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employment whiplash, NC
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Discussion Starter #1
I'll be getting my set this week and plan to start the install this weekend. I have 350 lb up front and 250 in the rear. The question I have for you guys are:

1) How much did you lower it? I plan about an inch, no more.
2)How much of the bump stops did you trim?
3)Did you get different bump stops?
4)Do you bottom out at all?

Thanks,
Matt
 

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El Chingon
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Well, I don't have your same setup, but I'll chime in anway. First, the question I have is what Struts/Shocks are you running? My setup consists of 300/200 GCs w/KYB AGXs and Motivational rear upper mounts. I lowered mine probably 1.75 inches, but I'm not sure exactly (I have 17's and it still looks a bit high). I cut my bump stops in half; did the trick. Stock bump stops. Yes, I botton on REALLY DEEP holes (which I try to avoid as often as I can). My rear has never bottomed with the Motivational rear upper mounts, but the front does when the surface irregularity is extreme. Regular around town driving won't cause any bottoming (at least it doesn't on mine) just when you go onto REALLY bad pavement or messed up dirt roads. On the street I ride with the AGXs on 2 in the front and 4 in the back and I love it. It rides exceptionally well for such a drop, but still handles awesome in the twisties! A bit of understeer, but still awesome. Like I said, tell us what kind of Shocks/Struts you're gonna run so we can guide you a little better. I know you're not gonna use the stock Shocks/Struts, right????

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David
'98 Super Black SE w/stuff

 
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Dave with the Black sentra SE...I also have an a 98 SE with pro-kits and stock struts/shocks. The ride is horrible with the stocks on..my question is I went to the ground control site and saw the adjustable and non adjustables and the price difference was incredible. Does non adjustable mean you can't lower your car with GC's? I mean like say your at a car show and wna to slam it like 2 inches or more...can you with the non adjustable shocks/struts? What does that all mean?
 

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El Chingon
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Yea bro, the GCs are totally independent of your shocks/struts. The GCs are, speaking in terms of height adjustablity, adjustable springs. The shocks/struts, on the other hand, are compression and rebound adjustable (I believe it's only compression on the AGXs). So yea, you can slam your car to the ground one day and make it look like a 4 X 4 the next day with GCs and stock shocks/struts. I just wouldn't recommend it due to poor handling (caused by bump steer among other things) and awful ride. And besides, when you could get AGXs for $350 a set, why would you keep the stockers in there


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David
'98 Super Black SE w/stuff

 

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employment whiplash, NC
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Discussion Starter #5
nsracer: I have had AGXs on stock springs for about a year now. The AGXs adjust both compression and rebound at the same time.

How much are those Motivational mounts?

Matt
 

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El Chingon
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Actually no, the AGXs are only one way adjustable. If I could ever find the shock dyno that Kyle got from Ground Control I could show you. I'll look for it. But now that I think about it, they are not compression adjustable, but rather only rebound adjustable. You'll see what I mean if I can ever get that darn shock dyno. For the Motivational mounts go over to http://www.motivational.net/ and get them from there. $68 for use with coilovers and $88 for use with regular springs.

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David
'98 Super Black SE w/stuff

 

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employment whiplash, NC
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Discussion Starter #7
Hmmm. I'll have to go back and review my old Grassroots Motorsports where I thought Jay from Ground Control said the AGXs adjust both rebound and compression at the same time.

But the dyno doesn't lie......
 

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El Chingon
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Yea, that's the thing. When you look on a vendors site they say something like "With a turn of the knob comes instant dampening adjustment!" or "Rebound and Compression are both adjustable with a simple turn of the knob!" But when in fact the only adjustability is in Rebound. I looked at Kyle's site, but the dynos aren't up anymore. He'd been having problems with his server and some stuff probably isn't coming up because of that. I'll call him up over the weekend and ask him to e-mail me the graphs and I'll post 'em up for ya.

