Can I Swap an is350 motor into my Is250?
11-14-15 | 12:16 PM
#31
I don't know exactly what the engine is going to end up costing yet. My car is a 2011 with VDIM.
Still, most of the VDIM system is separate from the ECM. I couldn't say with 100% certainty, but I would think, in theory, that you could still do the swap. You wouldn't gain VDIM, but I think the engine computer can likely handle it with or without VDIM. Hard to know for sure though.
Jeff
Still, most of the VDIM system is separate from the ECM. I couldn't say with 100% certainty, but I would think, in theory, that you could still do the swap. You wouldn't gain VDIM, but I think the engine computer can likely handle it with or without VDIM. Hard to know for sure though.
Jeff
11-23-15 | 07:19 AM
#33
Lexus Test Driver
Joined: Apr 2013
Posts: 1,449
Likes: 5
From: NY
The 3.5 will mate up just fine to the AWD transmission so really no need to do a conversion if you dont need to. If you are really worried, just find out how much difference is the IS350 AWD transmission (2011-2013) is from the IS250 AWD transmission is but I am almost positive they are identical minus maybe a few gearing changes
11-23-15 | 11:04 PM
#34
Follow ups to my posts in here can be found here: https://www.clublexus.com/forums/is-...-the-ra62.html
Jeff
Jeff
01-13-16 | 10:04 PM
#38
Lexus Test Driver
Joined: Apr 2015
Posts: 1,085
Likes: 11
From: Texas
A properly set-up nitrous kit is certainly not cheap. Note where I say, "properly set-up." There are numerous safety devices that are part of this and it adds up. This alone would cost you a significant portion of what that setup would cost. Then you combine it with the cost of filling the bottle and the fact that you don't have it on constantly, the 350 engine or a LS-swap is the way to go.
09-11-22 | 11:29 AM
#40
2nd gear
Joined: Sep 2022
Posts: 2
Likes: 0
From: lagos
I’m having troubles
Pls I current have an engine issues with my is350 2009 and now the mechanics said I need to buy a new engine and he said to me the is350 and is250 engine are the same so definitely he’s going to buy the is250 engine, pls If anyone knows where I can buy another is350 engine here Lagos because I know there’s a difference and the horse powers aren’t the same. Pls share me your ideas
09-16-22 | 10:33 AM
#41
Pls I current have an engine issues with my is350 2009 and now the mechanics said I need to buy a new engine and he said to me the is350 and is250 engine are the same so definitely he’s going to buy the is250 engine, pls If anyone knows where I can buy another is350 engine here Lagos because I know there’s a difference and the horse powers aren’t the same. Pls share me your ideas
These are not interchangeable from a wiring, ECU, fueling, electronics standpoint. Will the engine bolt into the car, transmission, YES! Will it ever run, NO! Do not buy a 250 engine for a 350 vehicle. Many want to do a 250 to 350 swap. This is not an easy swap. Do a search D-4S vs port and direct injection. Very different engines.
GL - you'll likely be doing some kind of import or rebuild that one.
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