R/C Tech Forums

Go Back   R/C Tech Forums > General Forums > Nitro Off-Road

Reply
 
Thread Tools Search this Thread
Old 10-31-2007, 02:25 AM   #1
Tech Apprentice
 
Join Date: Sep 2007
Posts: 86
Default 1/8 vs 1/10

Hi expert buddies,

I am vic, I have 2 questions :

1. Is 1/8 size with eg .28 engine more fuel consumption than a 1/10 size engine eg. .15 size ? Is the difference 50% more ?

2. Is 1/8 car .28 of 3.3kg faster and better acceleration than 1/10 car of 2.2kg of .18 engine ? both are single speed.

Thanks

Regards,
Vic
vic88my is offline   Reply With Quote
Old 10-31-2007, 04:33 AM   #2
Tech Master
 
annie_himself's Avatar
 
Join Date: Apr 2006
Location: Baton Rouge, La
Posts: 1,268
Trader Rating: 5 (100%+)
Send a message via AIM to annie_himself
Default

Quote:
Originally Posted by vic88my View Post
Hi expert buddies,

I am vic, I have 2 questions :

1. Is 1/8 size with eg .28 engine more fuel consumption than a 1/10 size engine eg. .15 size ? Is the difference 50% more ?

2. Is 1/8 car .28 of 3.3kg faster and better acceleration than 1/10 car of 2.2kg of .18 engine ? both are single speed.

Thanks

Regards,
Vic
A .15 will use less fuel but I am no scientist so I cannot tell you the percentage compared to a .28.

A 10th scale can be faster, and a 8th scale can be faster. It all depends on the engine and gearing.
annie_himself is offline   Reply With Quote
Old 10-31-2007, 07:32 PM   #3
Tech Regular
 
Join Date: May 2006
Location: mt vernon il
Posts: 414
Trader Rating: 5 (100%+)
Send a message via MSN to rhymster
Default

the .15 will use less fuel and in normal circumstances considering your 1/8th scale is 4 wheel drive and the 1/10 scale is 2wd (which most are) the 1/8 should smoke the 1/10
rhymster is offline   Reply With Quote
Old 10-31-2007, 07:36 PM   #4
Tech Master
 
skeller's Avatar
 
Join Date: Jun 2007
Location: Odenville, Alabama
Posts: 1,272
Trader Rating: 11 (100%+)
Send a message via AIM to skeller Send a message via MSN to skeller Send a message via Yahoo to skeller
Default

Quote:
Originally Posted by rhymster View Post
the .15 will use less fuel and in normal circumstances considering your 1/8th scale is 4 wheel drive and the 1/10 scale is 2wd (which most are) the 1/8 should smoke the 1/10
Most all of this depends on the skill of the driver. Look at the real pros....Adam Drake will turn the same amount of laps in a 1 hour race with 1/10 and 1/8.

But for the average club racer yes.....1/8 will usually smoke 1/10.
skeller is offline   Reply With Quote
Old 11-01-2007, 05:52 AM   #5
Tech Apprentice
 
Join Date: Sep 2007
Posts: 86
Default

nope, nearly all kyosho models 1/10 are 4wd. eg. TR15, ST, pure ten on road, v one RRR, all are 4wd. Other brands too.

Last edited by vic88my; 11-01-2007 at 06:50 AM.
vic88my is offline   Reply With Quote
Old 11-01-2007, 07:04 AM   #6
Tech Master
 
Turbine_au's Avatar
 
Join Date: Jan 2006
Location: SA
Posts: 1,340
Trader Rating: 6 (100%+)
Default

Well, what cars are you looking at then?

