ISC Coilovers

[CeleronXXX]

I see your point but if they say I can drop the front 3 inches and I later install them and find out that I actually cannot drop the front 3 inches that is on them. This has been a very long process since the beginning with them and I'm keeping most of my frustrations to myself. Again they were well built and rode nice when I had them on, and I really wanted to keep them.

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[Brian V]

This has been a long drawn out process for me too 9 weeks and counting since the order date and since there is no real answers why ISC claimed that they could build coilovers for the S550 with substantial professionalism ,but in reality ISC N.A. seems to be in a state of absenteeism ..


I can only hope at this point in time that these coilovers arrive with in my stated cut off date .

I only wanted a 1 in. Drop with these wheels and tyres ...

Wish me luck ...

 

[OxWhiteEB]

I did cancel my order a week ago and I'm going with ST coilovers.

 

[Brian V]

Canceled today! Now I will just go forward.

 

[ISC Suspension]

Hey everyone. I wanted to chime in here as this thread was brought to my attention. When we finally finished development of these kits (which took about 1 year) we placed a small stocking order to have them produced. We underestimated the demand on these significantly. Kits were 6-8 weeks out, and that was the ETA we provided to anyone who asked. The rear springs were the issue and holding things up.

Fortunately our boat is finally arriving and many Street and Track kits will be shipping out. We will certainly be getting more of these in stock that are readily available to ship.

Depending on what wheel package you have will determine how low you can go. On this chassis (again depending on wheels) you are looking at stock ride height down to about 2 or 3 inches.

Here are some images of the first kit we finished and did data collection on. Sorry for the low quality images it was getting dark out.












If anyone has any questions please let us know. Thank you to those who have been patient. These will be a normally stocked item into the future!

Here are some of the product features:

Adjustable Damping:
ISC Coilovers all come with 32 way adjustable damping that is rebound and compression in unison via 32 step adjustment.

Single Cylinder Mono-tube Design:
Large cylinder and piston design work hand in hand to increasing driving stability and dexterity. ISC utilizes a mono-tube design damper, not twin tube like other manufacturers. Mono-tube dampers provide consistent valving and much less potential for cavitation. They are also high pressure to reduce body roll, and are 100% efficient through all temperatures. Our larger pistons also allows more oil which provides better damping control and the ability to absorb higher forces. All ISC Dampers also utilize a double o-ring to prevent leaks.

Multiple Valving Options:
ISC Suspension offers three valving options to choose from, street comfort, street sport, and track race.
Street Comfort is designed to feel close to OEM and is the most comfortable valving that we offer. If you are looking for a mild drop and comfortable ride this is for you!

Street Sport is designed to be above OEM, and is more aggressive and ideal for street, drift, and occasional autocross. If you’re looking to bring your car to its limits on the street, this one is for you!

Track Race is our most aggressively valved and is suggested for road course, slammed show cars, and some form of drifting. If you are installing these coilovers on a dedicated weekend track car, this option is for you!

ISC also offers custom valving, please contact for an accurate ETA.

Piston Rod Design:
ISC utilizes high rigidity steel piston rods that meet all race and sport standards. ISC shafts are valved according to the spring rate chosen by the customer. A shock dyno is used to ensure quality and consistent results. All ISC dampers are 100% fully rebuildable.

Upper Mounts:
For optimal performance pillowball upper mounts are a great feature. ISC includes these upper mounts of all N1 Systems.

Front Camber Plates:
When your vehicle’s suspension geometry allows (vehicle specific, please check our application guide) all ISC N1’s come with adjustable camber plates standard.

Thrust Bearings:
While many coilover companies charge for thrust bearings ISC does not. These come standard on all N1 coilovers and help to eliminate spring bind; a common side effect of utilizing aftermarket coilovers.

Sport Spring:
ISC Suspension offers a variety of different spring’s rates. Our springs are made from high quality SAE9254 Steel. They are dyno tested over 500,000 times on a compression inspection with less than 5% deformation. We are fully capable of offering custom spring rates as well! Every driver is different and we understand some may need custom spring rates.
Swift springs also available as an upgrade visit here for more information: Swift Springs

Ride Height Adjustable:
Full length height adjustability. Most applications can achieve 3 inches or more. High quality T6061 aluminum allow used for all adjustment locks to provide a lightweight design that holds spring and vehicle force down.

