Road/Race Engineering 3G Eclipse Parts

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RRE  3G Koni Front Insert Install Info  

Koni sells an insert intended for the front of the 90-94 Mitsubishi Eclipse. The strut tube inner dimensions and upper threaded rod of the 1G Eclipse is exactly the same as the 2000-2002 Eclipse. This means that the Koni insert is a direct swap into the 3G front strut housing. This swap on a 1G Eclipse or a 3G Eclipse requires a fair amount of mechanical ability. You need to be able to cut open the stock strut tube and drill large holes in addition to being able to remove and install the springs with out hurting your self. This page is intended to show you what is involved so that you can make an informed decision when it comes to purchasing and installing these inserts. We have pricing information on both the parts involved and our shop labor at the bottom of the page.

 

There are two was to install the Koni inserts.

The first way is as they are intended to be installed by Koni.

Koni's Instructions

koni_instructions1.jpg (32435 bytes) Here, Koni is asking you to make alignment marks on the bearing plate, the upper spring perch and the lower spring perch. The spring perches are offset to clear the strut tower. If not aligned properly, the spring and perches will contact the body when you turn the steering wheel.

The standard spring removal and install steps and precautions apply here. Many big chains will loan you a spring compressor for free or they can be purchased for $25-$50.

Air tools are a HUGE help here but not necessary.

koni_instructions2.jpg (14112 bytes) Center punching the center of the bottom of the strut housing.
koni_instructions3.jpg (14052 bytes) Drill a starter hole in the bottom of the strut housing. 1/8" hole is fine. This will bleed off any residual pressure from the strut.

Here Koni is having you put a piece of tape over the hole to not make a big mess with oil everywhere.

koni_instructions4.jpg (22138 bytes) About 1 3/4" below the top of the strut, use a hack saw to cut through the tube. Keep going around in a circle until the tube is cut through. You dont need to cut all the way through the strut rod, just the outer tube. About 1/16" deep, or a little more. Knock the upper part out of the strut tube.
koni_instructions5.jpg (23327 bytes) With the strut rod in a vise, tap down on the strut body. The stock insert will come out. It will be an oily mess. Have a drain pan ready. Dump what ever oil remains in the housing into the drain pan. Dispose of the oil like you would motor oil.
Now, using the starter hole you made earlier, drill a larger 9/16" hole in the bottom of the tube. If you cant come up with a drill that big, use a 1/2" drill and file it 1/16" bigger.
Check the inside of the strut tube for any burrs or protrusions. Remove them if necessary.
koni_instructions8.jpg (27388 bytes) Place the rubber sleeve over the end of the strut tube. Slide the Koni insert into the strut tube.
koni_instructions9.jpg (18433 bytes) Use the supplied bolt, concave washer and lock washer to draw the Koni insert down into the strut tube. Torque the bolt to 60-65 foot pounds. It is a good idea to check the torque on this bolt one month later and also one year later.

Roll the rubber sleeve up to cover the joint where the insert meets the strut body.

koni_instructions10.jpg (28541 bytes) Place the white flat plastic washer on top of the strut insert over the rod. Reinstall the spring assembly. Take note of your alignment marks. 

Dont forget to install the bump stops and accordion dust boots.

koni_instructions11.jpg (14962 bytes) Torque the top nut to 37 foot pounds. Do not use an impact wrench. With an impact wrench, you risk breaking off the upper tip of the rod (it is hollow) and you risk damaging the adjuster tab.
koni-adjusterturn.jpg (18589 bytes)

Adjustment knob placed onto the adjuster tab.

Additional pics

koni3g-springcompressor.jpg (30447 bytes) Spring compressor clamping down on the spring.
koni3g-drillingdrain.jpg (32799 bytes) Using a Big Ol' drill press to drill the bottom hole. A hand drill works fine too.
koni3g-drainholedrilled.jpg (29244 bytes) Starter hole drilled. We blow a bigger 1/4" hole in the bottom.
koni3g-drainingoil.jpg (22599 bytes) Lets us drain all the oil out. You need to pump it some to get all the oil out of the valving.
koni3g-cuting-chopsaw.jpg (27576 bytes) We cheat when it comes to cutting the top of the tube off.
koni3g-cutentirely.jpg (27530 bytes) We use a chop saw and make a big smokey mess.
koni3g-cutentirely-loose.jpg (28558 bytes) Here it is with the inner strut guts just poking out.
koni3g-gutsout.jpg (48744 bytes) All the guts out.
koni3g-gutsout-emptytube.jpg (22678 bytes) Empty tube.

