor wouold have to be so far fwd that you would have to cut the rad core support!!!!! and on top of that the diff would sit right where the crossmember sits. As far as im concerned this is not a feasible swap. now for some of you engineers that nothing is impossible id still like to see one done. Its just with the stock oil pan i dont think it can be done. any opinions?? l8rz stony Quote Link to comment Share on other sites More sharing options...
GrayZee Posted August 14, 2001 Share Posted August 14, 2001 I've got a idea for a AWD setup in a Z but it involves using a GM V6 and a very hard to get transmision(probably like a holy grail, or a hen's tooth!)... Use a powertrain from a Pontiac 6000 AWD. You'd have to figure a way to use FWD steering knuckles (for the CV axles) and then run a drive shaft to the rear axle (that should be the hard part right guys? ) Of course I don't know what kind of gear ratio would match a AWD 6000?? Also I'm sure a 3.1 Zcar wouldn't be enuf power for most of you boys.. (maybe a 3.4 or 3.8V6 would bolt up to that tranny??) add a blower or turbo and I'm sure it would have enuf power to get out of a V8Z's way! What do you guys think of that idea? "build it and they will come" Quote Link to comment Share on other sites More sharing options...
dpwong Posted August 14, 2001 Share Posted August 14, 2001 Hi, I think the only way to install the AWD from the Skyline GTR is to install the whole front suspension and front drivetrain with the engine from underneath ,like a factory install method. What do you think Stoney? dpwong Quote Link to comment Share on other sites More sharing options...
DavyZ Posted August 14, 2001 Share Posted August 14, 2001 Would it be at all possible to use the Syclone/Typhoon set up? Summit racing built that one roadster with that setup a number of years ago and it does not look too heavy. Is there any merit to the idea? Davy Quote Link to comment Share on other sites More sharing options...
Mike C Posted August 14, 2001 Share Posted August 14, 2001 That's funny. I started to post that earlier. The drawback is the transfer case. You could probably use the front axle and adapt it to a FWD strut setup, but where to putl the t-case? It's on the back of the trans and would pretty much displace the seat! I'm not sure how subaru or BMW (325ix) handle it with their cars. I think the subaru is primarily FWD and the output for the rear is just off the transaxle. Anybody? Quote Link to comment Share on other sites More sharing options...
stony Posted August 14, 2001 Author Share Posted August 14, 2001 theres another point!!!! the gtr tranny has a transfer case to but its on the passenger side in japan which in the states is the drivers seat ;< im thinking that the amount of effort envolved in engineering an awd Z for traction is not worth it. IMHO A z with the rear suspension setup right can launch just as hard as an AWD z. and for alot less money ;> Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted August 15, 2001 Share Posted August 15, 2001 Hey Stony, In the Skyline GTR, the transfer case is on the drivers side of the car which would make that the passenger side in the US cars not the other way around. The GTR's have a large bump under the tunnel side of the (right) driver's seat. I haven't drop the engine in the bay yet but it looks pretty close for the front drive shafts in relation to the front wheels. It would be hard to use any other front diff for the Z because the GTR has the front diff cast into the aluminum pan and the drive shaft passes through the pan from right side where the diff is placed and then go's to the left side. The diff is mounted high up and the shaft that runs thought the oil pan is very close to the bottom of the block and go's under the crank (close fit!) Using another diff would have to go under the oil pan and the diff would be almost on the ground. I cut the complete drive train out and it way a 1994 R32 GTR and I took allot of pics ( don't know how to post them ) I still on the bubble as what to do. I have a Lexus V8 just sitting in the Z now ( not hooked up) and the GTR engine is ready to re-assemble and rebuild. and the stock L24 on a stand. The Z is a 1970 240 make in 1/70 with a vin# 1023 with 83k on it. I have it stripped bare ( I think it's blushing )on a rolling dolly ready to be chem dipped.If I put the complete GTR setup ( time to plug in the plasma cutter ) or just put in just the GTR engine and keep the look close to stock with out cutting much on the car or sell the car to someone to restore and buy another one to go crazy on. (no pun).I would like to be ready for the MSA show. Hey, what would you guys do?? Say Stony, did you get the engine to idle right? If I need to get the correct pan and trans to go just rear wheel drive do you know of anybody that could get one? Dan Quote Link to comment Share on other sites More sharing options...
stony Posted August 15, 2001 Author Share Posted August 15, 2001 yes that would be one way but again if i remember correctly the front wheel axles are inline with the front wheels and since the diff and axles are way back on the backside of the engine it would put the engine up into the core support Quote Link to comment Share on other sites More sharing options...
stony Posted August 15, 2001 Author Share Posted August 15, 2001 What allot of people in japan do is cut the diff portion off the gtr pan but that is for a car like the silvia where the sump will clear. the rb-20 oil pan requires alot of messaging and the oil pickup needs to be made. eventually im gonna mod the gtr aluminum pan to fit but thats not for a while. and too answer your question no i dont have an oil pan right now i can put it out that i need one and see if i can get one for ya. Since you have a rb-26 you could get an rb-25 block bore it up and do the neccessary mods and bolt all the 2.6 stuff to it and teh rb-20 oil pan will bolt right up. Being you are in the states i would say thats you easiest route. you could check with these motor importers for the rb-25. Im not exactly sure about what needs to be done to swap over to the 2.5 block but its not much. anyways that mod is alot more then id be willing to take on ;> i think the 2.6 with a backhalved car or even just a beefed up z rear end would be good for a 9 sec Z maybe better ;> l8rz stony Quote Link to comment Share on other sites More sharing options...
