Miata Mods - New Suspenders

With 105k miles over the course of 21 years, the Miata's stock shocks were more than tired. Not quite as gone as the ones were on the on the previous red Miata, but bad enough that the car wasn't handling nearly as well as a Miata should.

Looking to make the car's handling a tad more aggressive and the ride firmer, I went to the Flyin' Miata website and ordered up their "Stage 1.5" suspension kit. Consisting of new adjustable Tokico adjustable shock absorbers, custom Flyin' Miata lowering springs, new rear top hats (for increased rear suspension travel) and elastomer bump stops, this kit sounded like exactly what I was looking for. They advertise the kit as having a "killer ride with extra suspension travel in the rear and handling that will handle anything from canyon carving to full-on racetrack use." Yep, sounds great for the relatively-smooth roads in these parts.

I wanted it slightly lower, but not too low that the lower edge of the front bumper would scrape on the driveway...

...or the many speed bumps in our neighborhood.

The original plan was to attempt to install this kit myself, but the more I read about the install, the more I realized that my toolbox (and skill level) was not up to snuff. After asking a few friends, I was directed to a San Diego shop that handled the task for a very reasonable price.

front

rear, the purple thing is the new travel-increasing top hat

One of the nice things about the shocks is that they are easily tuned. Turning the adjustment screw on the top of each corner affects both the compression and rebound damping.

I was a little concerned about the stiffness of the ride on the drive back after picking the car up, but once I popped the hood and trunk, the reason was clear. All four were set at the firmest setting of 5. Dialing back to Flyin' Miata's recommended 3 front and 2 rear yielded fantastic results. The car settles down far quicker after hitting impacts and, most surprisingly, it's far quieter. I didn't realize just how much the noise stock bits were making. Overall it feels like a completely different car. Now I just need to make a run up Palomar Mountain to see how it handles in a more challenging environment.

Miata Mods - Little Things

Not much to update with the Miata over the past few weeks. But it's now 100% legal, having easily passed California's strict smog test.

A fresh California plate now graces the (scratched and crazed and to be eventually repainted) rear fill panel.

And, to better interface with the car, a Flyin' Miata pedal kit was installed.

My driving shoes of choice Converse All-Star slip-ons, but they're just a tad bit too narrow, making it difficult to rev match when downshifting. And if the soles are wet (granted it doesn't happen all that often in San Diego County), they're a bit slippery. All better now - these bolted-on CNC aluminum plates have definitely improved traction, and having the extender on the accelerator pedal makes me wonder how anyone can really drive a Miata without one.

Miata Mods - Bodywork, Pt. I

I really dislike driving a car with body damage. A few scratches are tolerable, but major blemishes or dents really grate on me. So once the ignition system was brought back to life, an appointment was made with a local detail/light body shop (my term for it that as they specialize in automotive cosmetic issues, not major collision damage) to take care of a few things.

The rear quarter dent was pulled, filled and repainted, going from this...

 ...to this:

still needed - replacement side marker cover

Instead of buying some chrome-plated replacement mirrors, the covers were sanded and resprayed. Before...

...and after:

And three moderately-sized dings, like this...

...were popped out.

And finally, the world's ugliest antenna was replaced with a shorty amplified mast.

But first I had to remove the stubborn base of the old one.

A Phillips screwdriver and and Vicegrips on the base...

...yielded nothing. So out came grandpa's old Black & Decker drill (along with a temporary case of Tourette syndrome):

Once the base was gone (and unceremoniously dumped in the trash), the power lead was routed through the trunk and up to the switched power line on the back of the radio head unit.

Yep, I had to remove the center console and radio yet again. But that's okay as the end result was worth the effort.

Nice, subtle and low-profile. Too bad the reception is far worse. I'll have to figure that out sometime in the future. For now, I just stream my local NPR station* through my phone via the auxiliary input on the head unit.

I still want to take care of the front bumper and rear finishing panel (plastic panel between the taillights), but those will come in time.

*the only FM station I listen to anyway

Miata Mods - Spark

Spark, fuel and air - the three essential ingredients needed for an internal combustion engine to function. With the bad coil and spark plug wire causing the misfire that was described in a previous post, the silver car wasn't street-drivable. So the first thing ordered were new ignition parts to get the car back on the road.

Most importantly, a replacement Mazda ignitor/coil was sourced...

 ...which is connected to the spark plugs by way of the spark plug wires (duh). The Bosch-brand wires of unknown age were pulled...

 ...and replaced with a set of 8.5mm wires from Magnecor (who seemingly have a web presence that hasn't been updated since the mid-90s). 

