AudiWorld Forums: Here is an interesting discussion on the Torsen. Says it is 75/25 but do to frictional losses closer

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Here is an interesting discussion on the Torsen. Says it is 75/25 but do to frictional losses closer

Posted by: yippers on 2002-04-06 20:15:22
Account #: 19399

In Reply to: Mininum split for this type of system is 2.5:1. I know the stock max bias is 25/75 posted by dingster on 2002-04-06 20:03:53

to 71/29 .. I have no idea if this guy just talks a good game but he reads pretty knowledgeable to me.

http://forums.audiworld.com/9080/msgs/13432.phtml

Thread:

Hair's breadth from pulling the trigger on the Stasis diff mod - engineer types please comment..... - markbradford 2002-04-06 18:24:49 (1323 views)

Ok, here's my comments (long!).... - Corey S 2002-04-08 13:00:18 (554 views)

that is one of the most amazing posts I've ever read......nice work...... - djnelsen 2002-04-08 21:33:20 (206 views)

Dan - you woulnd't notice it except when powering HARD out of turns and the car pushes.... - markbradford 2002-04-08 21:45:58 (191 views)

Thanks.......any thoughts on the supposedly-fatigue-susceptible Bilsteins? - djnelsen 2002-04-08 22:11:14 (120 views)

Bilsteins are actually one of the longest lasting shocks out there - dingster 2002-04-08 22:19:02 (167 views)

Mine have been solid, and I haven't heard that rep before. Time will tell I guess. - markbradford 2002-04-08 22:16:44 (125 views)

How many miles on 'em?....Dope sig, by the way...one of the more creative I've seen. - djnelsen 2002-04-08 22:34:27 (109 views)

So far prolly only about 3000 miles or so. - markbradford 2002-04-09 06:12:41 (95 views)

Finally an opinon I can trust. Thanks Corey! - markbradford 2002-04-08 14:36:22 (99 views)

What are you running for suspension? Just curious - DustysA4 2002-04-08 15:04:35 (81 views)

Neuspeed adjustable perch Bilsteins and Vortrag Hyperco 450F/500R springs. - markbradford 2002-04-08 15:35:58 (137 views)

Hehehe. Sorry, we were at Thunderhill all weekend. :-) - Corey S 2002-04-08 15:03:29 (80 views)

Mark, here is a Torsen white paper... - Kirk 2002-04-07 06:19:51 (245 views)

nice, i cant find it on thier site anywhere tho :( - CharlieGSanD 2002-04-06 20:46:24 (140 views)

It's not on their site...that's an excerpt from an email Sonja sent me at Stasis - James R. 2002-04-06 23:53:35 (132 views)

In principle, it's in the right direction, but ... - ryoung 2002-04-06 20:04:18 (519 views)

good points....but let's remember that you're in an S8, right?....... - djnelsen 2002-04-07 00:37:18 (153 views)

Also a front engined, nose heavy awd vehicle - dingster 2002-04-07 08:44:50 (188 views)

Corner exit? ... - ryoung 2002-04-07 09:41:46 (169 views)

Here are some of Sharon and CoreyS's S4 - dingster 2002-04-07 11:37:18 (294 views)

i like that hood :) - CharlieGSanD 2002-04-07 12:19:45 (169 views)

You said rad. - markbradford 2002-04-07 03:18:19 (90 views)

Wouldn't the fact that you're not losing traction in the rear, despite having only one wheel... - markbradford 2002-04-06 20:14:17 (186 views)

Well ... - ryoung 2002-04-06 20:25:48 (173 views)

It would help........ - markbradford 2002-04-06 20:28:31 (149 views)

I'm not sure ... - ryoung 2002-04-06 20:36:44 (140 views)

If you're on the throttle and the car is pushing, the the Torsen would send more to the rear. - markbradford 2002-04-06 20:38:10 (101 views)

Well it's mostly because weight is transfered back - dingster 2002-04-06 20:31:33 (130 views)

