Stupid mechanics thread

[damn-I-Suck]

Soo many ppl slap turbos on their cars and don't know the first thing about compression, fuel injectors needing to be bigger (to be able to deliver more fuel for all that air you're shoving into the engine), fuel pressure regulators needing to be switched, possibly making cuts on the block as to lower compression ratio, reflashing the PCM so the system knows the proper air/fuel mixtures.

Basically, what HRD said about what happens when you're compression is too high. My dodge had a 9:1 ratio, which is normal for most naturally aspirated engines. A turbo would bump it up to prolly 11:1 and that engine was not meant for that kind of punishment.

Yeah, there's a lot of shit you have to do to add turbo and do it right. I am 1 1/2 year into my 2 year program and even I don't know everything you have to do for turbos. I'm not really interested in high performance anyways, I'm more into the day-to-day cars.

Personally, I think the best thing to do if you want turbo is to buy a car that already has turbo built into it from stock. Some people disagree, but that's my take on it.

 

[Solo]

Your story about your teacher reminded me of when I went somewhere to get an oil change. So I take my truck to the place to get an old change because family was paying it for me. First they ask me if I want a new air filter, I told them no. Then they told me I need to change my "Rear differential fluid". So I proceeded to tell him that all I want is an oil change. He asked me if I was sure several times so I just started saying I only need an oil change over and over. That pissed me off so much... He eventually gave up and said everything else looked perfectly fine then insisted I change my rear differential fluid. He's lucky I was in a good mood. If only I could have gotten his name I could have reported him or something.

 

[Hot Rod Dave]

LOL why you would put money into a taurus at all is beyond me. But yes its really easy to wrinkle up that o ring and cause a leak. Why it happened 3 months later is a little weird. Usually if you fuck up that o ring it starts to leak right away.

I know those plastic lines that hook to the pump are fragile. Ive replaced my share of those things. So before you go ripping your teacher a new asshole, see whats wrong first. Just seems to weird that it would give a problem 3 months later is pretty strange.

 

[Hot Rod Dave]

Your story about your teacher reminded me of when I went somewhere to get an oil change. So I take my truck to the place to get an old change because family was paying it for me. First they ask me if I want a new air filter, I told them no. Then they told me I need to change my "Rear differential fluid". So I proceeded to tell him that all I want is an oil change. He asked me if I was sure several times so I just started saying I only need an oil change over and over. That pissed me off so much... He eventually gave up and said everything else looked perfectly fine then insisted I change my rear differential fluid. He's lucky I was in a good mood. If only I could have gotten his name I could have reported him or something.

Thats a common tactic for shops that do oil changes. Shops dont make money selling you a $19.95 oil change. The real goal is to upsell you. They will check all your filters and fluids and recommend things based on mileage rather than "in need of repair." So you cant be to mad at the guy for trying to make some money off you.

Soo many ppl slap turbos on their cars and don't know the first thing about compression, fuel injectors needing to be bigger (to be able to deliver more fuel for all that air you're shoving into the engine), fuel pressure regulators needing to be switched, possibly making cuts on the block as to lower compression ratio, reflashing the PCM so the system knows the proper air/fuel mixtures.

*BOLDED FOR EMPHASIS*

Lesson #1 grasshopper in the high performance stuff. You dont cut the block to lower the compression. You cut the pistons. Cutting the block would make the compression actually higher rather than lower.

Just bored I guess. No offense meant hahahaha

 

[Pernicious-Soul]

Here's a couple pics of my car. Should have t3 turbo bolted up over weekend. With turbo psi set at 16 I should make close to 400 HP and tq.

Figured it was alright to post these here