Rumnhammer Posted June 18, 2006 Share Posted June 18, 2006 Hi all, I was removing the L28 from my friends car to install the RB25DET and noticed, that the tranny mounts in a sling type mount, between two "ears" I believe the RB tranny is a bit fatter, should I cut out the ears? then make a mount that through bolts through the floorpan. would that increase the amount of room for the RB tranny? Chris Rummel Quote Link to comment Share on other sites More sharing options...
stony Posted June 18, 2006 Share Posted June 18, 2006 Yes:search: Quote Link to comment Share on other sites More sharing options...
Rumnhammer Posted June 18, 2006 Author Share Posted June 18, 2006 I did a search, but only came up with the various mounts people had made, since it seems most people are doing the swap into 240's that have the boxed section the the bolts go up into, and most pics I've seen only show the mounts and still have the boxed section instead of the ears, I'm guessing that the boxed sections don't intrude on the tranny as much as the ears seem to. Here's a couple of other questions I was wondering about, The throttle, stock is a linkage so to convert to throttle cable, will any pedal and cable that is long enough work or is there a specific application you guys are using? I think I saw mention of a toyota pickup cable being used, and I think that is what I'll go with since they seem to be long enough (I have one as my daily driver). Also I saw the thread how to bypass the external regulator, but on the 280z you have a bunch of fuseable links etc over there by the regulator, can someone post a pic or link to a pic that says what most of them are for? obviously ones for main power must stay but if there are ones for stock fuel injection, ac or other redundant funtions I'd like to ditch them to free up room in the engine compartment. Thanks for tolarating my newbie questions, but like I said, most of the swaps on here are into previously carbed cars and it seems harder to find pics from 280's. Chris Rummel Quote Link to comment Share on other sites More sharing options...
ZDrifter Posted June 19, 2006 Share Posted June 19, 2006 Hey Chris, turns out im doing the same swap into my 280 I havent recieved my motor yet so i dont know what to expect but im already learning from your questions I figure we can help each other out some when we find out info so if i find out anything ill help you out. i know how you feel about not much info on 280's and fuel injection. good luck Quote Link to comment Share on other sites More sharing options...
Rumnhammer Posted June 20, 2006 Author Share Posted June 20, 2006 Hey, no problem. I'm far from being a newbie at this stuff, just new on this board. I've done lots of other cars, in fact I've been working on Japanese cars for 20years now. In fact my first one I started on was a 71 240z that had the L28 block with the early 240 head webers, cam etc. I'm mostly a Mazda guy, and mainly known for being "the guy that made swapping a B6T into a festiva easy" Believe me coming from the festiva board, I can tell you that redundant questions asked over and over again get really tiresome, so I know where stoney is coming from. I won't be asking silly questions like give me a list of everything I need to do the swap. What I will ask is for specific info for taking the path of least resistance, ie what works. I'm not about reinventing the wheel, so if someone has info that works, I won't spend valuble time looking for alternatives. I have noticed on here, that although info seems to be freely given, there seem to be few pics and or things explained compleatly with detail. I'll definatly share all my info as I do this car, I believe that the more info given makes the path easier for those that follow. I'll be sure and post any snags I have along the way. Chris Rummel Quote Link to comment Share on other sites More sharing options...
stony Posted June 20, 2006 Share Posted June 20, 2006 Mine was a 260 i had the ears that had to be cut off and made smaller. if you use the r33 5 speed this has to be done. if you use the rb20 ( not recomended) you dont have to cut the ears. As for throttle i used the throttle cable from the z31 i got the mounts from, and had my gas pedal modified for the cable. It conviently clipped into the hole into the firewall to:> My writeup was done on my personal experience with my late modle 260 which is basicallly the same as the 280, so everything i did should be the same in the 280. Quote Link to comment Share on other sites More sharing options...
Rumnhammer Posted June 20, 2006 Author Share Posted June 20, 2006 Thanks stoney, mostly the different stuff I was looking for as it is for the 280 has to do with fuel injection. That early crude fuel injection is a trip, shows all the relays and stepper motors and junk that has been replaced with modern ecu programing. I dug out my old Haynes manual with the 280z suppliment and it shows the various relays, tons of stuff that is likely redundant, like the floor temp sensor and catalist sensor etc. Funny thing is with this swap it seems easier to do with a previously carbed car, since you only really need to mod the fuel system to get the injection to work. On the 280, I was pleased to find the ECU and all the fuel injection wiring (excluding the other crap sensors mentioned) to be a separate harness that goes to the same location as it is in the skyline, Excellent!! no rerouting to do, I'm going to remove the entire ecu and this harness and just replace it in the same location with the skyline stuff. Here is a new question, my friends ignition switch is buggered up, as is the plastic that surrounds it. I was going to use the skyline ingition switch, (which plugs right in by the way) but the plastic that surrounds the skyline switch is too fat to fit. I noticed in others pics that the plastic is often missing, is this plastic unavalable? should I just nix the plastic and use the skyline switch or piece his broken plastic back together and just get a new Z switch from victorias secret? Chris Rummel Quote Link to comment Share on other sites More sharing options...
240Z_Master Posted June 20, 2006 Share Posted June 20, 2006 Here is a new question' date=' my friends ignition switch is buggered up, as is the plastic that surrounds it. I was going to use the skyline ingition switch, (which plugs right in by the way) but the plastic that surrounds the skyline switch is too fat to fit. I noticed in others pics that the plastic is often missing, is this plastic unavalable? should I just nix the plastic and use the skyline switch or piece his broken plastic back together and just get a new Z switch from victorias secret? Chris Rummel[/quote'] Too bad I know jack for beans about the 280Z wiring, but if it were me, I would rip the whole thing out and start somewhat fresh, but that's me being a Dr. Jekyl to my car... Still need help give me a call. I have to make it out there a day, but no car. Quote Link to comment Share on other sites More sharing options...
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