Factory ignition dwell times & injector injection timing

Headlights to tailights and everything in between.

Moderators: Helpinators, Moderators

Post Reply
Legacy777
Site Admin
Site Admin
Posts: 27928
Joined: Tue Oct 15, 2002 11:37 am
Location: Houston, Tx
Contact:

Factory ignition dwell times & injector injection timing

Post by Legacy777 »

I know this is probably a long shot, but would anyone happen to know the factory ignition dwell times for the diamond or even hitachi coil pack?

Also, I'm looking for the injector injection timing.

I need a stock car and an oscilliscope...
Josh

surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
2020 Outback Limted XT

If you need to get a hold of me please email me rather then pm
GodSquadMandrake
First Gear
Posts: 199
Joined: Sat Mar 15, 2008 4:25 am
Location: Fairbanks, AK
Contact:

Post by GodSquadMandrake »

Oh that's a good question. The dwell time has gotta be somewhere around 2 ms but I don't know exactly.
-Doug Wilson
Legacy777
Site Admin
Site Admin
Posts: 27928
Joined: Tue Oct 15, 2002 11:37 am
Location: Houston, Tx
Contact:

Post by Legacy777 »

Got some info from Fineline Imports on settings they use for the Impreza with the same coil setup.

Code: Select all

6v  7v  8v  9v  10v  11v  12v  13v  14v  15v
10  10  8   7    4    3    3    3    3    3 ms

The injector injection timing they use is 400 deg BTDC


Also, I got the injector deadtimes for the STi yellow side feed injectors.

Code: Select all

  6v    9v   12v    14v     16v
7.66  2.69  1.37   1.06    0.75  ms
Josh

surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
2020 Outback Limted XT

If you need to get a hold of me please email me rather then pm
93forestpearl
Fifth Gear
Posts: 3043
Joined: Tue Jan 25, 2005 9:14 pm
Location: Twin Cities, MN

Post by 93forestpearl »

I need to ask them about my gray Diamond COP's before I get her going.

How far off were the deadtimes?
→Dan

piddster34 at h0tma1l d0t c0m
Legacy777
Site Admin
Site Admin
Posts: 27928
Joined: Tue Oct 15, 2002 11:37 am
Location: Houston, Tx
Contact:

Post by Legacy777 »

Not too bad at normal voltages, but off quite a bit at lower voltages.

Code: Select all

Voltage     Deadtimes (ms)
6                3.490
7                2.810
8                2.273
9                1.864
10               1.563
11               1.360
12               1.209
13               1.101
14               1.000
15               0.940
Josh

surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
2020 Outback Limted XT

If you need to get a hold of me please email me rather then pm
Post Reply