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Valve Timing Questions

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Old Sep 2, 2012 | 12:20 PM
  #131  
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Originally Posted by HeyYou
If your cam is installed straight up, and doesn't have any 'built in' advance, I do believe you want sync at zero......

Rich said my cam is advanced 4°. So what would I set it at then?
 
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Old Sep 2, 2012 | 12:24 PM
  #132  
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Zero is were it needs to be.
 
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Old Sep 2, 2012 | 12:39 PM
  #133  
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Even with it being advanced? Doesn't that mean my intake valves will be opening sooner than stock and I should have my injectors spray sooner than stock also?
 
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Old Sep 2, 2012 | 12:47 PM
  #134  
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That's why I suggest picking up a scanner that can read sync.... and see what works best for you..... If the valve is already partially open, I don't see that as being a real problem, all it means is air will already be moving when gas is added...... stock injectors are 'pencil beam' squirters..... so... I don't think it will matter overmuch.

Save some pennies, and then pick up a good scanner.... or, if you have a laptop computer, download free software, and pick up a cable (fifty bucks or so), and have a REALLY good scanner.
 
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Old Sep 2, 2012 | 12:50 PM
  #135  
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Originally Posted by HeyYou
That's why I suggest picking up a scanner that can read sync.... and see what works best for you..... If the valve is already partially open, I don't see that as being a real problem, all it means is air will already be moving when gas is added...... stock injectors are 'pencil beam' squirters..... so... I don't think it will matter overmuch.

Save some pennies, and then pick up a good scanner.... or, if you have a laptop computer, download free software, and pick up a cable (fifty bucks or so), and have a REALLY good scanner.
What software....?
 
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Old Sep 2, 2012 | 12:56 PM
  #136  
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PCMScan, and a host of others..... I think there is a site out on the web, that has links, and reviews, on a selection of them.

There are some purchasable version that will also let you WRITE to the PCM..... I.E. do your own tuning.
 
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Old Sep 2, 2012 | 01:03 PM
  #137  
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Originally Posted by HeyYou
PCMScan, and a host of others..... I think there is a site out on the web, that has links, and reviews, on a selection of them.

There are some purchasable version that will also let you WRITE to the PCM..... I.E. do your own tuning.
I don't think there is any software we can get that will allow us to tune these things short of the SCT PRP package.
 
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Old Sep 2, 2012 | 01:13 PM
  #138  
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Originally Posted by Adobedude
I don't think there is any software we can get that will allow us to tune these things short of the SCT PRP package.
That may be the one I am thinking of.... It's like 500 bucks... and allows you to tune ONE vehicle..... Sound familiar?

There was a whole community based on custom tuning the OBDI GM systems.... required some serious hoop jumping, but, once set up, was amazingly easy to do.... (steep learning curve though...) Could obtain some amazing results.....
 
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Old Sep 2, 2012 | 01:14 PM
  #139  
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Originally Posted by Adobedude
I don't think there is any software we can get that will allow us to tune these things short of the SCT PRP package.

I believe the dealership uses the DRB 3 scan scan tool. I just read on bionic dodge that with a higher lift, especially one with advanced timing already ground into it that setting it +4 to +12 helps. Im ordering my SCT Stage 1 Custom Tuning tuner on the 14th. From there I'm sure I can fine tune things.
 
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Old Sep 2, 2012 | 01:17 PM
  #140  
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Originally Posted by HeyYou
PCMScan, and a host of others..... I think there is a site out on the web, that has links, and reviews, on a selection of them.

There are some purchasable version that will also let you WRITE to the PCM..... I.E. do your own tuning.


So I will have to find a cable that goes from my laptop to my obd2 plug? Then find the software to read it?
 
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