1992 RS 6.0 4L80E Swap
#1
1992 RS 6.0 4L80E Swap
Hey all, just wanted to get a thread going on my 92 LS swap to document some things and get some info/tips/input from you guys doing the same work. I've been at it a few months now so I'll upload a bunch of pictures and keep tracking progress from there. Any help/tips are appreciated!
Build is as follows
6.0 lq4 bored 0.030, ls6 intake, stock crank, eagle forged rods, mahle forged pistons 11:1, custom grind comp cam, factory 243 heads with manley 0.660 dual valve spring kit, trunion upgrade with stock rockers, walbro 255 fuel pump, corvette regulator
4L80E with transgo shift kit
All motor mounts / crossmember / exhaust will he holley's LS swap system
Build is as follows
6.0 lq4 bored 0.030, ls6 intake, stock crank, eagle forged rods, mahle forged pistons 11:1, custom grind comp cam, factory 243 heads with manley 0.660 dual valve spring kit, trunion upgrade with stock rockers, walbro 255 fuel pump, corvette regulator
4L80E with transgo shift kit
All motor mounts / crossmember / exhaust will he holley's LS swap system
Last edited by irishhockey34; 08-16-2018 at 07:06 PM.
#2
Re: 1992 RS 6.0 4L80E Swap
donor motor, lq4 4l80e 2wd
harness as taken out from donor truck
and cleaned up / ready for interface with thirdgen harness. found a great writeup over at http://lt1swap.com/2004vortec_pcm.htm
this site is a HUGE help in determining pinouts and all things wiring related. I just did the normal stuff (ac delete, emmissions delete, yadda yadda)
harness as taken out from donor truck
and cleaned up / ready for interface with thirdgen harness. found a great writeup over at http://lt1swap.com/2004vortec_pcm.htm
this site is a HUGE help in determining pinouts and all things wiring related. I just did the normal stuff (ac delete, emmissions delete, yadda yadda)
#4
Re: 1992 RS 6.0 4L80E Swap
wanted to get the engine bay painted while everything was out. went with a sherwin williams artic white single stage. turned out great, was very pleased with this being my first actual automotive (not rattlecan) painting project.
#5
Re: 1992 RS 6.0 4L80E Swap
now onto the undercarriage. I ended up going with Eastwoods Underbody Rust Encapsulator prodcut after much debate with por15. I'm happy with the result, went on easy and looks great. Time will tell on durability. Took about 6 cans to do the whole undercarriage and k member
#6
Re: 1992 RS 6.0 4L80E Swap
onto the fuel system. ended up going with a walbro 255 pump, corvette filter/regulator combo with -6an adapters, and running all new -6an PTFE line from the factory fittings to the fuel rail. Had all lines made up at the local hydraulic shop (this is the way to go people! don't mess with cutting your own lines and putting fittings on. I was in and out in 30 mins and price was just a little higher than if I bought hose and hose ends myself)
Trending Topics
#13
TGO Supporter
iTrader: (4)
Join Date: Jul 1999
Location: CT
Posts: 1,992
Likes: 0
Received 9 Likes
on
8 Posts
Car: 1986 Camaro SC
Engine: 305 TPI Procharged D1SC
Transmission: Tremec TKO-600
Axle/Gears: Moser 12 Bolt 3.73 posi
Re: 1992 RS 6.0 4L80E Swap
looking good, best thing i did to my car was the lq9 swap!
#14
Supreme Member
iTrader: (9)
Re: 1992 RS 6.0 4L80E Swap
your car is coming along nicely and the engine bay turned out great.
your swap is almost an exact copy of what i'm currently doing on my 1984 Trans Am. it's slow going, but i've been making some good progress this summer. i'm most nervous about the wiring. i want to modify the harness myself to save a good chunk of money, but worried i'll screw something up.
here's a link to my build thread: https://www.thirdgen.org/forums/memb...-am-build.html
your swap is almost an exact copy of what i'm currently doing on my 1984 Trans Am. it's slow going, but i've been making some good progress this summer. i'm most nervous about the wiring. i want to modify the harness myself to save a good chunk of money, but worried i'll screw something up.
