No carb problems in 8 days

Old 02-28-2012, 07:52 PM
  #1  
markdunlap
Senior Member
DYNO OPERATOR
Thread Starter
 
Join Date: Jan 2004
Location: central Illinois
Posts: 459
Default No carb problems in 8 days

No chatter on this topic in a while. Nobody has any carb issues these days?
markdunlap is offline  
Old 02-28-2012, 08:08 PM
  #2  
fast75vega
Senior Member
RACING JUNKIE
 
Join Date: Nov 2008
Location: Niagara Falls, NY
Posts: 965
Default

to damn cold to find out....lol :P
fast75vega is offline  
Old 02-28-2012, 08:14 PM
  #3  
fast75vega
Senior Member
RACING JUNKIE
 
Join Date: Nov 2008
Location: Niagara Falls, NY
Posts: 965
Default

actually... i do have a question? as we got later in the season and temp dropping in the later rounds.... everyone else was dialing slower times cause of the cooler temps but my car kept running faster and faster as the air got cooler.. it would pick up at least a tenth in ET. so is that a sign that i might be running rich or something?
fast75vega is offline  
Old 02-28-2012, 08:49 PM
  #4  
TheYellaBrick
Senior Member
RACING JUNKIE
 
TheYellaBrick's Avatar
 
Join Date: Mar 2008
Location: Emmett, Idaho
Posts: 7,334
Default

Engine is just getting loose hence less friction resulting in faster revup ! :shock: :shock:

What altitude ya running at ?
TheYellaBrick is offline  
Old 02-29-2012, 06:28 AM
  #5  
fast75vega
Senior Member
RACING JUNKIE
 
Join Date: Nov 2008
Location: Niagara Falls, NY
Posts: 965
Default

Originally Posted by DrivingMissDD
Engine is just getting loose hence less friction resulting in faster revup ! :shock: :shock:

What altitude ya running at ?
track is just over 900 ft of elevation. unlike previous motors i ran... this motor always runs faster after the sun goes down and the air gets cooler. i remember when i first started racing... and i was missing my dial time and i was told cars run slower in cooler heavy air.
fast75vega is offline  
Old 02-29-2012, 07:39 AM
  #6  
coolracing
Senior Member
MASTER BUILDER
 
Join Date: Jan 2008
Location: Yooper
Posts: 168
Default

Originally Posted by fast75vega
actually... i do have a question? as we got later in the season and temp dropping in the later rounds.... everyone else was dialing slower times cause of the cooler temps but my car kept running faster and faster as the air got cooler.. it would pick up at least a tenth in ET. so is that a sign that i might be running rich or something?
Did you by chance pick up some RPM when it cooled off also?
coolracing is offline  
Old 02-29-2012, 07:47 AM
  #7  
wmeabates
Senior Member
MASTER BUILDER
 
Join Date: Sep 2005
Posts: 134
Default

I think if it gets cooler and stays dry it goes faster,unless your on the edge of being lean.But if you start seeing moisture on cars good chance of slowing down.Bill.
wmeabates is offline  
Old 03-03-2012, 05:25 PM
  #8  
TS1955
Senior Member
DYNO OPERATOR
 
Join Date: Aug 2007
Location: Lost Creek, WV
Posts: 533
Default

If you are picking up a tenth, then I'd say your carb is jetted a little on the rich side in warm weather. But be careful if you lean it out just in case you get in cool weather again. When I jet mine, I keep going richer until my MPH starts dropping off then back it down 1 jet size.

TS1955
TS1955 is offline  

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


Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service