safe timing to start from

Questions that get asked a lot.

Moderator: Matt

Ratsun815
Posts: 12
Joined: Thu Sep 22, 2016 3:37 pm

safe timing to start from

Postby Ratsun815 » Mon Apr 17, 2017 4:08 am

good afternoon gear heads,

im trying to find safe timing to start from on
my setup so i know what normal engine noise is
when i get my knock ear/det can set up. can anyone
point me to some safe numbers? i looked at the
stock ecu ign map and they ssem to run VERY
conservative timing.

here's my set up
sr20det black top
555cc
20psi max boost level
fuel is 93 octane pump gas

thanks for any input in advance

Matt
Site Admin
Posts: 7662
Joined: Sun Jan 29, 2006 1:45 am
Location: Adelaide, Australia
Contact:

Re: safe timing to start from

Postby Matt » Mon Apr 17, 2017 2:44 pm

Factory timing is setup for factory boost levels. Once you increase your boost levels, then the timing may require adjustment in the areas where boost has increased beyond factory.

The method usually used for setting timing is peak torque method. So you adjust the timing area based on maximum torque, as beyond this you will start entering detonation areas. However I would suggest some further reading on tuning in general since the basis of this question requires some understanding of the fundamentals of tuning before diving in

Some places like EFI Univeristy are a good place to start, and they have insturction videos too

Ratsun815
Posts: 12
Joined: Thu Sep 22, 2016 3:37 pm

Re: safe timing to start from

Postby Ratsun815 » Mon Apr 17, 2017 10:34 pm

ok sounds good man I would really rather learn
and do a street tune then pay someone to do it for
me. I figured take a look at a stock ecu timing table
and retard about a degree for every pound of boost
i put into it in the high load areas. but some of the
high load areas were at three degrees. you really cant
go much past that right? Just checked out that efi
university. great idea gonna get rollin on that pronto

skyboy318
Posts: 17
Joined: Thu Apr 27, 2017 11:47 am

Re: safe timing to start from

Postby skyboy318 » Thu Jun 08, 2017 1:37 pm

is there a link or a place to start from to learn how. like a nistune ignition timing map how to for beginners. i havnt found a right up saying how to begin tuning timing yet. i know the rule of thumb is to retard timing 1 degree for each psi of boost but thats a rough start.

Matt
Site Admin
Posts: 7662
Joined: Sun Jan 29, 2006 1:45 am
Location: Adelaide, Australia
Contact:

Re: safe timing to start from

Postby Matt » Thu Jun 08, 2017 11:20 pm

Not Nissan specific with regards to timing map. We normally monitor for peak torque which is a standard tuning method. Google EFI University as they have a lot of tuning info with videos to help you understand the whole process - not just changing numbers in maps

skyboy318
Posts: 17
Joined: Thu Apr 27, 2017 11:47 am

Re: safe timing to start from

Postby skyboy318 » Sun Jun 11, 2017 11:19 am

is there a way you could post a pic of one of your timing maps from a basically stock engine not one thats running e85. just so i can get an idea of what a known good one from a nissan looks like

Matt
Site Admin
Posts: 7662
Joined: Sun Jan 29, 2006 1:45 am
Location: Adelaide, Australia
Contact:

Re: safe timing to start from

Postby Matt » Sun Jun 11, 2017 9:53 pm

email me and I'll send my S14 one through for you to compare against standard one
info[at]nistune.com


Return to “FAQs”

Who is online

Users browsing this forum: No registered users and 1 guest