here's a link to my build thread: https://www.thirdgen.org/forums/memb...-am-build.html
#17
Member
iTrader: (1)
Join Date: Dec 2012
Posts: 124
Likes: 0
Received 3 Likes
on
2 Posts
Car: 91 RS
Engine: 4 bolt 350, .060 over
Transmission: 700R-4
Axle/Gears: 3.23
Re: 1992 RS 6.0 4L80E Swap
donor motor, lq4 4l80e 2wd
harness as taken out from donor truck
and cleaned up / ready for interface with thirdgen harness. found a great writeup over at http://lt1swap.com/2004vortec_pcm.htm
this site is a HUGE help in determining pinouts and all things wiring related. I just did the normal stuff (ac delete, emmissions delete, yadda yadda)
harness as taken out from donor truck
and cleaned up / ready for interface with thirdgen harness. found a great writeup over at http://lt1swap.com/2004vortec_pcm.htm
this site is a HUGE help in determining pinouts and all things wiring related. I just did the normal stuff (ac delete, emmissions delete, yadda yadda)
#18
Supreme Member
iTrader: (15)
Re: 1992 RS 6.0 4L80E Swap
I think single stage in the Arctic white for an engine bay was a good choice. I went with single stage DuPont Arctic white for the underside of my hood and was actually impressed with how it turned out.
#19
Senior Member
Re: 1992 RS 6.0 4L80E Swap
You should review the B&M installation .pdf. https://static.summitracing.com/glob...er_techdoc.pdf They don't recommend the installation you have.
#21
Senior Member
Re: 1992 RS 6.0 4L80E Swap
The top of the page shows correct cooler orientation (fittings on the top or sides). His orientation may cause issues with the system cooling efficiency.
From the .pdf: It is not recommended to mount the cooler with the fittings pointing down as this may create an air pocket in the cooler resulting in reduced cooling efficiency. When mounting the cooler with the fittings on the right or left side, the lower fitting must be the inlet with the top fitting routing the fluid back to the transmission
From the .pdf: It is not recommended to mount the cooler with the fittings pointing down as this may create an air pocket in the cooler resulting in reduced cooling efficiency. When mounting the cooler with the fittings on the right or left side, the lower fitting must be the inlet with the top fitting routing the fluid back to the transmission
#24
Supreme Member
Re: 1992 RS 6.0 4L80E Swap
The 4l80e sure is a monster isn't it?
I didn't see anything about a converter so I thought I would chime a suggestion. A converter will make/break the entire swap, as dumb as it sounds, so I felt it necessary to bring this up.
I recommend a high efficiency 9.5" lockup from reputable company such as Yank.
What else can I say? I was able to use a stock Camaro shifter for 4l80e which feels more reliable and simple than anything aftermarket. And cheaper. Just throwing that out there.
HPtuners was also a great investment. Almost immediately made the $$ back unlocking other people's ECU with it. Highly recommend tuning yourself. It will also give you the power of diagnosis from the driver seat. i.e. scanner reads trans temp, wideband info, and logs everything, very handy.
I didn't see anything about a converter so I thought I would chime a suggestion. A converter will make/break the entire swap, as dumb as it sounds, so I felt it necessary to bring this up.
I recommend a high efficiency 9.5" lockup from reputable company such as Yank.
What else can I say? I was able to use a stock Camaro shifter for 4l80e which feels more reliable and simple than anything aftermarket. And cheaper. Just throwing that out there.
HPtuners was also a great investment. Almost immediately made the $$ back unlocking other people's ECU with it. Highly recommend tuning yourself. It will also give you the power of diagnosis from the driver seat. i.e. scanner reads trans temp, wideband info, and logs everything, very handy.
#25
Re: 1992 RS 6.0 4L80E Swap
The 4l80e sure is a monster isn't it?
I didn't see anything about a converter so I thought I would chime a suggestion. A converter will make/break the entire swap, as dumb as it sounds, so I felt it necessary to bring this up.