 

Short Struts

The Koni Inserts can be modified to allow an additional 3/4" of suspension travel. This additional travel can be a godsend if your car is lowered. This means an additional 3/4" before you slam into the bump stops. It is a lot more involved to install them this way. Also, installing the springs is a total pain. The springs need to be compressed an additional inch to get them back on. This does not change the ride height (lower the car) at all. You are only gaining additional suspension travel. Now, you ask for additional travel, you'll get it, right? If you have big tires, wide rims, a low car and rough roads, expect the tires to touch the fender liner at times. All of the ones we have installed locally and 90% of the shortened Konis we ship have no problems with this.
koniinstall-shortandlong.jpg (23701 bytes) Here you can see the difference between the Koni inserts installed short (left) and the standard way that Koni recommends (right).

By installing them short, you will void the lifetime warranty from Koni. Technically, by installing them on a 3G you are voiding the warranty. But only if you tell them you had them on a 3G.. :-)  Right? (They would have no way of knowing they were not installed on a 1G Eclipse otherwise.)

koniinstall-bottomholedrilled.jpg (29739 bytes) We cut a big hole in the bottom of the strut tube with a hole saw.
koni3g-lugcutoff.jpg (29679 bytes) The threaded lug is cut off.
koni3g-cleaningpaint.jpg (15847 bytes) Cleaning the thick yellow paint off the insert where we will be welding.
koni3g-protection.jpg (28068 bytes) When playing with the inserts, we slide a piece of rubber hose over the rod. If you in any way scratch or nick the rod, the insert is junk. You can also use several layers of duct tape (some cheap tapes can leave a nasty residue).
koni3g-nubs.jpg (20555 bytes) The lip at the top of the Koni Insert will not allow a coil over sleeve to be slid over it. Either it needs to be ground down, or you need to be sure the threaded sleeve is already installed onto the strut body before inserting the Koni insert into the tube.

In this pic, you can see the little nubs on the side of the insert. These nubs grip the inner wall of the housing for a snug fit. 

koniinstall-pipeaqndprotection.jpg (25644 bytes) Since we are not able to use the bolt that Koni provides to draw the insert down into the housing, we have to beat it down in.
koniinstall-knockininsert.jpg (24612 bytes) We use a pipe that slides over the strut rod and contacts the top of the insert body. We then beat on the pipe to drive the insert into the housing and flush with the hole we made in the bottom of the housing.
koniinstall-bottom-readytoweld.jpg (26537 bytes) The bottom of the insert now is flush with the hole in the bottom of the housing.
koniinstall-bottomwelding-half.jpg (27903 bytes) We then SLOWLY and CAREFULLY weld the insert into the housing. With the lug at the bottom cut off, this is the only way to hold the insert into the housing. We are welding on the thicker double layer part of the insert. Also, we are welding a little at a time. Just about 1/4" at a time. We allow the strut to cool so that it can be touched before welding further. This slow careful welding does not damage the insert or the valving. 
koniinstall-bottomwelded.jpg (30504 bytes) By welding slowly and on the double layer of steel, there is no explosion risk. If you dont know what you are doing, dont try this at home kiddies.

 

We currently have the Koni Sport front inserts in stock. They are $145 each.

If you are local, us installing everything:

You need to make an appointment to bring the car in. We are usually able to get the car in with in a week. You will need to drop the car off for an entire day. We are not able to do it "while you wait".

The cost to remove and install the pair of front strut assemblies from the car is $40.

The cost to remove and reinstall the springs is $20 for the pair.

Once the springs are removed, the cost is $50 to cut the pair open, take out the stock inserts, clean the housings and install the Koni inserts into the strut housings the way that Koni recommends. This gives you the same amount of suspension travel as stock.

If you want the strut inserts shortened for 3/4" additional suspension travel, it is $40 additional. By installing them shortened, you will void the lifetime warranty from Koni. The car will ride and handle much better however. It is your choice.

Add $40 to install rear shocks and or lowering springs on the rear at the same time as installing the fronts.

E-mail Tony to set up an appointment for the install.

 

Local, but us modding the struts only:

If you are local, you remove the strut assemblies your self but are unable to deal with removing and reinstalling the springs. You bring in just a complete spring/strut assembly:

The cost to remove and reinstall the springs from the struts is $20 for the pair if you bring them in with the springs still installed..

Once the springs are removed, the cost is $50 to cut the pair open, take out the stock inserts, clean the housings and install the Koni inserts into the strut housings the way that Koni recommends. This gives you the same amount of suspension travel as stock.

If you want the strut inserts shortened for 3/4" additional suspension travel, it is $40 additional. By installing them shortened, you will void the lifetime warranty from Koni. The car will ride and handle much better however. It is your choice.

An appointment is not necessary, we will need the struts left here for an entire day.

 

You are far away and we will be shipping you installed inserts for exchange:

If you are far away and we are going to ship you struts already made up for you to install. You send us your old dead struts back with in 2 weeks:

If you are a frequent repeat customer, you pay $40 additional for the core/exchange deal.

If you are a new customer, we will charge you a $170 core charge. When we get your old front struts back (valving can be dead, strut bodies must be straight) we will refund you $130. We are keeping $40 of the core money to go towards buying core exchange parts.

