UK Karting

Notice Board (2-Stroke Karting)




Re: mmmm... interesting, but.....??????
Posted by 'Hi99' on 24 Sep 2008 @ 10:54


| View Message Thread | Reply to this message |
Hi99
Joined: April 2008
Total Posts: 1
[ View User Profile ]
Hmmmm, again doing the sums with fuel at -18C…. Assuming an air to fuel ratio of 12:1 (by MASS) if the air is at 20C and fuel at -18C I work out the resultant intake temp to be reduced to 17C. Using this figure in the equation for heat engine efficiency it raises the value from 44.0% to 44.5%, so it’s a damn small increase. To get fuel into the intake at -18C would need not only a cold tank but chilled / insulated fuel pipes and carb, etc.

I’ve used fuel from various garages, used fuel up that has been left from one meeting to the next, etc, and never noticed any discernable difference. Maybe if everything is set up perfect and the driver is spot on then all the time then it might matter.

The things that are more important for us are that: our engines are in great shape, the carb is tuned in, we’re on the correct gearing, the chassis is set up right, the tyre pressures are what they should be, and the driver is driving well. When we get all this right we’ll be at the front anyway!!!! (dream on….)

Message Thread:

regular or super unleaded  by 'Tim85'   (22 Sep 2008 @ 22:23)
id like this one answered please????????????????  by 'cosgrove78'   (22 Sep 2008 @ 23:36)
Re: id like this one answered please??????????????  by 'DanMax66'   (22 Sep 2008 @ 23:43)
sounds like some of you have been standing too  by 'Chad'   (23 Sep 2008 @ 6:29)
Re: id like this one answered please??????????????  by 'richydehav'   (23 Sep 2008 @ 7:31)
Re: id like this one answered please??????????????  by 'raceinstructor'   (23 Sep 2008 @ 8:19)
Re: id like this one answered please??????????????  by 'Cadet49Dad'   (23 Sep 2008 @ 8:57)
Re: id like this one answered please??????????????  by 'blobslosak'   (23 Sep 2008 @ 9:14)
Re: id like this one answered please??????????????  by 'PGB'   (23 Sep 2008 @ 9:16)
mmmm... interesting, but.....??????  by 'cosgrove78'   (23 Sep 2008 @ 9:40)
Re: mmmm... interesting, but.....??????  by 'blobslosak'   (23 Sep 2008 @ 10:31)
Re: mmmm... interesting, but.....??????  by 'Hi99'   (23 Sep 2008 @ 10:33)
Re: mmmm... interesting, but.....??????  by 'richydehav'   (23 Sep 2008 @ 10:35)
Re: mmmm... interesting, but.....??????  by 'Hi99'   (23 Sep 2008 @ 10:42)
richy....Tank wrapped in FOUL....??  by 'Chad'   (23 Sep 2008 @ 11:10)
Re: richy....Tank wrapped in FOUL....??  by 'Hi99'   (23 Sep 2008 @ 11:12)
at last a bit of humour!  by 'cosgrove78'   (23 Sep 2008 @ 11:15)
Re: mmmm... interesting, but.....??????  by 'Hi99'   (23 Sep 2008 @ 11:14)
Re: mmmm... interesting, but.....??????  by 'RoadRat'   (23 Sep 2008 @ 13:14)
Re: mmmm... interesting, but.....??????  by 'Hi99'   (23 Sep 2008 @ 13:42)
Re: mmmm... interesting, but.....??????  by 'Reg'   (23 Sep 2008 @ 23:31)
Re: mmmm... interesting, but.....??????  by 'sonic1'   (24 Sep 2008 @ 0:12)
Re: mmmm... interesting, but.....??????  by 'SimonS'   (24 Sep 2008 @ 9:55)
Re: mmmm... interesting, but.....??????  by 'Hi99'  << You are here!
Re: mmmm... interesting, but.....??????  by 'neilaustin'   (24 Sep 2008 @ 20:23)
Re: mmmm... interesting, but.....??????  by 'Hi99'   (24 Sep 2008 @ 20:56)
Re: mmmm... interesting, but.....??????  by 'neilaustin'   (24 Sep 2008 @ 21:08)
Re: mmmm... interesting, but.....??????  by 'jnrblue91'   (24 Sep 2008 @ 21:12)
Re: mmmm... interesting, but.....??????  by 'neilaustin'   (24 Sep 2008 @ 21:21)
Re: mmmm... interesting, but.....??????  by 'jnrblue91'   (25 Sep 2008 @ 20:40)
Re: mmmm... interesting, but.....??????  by 'DavidZanetti'   (29 Sep 2008 @ 16:55)

Post a Reply:
You may post a direct reply to this message which will appear in this thread.
To post a new or unrelated message use This Form.
Reply To "Re: mmmm... interesting, but.....??????"
Email Address :   Not Registered? Click Here to register...
Password :   Passwords are Case Sensitive!   [ Password Lookup ]
Message Title / Subject :
Message :
Options : Subscribe to this thread?   [ More Information ]

Top of Page
Notice Board Index

[ UK Karting Main Index ]


News Karts and Karting Notice Board Market Place Companies Directory Tracks Directory Events Calendar Race Results Photo Gallery Links
News Karts &
Karting
Notice
Board
Market
Place
Companies
Directory
Tracks
Directory
Events
Calendar
Race
Results
Photo
Gallery
Links

UK Karting

Copyright © 1996-2018 UK Karting
Comments, Suggestions etc. mail@karting.co.uk