Member Engine Poll (1 of 3)-Displacement

[permabanned]

yea everyone always brings in pumping losses but theres nothing you can do about it besides either running a 1" throttle body that you can have wide open for priuslike acceleration, or run a variable geometry TB, which is currently impossible.

[theholycow]

Those TB suggestions, if I understand them correctly, won't work. You still have to throttle it down enough to make the RPM and power you want.

There's one thing you can do, though; you can heat the air before it goes in. A warm air intake is a DIY job that hypermilers do, and obviously counteracts the effect we're discussing. Of course, if you're a speed demon you prefer cold air and a warm air intake would be exactly the opposite of what you want. If you're not, it's not going to make your car any less powerful than it is in the summer with the standard intake. Of course, it's a bunch of work and you get a cobbled-together DIY device on your car that most people would not want and would not want to build.

[permabanned]

hypermilers crack me up. they do the most pathetic shit to save 1mpg. shit like turning the car off at red lights, and heater intakes, not realizing the air goes thru there so fast it never heats up unless you put a hairdryer in there.

[theholycow]

not realizing the air goes thru there so fast it never heats up

Actually, they use the IAT sensor and measure their results, and some get their air too hot. When gas was $4/gallon (with my commute being 80 miles per day) I did a lot of reading on what they do and why they do it...

[Pinky Demon]

6.8L V10, and 1 3.0 V6...both autos.

Hopefully, a 2.3L V4 with Turbo soon!

[blauenlanze]

Hopefully, a 2.3L V4 with Turbo soon!

Good luck finding a V4

[theholycow]

Good luck finding a V4

[1974Alfa5spd]

Good luck finding a V4

[RITmusic2k]

http://www.saab-v4.co.uk/

[noob5,000,000]

pwnt

[Pinky Demon]

Hopefully, a 2.3L V4 with Turbo soon!

Good luck finding a V4

4 cylinder, V4, same thing.

[watkins]

Hopefully, a 2.3L V4 with Turbo soon!

Good luck finding a V4

4 cylinder, V4, same thing.

No.

A V4 is a (very rare in automotive applications) form of four cylinder. The most common is an I4, followed by an H4 aka boxer

[AHTOXA]

Hopefully, a 2.3L V4 with Turbo soon!

Good luck finding a V4

4 cylinder, V4, same thing.

The difference is the alignment of cylinders. A regular 4 cylinder found in Honda Civic, Corolla, Sentra and so forth, is an I4 - an inline 4 cyl. There are currently no manufacturers (in U.S. for sure) that produce a V4 in their modern cars. Boxer 4cyl and I4 are dominant.

[Tinton]

Good luck finding a V4

4 cylinder, V4, same thing.

The difference is the alignment of cylinders. A regular 4 cylinder found in Honda Civic, Corolla, Sentra and so forth, is an I4 - an inline 4 cyl. There are currently no manufacturers (in U.S. for sure) that produce a V4 in their modern cars. Boxer 4cyl and I4 are dominant.

And boxer 4cyl's are similar to V4's, they're just a flat 4 with 2 cylinders per head. Like how a Ferrari flat-12 in a 512TR is similar to a V12. That's why boxer 4-cylinders in WRX's sound so weird, they're rougher than a normal inline-4.

But why don't more manufacturers use V4's? I would think that'd be the smallest decent powered engine you could fit in a car, smaller than an inline-4. Is it because they're too rough?

[watkins]

I4 is a much more compact package than a V4, primarily because its very narrow in comparison, so it can be angled forward or back (like mine) to make better use of engine bay space and create a lower, more aerodynamic hoodline with a lower center of gravity. Boxers are even better, but they are most certainly noisy little engines.