ISC coilover issues

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01-05-2014, 12:43 PM

#121

NBP_BALLER

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I haven't had someone "roll" them with a fender roller. Ive rolled the upper lip in the rear myself very carefully and the rear don't rub. The front i've just used a pry bar to roll the lip up a bit. My tire already rubs my inner fender liner but im not sure exactly where im getting the rub from. I think its the corner where the bumper meets the fender. Just when turning and going up inclines. Sometimes i can hear the fender liner rub over bumps slightly. The tire itself isnt damaged where its undriveable or huring anything. Its just gouged out the tread about as far as it can. The left front rubs slightly, but the rf does even more, its always lower than the left side. I have no idea why. My last springs and this set of springs on here always sits lower on the right side with the exact same adjustment.

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01-05-2014, 12:48 PM

#122

NBP_BALLER

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The rear

The front

I could use a 5-10mm spacer in the rear. 18x8.75 + 22 with a 225/40/18

Last edited by NBP_BALLER; 01-05-2014 at 12:49 PM. Reason: forgot to write tire size

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05-01-2014, 06:27 PM

#123

pinina

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Add me to the list!
I get the clunking under 40 mph.
It's only in the front.
They have been on for about 400 miles.
It even the slightest bump,
I do not hear it when I'm going fast.

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05-02-2014, 03:16 PM

#124

midnightcivic

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Quote:

Originally Posted by pinina

Add me to the list!
I get the clunking under 40 mph.
It's only in the front.
They have been on for about 400 miles.
It even the slightest bump,
I do not hear it when I'm going fast.

I would start with checking the top nut making sure its tight and then check the preload. My issues were fixed after the springs were replaced

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05-02-2014, 08:58 PM

#125

Nick216

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I never tightend the top nut. Maybe i should lmao

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05-03-2014, 08:01 PM

#126

pinina

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I looks like that fixed the rattle.

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05-18-2014, 08:50 PM

#127

swoosh

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I posted this in the other ISC thread (link here: https://acurazine.com/forums/showthr...=862849&page=6), thought of posting this here as well to help some members out:

Quote:

Originally Posted by swoosh

First off let me apologize to Meryl and ISC for talking sooo long to install the shorter shafts....they have been sitting with me since Jan and with traveling for work and a new born, I just didnt get time to install these on mine even though we installed it on Chris's car LOL....

So here it goes....measurements !!!

Difference in length:

Length of threaded body on the long one: 245mm (9.65")
Length of threaded body on the short one: 205mm (8.07")
Difference: 40mm (1.58")

Length of Strut on long one: 194mm (7.64")
Length of Strut on short one: 173mm (6.81)
Difference: 21mm (0.83")

Total length of long one: 439mm (17.28")
Total length of short one: 378mm (14.88")
Difference: 61mm (2.4")

So the new shorter shaft is 2.4" shorter overall....also you can lower the car another 1.5-1.7" AND preload tighter and hence avoid clunking

NOTE: I was not experiencing ANY clunking even with the longer ones....and I think I figured out why (keep reading

)

Some pics:

This is with the preload set to 170mm, and old longer struts bottomed out...now I am 600lbs lighter than stock, so some of you might experience different heights...I was at 24.5" FTG (fender to ground) upfront and around 24.75" FTG in the rear (with plenty of room to drop in the rear)

DSC_1631 by Anil Sadhwani, on Flickr

Difference in length of the full body of the strut

DSC_1737 by Anil Sadhwani, on Flickr

Now here is the answer to all the clunking riddles IMO

The coil says 180mm but its actually 175mm (right smack dab between 175 and 176mm)...since the pic was taken from an angle it looks like the tape measure is not position right but I measured it 3 different times....

DSC_1740 by Anil Sadhwani, on Flickr

So when we all were asked to preload to 180mm or even at 175mm, we WERE NOT preloading the coil AT ALL....this I think resulted in all the clunking....I was always preloaded to 170mm and maybe thats why I was not experiencing any clunking...

This is how much I was preloaded, with the car (and wheels) in the air, I barely have the rear wheels come down by an inch....oooo fancy pic

DSC_1742 by Anil Sadhwani, on Flickr

DSC_1735 by Anil Sadhwani, on Flickr

So I installed everything back and wanted to drop her DOWN !!! so I tried out 23.5" FTG, and with this, I can drop another 0.5" to 0.75"...but point being, you can really slam her with these new shorter shafts....

tucking 255 tires like a BOSS

DSC_1746 by Anil Sadhwani, on Flickr

DSC_1744 by Anil Sadhwani, on Flickr

I really hope this helps all the members who are and were experiencing issues with ISC coils....I think these are the better coils on the market since these can accommodate more drop than Teins, the ride quality is awesome, adjustable dampening, come with top hats and all the assembly as well as they drop in the right manner and not by adjusting the preload/spring locking rings and the best part, AWESOME CUSTOMER SERVICE....

