2006 IS250 LS1 Swap
06-24-13, 04:39 PM
#136
I'm not planning on it. If I went automatic, there would have been room for the ABS control unit but I needed the space for the clutch master cylinder and reservoir. I also reviewed the wiring manual and it look like the ABS unit gets a few signals from the engine ECU so I am not convinced that it would function properly even if I left it in.
I guess I'll have to leave a little extra room in front of me when I drive in the rain. I also won't have any traction control to start out with so that should be fun. Holley makes a module for a few hundred buck that I may add on depending on the drivability without it.
Just ordered my driveshaft and all the pieces to my exhaust system today so come next weekend I should have some good progress to post.
I guess I'll have to leave a little extra room in front of me when I drive in the rain. I also won't have any traction control to start out with so that should be fun. Holley makes a module for a few hundred buck that I may add on depending on the drivability without it.
Just ordered my driveshaft and all the pieces to my exhaust system today so come next weekend I should have some good progress to post.
06-26-13, 05:18 AM
#139
I'm not planning on it. If I went automatic, there would have been room for the ABS control unit but I needed the space for the clutch master cylinder and reservoir. I also reviewed the wiring manual and it look like the ABS unit gets a few signals from the engine ECU so I am not convinced that it would function properly even if I left it in.
I guess I'll have to leave a little extra room in front of me when I drive in the rain. I also won't have any traction control to start out with so that should be fun. Holley makes a module for a few hundred buck that I may add on depending on the drivability without it.
Just ordered my driveshaft and all the pieces to my exhaust system today so come next weekend I should have some good progress to post.
I guess I'll have to leave a little extra room in front of me when I drive in the rain. I also won't have any traction control to start out with so that should be fun. Holley makes a module for a few hundred buck that I may add on depending on the drivability without it.
Just ordered my driveshaft and all the pieces to my exhaust system today so come next weekend I should have some good progress to post.
06-27-13, 09:56 AM
#141
The Wilwood pedal and clutch master cylinder only cost about $150 for both and I could get the cylinder size that I knew worked for an LS1 clutch. At the time I didn't realize the space constraints were so tight so given the time I spent on the clutch I probably could have justified getting the Lexus clutch. Maybe the next guy will try that out.
06-27-13, 10:29 AM
#142
That's a great question, one that I have been asking myself for a while now. I originally looked for a manual IS250 to use for the swap but they were few and far between. I couldn't find any used parts so I priced out the full clutch system new from Lexus and it was pretty expensive, I think everything would total about $400-$500.
The Wilwood pedal and clutch master cylinder only cost about $150 for both and I could get the cylinder size that I knew worked for an LS1 clutch. At the time I didn't realize the space constraints were so tight so given the time I spent on the clutch I probably could have justified getting the Lexus clutch. Maybe the next guy will try that out.
The Wilwood pedal and clutch master cylinder only cost about $150 for both and I could get the cylinder size that I knew worked for an LS1 clutch. At the time I didn't realize the space constraints were so tight so given the time I spent on the clutch I probably could have justified getting the Lexus clutch. Maybe the next guy will try that out.
06-27-13, 07:26 PM
#143
I did some more work yesterday and received a few shipments.
I got my drive shaft delivered today. I am in no way plugging Performance Shaft Technologies (PST) yet, especially since I don't know if it fits. But as far as customer service goes they are top notch. I sent out the rear flange yoke which arrived at PST on Tuesday and I received my custom length, assembled, and balanced drive shaft today. That is some ridiculously quick turn around time. I should know tomorrow night how it fits.
I also received most of my exhaust components today. I ordered the Flowmaster stainless steel 2.5" U-fit kit so right now it's a bunch of tubes but I have looked at some of the true dual exhausts out there on IS250s and it looks like the kit should give me everything I need to piece together a system.
On the engine side I opted for the Hooker LS Cast Iron Manifolds. I know I won't get the performance of long tube headers but they are still a really nice product and it's really tight on the drivers side due to the steering shaft so this was the next best option to spending $1000+ on custom headers. Maybe I'll upgrade in the future. I also ordered a 2.5" Magnaflow x-pipe. I have not decided on a muffler yet, still doing my research and I am open to suggestions.
