MEGAsquirt A place to collectively sort out this megasquirt gizmo

My spark advance table

Thread Tools
 
Search this Thread
 
Old 11-15-2020, 05:23 PM
  #1  
Newb
Thread Starter
 
josh96821's Avatar
 
Join Date: May 2019
Location: Honolulu Hawaii
Posts: 31
Total Cats: 1
Default My spark advance table

I'm running 640cc floweforce injectors and a T3/T4 China charger on stock internals at 10psi. Is this spark table ok any changes I should make?
josh96821 is offline  
Old 11-15-2020, 10:06 PM
  #2  
Newb
Thread Starter
 
josh96821's Avatar
 
Join Date: May 2019
Location: Honolulu Hawaii
Posts: 31
Total Cats: 1
Default

Also here is my afr and ve currently. Sorry for the crap pics.

josh96821 is offline  
Old 11-15-2020, 10:53 PM
  #3  
Cpt. Slow
iTrader: (25)
 
curly's Avatar
 
Join Date: Oct 2005
Location: Oregon City, OR
Posts: 14,326
Total Cats: 1,181
Default

Your VE table really does us no good, it's really just the actual AFR that matters. So as long as your VE table delivers what you're targeting and you're happy with the drivability, it's perfect.

You're targeting too rich above 200kpa. No need to go below 11.4-11.6 anywhere. You'll probably never hit it unless you have a really pathetic turbo no wastegate, but 120kpa is a little lean for my tastes, and there's no reason to increase your target after 6000rpm.

Spark table looks ok in my eyes, there's some stuff around idle/800rpm that you could fix but not dangerous. I like to drop about 1 degree per psi of boost, and your 100kpa row looks correct. So you're not really dropping as much advance as I would call "safe", but at a certain point you will just be retarding too much and leaving power on the table. Only knock detection and a dyno will tell.
curly is offline  
Old 11-16-2020, 01:01 AM
  #4  
Newb
Thread Starter
 
josh96821's Avatar
 
Join Date: May 2019
Location: Honolulu Hawaii
Posts: 31
Total Cats: 1
Default

Thank you curly thats the info I was looking for ill make those changes. 🤙
josh96821 is offline  
Old 11-16-2020, 12:46 PM
  #5  
Retired Mech Design Engr
iTrader: (3)
 
DNMakinson's Avatar
 
Join Date: Jan 2013
Location: Seneca, SC
Posts: 5,010
Total Cats: 857
Default

Agreed with all Curly said.

On a ‘99, spark in boost is advanced for a tune that has not been checked for knock on whatever fuel you are using, unless E85.
DNM
DNMakinson is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
ScottyP3821
MEGAsquirt
9
06-03-2015 10:29 PM
Techsalvager
MEGAsquirt
3
06-28-2011 05:17 AM
jonljacobi
MEGAsquirt
20
11-29-2010 05:04 PM
92Miata
MEGAsquirt
14
01-04-2009 08:02 AM
Aussie Driver
MEGAsquirt
12
05-08-2006 01:20 AM



Quick Reply: My spark advance table



All times are GMT -4. The time now is 02:21 AM.