Ryan Merrill Posted August 26, 2015 Share Posted August 26, 2015 I would prefer the 4L80e as its a much stronger transmission. I am going auto with paddle shifters and I talked to one person that fit a 4L80e in a 240z tunnel. I just wondering has anyone one else put one in and what what your experience? Quote Link to comment Share on other sites More sharing options...
260DET Posted August 28, 2015 Share Posted August 28, 2015 4L85E into a 280ZX here, basically plenty of room with just a few small mods needed. So if you can compare a S130 tunnel with a S30 tunnel then.............. Quote Link to comment Share on other sites More sharing options...
str8pipez Posted August 31, 2015 Share Posted August 31, 2015 (edited) I have 4L60E in my 280Z. The issues I have are room for exhuast (I must change to oval tube) and the right side of the trans tunnel needs to be hammered in or cut out and replaced. Also absolutely no access to the coolant lines at the trans. Oh, the plug for the computer is also a bitch to reach as well. I'm going to completely rework my tunnel this winter. Edited August 31, 2015 by str8pipez Quote Link to comment Share on other sites More sharing options...
Ryan Merrill Posted September 5, 2015 Author Share Posted September 5, 2015 if the 60's giving you trouble dont try the 80, its a much gbigger trans. One member here has it installed. The connector was the biggest problem. Is the 4L80E worth it in our light cars? Quote Link to comment Share on other sites More sharing options...
texis30O Posted September 9, 2015 Share Posted September 9, 2015 It all depends on your power goals. Quote Link to comment Share on other sites More sharing options...
260DET Posted September 11, 2015 Share Posted September 11, 2015 Depends on use too of course but using a LSx seems to carry with it big, bigger and more bigger power potential so don't underestimate what's required transmission wise. Don't know about anyone else but I hate building something and then having it break, grrrr. Quote Link to comment Share on other sites More sharing options...
Zfan1 Posted September 11, 2015 Share Posted September 11, 2015 For me it was not having to replace trashed 4L60E's all the time. I am only making around 520rwhp on motor and 670'ish on a shot of juice thru the 4L80E but I know the 4L60E would die a quick death unless heavily modified! Quote Link to comment Share on other sites More sharing options...
nathaninwa Posted September 17, 2015 Share Posted September 17, 2015 I can confirm that the 80e fits in a 240 tunnel with the passenger head about an inch from the firewall. There is still room for fuel lines above it and it can go as high until the slip yoke hits the coin tray under the console. There is no room for exhaust except under the floor pan so like said oval tubing would be nice. The trans electrical connecktr tucks nicely out the tunnel near the seats front. And if you used banjo cooling lines they will fit too, I went 90* an stuff for flow and had to cut the tunnel for the fittings to fit Quote Link to comment Share on other sites More sharing options...
Phantom Posted September 17, 2015 Share Posted September 17, 2015 How does the 4L80E compare in size to the 6L80E? If I were going to start from scratch and try to cram something in there I'd be looking at the additional gears. If it can run behind the ZL1 Camaro it should be pretty good. You're issue after that, though, will be the differential and rear axles. If you're going big HP you need to go solid axle or start looking at what the high HP 'Vettes are using. Quote Link to comment Share on other sites More sharing options...
nathaninwa Posted September 17, 2015 Share Posted September 17, 2015 I'm not fond of the gear choices for a 6l80e, especially in a light car unless you can gear for it Quote Link to comment Share on other sites More sharing options...
Ryan Merrill Posted November 21, 2015 Author Share Posted November 21, 2015 6L80 can hold the power yet and it's expensive to get it to hold 700 HP. Quote Link to comment Share on other sites More sharing options...
Mikey303LSZ Posted November 28, 2015 Share Posted November 28, 2015 (edited) Here's a photo of my '73 240z with an LS1 and 4L60E. Had to beat the floor boards in around the tunnel to fit the exhaust. Edited November 28, 2015 by Mikey303LSZ Quote Link to comment Share on other sites More sharing options...
OMONLA Posted January 2, 2016 Share Posted January 2, 2016 For me it was not having to replace trashed 4L60E's all the time. I am only making around 520rwhp on motor and 670'ish on a shot of juice thru the 4L80E but I know the 4L60E would die a quick death unless heavily modified! zfan1 do you have any type of sketch/plans of your trans mounts for the 4l80e? Quote Link to comment Share on other sites More sharing options...
Zfan1 Posted January 2, 2016 Share Posted January 2, 2016 No I sure don't, my friend built it from scratch using my old 700r4 base mounting points in the trans tunnel. I will see if I have any pictures, the exhaust doesn't fit in the tunnel but I wasn't too worried about clearance. I am running long tube headers and dual 3" exhaust with Dynomax 14x4x3 oval mufflers, not noisy at all. Mike Quote Link to comment Share on other sites More sharing options...
OMONLA Posted January 2, 2016 Share Posted January 2, 2016 if you could please the pics would help....at least i have some direction with your description of modifying the 700r4 base...maybe we'll just mod the one off the donor vehicle.. thanks for the tip! i think i hit you up on LS1TECH....please disregard Quote Link to comment Share on other sites More sharing options...
Ryan Merrill Posted January 3, 2016 Author Share Posted January 3, 2016 Awesome guys, thanks for posting. Been trying to find one that fairly cheep here in ontario. No luck yet. Most want %800-1200 for a used trans. Quote Link to comment Share on other sites More sharing options...
Savage42 Posted January 10, 2016 Share Posted January 10, 2016 (edited) Someday, I'm hoping that I'll be able to put the new 8L90 with paddleshift into my Z.....faster shifting than the Porsche and 8 gears....oh, that would be fun!! It'll take some serious floor/tunnel modification, but may be worth it. After driving a Ferrari 360 Challenge car, I really want a true paddleshift setup, but after talking to the guys who have it with the 4L60E say it's not really worth doing. Guess I have to try one to see if it's worth putting the paddleshift setup in my car now. Anyone have any experience with the TCI or other setups? I know it's slow and not like most newer cars. Edited January 10, 2016 by Savage42 Quote Link to comment Share on other sites More sharing options...
ktm Posted January 11, 2016 Share Posted January 11, 2016 Here's a photo of my '73 240z with an LS1 and 4L60E. Had to beat the floor boards in around the tunnel to fit the exhaust. I don't know how I missed this. How on earth did you get the clearance for the exhaust? What diameter are you using from the headers? I used 2.5-in. and the passenger side drops fairly low due to clearance issues between the 4L60E and the tunnel. Quote Link to comment Share on other sites More sharing options...
Ryan Merrill Posted January 11, 2016 Author Share Posted January 11, 2016 I'm going to try installing a 4L80e. Exhause will be 3" oval exhaust. Quote Link to comment Share on other sites More sharing options...
Mikey303LSZ Posted January 12, 2016 Share Posted January 12, 2016 Modified a JCI transmission mount (turned it into a cantilever design). Beat the floor boards in on both sides of the transmission allowing room for 2.5" pipe which merge into a 3" single. I'm really happy with it - sits up nice and tight. The goal was to be able to remove the pan for filter service w/out removing the exhaust and not see the pipes hang down from the rear or sides of the car. You can see more photos of the mount and exhaust on my post titled "A big thank you - 240 LS Conversion." Tried to put the link in this reply and my computer locked up... Quote Link to comment Share on other sites More sharing options...
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