Club Cobra GasN Exhaust  

Go Back   Club Cobra > Engine Building, Tuning, and Induction > Small Block Talk
Not accelate at 5th gear Not accelate at 5th gear
Portal Register FAQ Community For Sale Gallery Calendar Today's Posts

Keith Craft Racing
Nevada Classics
Keith Craft Racing
Main Menu
Portal
Forums

Module Jump:
Nevada Classics
Nevada Classics
MMG Superformance
Advertise at CC
Banner Ad Rates
Keith Craft Racing
MMG Superformance
MMG Superformance
October 2025
S M T W T F S
      1 2 3 4
5 6 7 8 9 10 11
12 13 14 15 16 17 18
19 20 21 22 23 24 25
26 27 28 29 30 31  

Kirkham Motorsports

Like Tree8Likes
  • 1 Post By Tommy
  • 2 Post By Buzz
  • 1 Post By twobjshelbys
  • 1 Post By CHANMADD
  • 1 Post By Tommy
  • 1 Post By Racer_X
  • 1 Post By Texasdoc

 
 
LinkBack Thread Tools Rate Thread Display Modes
Prev Previous Post   Next Post Next
  #1 (permalink)  
Old 05-05-2017, 04:29 PM
CC Member
Visit my Photo Gallery

 
Join Date: Dec 2011
Location: Sapporo,
Posts: 13
Not Ranked     
Default Not accelate at 5th gear
My small block 363 with Quick fuel carb SS750 is good between 1st and 4th gear.
It has good response and stable AFR around 12.2~12.5.
But I am always frustrated at the time I fully accelerate at 5th gear in the racing track.
It reach around 130~140mile, AFR is around 10.0~10.5.It almost not accelerate smoothly. Until 4th gear it has been fine.
I guess it is short of air at the high speed range like over 130miles.
AFR show me "Too rich".
But my carb is 750cfm ,it's a little too big one for 363.(363/2*6500/1728*0.9=614)

I have little knowledges about carb setting.(and English,because I'm Japanese)
What should I do ?

Please someone give me any advice.

Jet setting is kept original from the factory.

Superformance Mk3, 6500miles ,I love driving at racing tracks.
Reply With Quote
 

Tags
carb, quick fuel, setting

« Previous Thread | Next Thread »

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 On


All times are GMT -7. The time now is 04:29 AM.

Contact Us - Club Cobra Home - Archive - Top

Powered by vBulletin® Version 3.8.0
Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.6.0
The representations expressed are the representations and opinions of the clubcobra.com forum members and do not necessarily reflect the opinions and viewpoints of the site owners, moderators, Shelby American, any other replica manufacturer, Ford Motor Company. This website has been planned and developed by clubcobra.com and its forum members and should not be construed as being endorsed by Ford Motor Company, or Shelby American or any other manufacturer unless expressly noted by that entity. "Cobra" and the Cobra logo are registered trademarks for Ford Motor Co., Inc. clubcobra.com forum members agree not to post any copyrighted material unless the copyrighted material is owned by you. Although we do not and cannot review the messages posted and are not responsible for the content of any of these messages, we reserve the right to delete any message for any reason whatsoever. You remain solely responsible for the content of your messages, and you agree to indemnify and hold us harmless with respect to any claim based upon transmission of your message(s). Thank you for visiting clubcobra.com. For full policy documentation refer to the following link: CC Policy
Links monetized by VigLink