I recommend, everyone having clunking issues to check and measure the preload, and adjust it/dial it in to about 172-173mm for a decent ride and 169-170mm for a stiff ride (because racecar bruuhh !!!). If you are still having some issues with clunking, hit up Meryl @ (PM me for her email) and you can pick up the shorter struts from her (I am sure it will be a little $$$ but the coils will still end up being cheaper than Teins or Ksport)

NOTE: I measured the preload of the springs with the coilover on the car and off the car and they were exactly the same....

My final ride height is at 24" FTG and I will post some pics of the car tomorrow/day after....

Last edited by swoosh; 05-18-2014 at 08:53 PM.

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05-19-2014, 11:37 PM

#128

NBP_BALLER

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Hey Swoosh, if you paid attention to me and midnightcivics issue it was the spring itself. The spring was shrunk 180 was reading 200, and total preload was 5mm. Bring top ring to bottom of spring, bring locking nut up to the upper ring, hold the locking ring and raise the upper ring 5mm(1/4 extension end is 6mm) then bring the bottom locking ring to it and tighten. On the ground both our cars springs had coils either touching or enough room to stick a business card in. ISC sent us both new springs and it fixed it. Take in mind we had the 200mm to start out with, now we have 180mm and 90% clunking is gone with me, all with him. He has new shocks though, I however do not. My clunking is over bumps, front is full stiff and its bouncy, not stiff at all. When I say bouncy, I mean it moved up/down like factory suspension. Its not stiff at all on full stiff. I'm 24" FTG and I've hit my control arms on my strut tower before. Tells u how blown my shocks are. So what is the deal with these shorter shafts? Is this just the fronts or all the way around? This is the first time I've heard of these. I need to get this fixed because I'd like to go lower and I cant without damaging things with these bouncy coils. What is Meryl's email?

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05-20-2014, 02:31 PM

#129

swoosh

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what spring did you have to start off with? 200mm but 12KG (sport/street) combo or was it the comfortable spring?

well since thats your old setup, on the new setup the spring is mentioned as 180mm but its actually 175mm, can you just pull your rim off and measure the preload....if you are at 175mm, then I would suggest putting it to about 172mm...

about a bouncy ride, the tighter preload should take care of it and you should look into relaxing your bushings....try these 2 things and I think they should solve the issue...

also, I sent an email to Meryl to post in here, I just dont wanna give out the email address on a page which everyone can see....actually XLR8 (Josh) should be coming in the picture here and helping us out...afterall the order came from Josh....he slacking homie

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05-20-2014, 02:58 PM

#130

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My springs were 200mm. Now they are 180mm. My clunking is from large bumps the front end dips hard and the control arm hits the strut tower because the shock doesn't dampen anything. Full soft vs. Full hard makes no diffrrence. I'm certain its the shocks being blown due to my defective original springs. ISC wanted me to test fit the springs first and see what happened before going with new shocks too. Where did u get the new shorter shafts and did that help u go lower? If I go lower I'm going to slam into the ground like I do now because the shocks don't dampen a thing

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05-20-2014, 03:11 PM

#131

swoosh

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yes, but what was the type of springs were they....12KG or 8KG?

with the shorter shafts you can drop another 1.5-1.7"s lower AND the spring is righter since the shaft strut is about 0.8" shorter....

yeah, if the dampening makes no difference then I am guessing the shocks are to blame...

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06-04-2014, 04:30 PM

#132

Nyordrms

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quick question for everyone, when removing stock suspension have u guys had any problems with any of the bolts vein seized in the bushings?? just getting ready to attempt the ISC coilover install this weekend and would like to see how many of u came across this problem,

thanks

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06-04-2014, 04:39 PM

#133

Nick216

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^ not tryna scare you, but all 4 of mine had siezed. And one bolt snapped inside the control arm. Start pb blasting it all asap.

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06-04-2014, 10:34 PM

#134

swoosh

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Quote:

Originally Posted by Nyordrms

Quote:

Originally Posted by Nick216

^ not tryna scare you, but all 4 of mine had siezed. And one bolt snapped inside the control arm. Start pb blasting it all asap.

I concur with Nick

mine were not seized but I had used lithium grease on me the last go around...

I would suggest spray PB Blaster couple days before the install...cant go wrong with that

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06-04-2014, 10:36 PM

#135

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so after about a month of having the shorter shafts, still no thumping or bumping....I was at 24" FTG but because of scrapage, I went back up to 24.25" FTG....here are some shots: