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Suspension & Brakes Technical discussion about suspension and brakes

       
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Old Apr 13th, 2005, 12:24 AM   #16 (permalink)
ReVerm
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Quote:
Originally Posted by Omega3k1
my god... i think i could do better in my stock sentra than he is... i like how his kit drags the ground about 8 times :-P

That car is the epitome of RICE.
Quote:
Originally Posted by 1.6pete
i see, i can understand they are to soft, but i bet the stock dampers has alot to do with that. ever since i have been studying suspension i have noticed nearly ever single lowerd car around here is useing stock dampers. even my b13 with nearly blown shocks dosent bounce as much as these cars.
For those of you who are considering upgrading your suspension systems, take careful note of what Omega3k1 and 1.6pete are saying here. They are both very good points.
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Old Apr 13th, 2005, 02:16 PM   #17 (permalink)
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it's like a train wreck. no matter how badly you want to, you can't look away.

all of the newbies should be guaranteed an opportunity to see this. there's a lot to be learned simply by watching it. when i first started, as did most of us, i though just having the nissin lower was good enough, so i bought sportlines, and even cut 1.5 coils off the front and 2 for the rear, and slapped them on the stock struts. i was "pimp" until i had to shell out like $800 to rebuild the bottom side of my car, including replacing my suspension.
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Old Apr 13th, 2005, 04:49 PM   #18 (permalink)
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lol ouch...

I know i've learned a lot since i got my car. I was going to put some Tien S Tech's w/ GR2's on mine... but umm no definatly going to save up for the Tien Basics now if i do do anything major to the suspension, Which i dont think i'm going to do cause this car handles so well already and its great for daily driving. The only upgrade i know i'll do when my stockers go bad is upgrade to some GR2's.
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Old Apr 13th, 2005, 05:19 PM   #19 (permalink)
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Quote:
Originally Posted by Omega3K1
The only upgrade i know i'll do when my stockers go bad is upgrade to some GR2's
GR2's are not an upgrade, Konis and AGX's are upgrades. GR2's are a OEM replacement.
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Old Apr 13th, 2005, 05:22 PM   #20 (permalink)
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Stuck!

thanks for the good post Reverm
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Old Apr 13th, 2005, 08:05 PM   #21 (permalink)
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Quote:
Originally Posted by 91sentra
GR2's are not an upgrade, Konis and AGX's are upgrades. GR2's are a OEM replacement.
i have heard they are like 2 clicks stiffer on AGX's. still not good for lowering springs, but with stock springs they should be quite nice.
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Old Apr 13th, 2005, 09:09 PM   #22 (permalink)
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Perfect example of what many have spoke about and many don't understand... Nice find ReVerm!!!

Now imagine that car trying a high speed maneuver... now that's a scary thought.

A cheap suspension setup is worse than stock..

Last edited by myoung : Apr 13th, 2005 at 11:11 PM.
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Old Apr 13th, 2005, 09:12 PM   #23 (permalink)
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Quote:
Originally Posted by 1.6pete
i have heard they are like 2 clicks stiffer on AGX's. still not good for lowering springs, but with stock springs they should be quite nice.
no.. GR2's are direct OEM replacements.. Not an upgrade...
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Old Apr 13th, 2005, 09:24 PM   #24 (permalink)
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Quote:
Originally Posted by myoung
no.. GR2's are direct OEM replacements.. Not an upgrade...
hmm, ok. i just read that some were (i forget exactly where)
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Old Apr 13th, 2005, 09:32 PM   #25 (permalink)
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I absolutely loved seeing those rear tires coming off the ground! Now I dont feel as much like a jealous asshole everytime I see a ricer sportin whatever APC just came out with! Great find!
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Old Apr 13th, 2005, 11:49 PM   #26 (permalink)
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Ohh My God.... What kind of idiot sets up his car like that? He must be really dense and thinks that when the bottom of his car is slamming against the ground that he's actually got great suspension and that it's extra stiff. And another thing... He's obviously got CHEAP tires, he can't be doing much more than 30mph tops, because I doubt he ever hit second gear that whole time and to be able to get your car to slide THAT easily, he's either riding around on bald tires or some no name tires straight from Ebay that he spent all of $200 for the set of four, with rims included. I can't get my car to slide like that on Dunlop FM901's at anything less than 35mph, hand-breakin it all the way.

A) Thanks for the awesome video, great lesson learned
B) Thank you to all of the experienced people here at Nissan Forums for the great advice. And I pick up my Tien Basics tomorrow morning, they arrived at the post office yesterday.

Chicken-$*** stir fried ricer anyone?
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Old Apr 14th, 2005, 11:00 AM   #27 (permalink)
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Someone want to explain step by step the issues we are watching?

Seth
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Old Apr 14th, 2005, 12:30 PM   #28 (permalink)
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Quote:
Originally Posted by sethwas
Someone want to explain step by step the issues we are watching?

Seth
The main things I noticed here were:

1. Springs are too soft and lower the car too much so any sort of load transfer causes the chassis to scrape against the ground.

2. Dampers are too weak, so the car takes one too many moments to settle after any sort of load transfer (the car bobs and sways after acceleration/braking/cornering).

3. The front springs are too soft and allow the inside rear wheel to come off the ground during even mild cornering.

4. Rear springs are too soft, so front wheels spin whenever the driver opens up the throttle.

5. At about 1:16 into the video, the car "hops" as it attempts a counter-clockwise 360 around a cone. There is actually no bump/dip in the pavement there (I checked footage from other autocrosses held on the same lot). That is the passenger side front suspension bottoming out. This hop is more pronounced than the other times because the car is literally bouncing off of one of its bump stops. Thankfully, he wasn't going fast enough or he probably would have slid into the curb.

The other big thing is that the car seems to have taken its run in a parking lot in Understeer City rather than in Tokyo, Japan, but I think that might be the driver more than anything else.
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Last edited by ReVerm : Apr 14th, 2005 at 12:46 PM. Reason: Grammar, spelling
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Old Apr 14th, 2005, 12:50 PM   #29 (permalink)
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even a mild attemp at setting the car up before the turns would have helped a lot. it can't negate the shoddy suspension that he's got running under the thing, but giving it at least a slight chance to adjust is key. the thing has no chance of coping with all of the weight being transferred (slammed) to the corner that fast. i mean, watch it close, he comes in tight to almost every cone, which we all know kills your entry and exit.
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Old Apr 19th, 2005, 08:33 PM   #30 (permalink)
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i understand whats going on here...but im going to show this vid to my friends to explain to them why not to go cheap on suspension (they dogged me forever for paying what i did for my tein ss's)...anyway, ill show them this vid and all they will say is "i wont ever autocross or race for that matter...why should i care what this car is doing"

what should i say to them then?
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