yupididit said:
In reply to frenchyd :
Yes suspension at the least; street car.
For the street, you won't like it if you do the stuff I do. One of the great things about Those is how smooth and quiet the ride is while still giving fantastic cornering. Drive a same year Camaro/Firebird and you'll understand what I mean.
The steering is over boosted and as such gives a numb steering feel. It's just a GM power steering pump. So you can swap it around for one you prefer. Or there is a kit that lets you dial the assist to what your preference is.
pres589 (djronnebaum) said:
If he's LS swapping this it doesn't matter. But I do think you're right that it was a 4L80 or 4L80E as a TH-400 + overdrive. Let's see what he ends up doing.
Later Jag's did get nicer wheels like the BBS weaves. Lot of wheel options out there but the Jag bolt pattern and offsets might make the hunt for something different a little harder.
Up until 2000 ish, the Jag bolt pattern is 5x4.75. I've seen corvette wheels on Jags.
Robbie (Forum Supporter) said:
In reply to frenchyd :
I think the GM 4 speed you are referencing is commonly referred to as the 4l80e
You're right of course. I just keep forgetting. Thank you for reminding me.
pres589 (djronnebaum) said:
If he's LS swapping this it doesn't matter. But I do think you're right that it was a 4L80 or 4L80E as a TH-400 + overdrive. Let's see what he ends up doing.
Later Jag's did get nicer wheels like the BBS weaves. Lot of wheel options out there but the Jag bolt pattern and offsets might make the hunt for something different a little harder.
The Jag bolt pattern is the same as Corvette Camaro.
frenchyd said:
In reply to yupididit :
I hope you realize the massive amount of work to do a proper swap. Getting the engine in and running is about 1/10 th of what's required. Pro shops are quoting $20,000 to do a swap.
You can't count on any of the wiring to work and remain working. That's the number one issue. Second will be getting the HVAC working. The Jaguar stuff is obsolete and parts are near impossible to find new. Third instruments will be another major issue if you want them to fit and look proper. It's been done but it's not plug and play sort of work.
The final point is look at what's happening to the XKE price wise. It's the same thing that happened to the XK120-150 the MK7-8-9 the 3.8 sedans etc.
Prices are already on the rise for nice XJS/XJ6/12 here in the states. No where near as high as England but rising steadily.
But it's your car. I'd just hate to see you miss out on that rise.
Oh, if you want any tan leather interior parts let me know. You pay the shipping and they are yours. I'll even box them up.
My first engine swap was a lexus v8 (1uz) into a rwd mitsubishi. There's nothing near a kit for that swap. Certainly a PITA but not too hard.
LS into an XJS has been done plenty of times and there's a kit from Jaguar Specialties that'll make it even more convenient. HVAC, gauges, and wiring - there's basically plug-n-play fixes for that. Don't spread that false info in this thread, please.
In regards to value, if I cared about that then I would've bought a much nicer and costly example. That isn't fun to me.
I do welcome your particular knowledge on suspension, brakes, and rearend.
In reply to pres589 (djronnebaum) :
I do hope to find some used aftermarket wheels off of a Corvette. Wishing to find some CCW's lol.
T56 would be ideal but 6L80 is def high on the list and they fit.
yupididit said:
frenchyd said:
In reply to yupididit :
I hope you realize the massive amount of work to do a proper swap. Getting the engine in and running is about 1/10 th of what's required. Pro shops are quoting $20,000 to do a swap.
You can't count on any of the wiring to work and remain working. That's the number one issue. Second will be getting the HVAC working. The Jaguar stuff is obsolete and parts are near impossible to find new. Third instruments will be another major issue if you want them to fit and look proper. It's been done but it's not plug and play sort of work.
The final point is look at what's happening to the XKE price wise. It's the same thing that happened to the XK120-150 the MK7-8-9 the 3.8 sedans etc.
Prices are already on the rise for nice XJS/XJ6/12 here in the states. No where near as high as England but rising steadily.
But it's your car. I'd just hate to see you miss out on that rise.
Oh, if you want any tan leather interior parts let me know. You pay the shipping and they are yours. I'll even box them up.
My first engine swap was a lexus v8 (1uz) into a rwd mitsubishi. There's nothing near a kit for that swap. Certainly a PITA but not too hard.
LS into an XJS has been done plenty of times and there's a kit from Jaguar Specialties that'll make it even more convenient. HVAC, gauges, and wiring - there's basically plug-n-play fixes for that. Don't spread that false info in this thread, please.
In regards to value, if I cared about that then I would've bought a much nicer and costly example. That isn't fun to me.
I do welcome your particular knowledge on suspension, brakes, and rearend.
I honestly haven't heard about plug and play fixes for wiring or HVAC. That would sure make ownership a lot easier . Can you help me with sources for those?
I stand by the stock suspension for the street though.
frenchyd said:
yupididit said:
frenchyd said:
In reply to yupididit :
I hope you realize the massive amount of work to do a proper swap. Getting the engine in and running is about 1/10 th of what's required. Pro shops are quoting $20,000 to do a swap.
You can't count on any of the wiring to work and remain working. That's the number one issue. Second will be getting the HVAC working. The Jaguar stuff is obsolete and parts are near impossible to find new. Third instruments will be another major issue if you want them to fit and look proper. It's been done but it's not plug and play sort of work.
