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Hi Jeff
Just checking in to see how your getting along with the 700R4.
I removed the TH400 and was grateful for the pics you took. I did this by myself so its doable.
I bought a low mileage (38,000) 1995 4-liter XJS Rear End for $1,250 from welsh enterprises to get the 3.54 diff and outboard brakes.
I took the old IRS out and installed the New used IRS. It was easier than removing the transmission. A bit tricky but doable.
I am going with the DM T600 close ratio 5-speed kit $6400 with first gear of 2.87 and a .82 5th.
Bywater at AJ-6 engineering has my ECU in England for the SE-ECU, and TT extractors stainless steel pipes for about $1600
Total for everything is about $9200 with shipping and exchange rates. (5 Speed conversion $9200) - (700R4 $2500) $6700
No labor included.
Its not cheap so I hope I can get it together properly. In case your interested AJ6 has a lead time of 8 to 10 weeks or 4 weeks for ECU upgrades.
The DM has a lead time of about 4 to 6 weeks. I will give my impressions and results when it up and running.
Currently removing shifter, ski slope, wiring harness, shift cable, pedal box, preparing for the Tremec .
Enjoy the Holidays
Chris
Hey Chris, thanks for the information. I've been pinned down with home improvement issues and other car repairs. The XJSC drives well but has fuel system issues i haven't had time to fix yet. The tank has lots of crud in it and three injectors are not firing at idle. I'm hoping to get this sorted over the winter along with getting the speedo to work. No snow yet, but time is slipping.
I Hope you can document your work in a thread for other's benefit also. It would be a great read.
Wow, one year anniversary since I started this thread.
So I have spent most of the spring and early summer pulling the fuel tanks and injectors and cleaning everything. I had 3-4 injectors not firing and filters continually plugging.
I pulled the rail and created a 9v injector test harness and made a way to back and forward flush carb cleaner through all the injectors and called it good It worked well and the engine runs smoothly now.
Injector test harness.
I tried muratic acid to flush the tank and it did pretty well but flash rusted after I rinsed it. I switched to a toilet cleaner with hydrochloric acid and it actually got it even cleaner and after rinsing poured marvel mystery oil in both tanks to prevent the flag rust and it worked pretty well.
Everything is back together and running well. It doesn't burn the tires, but pulls pretty well off the line but REALLY takes off over 2500rpm.
The alternator light is on right now and the voltage drops below 13 on the dash so not sure if the battery is giving up or if I disconnected something on the trunk or what.
Hey Jeff
Glad you got your 700R4 going and the fuel system. I made an injector tester a few years ago when I changed my screens hoses and pintles.
My DM Kit cost a lot more then the 700R4
not to mention the rear end swap for (3.54 diff and out board brakes)
The Bywater ECU mods, and the SS TT extractor exhaust system.
I did all the labor and took my time.
The kit in November and finished in Feb.
I wouldn't say it was easy, but I learned quite a bit.
Was it worth it ? Absolutely!!! Its quick, fast and Fun, Shifts great and has amazing exhaust note.
Hey Jeff
Glad you got your 700R4 going and the fuel system. I made an injector tester a few years ago when I changed my screens hoses and pintles.
My DM Kit cost a lot more then the 700R4
not to mention the rear end swap for (3.54 diff and out board brakes)
The Bywater ECU mods, and the SS TT extractor exhaust system.
I did all the labor and took my time.
The kit in November and finished in Feb.
I wouldn't say it was easy, but I learned quite a bit.
Was it worth it ? Absolutely!!! Its quick, fast and Fun, Shifts great and has amazing exhaust note.
Its the same car as mine. Hear it on youtube
V12 gents Manual Hill Climb
Cheers
Chris
That's great Chris. These can be a blast. You've made some huge improvements there, congrats.
what did you mean by this? What is the same car? How do I hear it?
He has 3 videos Manual hill climb , Engine mods, Exhaust mods
He has done more mods than me.
I have a Tremec 5 speed close ratio
and he has a getrag 5 speed
We both have no mufflers and the sound is great a track car.
