General chat that fellow COM'ers may be interested in.
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rajito
- Speed Racer
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by rajito » Wed Oct 25, 2006 11:13 pm
RyanC wrote:zip4zat wrote:GTF, its not just you...
I spun all 4 wheels around 3 and all the way up the hill all weekend, and I think Ive got a gaggle of diffs in my car... ask Raj, he was staring at my passenger door up the hill every lap that he was behind me.
I think you took the concept a bit overboard at the end of the day, Joey...
This one will not go away for a while. Sorry, Joe
Raj
#66 SuperSlowGT
Silver 2004 Nissan 350Z
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ctkag
- Speed Racer
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- Joined: Mon Oct 10, 2005 11:29 am
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by ctkag » Thu Oct 26, 2006 10:48 am
zip4zat wrote:I knew this was coming...
actually found a loose nut that was the source of my problems
Was the 'loose nut' behind the wheel??
-Keith-
SPB116
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zip4zat
- Speed Racer
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by zip4zat » Thu Oct 26, 2006 11:29 am
Um... So I think GTF needs a new LSD
Joe Lu
#24 ST1 STi
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Georgethefierce
- Speed Setter
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by Georgethefierce » Thu Oct 26, 2006 3:49 pm
I wonder where he got that much pink paint
J
07 IT7
Angrypork.com
84 RX-7
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RyanC
- Speed Setter
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by RyanC » Thu Oct 26, 2006 4:11 pm
Georgethefierce wrote:
I wonder where he got that much pink paint
Don't try and trick us, silly, we know he bought it from you!
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Georgethefierce
- Speed Setter
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by Georgethefierce » Thu Oct 26, 2006 4:32 pm
RyanC wrote:Georgethefierce wrote:
I wonder where he got that much pink paint
Don't try and trick us, silly, we know he bought it from you!
I hate you.
J
07 IT7
Angrypork.com
84 RX-7
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Georgethefierce
- Speed Setter
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- Joined: Fri Sep 02, 2005 10:34 am
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by Georgethefierce » Fri Oct 27, 2006 8:30 am
OK, seems I was mistaken and the car came with the VLSD which tend to wear out and turn into an open dif over time...
considering the car has about 128k on it.....I am most likely running an open dif...thanks for the help everyone.
J
07 IT7
Angrypork.com
84 RX-7
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Dave_G
- Speed Racer
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- Location: Vermont
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by Dave_G » Fri Oct 27, 2006 9:41 am
OK, that makes perfect sense now. One of the nice things about the Torsen is that unlike a VLSD or a clutch pack LSD, it never wears out.
If you did decide to put a Torsen in your Miata, I can offer up my experiences if it would help. It's a fairly straightforward swap, but since they're bigger than the original 1990 diffs, you also need to replace the driveshaft and halfshafts.
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Bane of Tires
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by Bane of Tires » Mon Nov 06, 2006 7:31 pm
Ah, a turn 3 thread. I was just thinking about it myself.
Last time out I found my car was getting unsettled over the transitions to the point where I couldn't even touch the power lest I plow very hard (wrong-wheel drive, an Integra
). Funny part is I don't recall having that problem on my stock suspension (I'm now on H&R Street Coilovers). I'm guessing the travel I lost is giving the car trouble eating up the bumps. I definitely don't have that kind of understeer elsewhere on the track. The problem is that I lose a bunch of momentum just before the uphill, and that ain't good with 118 WHP.
Would a shallower turn-in angle help? I figure I could carry a little more speed in to save momentum so long as it doesn't make the car do the wiggle dance. Any ideas? Any of you other front-wheel drive guys experienced this?
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Crusin
- Speed Racer
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by Crusin » Mon Nov 06, 2006 8:16 pm
Since you only mention turn three, I assume the understeer problem is only an issue there. After you changed springs, are you having an increase in understeer in other corners? If yes, then some suspension balance work may be required. If not, and the issue is only turn three, then a couple of things to think about during the cold winter months:
The lower springs allow the car to hit the bump stops when going over the rumble strips. This stiffens the spring rate considerably, upsetting the balance and traction.
The springs are significantly stiffer with the same results as above.
One potential solution is to go deeper into turn three, past the rumble strips, make a sharper initial turn and reducing the amount of turn going up through turn 4. This reduces the unloading effect on the right front tire and should allow you to get on the power sooner.
Quaiffe on the Christmas list also helps.
:tweety:
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Bane of Tires
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by Bane of Tires » Mon Nov 06, 2006 9:33 pm
So basically a later apex in three? It's worth a shot. I'd love to get an LSD but right now I am a destitute student who cannot even consider a track day for a while.
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