The final point is look at what's happening to the XKE price wise. It's the same thing that happened to the XK120-150 the MK7-8-9 the 3.8 sedans etc.
Prices are already on the rise for nice XJS/XJ6/12 here in the states. No where near as high as England but rising steadily.
But it's your car. I'd just hate to see you miss out on that rise.
Oh, if you want any tan leather interior parts let me know. You pay the shipping and they are yours. I'll even box them up.
My first engine swap was a lexus v8 (1uz) into a rwd mitsubishi. There's nothing near a kit for that swap. Certainly a PITA but not too hard.
LS into an XJS has been done plenty of times and there's a kit from Jaguar Specialties that'll make it even more convenient. HVAC, gauges, and wiring - there's basically plug-n-play fixes for that. Don't spread that false info in this thread, please.
In regards to value, if I cared about that then I would've bought a much nicer and costly example. That isn't fun to me.
I do welcome your particular knowledge on suspension, brakes, and rearend.
I honestly haven't heard about plug and play fixes for wiring or HVAC. That would sure make ownership a lot easier . Can you help me with sources for those?
I stand by the stock suspension for the street though.
Its been posted in many threads on the Jaguar forums. Threads where you made the same claims. I found the sources because they were posted as a rebuttal to your post over there. LoL. Come on let's not start that in this thread. Thanks
What Jaguar cars can I steal the outboard setup from? And what do I need to do help it keep up with 700+ horsepower?
In reply to yupididit :
If you want the positraction you need to get it from an XJS. (6-12) anything post restyle will have the outboard.
700 hp and how much weight? In what sort of event? Drag race? Probably won't happen. The IRS squats and toes out under acceleration. The toe out can be dealt with but you will not like the car if you do it. The squat part could be dealt with by replacing the shock with a sold bar. Same thing.
FMB42
Reader
3/16/21 2:32 p.m.
Worked on a similar XJ back in the early 90s (at an independent repair shop). It was a SBC conversion tho. That XJ was my first chance to drive a Jaguar. And it sure did live up to Jag 'hype' that a few older techs told me about over the years. A driver's car to be sure. My dad had a late '80s XJ 6 cyl but he knew better than to let me drive it...
Super cool car you've got there.
In reply to frenchyd :
Not doing any weight reduction. Texas mile would be about the only event I'll throw it in.
jgrewe
Reader
3/16/21 2:59 p.m.
I just spent a week or so doing transmission research for my swap(build thread to come). I was loving the idea of a 6L80E until I saw what they were going for and the only stand alone controller I could find was about $1000. I'm going with a 4L80E and if I need more gears I'll get a Gear Vendors OD unit. If you can find the right donor vehicle the 6L80E would be cool though.
My BIL's dad did a Corvette 350 swap in an XJ12 back in the early eighty's. He had spent months gathering all the correct Jag parts to rebuild the 12cyl, got it all done and back in the car. He got tired of working on it every time he wanted to drive it and yanked it back out after about 6 months.
In reply to yupididit :
OK. For that application may I suggest you replace the 4 rubber rear carrier mounts Moss Motors seems to have good ones.
Then replace the the rubber drag links mounts. Again from Moss Motors. Personally I'd avoid the dealership for parts. Also replace the front subframe rubber. The ones you have are most likely 36 years old. Probably still OK but I've seen some weird alignment issues fix by replacing those. Don't forget to check the rear hub grease. It's usually ok but it's only a few minutes to check. ( pop that little dome cap off and look down in there). If you see the tops of the bearings, look further. You may have a seal going out. ( check the replacement rear end before you buy it).
Personally I'd use the existing rear end for the Texas Mile. Higher top speed. If you are interested in the cost of driving leave that rear end in. It will get better mileage. Go to the newer one for acceleration.
This thread is gold. Not slap a turbo truck motor in that thing ASAP.
FMB42
Reader
3/16/21 6:14 p.m.
It's a Jag. Nothing more need be said. And I'm not seeing that big spacious room for anything and everything garage. Nope, not seeing it.
I'll like to add that Patrick is the one that put me onto this car.
Before I wanted to tbi350 a 928 I wanted to carb SB an XJS.
Please make this awesome with an LS.
Then race a V12.
In reply to yupididit :
In reply to yupididit :
If you want the positraction you need to get it from an XJS. (6-12) anything post restyle will have the outboard.
I might be missing something in hes reply about posi. It is a XJS, isn't it?
In reply to 03Panther :
I think he left out the year range
Your car may already have posi, right? Easy to check when you've got the car in front of you at least.
In reply to 03Panther :
All XJS are supposed to have positraction 6 cylinder or 12. Post restyle the brakes are outboard.
The sedans it's hit and miss. Some have it some don't. Most of the ones that have it will be 12 cylinders. But I've found many exceptions over the years.
The check is Jack it up by the center and spin one wheel. If the other turns the same way that's positraction if it turns the opposite it's not.
yupididit said:
In reply to 03Panther :
I think he left out the year range
From 1962 - 1997 ( that I know of). I haven't followed anything newer.
For some reason I thought Jag had used something else that was very metric for the bolt pattern on these things. Chevy's 5-bolt pattern does provide a lot of options. Probably a few different C4 Corvette wheels would look good on this, like the early 16" directional wheels that came out when the C4 debuted. Lots of options if most to all C4 wheels fit.
I would imagine just getting the tire sidewall reduced would tighten up the handling on these in a noticable way without hurting ride quality too much.
