Ignition dwell settings - Miata Turbo Forum -Boost cars, acquire cats.

Welcome to Miataturbo.net   Members

MEGAsquirt A place to collectively sort out this megasquirt gizmo

LinkBack Thread Tools
Old 03-27-2015, 12:58 PM   #1
Junior Member
Thread Starter
iTrader: (1)
Join Date: May 2014
Location: New Orleans, LA
Posts: 69
Total Cats: -45
Default Ignition dwell settings


Need help with dwell settings. Tried searching and all i found was spark blowout issues. Ive read some articles on msextra about dwell but still ignorant to the topic. Anybody with a similar setup that would like to share your experience that would be great.

My current settings are:

Cranking dwell(ms) 3.5
nominal dwell(ms) 3.5
spark duration(ms) 0.7

When i had my Cranking dwell(ms) set to 7.5 i could still smell unburnt fuel right after WOT.
Now it seems like a cleaner burn but i still think it can come down just a little bit more.
I'm afraid of burning up the module or coils. any input would help tremendously.

Last edited by 97miatanola; 03-27-2015 at 01:29 PM.
97miatanola is offline   Reply With Quote
Old 03-27-2015, 03:04 PM   #2
Ich verstehe nur Bahnhof
iTrader: (2)
psyber_0ptix's Avatar
Join Date: Mar 2012
Location: Northern VA
Posts: 2,591
Total Cats: 202

3.2ms and .7ms spark duration are FABs recommended settings

Last edited by psyber_0ptix; 03-28-2015 at 04:47 PM.
psyber_0ptix is offline   Reply With Quote
Old 03-27-2015, 09:53 PM   #3
Supporting Vendor

iTrader: (33)
Ben's Avatar
Join Date: Jul 2006
Location: atlanta-ish
Posts: 12,662
Total Cats: 72

Cranking dwell has no affect on running dwell settings. You probably can not over dwell coils on cranking to the result of real damage, but you can under dwell them to the result of no spark.

To properly set running dwell on unknown coils, you REALLY need a scope. Anything else is a guess.
Ben is offline   Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
OTS Bilstein to motorsports ASN conversion stoves Suspension, Brakes, Drivetrain 5 04-21-2016 03:00 PM
Changing from 460cc to flow force 610cc in diypnp 90 Turbo MEGAsquirt 19 10-19-2015 03:23 PM
Back to Stock Part Out!! Turbo Parts, MS2 Enhanced 01-05, Suspension, and MOAR! StratoBlue1109 Miata parts for sale/trade 16 10-02-2015 09:39 AM
Leaky Wilwoods mx592 Suspension, Brakes, Drivetrain 1 10-01-2015 12:45 AM
01-05 Fab9 PNP COPs (used) FrankB Miata parts for sale/trade 6 09-30-2015 11:48 AM

cops, dwell, fab9, megasquirt, tuning

Thread Tools

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 -4. The time now is 07:40 PM.