Well here's the thing...... - markbradford 2002-04-06 20:34:43 (154 views)

putting power down to the ground wont be an issue. its just a matter of GOING IN hotter into a turn - WYSIWYG 2002-04-06 20:38:03 (101 views)

I want to be able to steer with the throttle more. - markbradford 2002-04-06 20:42:49 (96 views)

like a rear wheel drive you mean? well, dont forget you have quattro - you drift - WYSIWYG 2002-04-06 20:47:20 (158 views)

Yes, but I'd like to be able to induce rotation solely with the right pedal. - markbradford 2002-04-06 20:49:24 (140 views)

Well let's not ignore one simple fact, this IS the same ratio the RS4 uses - James R. 2002-04-06 21:15:47 (153 views)

missed my setup with the k04 =) it can loose traction on the rear giving you atleast 2 tail swings - WYSIWYG 2002-04-06 21:08:19 (130 views)

This can get very dicey ... - ryoung 2002-04-06 21:02:58 (148 views)

Re: Yes, but I'd like to be able to induce rotation solely with the right pedal. - dingster 2002-04-06 20:57:23 (152 views)

Well - dingster 2002-04-06 20:55:47 (128 views)

umm your pic and your sig has the same 'wheel lift' - WYSIWYG 2002-04-06 20:11:02 (99 views)

I'll get the same result from installing an S4 6 speed, right? ;-) - UROTRASH 2002-04-06 19:31:12 (122 views)

This is a CENTER diff mod, not a tranny mod. Adjusts fore-aft torque bias. - markbradford 2002-04-06 19:49:24 (121 views)

drooll..... - djnelsen 2002-04-06 18:52:59 (108 views)

Spend that money on better suspension first. More bang for the buck. - dingster 2002-04-06 18:37:52 (192 views)

Dan, what's your feeling on the impacts in street driving in the real world? - yippers 2002-04-06 19:33:18 (93 views)

I don't think it makes a differece til traction reaches 9/10ths - dingster 2002-04-06 19:36:19 (122 views)

But at the track you're 9.9/10 all the time. - markbradford 2002-04-06 19:47:43 (112 views)

I was thinking in limited traction situations .. i.e., snow or fresh rain on oil slick roads. More - yippers 2002-04-06 19:40:32 (129 views)

It might help or it might hurt. I dunno. - dingster 2002-04-06 19:46:38 (109 views)

Understood that. I was thinking it might be less forgiving on the road so I was curious if that was - yippers 2002-04-06 19:49:06 (97 views)

It's possible that the mod reduces the diff's ability to send power to the front. - markbradford 2002-04-06 19:53:01 (123 views)

I thought I saw max split on our system is 25/75 - dingster 2002-04-06 19:54:28 (98 views)

65/35 - markbradford 2002-04-06 19:57:22 (85 views)

Mininum split for this type of system is 2.5:1. I know the stock max bias is 25/75 - dingster 2002-04-06 20:03:53 (112 views)

Here is an interesting discussion on the Torsen. Says it is 75/25 but do to frictional losses closer - yippers 2002-04-06 20:15:22 (119 views)

2:1 is stock. 4:1 is Stasis. - markbradford 2002-04-06 20:05:06 (96 views)

Ditto ... both front/rear and left/right IIRC - yippers 2002-04-06 19:55:50 (76 views)

"Suspension, alighment, tires will make more of a difference. " CHECK! - markbradford 2002-04-06 19:31:34 (179 views)

I'm talking about real alignment, susp, tires =P - dingster 2002-04-06 19:33:36 (117 views)

Well - race tires will cost me twelve points in my local VW/Audi club classifications.... - markbradford 2002-04-06 19:46:28 (152 views)

Call stasis...with the VM3 valving you can run 1200 lbs of spring rate - James R. 2002-04-06 19:58:28 (149 views)

I like what I have now. - markbradford 2002-04-06 20:00:44 (113 views)

Well he does have the glorious Hypercoil/Blilstein setup... - SameerP 2002-04-06 19:30:26 (154 views)

No offense but Bilstein sucks IMHO. WYSIWYG swapped out that combo after 1 autoX - dingster 2002-04-06 19:34:49 (177 views)

Are you sure his struts weren't blown or sum'n? There are about 10 peoplein the area here....... - markbradford 2002-04-06 19:43:48 (145 views)

it doesnt recover quickly enough after hard braking and we're not talking about big brakes here. - WYSIWYG 2002-04-06 20:00:52 (105 views)

did it pogo on you or just refuse to rise after diving? - yippers 2002-04-06 20:17:01 (82 views)

just slow, no pogo - WYSIWYG 2002-04-06 20:21:07 (93 views)

Unless the shocks were over damped on rebound wouldn't that be more a function of springs that were - yippers 2002-04-06 20:23:39 (111 views)

well, its a system. think about the REARs reaction to a dive, it has to come back too - WYSIWYG 2002-04-06 20:40:59 (87 views)

More on the bilstien/vortrag fixed height kit.. - Nick N 2002-04-07 21:53:59 (150 views)

to reword what probably were both saying: the bils is NOT a good combo for the vortrag springs - WYSIWYG 2002-04-07 22:06:24 (105 views)

Yeah if ppl want the best perfomance, koni's will dampen better at the limits... - Nick N 2002-04-07 22:24:28 (117 views)

What springs are you running? - markbradford 2002-04-06 20:04:10 (87 views)

was vortrag hypercos. now with ultras - WYSIWYG 2002-04-06 20:08:13 (104 views)

you guys WOULD have this argument SEVEN DAMN DAYS before my suspension goes in :( - �OOSTD� 2002-04-06 20:14:49 (105 views)

Chris, its really not that bad. i dont think there are many chances one will need to 70-15mph and - WYSIWYG 2002-04-06 20:20:01 (134 views)

well the difference is I'll be 2nd-guessing the shock decision. - �OOSTD� 2002-04-06 20:32:12 (148 views)

Don't worry Chris. They're very nice for aggressive street driving - dingster 2002-04-06 21:01:27 (106 views)

don't worry chris... you will be so thrilled you will forget all about it... - skabaru 2002-04-06 20:58:20 (94 views)

and you are right, you are going to need height adjustability with the hypercos - WYSIWYG 2002-04-06 20:35:40 (78 views)

And the fact that the c/o's don't eliminate understeer doesn't bother you as much as the Bils? - markbradford 2002-04-06 20:11:12 (114 views)

what are you talking about? *YOU* correct understeer - WYSIWYG 2002-04-06 20:16:38 (102 views)

Huh? I'm talking about the balance of the car. - markbradford 2002-04-06 20:19:53 (108 views)

just wanted to point out the you cant use the same formula to estimate the performance of springs - WYSIWYG 2002-04-07 09:10:55 (97 views)

what i meant is understeer can be corrected on the fly. currently the 19mm is out of the car - WYSIWYG 2002-04-06 20:26:18 (118 views)

Depends on how it's setup and driven - dingster 2002-04-06 20:22:43 (99 views)

Yeah - hell you can get a stock Honda Civic to kick the tail out..... - markbradford 2002-04-06 20:25:14 (106 views)

Like I said, setup and driving - dingster 2002-04-06 20:28:24 (109 views)

"Grossly feeding steering input even with throttle lift won't make the car oversteer" ??? - markbradford 2002-04-06 20:32:11 (132 views)

=) try that on an OE A4 - WYSIWYG 2002-04-06 20:43:48 (85 views)

whatever you say - dingster 2002-04-06 20:35:33 (108 views)

Who said anything about understeering? - markbradford 2002-04-06 20:40:33 (146 views)

you were implying the Honda has a tendency to understeer - dingster 2002-04-06 20:46:17 (111 views)

They were fine. Not enough low speed damping IMHO - dingster 2002-04-06 19:49:48 (119 views)

That is why I prefer the single tubes on the street. Limits the jiggles you tend to get with the - yippers 2002-04-06 19:52:38 (113 views)

been thinking about that myself - �OOSTD� 2002-04-06 18:37:38 (95 views)

dont do it - mik� |�.8�q| 2002-04-06 18:32:31 (196 views)

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