Thursday, February 28, 2008
C4 Corvette speakers - what really fits
Now, the trouble with the Bose system is that it's usually recommended you replace the speakers along with the head unit, because Bose put amps in the speakers. So I went speaker shopping. Unfortunately, the various stereo guides I've found online and in stores all say conflicting things. I checked at Wal-Mart, Best Buy, and Crutchfield, and no two guides said the speakers were the same size! So, tonight I went and measured the speakers to find out the truth. Here are the [i]real[/i] speaker sizes for a 1986 Corvette with a Bose stereo system.
Up front, Wal-Mart said the speakers were 4", Crutchfield said the closest size would be 6 1/2", and Best Buy said that the speakers were 6" x 4" ovals. The truth is that they are 7" square grilles with 4 1/2" round speakers behind them. So the win goes to Wal-Mart, with Best Buy's recommendation being close enough to fit hidden behind the stock grille without a hack job. The 6 1/2" speakers could possibly fit, but it would be tricky to make it look right as they don't look like they'd fit behind the stock grille or completely cover the opening. (It appears that a lot of people on Corvetteforum.com have made 6 1/2" speakers fit, however.)
In the back, Wal-Mart didn't list a speaker size, Crutchfield said that 6 1/2" would be the closest size, and Best Buy said the closest size was a 9" x 6" oval. The grille is a large irregular shape, but behind this was a set of 4 1/2" round speakers, again. However, they are stuck inside a 9" x 6" cutout with an adapter! And it also looks as if it wouldn't be terribly hard to cram a 6 1/2" in there while leaving the original grille in place. So Best Buy takes the win for the rear speakers, but this time Crutchfield's recommendation is easier to follow.
Tuesday, February 26, 2008
Some pictures of the Ram 50
I've found a pretty interesting forum at Project Zero G, a site dedicated to rear wheel drive turbo Mitsubishis. They've got the largest library of RWD 4G63 information I've found online.
Labels: D50 pickup
Saturday, February 23, 2008
One of the downsides to owning a Corvette...
Thursday, February 21, 2008
Mad Scientist Matt's Lair - The Book?
The Lotus of gas mileage?
But one thing worries me: It uses a front-opening door, Isetta-style. This sounds like it would create the same safety hazard it did on the Isetta - if you're in a head-on collision, how do you open the door to get out? It looks like it may be possible to get out the hatchback in a Loremo, which could be a way around that problem.
Sunday, February 17, 2008
I didn't really need another project, but it happened anyway,
Yesterday, he had a wheel fall off.
Technically, he had a lower ball joint break, so the wheel actually stayed on the truck, but the wheel was canted over at a crazy angle. The police complained he was blocking the road with it, so he had pulled it off the road with a lawn tractor. Still, he was kind of worried that the cops wouldn't like it sitting on someone else's property with a broken suspension.
Roy wondered if I'd be interested in it. While Kelly didn't want it around the house (quite understandable; wait for the pictures of it), I thought it might make an interesting shop truck at work, and the price was quite attractive, since it was free. I originally thought I'd probably have to call a wrecker and have it towed. But when I got to the truck, I saw I wasn't really in for anything that difficult. The ball joints were simply attached to the control arm with three bolts, and the bolts weren't even too rusted. The weather report warned of storms coming in, but I saw my chance and went to work. I managed to remove the ball joint, so Roy and I then went searching for new ones. To my surprise, the local AutoZone had two. (I wanted a second one since I figured the other side has to be equally shot.) So I bought them and managed to get the broken ball joint installed on the side of the road before the storm hit. I'll take it up to work sometime later this week. Right now it's parked at Roy's house.
The truck had an interesting surprise. I checked it for stickers or part numbers under the hood to see if I could figure out what sort of engine it had. Sure enough, there was a sticker in the back of the engine compartment saying "Engine code: G63B." For those who don't speak Mitsubishi, 4G63T is the Mitsubishi engine code for the motor found in the turbo Eclipses and the Lancer Evolution. Wikipedia seems to think it had a different engine altogether, but I suspect that's about as likely as the claim it will run happily on E85.
I'll get some pictures up soon.
Labels: D50 pickup
Wednesday, February 13, 2008
A fairly minor setback
Except that, given where I work, it makes a bit more sense to whistle up a different ECU out of our small collection of unsellable units than to go and hunt down a resistor pack. I'll need a V3.0 or higher unit to get that crank trigger working anyway.
Labels: Dodge Dart
Monday, February 11, 2008
The gas mileage evildoers of eBay
My first target is what appears to be a cheaply made knock-off of a product I've blogged about before, the Tornado Fuel Saver. Not only is it cheaply made, it's cheaply photographed, too. Seller couldn't afford more than 72 by 80 pixels for his photo. (This guy appears to be selling the same thing but with a bigger photo, allowing you to see just how poorly made this thing is.) I've blogged about the "genuine article" reducing performance when tested on a dyno before. Since there's already a lot of notes on why the Tornado and its ilk are scams, I only feel it necessary to comment on one particular issue with this knock-off. They've used slit bends to form the vanes. This significantly weakens the base of the vanes and invites cracks to form. There's a good chance that the vanes could break off and get sucked into the engine. Perhaps that's why "Peter Pan" used such a small photo. The Tornado may be flim-flam, but at least it's well made flim-flam.
This guy puts the names of some better known rip offs into his auction. So he's not only ripping off consumers, he's ripping off trademarks (couldn't happen to a nicer bunch of trademark holders, though, could it?). This one is good for a few laughs if you're into material science, such as "Made of strong alloy zinc." Zinc's mostly used for cheap castings where strenght is not a big concern, stuff like the metal emblems on my Dart. Extra giggle points for using the phrase "cambusting chamber." Sounds worse than getting metal shards sucked into your intake.
This auction is for another gas mileage scam that refuses to die, the gas line magnet. The EPA's tested these fuel magnets time and time again. And they never work.
Another classic rip-off is the "ebay chip," which isn't a chip at all, but a resistor that you splice into the coolant sensor line. This forces the engine into warm-up mode, making it add more gas. This seldom improves matters as many engines are tuned cautiously from the factory and run fairly rich as it is under full throttle; some motors even gain power when you lean them out from stock. Amazingly, this device that dumps more fuel into the engine than it needs is now being rebranded as a fuel economy booster! They're really too numerous to count, but I've chosen a few standouts that offer extra laughs: This one, for its claims of MPG and power gains being higher than Jerry Garcia, and this one, for inexplicably wading into the abortion debate.
Let the bidder beware!
Sunday, February 03, 2008
A Super Bowl post: Delusional football fan, or prank?
Labels: Automotive Awefulness
Saturday, February 02, 2008
More parts for the Dart
I'll post the part numbers once I'm able to confirm they do, in fact, fit.
Labels: Dodge Dart
Wondering if there's any news on the Dart?
Labels: Dodge Dart