Torque or clutch, limit slip differential |
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Torque or clutch, limit slip differential |
Randal |
Dec 30 2010, 12:07 AM
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#1
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Advanced Member Group: Members Posts: 4,446 Joined: 29-May 03 From: Los Altos, CA Member No.: 750 |
I haven't figured it out yet, but my clutch type differential, set to 40% works better than 80%, as it came from the manufacturer.
If I can't control the under-steer in autox's with 40% then maybe it's time for a torque type? What is your experience? |
jjackson |
Dec 31 2010, 12:31 PM
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#2
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Member Group: Members Posts: 219 Joined: 5-October 10 From: maumelle, arkansas Member No.: 12,246 Region Association: None |
We are running a Guard torque biasing unit.Never had the throttle push that is typically associated with clutch type diffs until this year.Six years with no issues.This past year we had corners that the car would just enter into a huge push on throttle-Not all corners though.We took apart unit and found where we had started creating some heat and slight wear.Cleaned up-sanded- and swithed to Swepco Lube per manufacturers recommendation-Have not had any further issues.The reason you like 40 percent setup over 80 it that you can roll on throttle sooner withy less push.J
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J P Stein |
Dec 31 2010, 02:48 PM
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#3
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Irrelevant old fart Group: Members Posts: 8,797 Joined: 30-December 02 From: Vancouver, WA Member No.: 45 Region Association: None |
Less push, eh?
The object is (IMO) NO push. The line tightens in the shitbox as one rolls into the throttle. I like it. (IMG:style_emoticons/default/biggrin.gif) |
brant |
Dec 31 2010, 07:15 PM
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#4
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914 Wizard Group: Members Posts: 11,641 Joined: 30-December 02 From: Colorado Member No.: 47 Region Association: Rocky Mountains |
I'm with JP
the driving line will tighten with the TB as you throttle it took a little getting used to but is really manageable. sometimes you don't want to lift or the car won't make the corner.. so there is a bit of an early 911 style to driving on the limit. You have to floor it to make the corner. I also used to love my locked diff (100%) but this is faster, just different |
J P Stein |
Jan 1 2011, 09:05 AM
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#5
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Irrelevant old fart Group: Members Posts: 8,797 Joined: 30-December 02 From: Vancouver, WA Member No.: 45 Region Association: None |
I went thru the "push in some corners" bit (pre LSD days). The "some" had something in common, they were tighter. As tried to dial it out with the normal tweaks nothin' happened....except to give me wild oversteer in the large radius corners.(IMG:style_emoticons/default/blink.gif)
I fixed it. |
Randal |
Jan 1 2011, 09:42 AM
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#6
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Advanced Member Group: Members Posts: 4,446 Joined: 29-May 03 From: Los Altos, CA Member No.: 750 |
Less push, eh? The object is (IMO) NO push. The line tightens in the shitbox as one rolls into the throttle. I like it. (IMG:style_emoticons/default/biggrin.gif) Really? Wow. |
J P Stein |
Jan 1 2011, 10:56 AM
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#7
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Irrelevant old fart Group: Members Posts: 8,797 Joined: 30-December 02 From: Vancouver, WA Member No.: 45 Region Association: None |
I first heard this in a conversation with Greg Fordahl .....more than a year before I bought one. I tried to buy one from him, it didn't work out......but I didn't forget.
Sure enough, on sweepers there it was and as Brant said, it took some getting used to. You really don't notice it in the tight stuff cases "things" are happening too quick (for me at least). The car is set up for oversteer on hard turn ins (with a bit of trail braking for the 180 cones jobbies) and it is loose in slaloms.....and I have the loops to prove it. (IMG:style_emoticons/default/blink.gif) Therein lies another advantage. The car responds to spring/sway bar/tire pressures adjustments in the classic way. One of the first things that Evo School teaches is to avoid heroic driving measures. It's too hard to pull them off consistently. |
Randal |
Jan 12 2011, 10:56 AM
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#8
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Advanced Member Group: Members Posts: 4,446 Joined: 29-May 03 From: Los Altos, CA Member No.: 750 |
I first heard this in a conversation with Greg Fordahl .....more than a year before I bought one. I tried to buy one from him, it didn't work out......but I didn't forget. Sure enough, on sweepers there it was and as Brant said, it took some getting used to. You really don't notice it in the tight stuff cases "things" are happening too quick (for me at least). The car is set up for oversteer on hard turn ins (with a bit of trail braking for the 180 cones jobbies) and it is loose in slaloms.....and I have the loops to prove it. (IMG:style_emoticons/default/blink.gif) Therein lies another advantage. The car responds to spring/sway bar/tire pressures adjustments in the classic way. One of the first things that Evo School teaches is to avoid heroic driving measures. It's too hard to pull them off consistently. Matt at Guard has a good deal going on now for the torque bias differentials. (IMG:style_emoticons/default/biggrin.gif) |
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