Hey Jeff
How's it going?
I don't think the exhaust note is for everyone.
For me the sound adds to the driving experience and competes the drive.
I love it but I may put exhaust cut outs in to have the option silent (OEM) mode.
I did this on my Supercharged XF and with a press of a button I can have my noise.
Cheers
Chris
The car is actually doing really well. It drives great. Good pull of the line, a little tire chirp and pulls very hard to each shift. The 700R4 is a great mod, as is tuning your performance to stock and cleaning your fuel system.
just have to figure out a few annoyances like the alternator, two tires leaking at plugs and the cooling system. It's finally a great car to drive even with all that.
I am glad you are doing well.
That's weird that the plugs are leaking. I would do the tires first, but the cooling system would be the next thing.
Especially if you run it hard 6000rpm shifts. The biggest engine killer is overheating. I put dual electric fans in when I did the water pump
7 years ago. My fans run post shutdown and I have a habit of lifting the hood to remove the heat.
I have and 255/40/18 rears and still get rubber. There is always something to do on these cars. I may swap my old tires to see how they feel.
I use a GM alt where the air pump was and so far so good.
I am glad you are doing well.
That's weird that the plugs are leaking. I would do the tires first, but the cooling system would be the next thing.
Especially if you run it hard 6000rpm shifts. The biggest engine killer is overheating. I put dual electric fans in when I did the water pump
7 years ago. My fans run post shutdown and I have a habit of lifting the hood to remove the heat.
I have and 255/40/18 rears and still get rubber. There is always something to do on these cars. I may swap my old tires to see how they feel.
I use a GM alt where the air pump was and so far so good.
Happy motoring
I like the air pump solution for the alternator. It sure seems like i messed something up with the charging system pulling the tank.
My cooling issue is that it doesn't come up to temp.
The tire plugs are about 15 years old and have been just sitting. I may try fix a flat to see if it plugs it.
Hello. I also bought this kit.You can use your car flywheel. All he do for the flywheel he send you is to drill the holes to fit on your th400 converter.and charge you $200.00 to do so Big deal for him.
Hello. I also bought this kit.You can use your car flywheel. All he do for the flywheel he send you is to drill the holes to fit on your th400 converter.and charge you $200.00 to do so Big deal for him.
I run 190 deg. thermostats with jiggle pins. If your trips are short they may never open. If they are real short, you also may never get into open loop mode. I have had some success with slime for tires in the past.
Cheers
Update, this cable is not easy to find. All the leads suggested above were dead ends. I ended up calling the local dealer and asked them to find a cable at a dealer so I could call and see if they would send it to me. They found three dealers around Iowa that had a cable, 2 in Omaha and 1 in Chicago. Two of the dealers said they won't take a credit card because they've gotten burned, but Woodhouse Chevy Buick sold one to me for $75.
It arrived today so I'm back on track.
I notified John that this will be an issue but haven't heard back. His instructions advise against a universal cable. Something to think about if your considering this swap.
I know this is an older (but still extremely valuable) thread, but as of September 2021 it looks like the OEM 25515598 cable is no longer available. My local dealer says it's NLA and can't find any that have one, and the places online either have an aftermarket listed a the OEM, or can't confirm that they have it in stock.
I know John pushes for the OEM cable but with that no longer being an option, I think the Lokar KD-2700HT is probably the next best option.
I know this is an older (but still extremely valuable) thread, but as of September 2021 it looks like the OEM 25515598 cable is no longer available. My local dealer says it's NLA and can't find any that have one, and the places online either have an aftermarket listed a the OEM, or can't confirm that they have it in stock.
I know John pushes for the OEM cable but with that no longer being an option, I think the Lokar KD-2700HT is probably the next best option.
I had quite a search to find one and had one dealer out of 3 that had one who would ship it to me. Can you post a link to the Lokar one?
This is the transmission end of the ATP Y311, which is the aftermarket version of the 25515598. These can be purchased for about $15. I picked one up to compare it against the Lokar cable.
11-30-2020, 07:53 PM
