Building an IS350 6MT
08-24-16, 05:33 AM
#256
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awesome, well done I am considering of doing the same, but as I have an '06 is250 Manual without VDIM I am thinking of using a short block (2grfse) and use my current 4grfse cylinder heads. that way I avoid the D4-S headache and use the same injectors from the old motor instead of swopping the complete motor over and sitting with the VDIM electronics and Christmas tree cluster problem
08-26-16, 02:25 PM
#257
I had considered multiple options from using 4GR-FSE or 3GR-FSE heads on a 2GR-FSE block or even using the 2GR-FSE complete and removing the port injectors from the lower intake runners, etc., I had looked at various electronics solutions to that as well, but ultimately decided that it was actually more of a hassle than just getting the D4-S working. Looking back on it now, I'm still someone sure on that, but not 100%. There is more than one way to skin a cat as they say.
After a recent road trip to Pikes Peak and other roads in the USA, I was chasing a brake pulsation (that ended up being a combination of 2 issues, front and rear), I decided to change out the rear brakes for the larger vented type and the better matched piston size with the larger front brakes I had already installed.
After all of this, I feel like I spent a lot of time trying to get things working and looking like it came this way from the factory, which makes it all the more amusing that I am now forced to run in SM class when I autocross, lol.
Jeff
After a recent road trip to Pikes Peak and other roads in the USA, I was chasing a brake pulsation (that ended up being a combination of 2 issues, front and rear), I decided to change out the rear brakes for the larger vented type and the better matched piston size with the larger front brakes I had already installed.
After all of this, I feel like I spent a lot of time trying to get things working and looking like it came this way from the factory, which makes it all the more amusing that I am now forced to run in SM class when I autocross, lol.
Jeff
Last edited by Jeff Lange; 08-26-16 at 02:30 PM.
09-02-16, 12:09 AM
#259
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hi Jeff a quick question I am looking at doing the same on my 2006 model did you use the 2grfse injector driver (8987153010)? I am considering doing the swap using an old north American spec is350 ecu without vdim pre-2008 (8966153780/1)just need to find a way to cancel the atm on ecu
09-02-16, 02:52 AM
#260
hi Jeff a quick question I am looking at doing the same on my 2006 model did you use the 2grfse injector driver (8987153010)? I am considering doing the swap using an old north American spec is350 ecu without vdim pre-2008 (8966153780/1)just need to find a way to cancel the atm on ecu
09-06-16, 12:38 PM
#264
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Which, of course, they never did. Which is sad... 
09-06-16, 02:33 PM
#265
That's awesome! lOve it.
09-10-16, 09:25 AM
#267
hi Jeff a quick question I am looking at doing the same on my 2006 model did you use the 2grfse injector driver (8987153010)? I am considering doing the swap using an old north American spec is350 ecu without vdim pre-2008 (8966153780/1)just need to find a way to cancel the atm on ecu
Jeff
10-25-16, 08:06 PM
#270
Wow. Bravo. I had no idea this was going on right down the street in Calgary. I just bought my 2006 IS350 in Calgary last week, all of it's service done at Country Hills Toyota. Doesn't happen to be your work place does it? I'm heading down to pick up a bumper there soon, I could swing in with a Tims for you and see about getting my service history. lol.
So I'm guessing this was all done before tuning was available? Now that you can tune the ECU, I would think this swap would be a lot easier for someone else. Just use the 250 ECU and have it tuned with the fuel trims of the tune that's out for the IS350. Then all your driveline electronics can function without issue. Any reason this couldn't be done?
Also, any reason you kept the stock IS250 transmission? Based on the way you did the swap, I'm guessing cost wasn't a big factor. From a cost perspective it would make more sense to swap a transmission into a 350, then a 350 engine into a 250. Unless a guy could get a smoking deal on a 350 engine, they are not cheap from what I have found. Anywho, if the big worry about the 250 trans is that it can't handle the torque of the 350, it would be cool to see someone swap in a V160 or something. But I suppose it really boils down to the owners skills. I'd be comfortable just fabbing the required mounting for a different transmission. But if someone is just paying shop labour to swap parts, then it makes more sense to stick with stock stuff to keep labour costs down.
So I'm guessing this was all done before tuning was available? Now that you can tune the ECU, I would think this swap would be a lot easier for someone else. Just use the 250 ECU and have it tuned with the fuel trims of the tune that's out for the IS350. Then all your driveline electronics can function without issue. Any reason this couldn't be done?
Also, any reason you kept the stock IS250 transmission? Based on the way you did the swap, I'm guessing cost wasn't a big factor. From a cost perspective it would make more sense to swap a transmission into a 350, then a 350 engine into a 250. Unless a guy could get a smoking deal on a 350 engine, they are not cheap from what I have found. Anywho, if the big worry about the 250 trans is that it can't handle the torque of the 350, it would be cool to see someone swap in a V160 or something. But I suppose it really boils down to the owners skills. I'd be comfortable just fabbing the required mounting for a different transmission. But if someone is just paying shop labour to swap parts, then it makes more sense to stick with stock stuff to keep labour costs down.