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Unread 09-16-2015, 12:14 PM   #1
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Default 4 cylinder vs v8

My friend insists that 4 cylinders are faster than v8s. His argument is that modded 4 cylinders can destroy a v8. I don't know much about cars but I would think all you'd have to do is mod your v8 to keep up with a modded 4 cylinder. I just doesn't make since to me. Lcan someone please tell me what is faster modded and not modded and why?

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Unread 09-16-2015, 03:12 PM   #2
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Anyone who speaks in bizarre absolutes is an idiot.

If 4 cylinders could reliably produce as much power as a larger motor, why would there be larger motors?

Or maybe its a conspiracy by the oil companies to get us to buy more gas
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Unread 09-16-2015, 05:55 PM   #3
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No offense but your friend sounds like a typical ricer idiot. There is no universal truth here. Yes, 4 cylinders can be modified to produce huge horsepower. This can be done with V8's as well and rather more convincingly.

What do all the fastest cars in the world, both on the track and drag strip, have in common? Not a 4 cylinder engine in the lot.
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Unread 09-16-2015, 07:49 PM   #4
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Originally Posted by enderx475 View Post
No offense but your friend sounds like a typical ricer idiot. There is no universal truth here. Yes, 4 cylinders can be modified to produce huge horsepower. This can be done with V8's as well and rather more convincingly.

What do all the fastest cars in the world, both on the track and drag strip, have in common? Not a 4 cylinder engine in the lot.
Nor do they all have big V8's, especially in todays market where more technology is being used instead of brute force...

The fact of the matter is, it depends on what 2 engines, or cars we are talking about. In general, yes a V8 is more powerful, but the latest turbo 4cyl engines make the same power as many common v8's. This has always been a hug debate, and always will be on who is best.

Below is my dyno sheet, stock engine, only intake and exhaust parts bolted on, and a tune. Thats all wheel hp from a very lightly modded 2.0L 4 banger.
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Unread 09-16-2015, 09:42 PM   #5
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Nor do they all have big V8's, especially in todays market where more technology is being used instead of brute force...

The fact of the matter is, it depends on what 2 engines, or cars we are talking about. In general, yes a V8 is more powerful, but the latest turbo 4cyl engines make the same power as many common v8's. This has always been a hug debate, and always will be on who is best.

Below is my dyno sheet, stock engine, only intake and exhaust parts bolted on, and a tune. Thats all wheel hp from a very lightly modded 2.0L 4 banger.
What's the most powerful naturally aspirated 4 cylinder right now in production? Pretty sure turbo is 325hp from Ford.

You can have a fast 4 cylinder or a slow V8. But right now I don't know of any sports car V8 under ~425 horsepower.
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Unread 09-18-2015, 10:25 AM   #6
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The answer is that it depends. You can beat a stock v8 with a modded four cylinder, but for the best answer to your question is that usually no stock 4 cyl will beat a v8. It may be more efficient, but performance wise, no absolutes.

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Unread 09-19-2015, 09:23 PM   #7
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What's the most powerful naturally aspirated 4 cylinder right now in production? Pretty sure turbo is 325hp from Ford.

You can have a fast 4 cylinder or a slow V8. But right now I don't know of any sports car V8 under ~425 horsepower.
Exactly, my smaller, cheaper 4 cyl makes about that. I have no engine dyno time, but if you calculate it out, im at about 430hp AND TQ at the crank, same as your V8, oh, and i get better gas milage...

This debate will go no where....lol
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Unread 09-21-2015, 01:25 PM   #8
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Originally Posted by pbasil1 View Post
Exactly, my smaller, cheaper 4 cyl makes about that. I have no engine dyno time, but if you calculate it out, im at about 430hp AND TQ at the crank, same as your V8, oh, and i get better gas milage...

This debate will go no where....lol
Yeah but v8's will make big power more reliably. A good amount of work to get your 4 banger where it is to compare to what a stock modern v8 makes. Smaller engines need a lot more boost to make a comparable power increase to what you need in a v8. 4-8lbs of boost makes a lot of power in a big engine.
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Unread 09-21-2015, 01:43 PM   #9
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Debates are not necessary as every application has a different set of requirements.

Comparing this base model to this modded engine is foolish and will only lead to my dick is bigger than yours arguments. Keep that silliness for trolling on youtube.

Regardless of e-peen larger engines in general will be able to produce more horsepower at equivalent levels of reliability at a trade off of more weight and fuel consumption due to the increased inertia.

Mix the requirements of Power, Reliability, Efficiency, and Mass (Even audible Aesthetics play a part) and each application becomes unique.
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Unread 09-22-2015, 07:25 PM   #10
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Quote:
Originally Posted by pbasil1 View Post
Exactly, my smaller, cheaper 4 cyl makes about that. I have no engine dyno time, but if you calculate it out, im at about 430hp AND TQ at the crank, same as your V8, oh, and i get better gas milage...

This debate will go no where....lol
Yours is not stock. I think we're comparing stock vs stock.
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