Body roll elmination??
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bazan
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Body roll elmination??
How can I do this? I am looking at some stiffer springs, probably the Suspension Techniques. I don't want a really big drop, I feel the car is not 1.5-1.8" high. I'll finish filling the wheel well gap with bigger tires. But I'm not suspension savvy enough to be able to pick the spring rate that suits me best. Anyone know about these ST springs with KYB AGXs? Help me! Please!
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Grant@tirerack
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SR20DET240
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hey guys, I'm bazan's roomate here @ college. He's asking this because found a big open parking lot and I was doing a little drifting practice. Too much body roll and not enough power to do anything special.
He's looking at the Suspension techniques springs in Exar-cun's FAQ.
He does mostly street driving, and has just joined a SCCA autocross here at school so we are trying to look at mods for his suspension. Basically we were wondering if the Suspension Techniques springs would be too much for street duty with the occasional visit to the track?
Here are the specs:SUSPENSION TECHNIQUESSpring Rate - F : 3Spring Rate - R : 2.66Ride Height - F : -1.3"Ride Height - R : -1.3" (?)
We are also going for Whiteline adjustable sway bars and KYB AGX's. Replacing the TC rod bushings and other worn bushings with polyurethane and/or Nismo hard rubber will be done as well. So what are your opinions?
He's looking at the Suspension techniques springs in Exar-cun's FAQ.
He does mostly street driving, and has just joined a SCCA autocross here at school so we are trying to look at mods for his suspension. Basically we were wondering if the Suspension Techniques springs would be too much for street duty with the occasional visit to the track?
Here are the specs:SUSPENSION TECHNIQUESSpring Rate - F : 3Spring Rate - R : 2.66Ride Height - F : -1.3"Ride Height - R : -1.3" (?)
We are also going for Whiteline adjustable sway bars and KYB AGX's. Replacing the TC rod bushings and other worn bushings with polyurethane and/or Nismo hard rubber will be done as well. So what are your opinions?
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Jeff Williams
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I put the ST springs on my '95 Maxima, along with some 17" wheels and 245/45/17 tires. It really stiffened the car up. It was too bouncy for the wife, so I went back to the stock springs. Looking back, I shoul have bought some Tokiko Blue's. That would have over come the rebound of the stiffer springs, and made the car less "bouncy".
What you are doing is right. Let someone else do the research, then copy them. This is the cheapest route.
I put a set of Autospeed coil overs on my '93 Accord. BOY, was that a mistake. I ruined 3 sets of struts, before I sold the car. The first set bled out, after one week.
This car made the Maxima ride like a Cadillac.
Sway bars are good. Poly bushings are good, too. Remember, the stiffer the susp[ension, the harder it is on the sidewalls of your tires. Something has to give.
Look at the G35. It has a softer suspension that the 350Z, and it is under powered, yet it is faster on the road course. Soft is not always bad. Balance is what makes a car fast, not stiffness.
What you are doing is right. Let someone else do the research, then copy them. This is the cheapest route.
I put a set of Autospeed coil overs on my '93 Accord. BOY, was that a mistake. I ruined 3 sets of struts, before I sold the car. The first set bled out, after one week.
This car made the Maxima ride like a Cadillac.
Sway bars are good. Poly bushings are good, too. Remember, the stiffer the susp[ension, the harder it is on the sidewalls of your tires. Something has to give.
Look at the G35. It has a softer suspension that the 350Z, and it is under powered, yet it is faster on the road course. Soft is not always bad. Balance is what makes a car fast, not stiffness.
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SR20DET240
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no rob, not drifting in the yukon. :pface
it does donuts and burnouts well though. it has a brand new eaton locker in it.
yeah we have been planning his suspension for a while and i think we have hit the spot now. he originally wanted some TEINs, but they were too much money. So, I think it will work out great because we can do his whole suspension for about what the TEINs would have cost alone.
it does donuts and burnouts well though. it has a brand new eaton locker in it.
yeah we have been planning his suspension for a while and i think we have hit the spot now. he originally wanted some TEINs, but they were too much money. So, I think it will work out great because we can do his whole suspension for about what the TEINs would have cost alone.
It may be a little easier to make a comparison if you use lb/in instead of kg/mm, since most of us can get a better handle on lbs. than on kgs.
Check my math guys... 3kg/mm = approx. 170 lb/in, and 2.66kg/mm = approx. 150 lb/in. The stock springs on the '90 240SX are approx. 120 lb/in front and rear. So, you're looking at approx. 42% stiffer on the front, and 25% stiffer on the rear. For comparison sake, I use the Ground Control race setup, with 450 lb/in (8kg/mm) front and 325 lb/in (5.8kg/mm) rear springs in conjunction with Koni sport shocks/struts. I haven't decided on a sway bar yet, so I'm still running the stock bars, but I get very little roll with this setup. This also makes for a pretty harsh ride on the street (as you can imagine), but believe it or not I have been driving the car to the track (2 hrs one way), and its really not that bad if you can keep to relatively smooth roads.
So, IMO, the ST springs shouldn't make a huge difference in ride quality, but should help reduce body roll a little. I would think you would notice the difference, but it's not going to be dramatic. Another thing to keep in mind, springs are relatively cheap (compared to other suspension pieces), so it is always possible you could get a second stiffer set later on.
Have fun, be safeEarl
Check my math guys... 3kg/mm = approx. 170 lb/in, and 2.66kg/mm = approx. 150 lb/in. The stock springs on the '90 240SX are approx. 120 lb/in front and rear. So, you're looking at approx. 42% stiffer on the front, and 25% stiffer on the rear. For comparison sake, I use the Ground Control race setup, with 450 lb/in (8kg/mm) front and 325 lb/in (5.8kg/mm) rear springs in conjunction with Koni sport shocks/struts. I haven't decided on a sway bar yet, so I'm still running the stock bars, but I get very little roll with this setup. This also makes for a pretty harsh ride on the street (as you can imagine), but believe it or not I have been driving the car to the track (2 hrs one way), and its really not that bad if you can keep to relatively smooth roads.
So, IMO, the ST springs shouldn't make a huge difference in ride quality, but should help reduce body roll a little. I would think you would notice the difference, but it's not going to be dramatic. Another thing to keep in mind, springs are relatively cheap (compared to other suspension pieces), so it is always possible you could get a second stiffer set later on.
Have fun, be safeEarl
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SR20DET240
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Tein?
What about the Tein S-Tech springs? They are progressive which will ride a little better than the ST springs over small bumps and jolts and have and overall stiffer rate (i think about 10% stiffer than the ST springs at full compression) which will perform better as well. Not to mention that Phase2 sells them for $160 which is like $30 less than the ST springs from Enjuku.
Accompanied by some KYB AGX's and some Whiteline sway bars, that would be a bad-a$$ setup for the money. And adjustable enough to use it on the street/highway & road course.
What do you think guys? A pretty good street/race setup for the money, eh?
Accompanied by some KYB AGX's and some Whiteline sway bars, that would be a bad-a$$ setup for the money. And adjustable enough to use it on the street/highway & road course.
What do you think guys? A pretty good street/race setup for the money, eh?