Registry 8x Series V8 Swaps (11 Viewers)

[Maddjack]

Pretty much but what I have is old but made the same. Where are you pulling air into the box from? I don't see an inlet

From the oem fender hole an a 4" vent in the hood.

Pretty much but what I have is old but made the same. Where are you pulling air into the box from? I don't see an inlet

 

[tmxmotorsports]

From the oem fender hole an a 4" vent in the hood.


View attachment 3898973

View attachment 3898974

Well that's different

 

[Wisco80]

Hey y'all, still mentally planning my 5.3 swap into 93 fzj80. If someone has a spare moment to answer a few questions I've been mulling over that would be awesome!

1. I've decided that I probably want to get a 4L80 trans, as I want the robustness, longevity and I may try to make more power in the future (future midlife crisis prep) Q: how difficult is it to pair up 5.3 + 4L80? Is it as simple as a spacer and different flexplate? Marks adapter + 2WD transmission I assume? Do I have to modify my driveshaft?

2. DBC vs DBW? Initially was leaning cable, but it seems wire is more common and less finiky for gen 3 vortecs. Can I possibly wire my stock cruise to the gym ecu or do I have to have some aftermarket module on the dash.

3. PSI harness vs stock modification: initially was leaning PSI but found some guys on YouTube saying it's really not that difficult tomodify the GM harness.

Thanks for any info guys

 

[808keith]

Hey y'all, still mentally planning my 5.3 swap into 93 fzj80. If someone has a spare moment to answer a few questions I've been mulling over that would be awesome!

1. I've decided that I probably want to get a 4L80 trans, as I want the robustness, longevity and I may try to make more power in the future (future midlife crisis prep) Q: how difficult is it to pair up 5.3 + 4L80? Is it as simple as a spacer and different flexplate? Marks adapter + 2WD transmission I assume? Do I have to modify my driveshaft?

2. DBC vs DBW? Initially was leaning cable, but it seems wire is more common and less finiky for gen 3 vortecs. Can I possibly wire my stock cruise to the gym ecu or do I have to have some aftermarket module on the dash.

3. PSI harness vs stock modification: initially was leaning PSI but found some guys on YouTube saying it's really not that difficult tomodify the GM harness.

Thanks for any info guys

Lots of info on the LS sites if you google 5.3+4l80. A 4L80E will bolt up but its not plug and play, You'll need a flex plate, torque converter, plug adapter. You'll also have to reprogram the ecm. For your driveshaft it depends on if the adapter places your T-case back in the factory location. You probably only have to worry about the front driveshaft, like a skinner driveshaft to clear the trans.. some of the 6.0 swap guys on should be able to chime in on that. But kind of a ballpark idea what you'll need.

I haven't dove into the cruise yet on mine nor have I done any research..

Again, there's a lot of info from the LS guys and youtube to modify the factory GM harness. They show you exactly what you have to do. Depends on if you want to do the work or go aftermarket. I run a Holley Terminator Xmax. There's also sites that sell ls swap harness already for not that much. Don't forget you still need to get the ecm security flashed.

 

[808keith]

What gen Supra? IV I assume?

I think so.. I can't remember but it's this one Denso Supra Fuel Pump 950-0155 that I used.

 

[NeverFinis]

I think so.. I can't remember but it's this one Denso Supra Fuel Pump 950-0155 that I used.

Thanks.

For future reference for others.

Supra MK IV Fuel Pump:

• Old Denso number: 195130-1020
• New Denso number: 195130-1270
• Denso kit w/pump number: 950-0155
• Toyota number: 23221-46110
• Kyosan number: E3000-146825

 

[stuntheavy]

Hey y'all, still mentally planning my 5.3 swap into 93 fzj80. If someone has a spare moment to answer a few questions I've been mulling over that would be awesome!

1. I've decided that I probably want to get a 4L80 trans, as I want the robustness, longevity and I may try to make more power in the future (future midlife crisis prep) Q: how difficult is it to pair up 5.3 + 4L80? Is it as simple as a spacer and different flexplate? Marks adapter + 2WD transmission I assume? Do I have to modify my driveshaft?

2. DBC vs DBW? Initially was leaning cable, but it seems wire is more common and less finiky for gen 3 vortecs. Can I possibly wire my stock cruise to the gym ecu or do I have to have some aftermarket module on the dash.

3. PSI harness vs stock modification: initially was leaning PSI but found some guys on YouTube saying it's really not that difficult tomodify the GM harness.

Thanks for any info guys

4l80, blackbox, dbw would be my choice from those.

I did a 6.0/6l90/blackbox, dbw, and Holley terminator. In retrospect, the aftermarket support just isn’t quite there for the 6l90, yet. Not many people are using them in 4x4s yet, so the 4l80 is probably a better choice unless you spend a ton of time in the highway commuting(which then wouldn’t do a blackbox either)

 

[NeverFinis]

4l80, blackbox, dbw would be my choice from those.

I did a 6.0/6l90/blackbox, dbw, and Holley terminator. In retrospect, the aftermarket support just isn’t quite there for the 6l90, yet. Not many people are using them in 4x4s yet, so the 4l80 is probably a better choice unless you spend a ton of time in the highway commuting(which then wouldn’t do a blackbox either)

What is specifically lacking in aftermarket support for a 6L90e that you need?

I mean, I wouldn't choose any other transmission....

 

[stuntheavy]

What is specifically lacking in aftermarket support for a 6L90e that you need?

I mean, I wouldn't choose any other transmission....

Holley terminator X has very limited support in comparison to what tables are available for the 4l80. When I built mine, the only other option was the oem computer. I planned on Flexfuel and have a billet7875 for it, so I really wanted to get away from HPTuners.

Expense and added complexity of a CAN controlled trans when relating to cruise control, reverse lights, tap shifter. Parts are less likely to be found “on the shelf” than the 4l80 or even the 6l80, but hopefully that gets better with time.

 

[FlyinFaded]

I honestly don’t understand why it’s been so aggravating for so many. My setup is stupid simple and has worked perfectly for a long time.

I’m acquiring parts for my lq4 4l80 swap. I keep seeing talk of this trailblazer cable. Do you know what year I need to purchase for it a part number? I haven’t found that listed or I have missed it.

Also this may be a stupid question. I’m getting a harness made and a computer from spear tech. Is a new fuse box required for this project or can we just use the Toyota one? This is a new question I’ve come up with since reading through this thread. First time doing something like this

 

[cruisermatt]

80 series DBW pedal mounts finally ready for sale.. works with C10 pedal for Gen3, and Corvette pedal for Gen 4/5 or Holley

 

[EricG]

80 series DBW pedal mounts finally ready for sale.. works with C10 pedal for Gen3, and Corvette pedal for Gen 4/5 or Holley

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Cool - where do I find it? I've never been happy with what I put together.

 

[cruisermatt]

Cool - where do I find it? I've never been happy with what I put together.

I will have them on the website next week!