Most 1/10th offroad race cars are 2WD stadium trucks.
__________________
It's mine: http://au.youtube.com/watch?v=usYhSWbmx6s
Turbine_au is offline   Reply With Quote
Old 11-01-2007, 09:12 AM   #7
Tech Master
 
Join Date: Mar 2007
Posts: 1,237
Trader Rating: 4 (100%+)
Default

if you are talking run time i would venture to say an 1/8 scale has a larger tank and can go over obsticles easier....in 2wd truck i see them pit about every 7 min and i see 1/8 pit every 7-9 min....course it depends on actuall vehicles and where you plan on running them
mugenlife is offline   Reply With Quote
Old 11-01-2007, 04:54 PM   #8
Tech Regular
 
Join Date: May 2006
Location: mt vernon il
Posts: 414
Trader Rating: 5 (100%+)
Send a message via MSN to rhymster
Default

i was saying 1/10 will get better fuel mileage and it will. he asked .15 to a .21 not .15 with a .15 fuel tank and .21 with a .21 fuel tank. why else would people be switching to .18 in the truggys? better fuel mileage.
rhymster is offline   Reply With Quote
Old 11-01-2007, 07:46 PM   #9
Tech Apprentice
 
Join Date: Sep 2007
Posts: 86
Default

What I mean is that 1/10 is more fuel cost savings $$ ? not the fuel tank.

I mean fuel consumption. For example, miles travelled per gallon for real cars.

If .28 fuel consumption is 50% more than .15 whereas speed and acceleration is
the same, I will choose .15,


Regards,
Victor(CPA)
Chartered Accountant
vic88my is offline   Reply With Quote
Old 11-01-2007, 08:03 PM   #10
Tech Master
 
annie_himself's Avatar
 
Join Date: Apr 2006
Location: Baton Rouge, La
Posts: 1,268
Trader Rating: 5 (100%+)
Send a message via AIM to annie_himself
Default

Quote:
Originally Posted by vic88my View Post
What I mean is that 1/10 is more fuel cost savings $$ ? not the fuel tank.

I mean fuel consumption. For example, miles travelled per gallon for real cars.

If .28 fuel consumption is 50% more than .15 whereas speed and acceleration is
the same, I will choose .15,


Regards,
Victor(CPA)
Chartered Accountant
Well a .15 will naturally use less fuel.
The power is completely determined on motor, tuning, and gearing. Also, a .12 will rev higher than a .28 any day.
annie_himself is offline   Reply With Quote
Old 11-02-2007, 06:43 AM   #11
Tech Apprentice
 
Join Date: Sep 2007
Posts: 86
Default

but, seems like 1/8 is louder and noisier than 1/10 ?
vic88my is offline   Reply With Quote
Old 11-02-2007, 09:18 AM   #12
Tech Master
 
Join Date: Mar 2007
Posts: 1,237
Trader Rating: 4 (100%+)
Default

go brushless lmao....
mugenlife is offline   Reply With Quote
Old 11-02-2007, 10:40 AM   #13
Tech Apprentice
 
Join Date: Sep 2007
Posts: 86
Default

I have an electric truck. but, the sound is not nice.

I like the sound of engine. can release tension from work.
vic88my is offline   Reply With Quote
Old 11-02-2007, 10:59 AM   #14
Tech Master
 
Join Date: Mar 2007
Posts: 1,237
Trader Rating: 4 (100%+)
Default

get a mini xray truck or get a baseball card and put it in the rim seriously though fuel costs wont be that drastic between a 10 to an 8th least not enough to ruin the fun factor. a gallon of fuel usually lasts me at least 2 weeks and if you buy right you can get good fuel for 20-25 a gallon..quarts are expensive
mugenlife is offline   Reply With Quote
Old 11-02-2007, 11:14 AM   #15
Tech Regular
 
rabidsquirrel's Avatar
 
Join Date: Jun 2006
Posts: 284
Trader Rating: 2 (100%+)
Default

I would be more concerned with replacement parts costs vs. fuel costs.

Others have said as much, but I'll restate it, the fuel cost difference between the two are likely to be insignificant when compared to other operational expense differences between the two classes.

Last edited by rabidsquirrel; 11-02-2007 at 12:15 PM.
rabidsquirrel is offline   Reply With Quote
Reply



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off



All times are GMT -7. It is currently 06:37 PM.


Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net