I recommend a high efficiency 9.5" lockup from reputable company such as Yank.
What else can I say? I was able to use a stock Camaro shifter for 4l80e which feels more reliable and simple than anything aftermarket. And cheaper. Just throwing that out there.
HPtuners was also a great investment. Almost immediately made the $$ back unlocking other people's ECU with it. Highly recommend tuning yourself. It will also give you the power of diagnosis from the driver seat. i.e. scanner reads trans temp, wideband info, and logs everything, very handy.
I didn't see anything about a converter so I thought I would chime a suggestion. A converter will make/break the entire swap, as dumb as it sounds, so I felt it necessary to bring this up.
I recommend a high efficiency 9.5" lockup from reputable company such as Yank.
What else can I say? I was able to use a stock Camaro shifter for 4l80e which feels more reliable and simple than anything aftermarket. And cheaper. Just throwing that out there.
HPtuners was also a great investment. Almost immediately made the $$ back unlocking other people's ECU with it. Highly recommend tuning yourself. It will also give you the power of diagnosis from the driver seat. i.e. scanner reads trans temp, wideband info, and logs everything, very handy.
#26
Supreme Member
iTrader: (9)
Re: 1992 RS 6.0 4L80E Swap
i used a B&M megashifter made for a thirdgen with a 4L80E i installed in a 1972 camaro. it worked perfect so i suspect the stock 700R4 shifter cable and bracket from a thirdgen may work with the 4L80E. that's what i intended to do with my swap, but i haven't got that far yet to try it out.
#27
Supreme Member
Re: 1992 RS 6.0 4L80E Swap
Here are some pics from the build. I think its a 4th gen shifter, probably a v6 camaro unit.
Slotted the bolt holes for the bracket as pictured, bracket is either from 4l80e stock unit or the 4l60e unit.
The shifter 'ball' (linkage on the trans) was the large one also from V6 I believe. I went to JY and grabbed a variety but the large one fit the shifter so...
personally I do not like aftermarket shifters for a variety of reasons. I've owned in the past and never really fond of the ratchet style (more work) or anything that looks fancy/flashy (you can look inside the car and say 'ah, its modified') this way with the OEM shifter nobody can tell you've done anything.
No reason to touch the shifter while driving- I prefer let it shift by itself because A: less chance of human error and B: less fuss, more concentration on the road
With HP tuners you can configure two different shift maps. So if I want it to hold 1st longer or shift harder or not downshift sometimes, instead of downshifting the trans I just smack the momentary switch and it flips to another map with all new shift MPH and pressures/torque mgmnt.
Last edited by Kingtal0n; 10-25-2018 at 04:16 PM.
#28
Re: 1992 RS 6.0 4L80E Swap
had some time to modify the factory truck lq4 dbw gas pedal to fit. I originally purchased the mounting bracket made by Hawks thinking it would make things easy. Turns out their adapter is not for the truck pedals, so modifying was the only way to go. pics to come
Last edited by irishhockey34; 10-28-2018 at 05:22 PM.
#30
Senior Member
Re: 1992 RS 6.0 4L80E Swap
Oh I was looking over your trans cooler again, did your car have the X braces on the radiator opening in the core support and if so what were you doing about them? My Z has them but I wonder if they are really a big deal?
#31
Re: 1992 RS 6.0 4L80E Swap
I decided to remove them. I also had to remove some of the air deflecting plastic that surrounded the cross braces to fit the trans cooler. Not sure how much they were doing, but I have a wonderbar installed and will have a strut tower brace also, which should really stiffen the front up. Not really worried about the original cross braces.
