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3.0L 1gen motor guys what ignition timing you run? #1067545 12/26/13 03:49 PM
Joined: Apr 2008
Posts: 441
TainterRacing Offline OP
Mudrunner
I am wondering what I might do to get a bit more power is there a way to make it run more under load??

Thanks so much I am running base of 10BTDC now.


1997 Montero LS with a motor swap a 1990 V6 12valve ported heads full 2.5in Ex I run stock tire size for Daily use, off road have 33x12.5 working on going trubo.
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Re: 3.0L 1gen motor guys what ignition timing you run? [Re: TainterRacing] #1067546 12/26/13 08:24 PM
Joined: Jan 2001
Posts: 13,649
fasteddy Offline
Web Wheeler
*****
You are measuring with the timing connector grounded?

10 may be a tad too much base timing. Factory spec is 5*btdc +/-2*, so I'd go 7-8*, do a quarter mile pull, or close to that distance, advance 1*, and do another pull over the same distance, observing trap speed. Higher trap speed means more power, and is a more reliable measurement than elapsed time.


Not responsible for advice not taken...
Re: 3.0L 1gen motor guys what ignition timing you run? [Re: fasteddy] #1067547 12/27/13 12:29 AM
Joined: Apr 2008
Posts: 441
TainterRacing Offline OP
Mudrunner
Yes its with the timing connector grounded. I have run as much as 15 BTDC base. What I do is wind out 1st and 2nd gear and go by what mph it shifts at. 38mph 1st and then 76-77mph for 2nd.


1997 Montero LS with a motor swap a 1990 V6 12valve ported heads full 2.5in Ex I run stock tire size for Daily use, off road have 33x12.5 working on going trubo.
Re: 3.0L 1gen motor guys what ignition timing you run? [Re: TainterRacing] #1067548 12/27/13 01:01 AM
Joined: Jan 2001
Posts: 13,649
fasteddy Offline
Web Wheeler
*****
While the tranny is somewhat torque sensitive, it's not a reliable indicator of power. Use my trap speed test for horsepower measurement. Run any measured distance, modify timing, and repeat over the same distance. Highest trap speed is highest hp. Don't worry about elapsed time, too many variables. I've been using trap speed as a poor man's dyno since the 60's with good results.


Not responsible for advice not taken...







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