31 votes

Why do some tuned cars have very inclined tires?

The tilt of the wheel is known as the camber angle. Tilting the wheel in that manner is called negative camber. Doing it the other way around (top outwards) is positive camber. Mounting the wheel ...
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9 votes
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Why do some tuned cars have very inclined tires?

In this specific example the car is more than likely using airbags. When you decrease or increase the height of a car it affects the tire alignment by usually causing positive camber, pushing the top ...
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8 votes
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How do I get more power out of a rotary engine?

The rotary engine is still a pump so opening it up helps it rev higher and make more power. Opening the inlet and exhaust ports is a big way to make more power at the engine. You still need the rest ...
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7 votes

2000 chevy cavalier cheap upgrades

If the question emphasis is on cheap, weight reduction is your friend For many reasons: A lighter car accelerates more quickly Because physics. Since you're planning to drag race, top speed should ...
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6 votes
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Could a modern car be modded enough to work without ECUs?

Yes, it is possible Albeit with some trade-offs. A modern-day road car is an amalgamation of several sub-systems, and electronics usually have an important role to play in them. The nice thing is ...
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6 votes

2000 chevy cavalier cheap upgrades

For most vehicles, the cheap but effective upgrades are: Advance your timing: 2 degrees of timing advance can give you a bit more umph, you may need to start using intermediate fuel instead of ...
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5 votes

How to mount a 2x4 to a cargo van wall without drilling?

There is a product "rivnut" that you can put in the hole, do up, and it locks itself into place... Like a rivet, but it has a thread and is thicker / larger. Then you can just "bolt through" - make ...
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5 votes

Can I replace my ignition coil with a ECU?

There are a number of ways to go solid-state ignition and there are a few open source projects that allow you to build your own ECU and loom and utilize an ignition system from something else. One ...
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5 votes

Why do some tuned cars have very inclined tires?

The question assumes that the car is a drivable configuration, which may not be true. This car and similar photos you have seen probably have Height adjustable suspension this allows the ride height ...
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4 votes

Is there any benefit in performing a 4/7 swap on an LS engine?

No. This modification is intended for Gen I/II Small-Block Chevy engines only. What I failed to realize was that while the cylinder numbering convention stays the same across Gen I/II SBC's, the ...
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4 votes

How to go VTEC with a D16A8 DOHC engine

The D16A8 engine is the equivalent to the ZC DOHC engine (non-vtec). The VTEC head from the D16Y8 will not bolt on. Neither will the head from a B16A1. The head on the D16A8 is superior to that of ...
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3 votes

Tuning cars from the 90's and prior

One of the most popular modifications on pre-injection cars is conversion to multiple twin choke carburetors. For example Weber DCOE carbs. Typically this involves changing the inlet manifold which ...
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3 votes

Tuning cars from the 90's and prior

You can add anything including turbos , intercoolers, fuel injection, nox injection - just takes money and technical knowledge. If you want a relevant example of design progression look at the inline ...
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3 votes

Anyway to ditch keyless ignition for ignition that uses a key?

the higher end trims, which all come with keyless ignition So, I'm going to actually go against the crowd here and say, yes, this is completely manageable. Think about it- If they sell the same year ...
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3 votes

Fuel injection modification for increased displacement

A few assumptions first: It is an open loop alpha-n type of injection system (just has a TPS, no MAF or MAP sensors, no O2 sensor, no catalyst) If the above is true, you could probably make it run ...
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3 votes
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DIY: Prepare Virago for both tall and short riders

TL;DR It's not possible to prepare a Virago 535 so that both short and tall riders can ride it comfortably. Full answer After investigating a lot into this issue, and even after trying a few other ...
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3 votes

Why do some tuned cars have very inclined tires?

It is entirely for style. This is called "camber". The tires will wear in an odd manner. The tire contact with the road is usually a rectangle on the bottom of the tire. This extreme camber makes ...
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3 votes

Performance Modifications for the EJ253 - Throttle Body Spacer?

I have only ever had one normally aspirated Subaru, and didn't mod it much, but from the mods I have had on various turbocharged Subarus over the years on some Imprezas, WRXs and my sorely missed ...
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2 votes

Why do some tuned cars have very inclined tires?

As @Compro01 said, a few degrees of camber helps cornering. Too much camber places all of the weight on a small section of the tire, making it wear out faster and reducing grip when you're driving in ...
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2 votes

Could a modern car be modded enough to work without ECUs?

There is such a beast known as an analog computer. The computer uses OpAmps to implement complex formulas in an entirely analog fashion. The formulas implemented take input from things like mas air ...
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2 votes

Anyway to ditch keyless ignition for ignition that uses a key?

Brain dump, no real experience With keyless ignition, you have a key fob, some sensors that detect the key fob, and some sort of ECU that interprets the input from the sensors. If this whole setup ...
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2 votes
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Can I use several car batteries to crank a big engine?

As long as the batteries are fully charged and in good shape, by placing two 950 CA batteries in parallel, you will get 1900 CA ... you are exactly right. Just understand what you're doing when you ...
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2 votes

How should I modify a car to live in it? How risky are used cars?

For a vehicle to live in you would be much better off with a van. Even a fairly large estate car will have much less internal space for an equivalent floor area. Another key consideration is that ...
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2 votes
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Tuning cars from the 90's and prior

I'd suggest a good starting point for you to look at is the tuning options available within the Gran Turismo games (4, 5 or 6, haven't played the earlier games so I don't know how the tuning options ...
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2 votes

Will adding a 90° O2 sensor adapter hurt anything?

In order for the O2 sensor to work correctly, the head of the O2 sensor should be located in the exhaust stream. This helps keep the sensor itself hot, which improves it's effectiveness. If you put ...
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2 votes

Potential issues wiring a variable resistor into accelerator pedal position sensor circuit

The main problem that I would expect is that you'd probably get disagreements with the computers readings, which would start messing with the EFI mapping. First problem is - does the TPS you're ...
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2 votes

Does cooler air improve turbo performance?

Cooling air into the engine is always going to be a good idea, as heat soak reduces the power of an engine. A turbo does heat air, simply by compressing it, but you will still get a direct benefit ...
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2 votes

Increase bike speed with acceleration

You can have a significant impact of the power output of your engine, but you won't achieve a huge amount and, after a certain amount 10 or 15% for example any gains will become hugely expansive. ...
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2 votes
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Does an oil filter relocation increase the risk of a dry start?

Putting the filter into a different position shouldn't cause you any issues. Having it upside down (hole side down), may create the situation you are trying to avoid, though. I take it your overall ...
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2 votes
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How to avoid (if possible) equipment damage when mounting a gramophone on a car

There were a number of attempts at this in the past with a variety of strategies. As mentioned above, some required custom formats/configurations. The link below discusses some of the issues and ...
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