If you wish to keep your old struts, you just pay the full $170, let us know your plans at the time you place your order.

The cost is $50 to cut the pair open, take out the stock inserts, clean the housings and install the Koni inserts into the strut housings the way that Koni recommends. This gives you the same amount of suspension travel as stock.

If you want the strut inserts shortened for 3/4" additional suspension travel, it is $30 additional. By installing them shortened, you will void the lifetime warranty from Koni. The car will ride and handle much better however. It is more difficult to install the springs onto a shortened strut housing.. You or your mechanic will need two pairs of spring compressors to get the springs clamped down far enough. It takes at least an extra 20 minutes of wrestling with them to get the springs back on. It is your choice. Modifying the strut bodies for additional travel doe not affect the ride height. It will not raise or lower the car. You just get more suspension travel.

To sum it up:

Frequent Customer, Core Exchange

Availability subject to other guys returning their cores in a timely fashion

Part/Service Quantity Price Ea Price
Koni Sport Insert 2 $145 $290
Labor, Install Inserts 1 $50 $50
Core Fee 1 $40 $40
Total

$380

Modify For Additional Travel 1 $40 $40
Total

$420

If Cores are not returned to RRE With in 4 weeks of invoice date

$130 Additional

 

New/Infrequent Customer, Core Exchange

Availability subject to other guys returning their cores in a timely fashion

Part/Service Quantity Price Ea Price
Koni Sport Insert 2 $145 $290
Labor, Install Inserts 1 $50 $50
Core Charge 1 $170 $170
Total Charged to Your Credit Card at Time of Purchase

$510

Modify For Additional Travel 1 $40 $40
Total Charged to Your Credit Card at Time of Purchase

$550

Refund Amount When Usable cores are returned to RRE $130
Total Cost Once Cores are Returned $380 Standard
$420 Shortened

 

No Core Exchange, No Wait, You Keep Your Old Struts:
Part/Service Quantity Price Ea Price
Koni Sport Insert 2 $145 $290
Labor, Install Inserts 1 $50 $50
New Factory Mitsu Struts 2 $85 $170
Total Charged to Your Credit Card

$510

Modify For Additional Travel 1 $40 $40
Total Charged to Your Credit Card

$550

No need to return your old stuff.

 

 

What Rear Shocks to get?

We recommend as a first choice, the Tokico Illumina 5 way adjustable shocks. Cost is $170 per pair (through about 2/02) . We think these best match the characteristics of the Koni valving and adjustment.

As a second choice, the KYB AGX adjustable shocks. Cost is $170 per pair. These are fine, adjustment range ends up stiffer than the Tokicos. Some guys cry about them being too stiff.

Last choice for us is the Koni Sport adjustable shocks. At $135 each they are the most expensive and the least impressive.

We have no problems or issues with mixing and matching brands.

 

Who and When

I'll try to keep this list current to with in a day or two just to help everyone know where they stand. Please install them and get your cores back to us ASAP, there are others waiting. Guys that are buying the struts outright and not doing the exchange will sometimes get done sooner since we dont have to wait for a pair to be returned. Your credit card is not charged until the struts actually ship out to you.

We are currently running 4 pairs in circulation for the exchange program (4/02)

Who What Order received Parts in/
Cores Avail
Building Parts Shipped Cores Returned
Joe Fiddelman Short 2/5 Yes 3/15 3/18  
David Nolan Short 2/6 Yes 3/19 3/22  
Travis Howard Short 2/6 Yes 3/22 3/26 Received
Rachel Bish Std Length 2/20 Yes 4/8 4/11  
Shelby Thorton Short 2/25 Yes ~4/12 4/15  
Michael Hilton Short 2/25 Yes 3/22 3/26 No exchange
Ben Northrop Short 3/5 Waiting for cores      
Stephen Palmroth Std Length 3/11 Waiting for Struts 4/22 4/24 No Exchange
Karl Harris Short 3/14 Waiting for cores      
John Matisa Short 3/18 Waiting for cores      
Ryan Saghir Short 3/19 Waiting For Cores      
Brian Sewell Short 3/20 Waiting For Cores      
Seneca Johns Std Length 4/9 Waiting for cores      
Alex Meredeth Short 4/9 Waiting for struts 4/19 4/24 No Exchange
Chris Hurm Short 4/9 Waiting for cores      
John Tmmerman Short 4/11 Waiting For Cores      
Joe DeNave Std Length 4/15 Waiting For Cores      
Alex Rudinski Short 4/18 Waiting For Cores      

 

Road/Race Engineering 3G Eclipse Parts

Order Form Credit Card Usage and Shipping Info

 

Contact Road///Race Engineering
13022 La Dana Ct. Santa Fe Springs, Ca 90670
Tel (562) 777-1522   Fax (562) 777-1562
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