Now on to the work. I did a lot of work that doesn't show much in the pictures. I installed 2 firewall gaskets, 1 on the passenger side for the main harness and 1 on the drivers side for the gauges and factory wiring connection.
If you look on the drivers side near the front of the car, you can see where I tied into the factory ECU harness for the starter, fans, and alternator connections. I made a little plastic plate to seal the hole where the engine harness egressed the ECU box and ran my braided loom through the plate.
I also connected almost the entire Holley EFI harness. I was amazed at how well it was laid out. I know I sound like an infomercial but I just really appreciate a well made product. Again, I guess I'll hold out on my full endorsement until I run the engine for a while.
Last thing I did for the night was cut my throttle cable. It was a little long when I first installed it so I cut about 9" off the 36" cable. The cable is pretty abrasive so I also added 2 short sections of heat shrink to the cable where it could possible scrape the intake manifold or fuel rail. I though it came out pretty nice.
There are a lot of parts in my garage, this weekend should be fun.
I got my drive shaft delivered today. I am in no way plugging Performance Shaft Technologies (PST) yet, especially since I don't know if it fits. But as far as customer service goes they are top notch. I sent out the rear flange yoke which arrived at PST on Tuesday and I received my custom length, assembled, and balanced drive shaft today. That is some ridiculously quick turn around time. I should know tomorrow night how it fits.
I also received most of my exhaust components today. I ordered the Flowmaster stainless steel 2.5" U-fit kit so right now it's a bunch of tubes but I have looked at some of the true dual exhausts out there on IS250s and it looks like the kit should give me everything I need to piece together a system.
On the engine side I opted for the Hooker LS Cast Iron Manifolds. I know I won't get the performance of long tube headers but they are still a really nice product and it's really tight on the drivers side due to the steering shaft so this was the next best option to spending $1000+ on custom headers. Maybe I'll upgrade in the future. I also ordered a 2.5" Magnaflow x-pipe. I have not decided on a muffler yet, still doing my research and I am open to suggestions.
Now on to the work. I did a lot of work that doesn't show much in the pictures. I installed 2 firewall gaskets, 1 on the passenger side for the main harness and 1 on the drivers side for the gauges and factory wiring connection.
If you look on the drivers side near the front of the car, you can see where I tied into the factory ECU harness for the starter, fans, and alternator connections. I made a little plastic plate to seal the hole where the engine harness egressed the ECU box and ran my braided loom through the plate.
I also connected almost the entire Holley EFI harness. I was amazed at how well it was laid out. I know I sound like an infomercial but I just really appreciate a well made product. Again, I guess I'll hold out on my full endorsement until I run the engine for a while.
Last thing I did for the night was cut my throttle cable. It was a little long when I first installed it so I cut about 9" off the 36" cable. The cable is pretty abrasive so I also added 2 short sections of heat shrink to the cable where it could possible scrape the intake manifold or fuel rail. I though it came out pretty nice.
There are a lot of parts in my garage, this weekend should be fun.
07-01-13, 05:25 AM
#149
That's a great question, one that I have been asking myself for a while now. I originally looked for a manual IS250 to use for the swap but they were few and far between. I couldn't find any used parts so I priced out the full clutch system new from Lexus and it was pretty expensive, I think everything would total about $400-$500.
The Wilwood pedal and clutch master cylinder only cost about $150 for both and I could get the cylinder size that I knew worked for an LS1 clutch. At the time I didn't realize the space constraints were so tight so given the time I spent on the clutch I probably could have justified getting the Lexus clutch. Maybe the next guy will try that out.
The Wilwood pedal and clutch master cylinder only cost about $150 for both and I could get the cylinder size that I knew worked for an LS1 clutch. At the time I didn't realize the space constraints were so tight so given the time I spent on the clutch I probably could have justified getting the Lexus clutch. Maybe the next guy will try that out.
