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Different springs front and rear

phunk

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http://www.summitracing.com/parts/ens-9-6101g

based on measurements off my Sportline rear springs sitting here on the desk, these will fit. They are .375 thick. So, being that the spring is somewhere in the middle of the control arm, I am expecting to raise up about 3/4"... which should turn the Sportline rear drop from 1.3" to somewhere around .5 - .6", which would be perfect for me.

Imma give them a shot.
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phunk

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Ordered them. I will have them in a day or two then I will put in the rear springs and post up about how it worked out.
 
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DJGold

DJGold

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For someone with sportlines these might work but with the prokits the front isn't dropped enough, that's the problem, not that the rear is too low.
 

dubster99

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Ordered them. I will have them in a day or two then I will put in the rear springs and post up about how it worked out.
Definitely let me know. I was looking at more of the 1" rear drop that the pro kits offer, but I bought sportlines.
 

opensesame

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Grintch

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There is nothing wrong with installing mixed springs.

I do recommend that you keep them similar though, in terms of design. Progressive or Linear only - but that is just my recommendation.

In a few weeks, we will have our Performance Springs available F and R separately, and later this year we will have many different F and R springs available separately. ;)
Doesn't BMR have a front spring on the way with like a 3/4" drop intended for use together with the stock PP rear springs?
 

dubster99

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phunk

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The way my car sits with the sportlines in the front and stock in the rear looks pretty good from most angles, just looks too tall from behind the car. My front lowered a tiny bit more from adding the blower etc (like 100lb added to the front of the car).

If I can get like 1/2 - 3/4" lower in the back with the sportline and these spacers I ordered, I will be happy with that.

Also, I cant see sh*t at night right now, the headlights are pointing at the ground from lowering only the front. I will re-aim them, but was going to wait to mess with it until the rear was setup.
 

dubster99

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I'm the same...I haven't done the rears yet...fronts only so far. I think 1" in the rear is perfect (that's what she said)
 

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phunk

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I'll have those isolaters today so maybe I'll have a chance to install tomorrow
 

dubster99

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Do you have a lift? Or you got a trick to getting the stock rear springs out? I'm waiting until a buddy can come help push the LCA down for me. No lift is no bueno for the rears. I couldn't get a spring compressor in there.
 

phunk

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Since the setup looks almost the same as my Z in the back, I was going to do it the same way. Put the rear on the jackstands, remove tires, put jack under the control arm, remove the bolt from the spindle, lower jack, swap spring, jack control arm back up, and reinstall bolt.

At least, thats my plan. Ill go about it another way if that doesnt work the same on this car... but worked on my 350z and 370z.
 

DR_

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It doesn't work the same way as the 370Z but it is almost as easy. Just have the back on jack stands, put a jack under the control arm, remove the shock bolts, take out one side of the subframe bolts out, lower the jack which lowers the subframe, and then pull the spring out and then pull the top spring isolators out. There are several videos on youtube from the different vendors that show this is better detail.
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