Another Set of TEIN Specialized Dampers Made!!!

Honestly, our Specialized Damper program hasn’t really taken off like it has overseas. However, there are a few customers stateside that have interest in getting a completely custom suspension made by us, instead of having to piece together their own coilover using damper inserts and some spring setup they’ve found online. Nothing necessarily wrong with that setup. In fact, it’s quite common since that is pretty much the only option available for consumers.

We, on the other hand, pride ourselves in designing kits specifically for each vehicle application and to the customer’s specifications.

Not too long ago, Troy from Five Axis Designs, the guy responsible for many of Scion’s prototypes, as well as some of Toyota’s prototypes (like the FT-1 concept), contacted us about his personal project. He’s currently working on a Datsun 240z.

His car is all original, including paint, and Troy wants to avoid doing anything really crazy to the car. In fact, he’s planning on keeping the paint as-is, even with a little fade after all these years! It’s also a relatively low mileage car!!!

Anyway, Troy had an extra set of factory suspension that had damper inserts. He wanted to get a set of TEIN dampers made after he saw one of our posts on a similar project TEIN Japan posted on Facebook. Troy essentially wanted the same thing. And since TEIN USA really wants to show what we are capable of doing for customers stateside (even though the manufacturing still has to come out of TEIN Japan’s factory). So we ordered up a set for Troy!

For this particular application, we still needed the factory suspension since we needed to cut and remove the damper inserts, then send the factory assemblies to TEIN Japan to have the bottom front spindles and rear hubs retrofitted onto our dampers. This means that the factory components must be inspected and have to be in serviceable/usable condition (in other words, TEIN is not responsible if they receive components out of factory specifications).

A few months later, we received the completely assembled coilover kit from TEIN Japan. Below are some pictures:

 

First, we took the factory suspension and inspected them. Again, this should be done by the customer prior to sending them to us (and before we send to TEIN Japan).

SPD (OEM S30 Dampers) 008
For the rear factory dampers, we had to press out the wheel bearings from the hub.

SPD (OEM S30 Dampers) 002

SPD (OEM S30 Dampers) 003 SPD (OEM S30 Dampers) 006

After sending to TEIN Japan and having them work on retrofitting a completely customized damper setup, this is what we ended up with:

SPD (S30 SSM Dampers) 001

 

Each Damper is individually serialized.

SPD (S30 SSM Dampers) 007

 

This helps us whenever the customer may send them back to us for either rebuilding or revalving the dampers, especially if they decide to change spring rates, or if they just want to alter the handling characteristics of their dampers.

 

SPD (S30 SSM Dampers) 013

Also, if the customer plans to reorder another set of the same dampers, we can refer to our catalog data from this part number and determine what components we used, what spring rates we used, as well as the damper specifications we used just for this customer.

We’re looking forward to updates from Troy, as he continues to do a mild restoration to this car! Stay tuned for those updates!!!

If you’re in the market for custom suspension, whether it be because no one offers a suspension kit for your vehicle or if you need something that isn’t exactly like the factory suspension, or if you just need some customized components like upper mounts only or custom wound springs, give us a ring at 562-861-9161 and speak with one of our sales staff. We’d be happy to help you in creating your very own TEIN damper kit made to suit your needs!!!

 

 

Specialized Damper Program Available in US!

Hey all you car enthusiast! Do you have  a older vehicle or even just a vehicle that you love, but can’t seem to find any or even the correct coil-over suspension for your build?

We have a solution for you! Specialized Damper Program. With this program we are able to build a one-off coil-over kit for your vehicle.

Specialized Damper (Super Street) for Suzuki Kizashi

Suzuki Kizashi

We are able to reuse some of your factory suspension for certain applications if needed. Some original suspensions, such as struts with integrated spindles, must be sent to us for retrofitting onto our Specialized Damper.

We can make the suspension to your specifications (with some limitations based on factory suspension layout).  We can build almost any type of coil-over for your vehicle depending on vehicle application, starting off from the Street Basis to our most developed racing coil-over application Super Racing.

We can add any TEIN technologies and features depending on your budget.

Upper Mount for Suzuki Kizashi

The best thing about having a TEIN Specialized Damper made by us, is that overhaul and revalve service are available.
We currently have update our Web Site with all the information. Please follow this link for further details. http://www.tein.com/products/specialized_damper.html

You are also welcome to give us a call for a free quote on a custom-built suspension at 562-861-9161!

 

 

The Pains of Rally Racing

As we previously mentioned, the Sparco Rally xD team had a rear twist beam axle failure during the last event, Susquehannock Trail Rally in PA. Once they got the car back down to California, they dropped off the rear dampers to us for inspection/repair.

Like we stated before, we knew that the dampers had some damage and broke the piston shafts. Here’s a look at the carnage

Remote hose was ripped right off. The shell case took a few hard impacts causing some dents. Now onto the piston shafts

The above picture shows the top of the shell case where the ring nut seals off the damper. The piston shaft broke midway and the remaining pieces recessed into the damper with oil coming out this ring nut portion. The top portion of the piston shaft was still attached to the shock tower.

This pic below shows the piston shaft broken towards the top, snapping right off after the twist beam axle gave way.

But after a full teardown, we saw that the inner tube (where the piston is inside of) was still intact. The outer shell case took a hit, but the inner tube was unscathed during this violent axle breakage. Here’s a pic showing the dent

The second pic from the top shows the other indentation on the shell case.

On a mono tube damper, this wouldn’t fare so well with that type of dent. Since the piston would reside right against the inner lining of the shell case of a mono tube damper any imperfection to the case will make it either impossible to function properly, or to be field stripped, or both. This is what I meant as testament to the durability of the twin tube damper structure and this case shows it well!