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David
'98 Super Black SE w/stuff

 

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employment whiplash, NC
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Discussion Starter #9
NSracer,

Had the AGXs off the car last night fitting the coilovers on. By my totally unscientific seat-of-the-pants feel, I feel the AGXs change rebound as well as compression. On position 1, it was a struggle to compress the piston, but I could do it. On position 8, it was nearly impossible for me to compress it. (My hand still hurts.....)

I did find the letter in Grassroots Motorsports where Jay Morris from Ground Control does say that AGX adjusts both rebound and compression on the SE-R. The February issue I think.

Could it be that the shocks for the classic SE-R and the 200SX SE-R are totally different and we're talking about 2 different things? Because I'm 99.99% sure my AGX shocks for a classic 91-94 SE-R adjust both rebound and compression.

Matt
 

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<font face="Verdana, Arial" size="2">Originally posted by MaddMatt:

1) How much did you lower it? I plan about an inch, no more.
</font>
Be disciplined with this! Don't just eyeball it. Measure the distance from your wheel centerline to the fender lip. Measure with stock springs, then measure with the GC's. Don't lower more than about 7/8". The car will settle a bit more, at least another 1/8", as everthing wears in a bit.

1" is a good amount to lower it. Really, don't lower any more than that. It will just hurt your handling.

Why you are installing the struts, I recommend drilling out your upper strut mounting hole a little. I used a 1/2" drill bit. Just open up the hole a bit so that you can get some additional camber. When you reinstall everything, have a friend push in the upper part of the hub to get maximum camber while you are tighening.

<font face="Verdana, Arial" size="2">
2)How much of the bump stops did you trim?
Half.

<font face="Verdana, Arial" size="2">
3)Did you get different bump stops?
I'm using GC bumpstops on the front. Not a big difference, maybe a little softer. Not required. I like the Truechoice bumpstops.

<font face="Verdana, Arial" size="2">
4)Do you bottom out at all?
Yes. DON'T LOWER MORE THAN AN INCH!!

Rob
 

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<font face="Verdana, Arial" size="2">Originally posted by MaddMatt:
Could it be that the shocks for the classic SE-R and the 200SX SE-R are totally different and we're talking about 2 different things? Because I'm 99.99% sure my AGX shocks for a classic 91-94 SE-R adjust both rebound and compression.</font>
If I remember correctly (someone mentioned on the SE-R list), the KYB AGX's adjusts BOTH compression and rebound at the same time... It is still single adjustable, meaning both compression and rebound CANNOT be adjusted independently. So one turn of that knob would change both the compression and rebound setting.
 

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El Chingon
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Ummm, I don't think so, but I could be wrong. Rob, do you know of anyone with the shock dyno graphs? I haven't really had a chance to get a hold of Kyle (I think his e-mail wasn't working anyway). Tell you guys what, I'll call him after work tonight so we can look at the graph and be 100% sure.

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David
'98 Super Black SE w/stuff

 

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employment whiplash, NC
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Discussion Starter #13
1 last question.

I assembled everything last night. There's about a 3 inch gap between the top of the spring and the upper strut mount. I would think this would be a problem when the suspension is unloaded (when cornering). Is this really a problem?

Thanks,
Matt
 

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El Chingon
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It shouldn't be unless you plan to fly your car, lol
But seriously, I haven't had any problems with that. How much did you lower it afterall? Did you do it like Rob suggested? I'm still looking for those dynos.

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David
'98 Super Black SE w/stuff

 

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<font face="Verdana, Arial" size="2">Originally posted by ClassicSE-R:
Yes. DON'T LOWER MORE THAN AN INCH!!
</font>
U mean u ain't s'posed 2 jest slam dat beeyotch 2 da ground? I thought dats what you wuz s'posed 2 do 4 a phat ride and when u wanted all the peeps 2 give u mad props, yo!





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'93 Sentra SE-R, daily driver and track/autox toy
 
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I thought so too. I thought the lower you go the better it handled? Hell look at the F1 cars they ar like 2 inches off the ground!


MarC
 
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