#32
Re: 1992 RS 6.0 4L80E Swap
used a standard b&m megashifter on my 4L85E, the fittings bolt straight upto the oilpan bolts. so would think standard 700R4 cable and bracket would fit (already had megashifter in car with 700R4 before swap)
#33
Supreme Member
Join Date: Jun 2002
Location: North East GA
Posts: 2,221
Likes: 0
Received 44 Likes
on
40 Posts
Car: 1989 Firebird
Engine: 5.7 LS1
Transmission: T56
Re: 1992 RS 6.0 4L80E Swap
Nice progress... its amazing how quickly an engine swap turns into a mini-restoration I.E. see my thread on my LS1/t56 swap
#35
Re: 1992 RS 6.0 4L80E Swap
also decided to rework the lq4 wiring harness to allow the pcm to be mounted in factory location. the lq4 has the pcm mounted in the drivers side front engine bay, so quite a bit of wire needed to be added to get enough length to follow the factory harness routing around the passenger fender and under the dash. it took forever but end result should be nice
#40
Re: 1992 RS 6.0 4L80E Swap
https://www.dirtydingo.com/shop/prod...oducts_id=1370
this kit allows for a truck balancer / truck alternator / truck ps pump to all be reused. I went with a ls1 style water pump, so I also had to purchase their water pump spacers to push the pump out to align with the truck belt arrangement. Overall fitment and quality is excellent. No complaints at all. Even allows for factory 3rd gen PS pressure hose to be reused without modification.
this kit allows for a truck balancer / truck alternator / truck ps pump to all be reused. I went with a ls1 style water pump, so I also had to purchase their water pump spacers to push the pump out to align with the truck belt arrangement. Overall fitment and quality is excellent. No complaints at all. Even allows for factory 3rd gen PS pressure hose to be reused without modification.
#41
Supreme Member
Re: 1992 RS 6.0 4L80E Swap
https://www.dirtydingo.com/shop/prod...oducts_id=1370
this kit allows for a truck balancer / truck alternator / truck ps pump to all be reused. I went with a ls1 style water pump, so I also had to purchase their water pump spacers to push the pump out to align with the truck belt arrangement. Overall fitment and quality is excellent. No complaints at all. Even allows for factory 3rd gen PS pressure hose to be reused without modification.
this kit allows for a truck balancer / truck alternator / truck ps pump to all be reused. I went with a ls1 style water pump, so I also had to purchase their water pump spacers to push the pump out to align with the truck belt arrangement. Overall fitment and quality is excellent. No complaints at all. Even allows for factory 3rd gen PS pressure hose to be reused without modification.
#43
COTM Editor
iTrader: (22)
Join Date: Mar 2001
Posts: 9,902
Likes: 0
Received 1,855 Likes
on
1,270 Posts
Car: '89 Firebird
Engine: 7.0L
Transmission: T56
Re: 1992 RS 6.0 4L80E Swap
You really don't want steel braided fuel line rubbing a wire. That s*** cuts everything and electricity grounds to metal. That's a recipe for car going up in flames.
Last edited by QwkTrip; 12-03-2018 at 01:24 AM.
#44
COTM Editor
iTrader: (22)
Join Date: Mar 2001
Posts: 9,902
Likes: 0
Received 1,855 Likes
on
1,270 Posts
Car: '89 Firebird
Engine: 7.0L
Transmission: T56
Re: 1992 RS 6.0 4L80E Swap
And if that is a fuse then it belongs in the engine bay close to the power source, not all the way at the back of the car. The fuse can't protect the wire from shorting between the battery and the fuse.
#45
Re: 1992 RS 6.0 4L80E Swap
thats a racetronix premade fuel pump hotwire harness. the fuse holder is about 1" off of where the main power wire connects to the alternator post. As for the harness being tied to the braided line, I see you concern. However car going into flames may be a bit extreme. I will move it over to the soft fuel line to be safe. BTW, I have used your build thread as a reference throughout my project. Thanks for that!
#47
COTM Editor
iTrader: (22)
Join Date: Mar 2001
Posts: 9,902
Likes: 0
Received 1,855 Likes
on
1,270 Posts
Car: '89 Firebird
Engine: 7.0L
Transmission: T56
Re: 1992 RS 6.0 4L80E Swap
#50
Member
Re: 1992 RS 6.0 4L80E Swap
I'm doing a similar swap (2004 4.8), and I'm wondering how I'm going to get the pedal to fit in the cab, and still feel right when I drive.