They cost more than the standard-grade replacement wires, but have a lifetime guarantee. And, from what I have read, Miata's B6ZE(RS) engine consumes wires evevry 30k miles or so.

And finally, a set of NGK plugs were screwed into the engine's alloy head.

The old ones weren't bad, but I felt it best to cover all of the electrical bits in one fell swoop.

Considering I was replacing broken/worn components, it's not surprising that the difference in driveability and performance was night and day. What was surprising was how much better this engine felt as compared to the red car. It just seemed to sing whereas the red car's engine was a little bit more muted.

I don't know the exact age or mileage of the ignition components on that car, but I am guessing that it still had the original ignitor/coil providing the electrical pulse. The wires and plugs had likely been replaced within the past couple of years.

Once I was able to take the silver car out for an hour-or-so ride, I felt very confident that I had made the right choice in selling the red car and keeping the silver one. And now that the car could be driven, I could start doing more work to it.

Miata Mania - Project List, Pt. II

Okay, so the red car sold to a woman in her late 30s within a few days of posting it on the local Craigslist. After almost getting into two fender-benders during the 30 minute test drive, I don't have much faith that the poor car is long for this world with her as the owner. She seemed very easily distracted and somewhat of an airhead. Oh well, at least I had the cash in hand - the same amount that I had spent on the car a few months prior. Since she was new to the area and didn't have an easy way to pick up the car (I thought of the Coaster commuter train after the fact), I offered to deliver it to her San Diego apartment for her. Here's the last shot, sitting outside her apartment and sporting the alloy "Daisy" wheels from the silver car:

The grrrls drove me back home and I started formulating the plans for my new blank canvas.

Like the project list I made for the red car, I wanted to make the car look better, perform better and enhance safety and comfort. Nothing too flashy or out-of-character for the car, and taking advantage of a deep pool of enthusiast knowledge from these cars being well-loved and modified for the last twenty-plus years.

Engine/Drivetrain
First, to get it to run properly, a new ignition system was ordered. Ignitor/coil, spark plugs and wires to replace the damaged ones.

With almost two year-old oil in the crankcase (the car had set for over a year prior to my purchase), and who knows how old the coolant, brake fluid, trans fluid and diff oil, it's time to flush and refresh the fluids. The clutch pedal has too much "dead travel" before engaging, but three minutes under the dash with 10 and 12mm open-ended wrenches took care of that.

And after crawling around the underside of the car while it was on jackstands, a fair oil leak was discovered. Thankfully it's just from the valve cover gasket, a common failure with these engines and a quick and easy fix.

Chassis 
Thankfully the original shocks aren't as bad on the silver car as they were on the red car. And remarkably, the front end sits about 1" lower than that of the red car. Regardless, the shocks are tired and I still plan on making the same upgrades that I had planned for the red car. Flyin' Miata Stage 1.5 suspension kit and related bracing to stiffen up the chassis.

Body
I was fortunate to find a well cared-for and always garaged example in the red car. The silver one is very nice overall, but has some light bodywork to attend to. The goal is to get the car to a similar level as the red car. Clean and straight, but not go so far as to do a full repaint. Repair the rear quarter panel and bumper, re-spray the mirror surrounds, do some paintless dent removal and refinish the front bumper. The faded wiper arms desperately need a fresh coat of paint.

Above and beyond that, the same OEM front air dam, shorty antenna and Hard Dog roll bar that were also planned for the red car.

The trunk had a slight water leak from the optional hardtop attachment points, repaired with $2 worth of Home Depot-sourced o-rings:

Thankfully I don't have to spring for a new top, the glass window-equipped version is in great shape.

Interior
Since the OEM speakers in the silver car were totally fried, I didn't see it fit to swap them out with the mid-range aftermarket speakers that were in the red car. A new set of door and headrest speakers will be installed. The distance between the brake and gas pedal is slightly wider than that in the red car, and my All-Stars have a hard time matching revs, so a Flyin' Miata pedal kit is on order.

I had planned on replacing the all-plastic steering wheel on the red car with something nicer (and Italian), but I will probably wait a bit until undertaking that on the silver car. The leather-wrapped wheel on the silver car feels quite nice, and there are better places to spend money.


I've already tackled a lot of these projects, I've just been behind (and uninspired) in posting. Stay tuned.

Decision Time

Not wanting to hold on to two Miatas of the same vintage, one was going to have to go. 

 (pic taken after I had already swapped the wheels, see below)

The trouble was, having limited discretionary funds, I couldn’t afford to get the silver car registered and road-worthy in order to properly evaluate it against the known entity of the red car. Plus, an overly-aggressive underhood cleaning by yours truly kicked the crap out of the silver car’s ignitor/coil module. One of the spark plug “outlets” ended up cracked and charred - possibly from moisture entering. 