Bound Adjustable with Separate Spring Locks:
Preload is separate from ride height; the lower you go the quality of the ride stays the same!

Aluminum Brackets:
Made from T6061 aluminum allow by organic shaping to lighten weight and increase handling performance. ISC Gold or Black anodized surfaces help to prevent corrosion and surface rust. Most applications also feature mounting points for OEM brake line installation.

 

[OxWhiteEB]

You told me it is about 7-15 business days when I ordered it 2 months ago. Hahaha

 

[ISC Suspension]

If it was a direct order (from ISC) it is 7-15 business days. The rear springs caused some implications with that. Feel free to PM me your number I can give you a call if you would like.

 

[OxWhiteEB]

I cancelled the order already man, sorry :(

 

[ISC Suspension]

no problem sorry for the inconvenience

 

[Monica_Stang]

Unfortunately I will not be able to write a very good review because I only drove a few miles on them and now am returning them. They told me when I last spoke with them that they will be updating there application guide to exclude performance pack GT's. While they did technically fit the car, you cannot achieve the advertised drop off 3inches, the upper locking ring hits the tire at anything below a 2 inch drop. i will say they seemed like a pretty well built product and drove well the few miles I did put on them.

Is this a problem wheel spacers could possibly solve?

 

[ISC Suspension]

This is not an issue limited to ISC or the Mustang. Depending on the wheel used and the vehicle suspension geometry fitment implications can happen if ride height is brought down to far.

On the Mustang we suggest anywhere from stock height to lowered around 2 inches, similar to the images we provided on the install. That car did have some room to go lower FYI, but from a performance perspective it would have hurt the car to go lower. General consensus on the ISC's is around 3 inches, but can vary more or less depending on the vehicle and the wheels. In the case the performance pack wheels became the limiting factor.

 

[CeleronXXX]

On my car which has stock performance pack wheels I could not go any lower than what I had with the sportlines without adding 1 mm of preload for every 1mm of drop. Yes a spacer would of worked, probably only would've needed a 5mm spacer but I did not want to run a spacer.

 

[Monica_Stang]

On my car which has stock performance pack wheels I could not go any lower than what I had with the sportlines without adding 1 mm of preload for every 1mm of drop. Yes a spacer would of worked, probably only would've needed a 5mm spacer but I did not want to run a spacer.

Hmm okay. Something I'll need to consider. I would prefer buying the ISC over BC since in general I've heard better things about the quality of ISC. I have 25mm spacers already from my last car that still fit. I'm kind of hoping I can avoid the clearance issue you had with these.

If ISC could chime in on this possible solution to the clearance issue it would be appreciated :cheers:

 

[CeleronXXX]

The only solution if you want it really low is to run a spacer or a shorter spring on the Coilovers, I never waited to try the shorter springs so I don't know how it would drive on them

 

[ISC Suspension]

Hmm okay. Something I'll need to consider. I would prefer buying the ISC over BC since in general I've heard better things about the quality of ISC. I have 25mm spacers already from my last car that still fit. I'm kind of hoping I can avoid the clearance issue you had with these.

If ISC could chime in on this possible solution to the clearance issue it would be appreciated :cheers:

Sure thing! Thank you for the kind words.
It really depends on the ride height you are aiming for with these cars.
Note the images we posted. We probably had another .5 in the rear to 1 inch in the front more available for drop, but we opted against it due to the goals that customer had (drive-ability, suspension performance, etc).

The customer who had rubbing issues with his posted some pictures if I recall (yellow). Note how low that is for reference.

So, in conclusion there is no real "solution" it simply depends on if you are trying to go past the point that the S550 suspension geometry and wheels simply just get to close/ and or make contact with each other.

These coilovers are ideal for a street car, auto-x or weekend track car. If you want to slam it air ride may be your best bet, unless you are ok with modifying a coilover kit to orientate it towards stance and not performance (shorten springs, remove collars, etc).

All in all if you are looking to increase handling on the car and drop the vehicle a couple inches while trying to spend under $1500.00 on a coilover this is a great option for that price point.

Hope that helped.

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