LSD details... - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

*sykikchimp* · 07-02-2002, 08:34 AM

What is the difference b/w a 1-way, 1.5-way and 2-way Differential?  I have an idea but need clarification.

(I'm thinking about picking up a cusco LSD but wondering which would be better for me.  1-way, or 2-way.)

uiuc240 · 07-02-2002, 08:48 AM

1-way = locked on acceleration
1.5-way = locked on acceleration and partial lock on decel
2-way = locked on accel and decel

the locking amount depends on breakaway torque (the amount of torque needed to turn one wheel in opposition to another).  the higher the breakaway, the longer your car will stay locked in turns, which makes sharp turns more difficult, but drifting much easier.  the VLSD for example only has a breakaway of 30 ft-lbs.  a KAAZ/Nismo is adjustable by adding clutch disks, but the factory breakaway is in the 100 ft-lbs region.  can't remember exactly.  oh, and the 2-way is a little bit strange at times because it will keep the wheels locked on deceleration, which means that on the brakes in a tight turn, your inside rear tire is going to be scrubbing like mad.  once again, good for drift and track stuff...kinda strange on the street.  the 1.5-way is like a 2-way only the decel breakaway is much less.

does that sum it up??   <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/cool.gif" border="0" valign="absmiddle" alt='

'>

Eric

hurleyboi514 · 07-02-2002, 09:03 AM

my advice?  go find a friend w/ a copy of GT3 and buy your car, set it up similarly, and then try the 3 different diffs.  i personally like the 1.5 best.

*sykikchimp* · 07-02-2002, 11:09 AM

thanks eric.  that helped a lot. <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/smile.gif" border="0" valign="absmiddle" alt='

'>

TheTimanator · 07-02-2002, 11:28 AM

I was wondering the same thing.  Thanks! Someone should put this in the FAQ.

uiuc240 · 07-02-2002, 12:35 PM

</span><table border="0" align="center" width="95%" cellpadding="3" cellspacing="1"><tr><td>Quote (sykikchimp @ July 02 2002,12:09)</td></tr><tr><td id="QUOTE">thanks eric. that helped a lot. <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/smile.gif" border="0" valign="absmiddle" alt='

'></td></tr></table><span id='postcolor'>
you're welcome.  i learned a lot of that stuff from some 510 racers two weekends ago at blackhawk farms (mostly about breakaway torque).  feel free to copy/paste into the FAQ  <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/wink.gif" border="0" valign="absmiddle" alt='

'>

Eric

07-02-2002, 08:34 AM	#1
sykikchimp WOW addicted Join Date: Dec 2001 Location: the moon Age: 40 Posts: 6,518 Trader Rating: (0) Feedback Score: 0 reviews	What is the difference b/w a 1-way, 1.5-way and 2-way Differential?  I have an idea but need clarification. (I'm thinking about picking up a cusco LSD but wondering which would be better for me.  1-way, or 2-way.) __________________

07-02-2002, 08:48 AM	#2
uiuc240 Nissanaholic! Join Date: Apr 2002 Location: Naperville, IL Age: 42 Posts: 2,093 Trader Rating: (0) Feedback Score: 0 reviews	1-way = locked on acceleration 1.5-way = locked on acceleration and partial lock on decel 2-way = locked on accel and decel the locking amount depends on breakaway torque (the amount of torque needed to turn one wheel in opposition to another).  the higher the breakaway, the longer your car will stay locked in turns, which makes sharp turns more difficult, but drifting much easier.  the VLSD for example only has a breakaway of 30 ft-lbs.  a KAAZ/Nismo is adjustable by adding clutch disks, but the factory breakaway is in the 100 ft-lbs region.  can't remember exactly.  oh, and the 2-way is a little bit strange at times because it will keep the wheels locked on deceleration, which means that on the brakes in a tight turn, your inside rear tire is going to be scrubbing like mad.  once again, good for drift and track stuff...kinda strange on the street.  the 1.5-way is like a 2-way only the decel breakaway is much less. does that sum it up??   <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/cool.gif" border="0" valign="absmiddle" alt=''> Eric __________________ 2002 Mazda Protege5 1989 S13 w/SR20DET (sold)

07-02-2002, 09:03 AM	#3
hurleyboi514 Zilvia Addict Join Date: Mar 2002 Location: The Fort Posts: 905 Trader Rating: (0) Feedback Score: 0 reviews	my advice?  go find a friend w/ a copy of GT3 and buy your car, set it up similarly, and then try the 3 different diffs.  i personally like the 1.5 best. __________________ HighTach Motorsports

07-02-2002, 11:09 AM	#4
sykikchimp WOW addicted Join Date: Dec 2001 Location: the moon Age: 40 Posts: 6,518 Trader Rating: (0) Feedback Score: 0 reviews	thanks eric.  that helped a lot. <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/smile.gif" border="0" valign="absmiddle" alt=''> __________________

07-02-2002, 11:28 AM	#5
TheTimanator Post Whore! Join Date: Apr 2002 Location: Nashville Age: 38 Posts: 2,535 Trader Rating: (1) Rides Gallery: TheTimanator Feedback Score: 1 reviews	I was wondering the same thing.  Thanks! Someone should put this in the FAQ. __________________ 89 S13 hatch/////98 Subaru 2.5RS

07-02-2002, 12:35 PM	#6
uiuc240 Nissanaholic! Join Date: Apr 2002 Location: Naperville, IL Age: 42 Posts: 2,093 Trader Rating: (0) Feedback Score: 0 reviews	</span><table border="0" align="center" width="95%" cellpadding="3" cellspacing="1"><tr><td>Quote (sykikchimp @ July 02 2002,12:09)</td></tr><tr><td id="QUOTE">thanks eric. that helped a lot. <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/smile.gif" border="0" valign="absmiddle" alt=''></td></tr></table><span id='postcolor'> you're welcome.  i learned a lot of that stuff from some 510 racers two weekends ago at blackhawk farms (mostly about breakaway torque).  feel free to copy/paste into the FAQ  <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/wink.gif" border="0" valign="absmiddle" alt=''> Eric __________________ 2002 Mazda Protege5 1989 S13 w/SR20DET (sold)

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