Building an IS350 6MT
There are a few things that had to be done inside the cabin as well.
I got the wiring harness almost completely installed before getting the engine back into the car. Still waiting for that fuel line to come in, but it can be installed with the engine in the car (it is holding up installing the intake manifold though). There's definitely a lot less going on in the bay now though!







Jeff
I got the wiring harness almost completely installed before getting the engine back into the car. Still waiting for that fuel line to come in, but it can be installed with the engine in the car (it is holding up installing the intake manifold though). There's definitely a lot less going on in the bay now though!







Jeff
Last edited by Jeff Lange; Dec 13, 2019 at 10:25 AM.
Wooooooohooooooo!!!You really made this swap look very easy Jeff!Bravo again to you my friend!Is it easy for someone to make the wiring by himself ?How can I find all the details of both wiring ?Do you have to change the manual cluster too or it stays?
Congrats again Jeff for doing this
Congrats again Jeff for doing this
Since he is using the same transmission I think he should be able use the current drive shaft, and I know he has an lsd, so i dont think he would replace the differential.
Last edited by mike33; Dec 10, 2015 at 02:35 PM.
I'm mostly keeping the IS250 stuff, but I have changed my differential and gearing previously, so it's not quite the same as the IS250 would be. Europe has different parts than we do for the differential as well I believe. I haven't checked extensively.
I did get my hood label installed! It's very exciting, haha, but it is likely all that will happen today.
No time!

Jeff
I did get my hood label installed! It's very exciting, haha, but it is likely all that will happen today.
No time!
Jeff
Last edited by Jeff Lange; Dec 13, 2019 at 10:26 AM.
Interesting and very good work keep it up
Just wondering if it would it be easier to to swap the is250 MT transmission in a AT is350 or the engine is350 engine in a MT is250 ? Or is it the same amout of work ?
Just wondering if it would it be easier to to swap the is250 MT transmission in a AT is350 or the engine is350 engine in a MT is250 ? Or is it the same amout of work ?
I guess MT transmission has different mounting points as opposed to the is250 engine having same mounting ponts as the is350 engine right ?
It is indeed much easier to swap the engine in an IS250 manual than to swap the transmission in an IS350 auto. The autos have a different centre cockpit to the manual which you'll have to cut away to make space in the auto. Not 100% sure about the mounting points though... pretty sure they're similar.
Correct. The driveline behind the engine is one of the main differences between IS250 MT and IS350 AT, the other being the interior of course.
Trans mounting would likely be okay with the right mount and stuff, but the rear subframe is much different between the two.
Jeff
Trans mounting would likely be okay with the right mount and stuff, but the rear subframe is much different between the two.
Jeff