I don’t really know if I actually caused all of the damage or just exacerbated what may have already had one foot in the grave. But I do know that after the engine was considerably cleaner, it ran considerably worse and would not rev over about 1,500 RPM without the number three cylinder misfiring. At least that part is one of the known weak spots of this marque, with an average lifespan of 60-80k miles. With nearly 102k on the clock, the part was likely on its last legs anyway. The silver car felt good during the brief test drive and pre-cleaning, short drive around Carlsbad, but not enough seat time was spent to have real confidence that it was going to be a reliable car.

So, which car would be sold? Do a quick flip of the silver car or the slightly more-involved and risky selling of the red car?

First the evaluation.

Body

One of the reasons the silver car was aggressively priced was due to the minimal damage to the rear quarter panel. The paint wasn’t quite as shiny as that on the red car, but it came back to life after a clay bar treatment, a couple of polishings and two coats of wax. However, the paint was missing completely on the tops of the rear view mirror surrounds:

A few deep door dings sullied the body in a few places, the worst of which was on the hood.  As previously mentioned, the top is in excellent condition and has an upgraded glass rear window. The car also sports the world’s ugliest aftermarket replacement antenna in place of the OEM power antenna. 

Lots of spider webs and egg sacs were stuck to the undercarriage.

Interior

Aside from it smelling somewhat of bad carwash fragrance and having a thick coat of Armor All adding too much sheen to the abundant plastic and vinyl surfaces, not much was needed here. The front speakers were shredded paper OEM units and the most of the light bulbs in the radio were burned out. The owner’s manual, passenger-side floor mat and lighter were all absent.

Drivetrain

Since the car had been parked for more than a year before my acquisition, an oil change was high on the list of tasks – whether or not I decided to keep this car. The oil itself still looked good and light, but the filter was dated FEB 09. And I do know from this door jamb decal that the oil was changed once about twenty or so years ago.

and the shop even over-inflated the tires by 9 PSI.

The almost two year-old oil would have to go. The ignitor/coil, referenced above, would also have to be replaced, along with the spark plug wires. Running the old license plate through the CA smog test history website showed that the car has consistently passed the inspection. There was an oil leak coming from the crank sensor location which dripped oil on the back side of the engine and on to the transmission. No big deal, a cheap and easy fix. It’s been too cool out to check the function of the A/C, but even if it was in need of a recharge and leak fix, the cost to repair is minimal. The red car didn’t even have A/C anyway.

Suspension, Brakes and Tires

The shocks on the red car were about 90% gone with very little damping left, but the original shocks on the silver car felt about 75% gone. Not great, but not in as much of an urgent need of replacement. Plus there are no virtually-impossible-to-chase-down squeaks on the silver car. The brake pads still had a generous amount of life left in them, and the rotors were thick and straight. The BF Goodrich tires on the OEM “Daisy” seven spoke wheels were down to the wear bars and showed significant cracking.

So, on the surface a lot of stuff checked out well for keeping the silver car and selling the red one. The higher-level of optional equipment, such as the A/C...

...cruise control...

 ...power windows...

  ...and leather-wrapped steering wheel...

...along with the fresh soft top and preferred silver color outweighed the relatively small list of things to attend to. Plus, keeping the silver one would give me more, much-needed Saturday afternoon wrench-turning projects.

The decision was made – the red car had to go.  Some time was spent moving many of the mods I had made on the red car over to the silver one. Wheels...

 ...headlights and headlight surrounds and radio head units were swapped:

 The aftermarket sill plates...

...owner’s manual, passenger-side floor mat and lighter were all swiped from the red car, as was the battery disconnect.

A little clean up of the red car and some new pix and description were posted to Craigslist. 

More to come...

Miata Mania - The Sickness Spreads

To paraphrase Lay's potato chips and their "betcha can't eat just one" tagline, it seems that my Miata addiction is not unlike an addiction to junk food - I can't *have* just one. Like a potato chip, Miatas are cheap, plentiful and far-too-easy to buy. Especially when one is grossly-underpriced.

I've been hitting Craigslist for the past few months, looking for odds-and-ends to pick up for my car. Things like wheels, trim bits, hard tops and complete, wrecked cars have piqued my interest and been chased down from time-to-time. Searching both the auto parts classifieds and the cars for sale by owner (with a max price of $2k) have netted some interesting finds. Including this silver '91:

I wasn't at all in the market for another complete and straight Miata, but the listing was too appealing - and the ad had only been posted about an hour prior to me seeing it. Thankfully the car was close to work, so I borrowed the shop truck and drove over to take a look. What I saw I liked; for the most part at least.