If you’re wondering why we would make a twin tube damper for a rally car, there’s a bit more to it than just the damage that could be inflicted to it physically. Our HG twin tube structure isn’t like a normal damper.

In a standard twin tube damper, there is still an inner tube that contains the piston shaft and piston. This area is fully submersed in damper oil. From the bottom of the damper and through the base valve controlling oil flow into the outside of the inner tube (inside of the shell case) is where there is some oil and the nitrogen gas charge. This charge is important in sufficiently providing rebound force to the damper.

What we do with the HG is fill the inner and outer tube with damper oil.

But wait. If you fill a damper full of incompressible oil and no compressible gas like nitrogen, then technically the piston shaft will never recess into the damper and it wouldn’t function at all.

That is true. But this is also why we utilize an external reservoir to keep the nitrogen charge separate. With this, we can eliminate any chance of aeration (nitrogen gas mixing with damper oil, causing it to froth, decreasing damping effectiveness) while still being able to secure sufficient rebound. The twin tube structure also allows ample stroke length for a given shell case size compared to a similarly built mono tube damper.

So why not utilize this design into all rally suspension? Mono tube dampers still have many great benefits- they dissipate heat better; when inverted, they decrease unsprung weight (you can technically invert our HG damper, btw); they allow a larger piston size; overall damper oil volume can be much higher. They also allow for us to use our Group N.technologies, which aren’t readily applicable to twin tube dampers

http://www.tein.co.jp/e/products/gr-n_frs.html
http://www.tein.co.jp/e/products/gr-n.html

But mono tube rally dampers are a much higher investment as development costs are quite high. Also, they are physically much larger in length and body diameter. the pistons used in them are much larger too, which is key for precise damping control.

So in the end, the HG is still very capable and also very durable at a much more reasonable price!

Anyway, enough ranting. We went right to work getting it rebuilt with new shafts and internal seals. this time, we stuck with our shorter length reservoir hose, still giving the team the freedom to reposition the external tank for their needs.

Awwww. Looking as spiffy as it will ever be! Ready for more abuse!!!

Speaking of which, here’s a video the Rally xD team posted from their blog showing the twist beam axle breakage

Rally Racing Ain’t So Easy…

If you’ve been following the Sparco Rally xD team as much as we have, then you know that they have consistently placed podium finishes. As of the Oregon Trail Rally (May 4-6), they temporarily held 1st in championship points under the 2wd class. Good stuff! That’s not an easy task, mind you!

Consistency is key. If you follow these dudes on Facebook and/or Twitter, you’ll see that they completely rework the car after every event, going down their laundry list of items to check, making sure that all components are good to go or replaced if needed well before the next race. I must add that they run a very tight ship- only a handful of guys working on this car. They not only serve as pit crew and transportation, but I’m guessing also as entertainment for their driver and co-driver Andrew Comrie-Picard and Andrew Wimpey. Geez. That’s a lot of work!

After every three or four events, they normally send their custom HG dampers to us for inspection. In some cases, they go longer without inspection, especially when they quickly have to prep for the next event. As with anything rally, these parts take a beating! In our case, it’s normally exterior coatings that get blasted off by dirt and gravel. Minor concern, i suppose.

Before the Oregon Trail Rally on May 4th-6th, Crew Chief Philip Chase brought in the dampers for a quick check. Surprisingly, nothing to really change on the front dampers.

Jon a.k.a. Sir Smiles-A-Lot Inspects The Front Dampers.

But for the rear, he requested remote reservoir mounting (tank detached from damper body), rather than the external mounting (tank attached to damper body) to give them freedom to reposition the external tank and add some needed clearance in the wheel well. Since that kind of work requires complete damper tear down, we overhauled the rear dampers for them. Now they have the reservoir attached by way of a braided steel hose, allowing them to reconfigure reservoir arrangement (they still keep the reservoir close to the damper body, just upside down and a few degrees in towards the chassis).

Still, even with all this preparation and constant rebuilding, something is bound to go wrong in the world of rally. Case in point- the Susquehannock Trail Rally (June 1-3) proved to be the breaking point for the Rally xD. This time, a fatigued rear twist beam axle gave way, pulling apart the axle and the damper assemblies. Ouch! Seven consecutive events can easily do this to a car and its parts. But seven events is also a long time of service! Seems the xD ain’t no cheapo box, afterall!

Susquehannock is no joke. check out this video showing the driving conditions they face

Fortunately, the break was at the beam. So it looks like they’ll be able to repair the car in time for the next event. Also, it seems that our customized HG rear dampers may be able to be repaired, too! That’s testament to the strong twin tube structure of the dampers that can take a good amount of punishment!

Next up is preparation for Pikes Peak, then off to New England Forest Rally (NEFR). They’ve got some time to knock out repairs.

I wish them the best this season, as these hard-working guys continue to do a great job time and again. On our end, we’ll continue to do the best we can to make sure their TEIN HG dampers are in top working order!

Keep it up, guys!

For an econobox, this Rally xD is one tough shoe!.

There’s some good recap of the events at Rally America’s website

www.rally-america.com

And of course, the dudes at Sparco Rally xD keep their blog up-to-date!

www.rallyxd.com

You can also follow them on Facebook (Rally xD) and Twitter (@RallyxD)! Oh, and you can follow us on Facebook, too (TEIN USA, Inc.)!

P.S.- if you were to look up the Finnish term “Sisu”, I’m almost positive that you’d find a picture of the Rally xD team. Look it up!