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Dodge Competition and Performance General Dodge Competition and Performance Discussion |
08-31-2014, 08:45 AM
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#1
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Name: pick017
Title: ohio sled puller
Status: Not Here
Join Date: Mar 2009
Location: ohio
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Posts: 457
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Question on timing my second engine of the year?
Hi I've got a few questions for you guys. First off this is what I have, 12v with mahle 286110 pistons flycut .150. The injectors are 155° ih bodies 5x20 single large feed bar set at 300. I have NE injection 13mm pump with .093 lines. The truck is a dedicated 2.6 truck. Soo is there a formula to figure out how much timing I can run before it melts down? I'm at 34° now and it doesn't seem to have the power it should. Any help would be greatly appreciated.
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08-31-2014, 10:01 AM
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#2
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Name: Macktruckdriver
Title: Too Much Time
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Join Date: Feb 2008
Location: Allendale, MI
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Posts: 4,358
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Start backing your timing down and see if you get more power. More doesn't = more power.
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08-31-2014, 10:10 AM
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#3
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Name: pick017
Title: ohio sled puller
Status: Not Here
Join Date: Mar 2009
Location: ohio
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That's kinda what I was thinking too. I heard that I shouldn't go over 28° with these injectors, but then I was also told I should run at least 36°.
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08-31-2014, 10:29 AM
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#4
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Name: turboram
Title: spinny shiny things
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Join Date: Aug 2012
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Too much timing will make it pull down on end of track. Any vids to look at?
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70 dodge powerwagon 3" lps puller "Frank"
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08-31-2014, 10:43 AM
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#5
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Name: pick017
Title: ohio sled puller
Status: Not Here
Join Date: Mar 2009
Location: ohio
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Hi nick it zach (ripcord) can't get my video s to up load
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08-31-2014, 10:48 AM
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#6
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Name: turboram
Title: spinny shiny things
Status: Not Here
Join Date: Aug 2012
Location: oh
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Posts: 646
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I thought that was you . Back off to 30° and try it
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70 dodge powerwagon 3" lps puller "Frank"
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08-31-2014, 10:49 AM
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#7
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Name: turboram
Title: spinny shiny things
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155° don't need a ton of timing
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70 dodge powerwagon 3" lps puller "Frank"
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08-31-2014, 11:20 AM
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#8
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Name: ComnRailPwr
Title: Too Much Time
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Join Date: Jun 2009
Location: Stoutsville , OH
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Im no help but I too would like to know the formula for figuring out when I start to spray outside the bowl.
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08-31-2014, 11:29 AM
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#9
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Name: turboram
Title: spinny shiny things
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^^^^^that all depends on spray angle , piston bowl, stroke ,rod length , gasket thickness, and other things.
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70 dodge powerwagon 3" lps puller "Frank"
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08-31-2014, 11:44 AM
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#10
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Name: 97rada
Title: Too Much Time
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Join Date: Feb 2008
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I know from a few people that are very knowledgable, that making power doesn't always have to mean spraying in the bowl. Can actually make more power outside it.
Sent from my iPhone using Tapatalk
__________________
Austin
tow truck- 14-3500 with tuning
toy truck -94 rclb auto- 5.2x with a lot left. Shooting for 4s
Any intelligent fool can make things bigger and more complex...it takes a touch of genius- and alot of courage to move in the opposite direction.
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08-31-2014, 11:59 AM
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#11
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Name: DISTURBED
Title: YEA WE RIDE THE SHORT BUS
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Join Date: Nov 2007
Location: Winchester, Va
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Rule of thumb is on a stock engine 28* is spraying on top of the piston. I've run a lot more then that and made good power on 286110 pistons. Most like it up around 40*
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Thanks, Jeremy
01 CTD Retired sled puller, dedicated "Twin Turbo" tow rig
96 CTD "TOO" Disturbed 3.0 - Built by Disturbed Diesel Performance
96 CTD "The Sickness" 2.6/2.8- Built by Disturbed Diesel Performance
Last edited by DISTURBED; 08-31-2014 at 12:01 PM.
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08-31-2014, 08:50 PM
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#12
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Name: madmikeismad
Title: So mad
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Join Date: Dec 2009
Location: Newalla, OK
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Quote:
Originally Posted by 97rada
I know from a few people that are very knowledgable, that making power doesn't always have to mean spraying in the bowl. Can actually make more power outside it.
Sent from my iPhone using Tapatalk
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Not necessarily making more, just because you're outside the bowl. Spraying outside is just accepted so you can run more timing/rpm. Right? Spraying inside is more efficient, but will limit you.
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Mike Hill
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08-31-2014, 09:25 PM
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#13
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Name: 97rada
Title: Too Much Time
Status: Not Here
Join Date: Feb 2008
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Posts: 5,410
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I was not educated on the specifics as to why. I was just told you can make more outside.
Sent from my iPhone using Tapatalk
__________________
Austin
tow truck- 14-3500 with tuning
toy truck -94 rclb auto- 5.2x with a lot left. Shooting for 4s
Any intelligent fool can make things bigger and more complex...it takes a touch of genius- and alot of courage to move in the opposite direction.
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09-01-2014, 03:08 PM
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#14
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Name: pick017
Title: ohio sled puller
Status: Not Here
Join Date: Mar 2009
Location: ohio
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Posts: 457
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Ok well I tried 28° and lost 600rpms. It didn't seem to run as well as it did at 34°. So has anyone ran higher than that with any luck? I'm just don't want to burn another one up.
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