This woman approached me during my test drive and asked if I was selling it -

turns out she owns a yellow Miata.

Yes it's another '91, but the car has far more options than the elemental and pure red base model car I already had. Factory-equipped with air conditioning and anti-lock brakes. Plus, as a "B" package, this car also featured power steering, power windows, cruise control, alloy wheels, a leather-wrapped steering wheel, factory headrest speakers and a power antenna (no longer present on this car). Every option except the desirable limited-slip rear differential. None of these options matter much to me. Living in coastal northern San Diego County, I have little use for these comfort and convenience options and prefer the feedback provided by the manual steering in the red car. But all are good to have for future resale, should the time come.

Not only was this a relatively-loaded specimen, but it was also a clean, low-mileage (102k) car that was being sold by the original enthusiast owner. She loved the car, but got spooked after getting grazed by a lifted pickup truck on a local freeway exit ramp in late 2010.

After the incident, she drove home and parked the garage. That would be the last time she drove the car. She now drives a boring Nissan Murano. Not realizing the true market value, she priced the car closer to the blue-book value and hoped for the best.

A brief test drive made my decision to purchase easy. It had fewer squeaks than the red car, a less-faded interior and the top was newer and had been replaced with a unit with a glass rear window. A tonneau cover was also included - all major plusses. However, the tires were cracked and worn down to the wear bears. And the paint, while in a preferred and less-flashy silver, wasn't as nice as on the red car. The oil filter was dated Feb '09, but the oil still looked okay. No matter, it was a major deal at her asking price. So that's what I offered.

I had sold a mountain bike the previous weekend, so I had most of the cash on-hand. A trip to the bank the next morning secured the balance.

Since the registration had expired, and since the seller had a few extra, unused tows from her annual AAA membership, she offered to have the car flat-bedded the five miles to my house, free of charge.

It was home 24 hours after first laying eyes on it.  Then I started making plans.

To be continued...

Smug Parking Only

The local Whole Paycheck Foods has a section marked as "Fuel Efficient Vehicles Only". I am under the impression that they are referring to hybrids, diesels and electric cars. Of course the painted markings don't keep my ≈26MPG Miata out.

After all, it's far-more green to properly maintain and keep a twenty year-old car running than it is to consume the materials needed to build a new car. Plus, relative to the van, the Miata goes 60% farther on each gallon of fuel.

Miata Mods - Project List

Having owned the Miata for a couple of months now, I've spent enough time evaluating the car and planning what I want to do to it long-term.

Overall I'm very happy with the car - both how it looks and how it runs. I'd feel confident driving it cross-country tomorrow, even if an NA Miata wouldn't the best vehicle to tackle long stretches of Interstate with. However, there are still a few areas that I feel that the car can be improved upon. The theme is quite simple: nothing incongruous, everything reversible. Keep the spirit of a simple, fun, lightweight, low-cost roadster intact. 

A few projects have already been tackled:

Cleaning, polishing and waxing - most happened within 24 hours of bringing the car home. Wheel wells and various suspension parts were cleaned up a few months later when I had the wheels off to bolt on the new set.

Audio - backdating to an OEM cassette deck with modern iPod input and adding a storage cubby to the center console; replacement headrest speaker install. (here)

Headlamp upgrade - E-code headlamps and Hella bulbs. (here)

And now the to-be-done list. This is the plan as it currently sits in my little brain, subject to change without notice and on a whim.

Chassis
Shocks, springs, bumpstops and NB Miata "top hats" to refresh the tired, twenty year-old suspenders that are currently on the car.

Bracing - significantly tighten up the chassis with frame rails...

...and a rear subframe brace:

Exterior
OEM front air dam for enhanced high-speed stability and to help finish off the appearance of the front end.

Hard Dog sport roll bar for safety as well as a bit more chassis bracing.

Raked shorty antenna - get rid of that ugly 3' steel whip that currently blemishes the right rear quarter panel.

Top - a glass-window soft top would be a nice upgrade on down the line, but not needed right away.

Interior
Component speakers, as more high-range is needed to help cut through the top-down wind noise.

Nardi steering wheel and shift knob, to provide better feel than the all-plastic, base-model wheel and knob that the car currently has.

Maintenance, etc.
When the odometer turns over at 100k miles, resetting the maintenance schedule. Engine, transmission and differential oil and coolant.

And once the current parts are worn out, upgrading the tires...

...and brakes/rotors and adding stainless steel lines and high-performance brake fluid.

Yep, that's a few weekend's worth of projects worth of work. Now to scrounge up the money to pay for it.