IS F (2008-2014) Discussion topics related to the IS F model

2010 IS-F LSD Differential into 2008 IS-F. Completed. *Pics*

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Old 12-10-12, 06:09 PM
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UCrazyKid
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This is so awesome. Good work. Any issues with the electronics interfering with the mechanical LSD? Do you have to keep VSC and TRAC off all the time?
Old 12-11-12, 06:57 AM
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Gearbangin
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Unless you track your car do you notice a difference?
Old 12-11-12, 08:07 AM
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Update: Took the car to the dealership to have the oil changed and the "new" rear diff leak looked at. The rear diff cover is going to need to come off and be resealed. It apparently was not sealed well from the factory and was leaking at the bottom right between cover and case.

For those of you who are putting used differentials in, this might be something you want to do before you put the diff in the car. Also, you might want to buy some axle seals and a new pinion seal and put those in at the same time....do it right and do it once.
Old 12-11-12, 08:27 AM
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Originally Posted by UCrazyKid
This is so awesome. Good work. Any issues with the electronics interfering with the mechanical LSD? Do you have to keep VSC and TRAC off all the time?
No issues at all with the electronics, the differential works faster than the E-LSD can. I do not have to keep the VSC/TRAC off, although I always drive with them off unless it is snowing/raining hard or I have my child/wife in the car.

I have not tried driving with using the "Pedal Dance" Method (as its referred to on the forums), that will turn off the E-LSD completely. Mind you that I am still on my summer Bridgestones in 40 degree weather..so its pretty fun so far

Information Regarding Traction Control Disable in our cars:
https://www.clublexus.com/forums/is-...t-results.html

Last edited by MisterSkiz; 12-11-12 at 08:34 AM.
Old 12-11-12, 08:36 AM
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MisterSkiz
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Originally Posted by Gearbangin
Unless you track your car do you notice a difference?
You bet you do, especially in spirited daily driving.

The car is more predictable and more controllable. Gone is the inside wheel peeling and then all of the sudden having the car turn around on you. It gradually gets sideways and you can control it easily.
Old 12-11-12, 11:41 AM
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Joe Z
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Congrats.....

This one is still on my "bucket list" too ...


~ Joe Z
Old 12-11-12, 12:07 PM
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MisterSkiz
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Originally Posted by Joe Z
Congrats.....

This one is still on my "bucket list" too ...


~ Joe Z
Do it, its fun! Next thing I might do is purchase one of your intake tubes and then next spring the car is getting 245 front and 255 rear tires on it to even it out. I'm done with extensively modifying cars....
Old 12-11-12, 02:46 PM
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ISFpat
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Originally Posted by Joe Z
Congrats.....

This one is still on my "bucket list" too ...


~ Joe Z
please answer your PM's!
Old 12-11-12, 05:00 PM
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zapa
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God i have been looking for one forever how do you all keep finding them....
Old 12-12-12, 04:48 AM
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MisterSkiz
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Originally Posted by zapa
God i have been looking for one forever how do you all keep finding them....
This is pretty cool, how do I get a 10+ diff?
"Compthis" is the only other member that I know that has done this mod. He gave me a line to a brand new 2010 IS-F differential that was in a junkyard in Niagra Falls, NY. Check http://car-part.com/ and look for "Carrier" (I was looking for "differential" and not finding anything). You can also purchase a unit for ~5,000 from the dealer....
Old 12-13-12, 06:04 AM
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^^^ ME TOO ME TOO, ha jk. What fluid did you use in the lsd carrier? cant be the same as what goes in the e-lsd. What is recommended in the 2011 user manual for rear diff fluid. any 2010-12'ers chime in out there.
Old 12-13-12, 06:45 AM
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jpvarghese
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Great writeup. I hope you don't take this offensively, but is all that rusting underneath the car, normal?
Old 12-13-12, 09:02 AM
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Joe Z
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Originally Posted by darbs242
^^^ ME TOO ME TOO, ha jk. What fluid did you use in the lsd carrier? cant be the same as what goes in the e-lsd. What is recommended in the 2011 user manual for rear diff fluid. any 2010-12'ers chime in out there.
Any Synthetic 75w90 LSD GL-5 Gear oil ... Approx 1.45 qts...

Will work perfectly fine with the Torsen LSD unit.





If it were a clutch driven LSD, I would then recommend different (more expensive) stuff.

~ Joe Z
Old 12-13-12, 09:09 AM
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Originally Posted by jpvarghese
Great writeup. I hope you don't take this offensively, but is all that rusting underneath the car, normal?

Very normal for East Coast driven cars.... (and other cold wintery climates)

Salt / Sand for the winter roads does a nice number to the undercarriage of just about any car in those regions..


~ Joe Z
Old 12-13-12, 12:36 PM
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MisterSkiz
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Originally Posted by jpvarghese
Great writeup. I hope you don't take this offensively, but is all that rusting underneath the car, normal?
Yup for Chicago land it is...nothing but salt all winter..it still rusts even if you try to wash it off.
Its just surface rust..its not hurting anything.


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