stony Posted August 15, 2001 Author Share Posted August 15, 2001 Dan Hey also if you dont use the gtr brakes id be very interested in taking those off your hands ... did you also get the rears? let me know Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted August 16, 2001 Share Posted August 16, 2001 I have the complete rear end and the complete front end also. The brakes are cross drilled and I think they were stock for that year. I will let you know what I will do with them. Later, Dan Quote Link to comment Share on other sites More sharing options...
randy 77zt Posted August 16, 2001 Share Posted August 16, 2001 a suggestion for 4x4 z-ditch the z crossmember and build a new one.get some front struts from a fwd car.when you get it all together have some shafts splined to fit the cv joints.for inspiration i spend time looking at parts cars at local pick&pull-lots of parts to look at.also look at world rally cars .i used to be on a pit crew for a offroad racing team.the more different types of cars you look at the more possabilities for solutions you will get. Quote Link to comment Share on other sites More sharing options...
Guest jens Posted August 16, 2001 Share Posted August 16, 2001 If you want a 4wd setup with 65% at the rear and 35% front try and look at a sierra cosworth 4wd with 3.62 diff. If you can live with 4 banger noise the 2.0 engine has 220 hp and can easily be modified to 360 hp without changing the turbo. I saw a escort cosworth this weekend doing 12,77 with around 360 hp. Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted August 16, 2001 Share Posted August 16, 2001 Sounds like good advise from Randy and Jens. Staying totally Nissan is probably not going to cut it (I won't say its not possible, but its going to limit your ways of doing it considerably.). It would probably be best as they said to remove the front suspension and crossmember and start with a clean slate. From there start looking at all possible 4wd/FWD candidates here and abroad. It isn't going to be a bolt-in any way you look at it, probably not cheap, but man, it would be neat as all get out when its done. The Z is small, but so are alot of the world rally cars, so who knows it might be possible if you expand your search a bit. Regards, Lone Quote Link to comment Share on other sites More sharing options...
Guest jens Posted August 16, 2001 Share Posted August 16, 2001 Here is a link to a opel manta with cosworth 4x4 innerfenders engine, 4x4 trans and rearend. http://www.manta400.com/Galleries/Tuning_Gallery/cosworth_400/cosworth_400.html or this one www.dubsport.com/projects.asp a frontwheeldrive vr6 engine in the rear for ferrari like traction and handling or 2 golf vr6 engines in one car delivering 400-450 hp each. The problem with manual gear would be the shift linkgage but a auto would be easy. Some really crazy people have fitted a 400 hp 550 ft/lbs cadillac 500 with th 425 in the rear but it would be too long for a z. Have anyone tried a cad 500 in the front a chevy 427 has been done without cutting the innerfenders and its 100 pounds heavier. Quote Link to comment Share on other sites More sharing options...
240Z Turbo Posted August 17, 2001 Share Posted August 17, 2001 This is something that I am definitely going to do when I graduate. I am here in New Zealand and had the chance to look over an RB26 on an engine stand for quite some time along with the tranny. As Stony said the front diff is not in the ideal position, but I think that is somewhat trivial. If you are going to attempt this swap you had better accept that you are going to be doing alot of custom stuff and changing things at every corner. i don't see it as being impossible to relocate the diff with respect to the engine so that you can position the motor where it needs to be. I have always known the stock cross member would have to be scrapped and if you had the whole front clip you could graft it into the Z. the engine and front suspension has its own subframe that could be bolted to the 240 if properly planned. Anyway, to answer Stony's question. Mount the engine and then mod the pan to move the diff location. You will have to notch the tunnel on the passenger side for the transfer case and do all the other mods. It is a big job, but I think it can be done and you had better have that attitude if you were to attempt the swap. Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted September 14, 2001 Share Posted September 14, 2001 I am not sure what kind of performance you can get out of them but if AWD is the goal then whynot look into older from mid 80's Subaru drive train. They are tough and dependable and work very very well in the snow. The newer would sure run good but I have not seen it in person to know if it would fit. WRX would damn sure be fine for perfonrmance. Jake Quote Link to comment Share on other sites More sharing options...
240Z Turbo Posted September 14, 2001 Share Posted September 14, 2001 Yea, but its not a Nissan motor and the potential for power is less. BTW Jake, do you live in Houston? Quote Link to comment Share on other sites More sharing options...
pparaska Posted September 15, 2001 Share Posted September 15, 2001 quote: Originally posted by 240Z Turbo: Yea, but its not a Nissan motor ...like that matters. quote[... and the potential for power is less. Probably so. At least economically. Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted September 15, 2001 Share Posted September 15, 2001 Glendale Arizona, born and raised Quote Link to comment Share on other sites More sharing options...
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