Defcon's Take on Hotbits Adjustables...
A-HA HA HA HA HA HA HA HA!!!
...just kidding...
Here's the REAL take...
When I asked Lee to swop the absorbers and springs, I also asked him
NOT to change the settings as I wanted to see what Speedworks had done to the installation as I was too busy on Friday to stick around and watch what was happening.
Anyway, I got back home from a loooooong day at work at almost midnight. In the
spirit of a true modder...I got into my car and took it for a spin..
Within 100 metres of my front gate, a strange thought began to form in my mind...
Superman and OngTeckWeng have something in common...
...they both have
asses of steel...
Good God! Another 100m further, I began to miss my oem shocks and procuts...
Another half a kilometre further on, I REALLY began to miss my oem shocks and procuts...clunks and all...
So...next morning, Saturday...bright and early...which, believe me, is NOT my favourite time of a Saturday, I started making my way to haunt
Mr. Lee...the only man within strike range with the
correct equipment to help me find out what was wrong!
Now, the
CORRECT EQUIPMENT basically consists of a jack to hoist the car high enough to get my
"Incredible Bulk" under it to inspect the installation. So, here's what I find...
Right lower arm - broken bushings...explains the occassional clunk, donk and thunk I hear when going over rough roads...but not the reason for my aching ass and lower back. Anyway, got them fixed...took about 3 hours as the lower arms had to be sent to a machine shop to have the bushings pressed out and new ones pressed in...
I then decide to inspect the coilovers installation. No problems there. Lee knows what he is doing. All bolts, nuts etc. properly installed.
So, the problem has to be in the coilovers itself. Inspecting the coilovers, I then notice something not quite right. When the car is hoisted up, naturally, the weight is taken off all the wheels allowing the shocks to extend to their maximum length. With all the shocks at their max length, I notice that the springs are hanging loosely between their upper and lower supports. In fact, in the case of the rear springs...there is a whole
2" of freeplay between the end of the springs and the upper plate. This is unacceptable, as a couple of things can happen...
a) When the car leaves the ground, i.e. at high speeds at a apex of a slope, the spring will drop down, allowing the "lock" between the spring upper bushing and the upper support to go off position. When the car's weight settles down again, they might not sit properly into the upper support, and the car can settle about a cm higher than it was originally. So, loose springs...are a no-no!
b) The extremely far down lower support also allows the weight of the car to almost compress the shock completely, thereby reducing the "travel' to approximately an inch either way...which means...virtually NO damping.
Conclusion : With the shocks in the extreme compressed position, the car is basically travelling on springs, and a hard, metal rod which is what the shock is at this point.
The right way...
There is no secret to determining the correct optimal ride height of a set of adjustable coilovers. These hotbits are street spec'ed, and not race. So, the profile shold be reasonably mild, rather than flat out lowered.
Before you fit on a set of height adjustable coilovers, be sure to tighten the lower support rings so that they grip the spring firmly. Then, just give them another 2 complete turns or so (for hotbits, each turn represents 1.7mm of height adjustment) to provide the springs with just a slight pre-compression to firm up the structure. On the top of the springs, there should be an aluminium or nylon bushing that should sit and lock into the upper support. Be sure that this sits properly and firmly.
Then fit on the shocks. Once fitted, with the car still on jacks, there should be NO freeplay in the springs. Drop the car and measure the height at each wheel. This would now be the optimal ride height of the coilovers. Contrary to popular belief, allowing free-play in the springs does not lower the car any further than this setting, as your shocks will only compress so far. Fine tune the height at each wheel to your specific requirements. Lock the settings and take her for a spin.
In my case, I set the rear wheel height to 27", and the fronts to 26.4". This gives the cefiro a very slightly agressive profile.
The Verdict...
Finally...the moment of reckoning. I slowly back my cefiro out of Lee's shop, aim my weapon of choice down the road, and...
"Let 'Er Rip!!!"...
On the straight, the ride was firm, very slightly bumpy, but that was to be expected. However, the very slight bumps were hardly noticeable, and tended to even out the faster I went. All shocks now were definitely damping. There was no more harshness in the feel, and now, I could truly say that these were a set of performance shocks.
MY ASS WAS SAVED!!!
Approaching the first traffic light, I decided to excute a high speed turn, risking what 0123 calls a "drift", i.e. losing all traction and having your car spin completely out of control...
Entering the corner, I chose the most agressive line I can. I feel the car's weight shift as it sits into the turn and completes it smoothly, with hardly any body roll. The feel is one of complete control, something I have not felt since I first got the feilo.
For about 15 minutes, I continued to run the car through it's paces. Right turns, left turns, rough roads, smooth roads, straights, smooth curves, sudden slow-downs etc. The car car passes each test like a champion and appears even more responsive, since the harder shocks and springs allows for better steering response.
The Final Word...
Whilst I was very happy with the overall performance of the hotbits adjustables, not everybody is blessed with an ass as big and shock absorbing as mine. The hotbits definitely provides improvements in control and handling. They also lower the car by about 1.5" all round, and at the optimum, sits at about the same height as the Eibach Prokit (marginally lower in front).
However, you have to expect at least a little bit of bumpiness. Another side effect is that you will feel your engine marginally through the floorboards, which is something I actually like since it allows me to "read" the engine as I drive.
BUT...I would be extremely reluctant to have Speedworks tune them for me. The only thing I have ever been impressed with about them is the
SPEED at which they can swipe your mastercard as they install something that should actually
WORK, but doesn't cos they botched up the job!
Next T/T, you guys can test drive to see if you like it...
