ECUs and Tuning Discuss Engine Management, Tuning, & Programming
Sponsored by:
Sponsored by:

Max ignition advance for N/A engines

 
Old 04-06-2018, 10:53 AM
  #1  
Junior Member
Thread Starter
 
Join Date: Apr 2018
Location: Charleston, SC
Posts: 113
Total Cats: 13
Default Max ignition advance for N/A engines

Whats up everyone? I have been searching around for timing numbers for a while and have seen mixed numbers so hopefully someone here can answer my questions.

I currently have a 1990 1.6 SNC running a Haltech Sprint 500 ecu. It does not have knock control so I haven't gone too crazy with timing. Car runs well, I eliminated the AFM and have a Cusco intake as well as headers, test pipe, and exhaust. Right now I'm at 28° of advance at 7000 RPM. I'd like to get an idea of the max timing that can be pulled without going past MBT or creating knock across all RPM ranges. I can always post the map I'm using (basically the regular haltech Miata base map with a few changes here and there)

Thanks for any help and input y'all can give me.
L337TurboZ is offline  
Old 04-06-2018, 11:01 AM
  #2  
Elite Member
iTrader: (6)
 
Join Date: Feb 2013
Location: Staunton, Va
Posts: 3,159
Total Cats: 382
Default

just a thought since all engines are NOT the same, an hour on a dyno would give real answers. Should be very easy to find a dyno in C.SC.

Run your map, add 2° across the map until you stop seeing significant improvement, then back off 2°.
ryansmoneypit is offline  
Old 04-06-2018, 11:03 AM
  #3  
VladiTuned
iTrader: (76)
 
18psi's Avatar
 
Join Date: Apr 2008
Posts: 35,141
Total Cats: 3,145
Default

at 27 you're about there on pump gas. 27-31* is what I tend to see depending on pump fuel quality
18psi is offline  
Old 04-06-2018, 12:39 PM
  #4  
Moderator
iTrader: (12)
 
sixshooter's Avatar
 
Join Date: Nov 2008
Location: Tampa, Florida
Posts: 18,907
Total Cats: 2,364
Default

A spec Miata guy I talked to who owns a dyno uses 30 degrees at WOT for the upper RPM range, fwiw.
sixshooter is offline  
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
timk
ECUs and Tuning
13
01-04-2014 07:57 AM
ThunderFox
Engine Performance
7
05-11-2012 09:18 PM
NiklasFalk
ECUs and Tuning
8
03-02-2012 03:22 AM
cowboys647
MEGAsquirt
9
01-21-2012 05:26 PM
jim_rocketmow
Prefabbed Turbo Kits
6
10-30-2008 12:27 PM


Thread Tools
Search this Thread
Quick Reply: Max ignition advance for N/A engines


Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.