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You would think so, but Rafi didn't seem to indulge much on that idea in my correspondence with him.
If you're talking about the TVD then I doubt there's any way an ISF will EVER be able to control that unit the way the RCF/GSF does... if not then what exactly do you mean tune. The LSD shouldn't require anything 'tune' related.
If you're talking about the TVD then I doubt there's any way an ISF will EVER be able to control that unit the way the RCF/GSF does... if not then what exactly do you mean tune. The LSD shouldn't require anything 'tune' related.
I think he might have been referring to the earlier post about wondering if the higher compression of an RCF motor would be handled by an ISF ECU
If you're talking about the TVD then I doubt there's any way an ISF will EVER be able to control that unit the way the RCF/GSF does... if not then what exactly do you mean tune. The LSD shouldn't require anything 'tune' related.
Definitely not, not my first rodeo here.
Originally Posted by jdmSW20
I think he might have been referring to the earlier post about wondering if the higher compression of an RCF motor would be handled by an ISF ECU
Yup.
I'm tempted to do an RCF non-TVD swap but I wonder if it's the same LSD in the newer ISFs. Also with traction being our only downfall on this car, an aftermarket unit would best suit putting real power to the ground IMO.
If the rear cover swaps over and it's a bolt-in affair, that becomes much more attractive for the ease of a simple swap and go.
If you have to swap carrier units, the labor itself is worthy of an aftermarket LSD considering it requires proper shimming and backlash adjustment of the pinion gear to last properly. Which for most people, is also an added cost at a driveline shop.
I forgot to mention one important thing - as others have said, replacing the OEM spool with the OS Giken did not change the gear tooth pattern or the backlash. Mine was right in the middle of the spec at 0.004", and the tooth engagement was racer perfect - slightly biased toward the toe end. I could not have been happier we did not need to order snap rings or pinion washers and replace parts until it was good.
I would have to think he got lucky. Every pinion and ring is different. I'd highly reccomend anyone who does a carrier swap to get they're pinion depth and backlash checked if you have to do a swap that requires "opening up the guts".
Also, a good point in that thread is pressing out the OE bushings for a figs replacement. It all adds up, but totally worth it.
It is done ladies and gentlemen... the RC-F pumpkin is identical...I bolted my isf rear diff cover right up to the LSD RC-F differential and bolted straight in the car..took about 2hrs total...its late here so I'll post some pics tomorrow if the install
Factory isf open diff coming out
RC-F lsd Diff with isf rear cover attached and old RC-F cover next to it!!
If you do do this.. REMEMBER a T60 Torqs bit for rear 3 mount bolts
Yes it was super easy...hardest part of the whole process was getting my damn borla exhaust off and then putting it back on...
the car is driving just like normal, except it gets side ways really easy, but the traction control is doing some dumb ****...I'll turn in off and have sport mode and manual mode and first gear lights up both tires then it kicks traction control back on and the car stops spinning and bogs down..same thing if I turn it off stomp it as soon as I change to second gear it puts traction control back on... so I'm going to have to figure that **** out... I know the new update to the ECU, you can't 100% throttle and hit the brakes it kills the engine in a safety feature lexus added from stock gas pedals. But this bish will pull a 180 on a two lane road like a boss now🤪🤪🤪😎😎😎
If you do do this.. REMEMBER a T60 Torqs bit for rear 3 mount bolts
Yes it was super easy...hardest part of the whole process was getting my damn borla exhaust off and then putting it back on...
the car is driving just like normal, except it gets side ways really easy, but the traction control is doing some dumb ****...I'll turn in off and have sport mode and manual mode and first gear lights up both tires then it kicks traction control back on and the car stops spinning and bogs down..same thing if I turn it off stomp it as soon as I change to second gear it puts traction control back on... so I'm going to have to figure that **** out... I know the new update to the ECU, you can't 100% throttle and hit the brakes it kills the engine in a safety feature lexus added from stock gas pedals. But this bish will pull a 180 on a two lane road like a boss now🤪🤪🤪😎😎😎
Are you actually doing the long press to disable TC?
04-17-18, 08:31 AM
