a few engine questions.

Status
Not open for further replies.
devino246

devino246

Official DIYGK Chem Nerd
Messages
3,856
Reaction score
16
Location
Lynchburg, VA
toystory_4wd said:
You want the bad news???? :roflol:
.
METRIC drops? You're telling me there's metric drops?



Wait a minit- Lost here- Four strokes equals one revolution- and we (Yeah. We. LOL) were trying to determine fuel consumption per revolution. Why'd we just divide by four?
Click to expand...

Lets hear it.

Yep. The size of a drop varies greatly, depending on fluid being measured and current conditions. http://en.wikipedia.org/wiki/Drop_(volume)

Each cylinder takes 2 revolutions to complete a cycle, so given a single revolution, 4 cylinders take in a/f mixture. Hence 3.2 drops per revolution, divide it by 4, so .8 drops per cylinder per combustion cycle.
 
devino246

devino246

Official DIYGK Chem Nerd
Messages
3,856
Reaction score
16
Location
Lynchburg, VA
Brandon1023 said:
Wow that was some pretty impressive math. ****.. lol. Can someone send me a link to some info about gear ratios? I know a bit about them, but not nearly as much as id like to know. Ust tryin to educate myself here.
Click to expand...

Assuming you paid attention in math class, you should know a little about basic ratios. There's nothing complicated.

If a vehicle is geared 3:1 from the engine to the axle, that means that for every turn of the axle, the engine turns 3 times.
 
Doc Sprocket

Doc Sprocket

*********
Messages
15,677
Reaction score
144
Location
Ontario, Canada
Devino, you gotta get out more. LOL

Impressive stuff! I had a rough day today, don't expect too much outta me. I'll be glad when the rent-a-kid is outta my house. Come to think of it, I dammed glad I'm back to work tomorrow...
 
devino246

devino246

Official DIYGK Chem Nerd
Messages
3,856
Reaction score
16
Location
Lynchburg, VA
toystory_4wd said:
Devino, you gotta get out more. LOL

Impressive stuff! I had a rough day today, don't expect too much outta me. I'll be glad when the rent-a-kid is outta my house. Come to think of it, I dammed glad I'm back to work tomorrow...
Click to expand...

Prolly true:roflol:

Rent-a-kid??
 
Doc Sprocket

Doc Sprocket

*********
Messages
15,677
Reaction score
144
Location
Ontario, Canada
Yeah- in addition to my own headaches. Had to get the whole crew back from 1.5hrs north last night, with a charging system malfunction in my truck. No stress.Nothing more infuriating than trying to diagnose an intermittent electrical problem. Figured it out this morning and managed to repair it, but not before gaining a few grey hairs...

FTR- this was the SECOND time in my life I have successfully diagnosed an intermittent electrical problem with a hammer, when conventional test methods yielded no tangible results.
 
Brandon1023

Brandon1023

needs an oil change
Messages
422
Reaction score
4
Location
Miami, Florida, Dade County 305
I have another question if someone would like to answer it. (This is a very interesting thread. Why not keep it going? Lol) Would a V8 gasoline be less fuel efficient than a V8 Diesel? Let's take a '99 Ford Excursion for example. They offer both types of engines. I know Diesel is more powerful for Torque and such means, so why do they make big SUVs and Pickup trucks with Gasoline V8s? I heard Diesel burns slower. I don't see how that works if the cylinder is emptied with the exhaust cycle. Sorry I'm so full of questions. Been tryin to figure this all out lately.
 
devino246

devino246

Official DIYGK Chem Nerd
Messages
3,856
Reaction score
16
Location
Lynchburg, VA
Brandon1023 said:
I have another question if someone would like to answer it. (This is a very interesting thread. Why not keep it going? Lol) Would a V8 gasoline be less fuel efficient than a V8 Diesel? Let's take a '99 Ford Excursion for example. They offer both types of engines. I know Diesel is more powerful for Torque and such means, so why do they make big SUVs and Pickup trucks with Gasoline V8s? I heard Diesel burns slower. I don't see how that works if the cylinder is emptied with the exhaust cycle. Sorry I'm so full of questions. Been tryin to figure this all out lately.
Click to expand...

Yep, Diesel engines are generally much more efficient than their gasoline counter-parts. Diesel fuel actually has a higher energy density than gas. One gallon of diesel contains around 147,000 BTU, while one gallon of gas contains 125,000 BTU. Diesel engines rely on the heat and compression of the engine to ignite the a/f mixture, as opposed to gas engines which require sparkplugs.
 
Doc Sprocket

Doc Sprocket

*********
Messages
15,677
Reaction score
144
Location
Ontario, Canada
Can't stand 'em! Actually since it's your thread, you can pretty much talk about anything you want! (except politics, site "no-no"). I may move this to "Off Topic", though...
 
S

sexyvicta

New member
Messages
806
Reaction score
2
Russ2251 said:
...Or more prosaically, 'transverse mounted'.
First time I saw this configuration, it was in a '62 Mini Cooper (first built was in '59) with a 4 speed manual trans.
Similar to this:
Click to expand...

original minis are just called minis(or sometimes austin 7, reily elf etc etc) . The mini Cooper and cooper S were like a go fast model with special bits made/designed by Cooper(the f1 constructor from the 50s and 60s). Kind of like a Shelby Mustang.
 
Rustydog2010

Rustydog2010

NZ Nutta :|
Messages
945
Reaction score
2
Location
New Zealand
Brandon1023 said:
For example, in my neighbor's lexus, he has an inline V6.
Click to expand...

He has a what?

Inline 6:


V6:


I think i know what you meant, but will just clarify anyway, cause im bored. :D
 
Status
Not open for further replies.
Top