DashLogic Discount
Melting Slicks
Joined: Nov 2002
Posts: 2,602
Likes: 5
From: Al.
St. Jude Donor '06-'10-'11
Unreal thanks for the help. 
But I didn't see anything listed for MAP-BARO on the basic list. Is this something that's in the advanced section?
And what are PID's?
Pardon my ignorance, just trying to learn all this stuff and why do I need to monitor it.
Kelly
But I didn't see anything listed for MAP-BARO on the basic list. Is this something that's in the advanced section?
And what are PID's?
Pardon my ignorance, just trying to learn all this stuff and why do I need to monitor it.
Kelly
Intermediate
Joined: May 2014
Posts: 42
Likes: 1
I believe it is "Calculated Boost" on the list or something similar to that.
Thread Starter
Former Vendor
Joined: Sep 2013
Posts: 295
Likes: 1
From: Utah
Melting Slicks
Joined: Mar 2007
Posts: 2,391
Likes: 23
From: Santa Barbara CA
A couple things.....
1) I've mentioned this a bunch of times in other threads, but you NEED to replace your MAP sensor to read boost above around 3 psi. The stock LS3 and LS7 MAP sensors only read to 120 kpa.
2) I made a "calculation PID" for my boost reading. When I get home I can post the formula you need to enter.
1) I've mentioned this a bunch of times in other threads, but you NEED to replace your MAP sensor to read boost above around 3 psi. The stock LS3 and LS7 MAP sensors only read to 120 kpa.
2) I made a "calculation PID" for my boost reading. When I get home I can post the formula you need to enter.
Intermediate
Joined: May 2014
Posts: 42
Likes: 1
Thanks....
Do you still need to change the sensor with your calculation pid?
Do you still need to change the sensor with your calculation pid?
A couple things.....
1) I've mentioned this a bunch of times in other threads, but you NEED to replace your MAP sensor to read boost above around 3 psi. The stock LS3 and LS7 MAP sensors only read to 120 kpa.
2) I made a "calculation PID" for my boost reading. When I get home I can post the formula you need to enter.
1) I've mentioned this a bunch of times in other threads, but you NEED to replace your MAP sensor to read boost above around 3 psi. The stock LS3 and LS7 MAP sensors only read to 120 kpa.
2) I made a "calculation PID" for my boost reading. When I get home I can post the formula you need to enter.
Melting Slicks
Joined: Mar 2007
Posts: 2,391
Likes: 23
From: Santa Barbara CA
I think the confusion is that the Palmer guys have posted a few times mentioning that boost can be read off the stock sensor. If you have a LS9 or LSA car, this is true. It's also partially true for the LS3 -- it'll read boost, but not much.
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Intermediate
Joined: May 2014
Posts: 42
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I confirmed with the ECS guys that I do have the ZR1 map sensor installed.
Will the calculation you mentioned previously now true up my readings or do I need to do something custom for my car?
Will the calculation you mentioned previously now true up my readings or do I need to do something custom for my car?
Yes, the stock ls3 map sensor simply cannot read more than 120 kpa (3 or so psi). Buy a ZR1 map sensor, change the calibration data in your tune, and you'll be good to go.
I think the confusion is that the Palmer guys have posted a few times mentioning that boost can be read off the stock sensor. If you have a LS9 or LSA car, this is true. It's also partially true for the LS3 -- it'll read boost, but not much.
I think the confusion is that the Palmer guys have posted a few times mentioning that boost can be read off the stock sensor. If you have a LS9 or LSA car, this is true. It's also partially true for the LS3 -- it'll read boost, but not much.
Melting Slicks
Joined: Mar 2007
Posts: 2,391
Likes: 23
From: Santa Barbara CA
I'm out again on my phone, but I'll get that formula for you. Mine originally didn't read right either, but I probably wasn't using the correct PID. A calculation PID that shows vacuum and boost is the way to go.
Melting Slicks
Joined: Nov 2002
Posts: 2,602
Likes: 5
From: Al.
St. Jude Donor '06-'10-'11
I found that PID(30001) and did get it working. It shows vacuum & boost. 
When I drove to work today I got into it and it showed 5lbs of boost. I think it was only 5 due to the pulley I have on the SC.
Have emailed Hennessey and will find out if they did put in a ZR-1 MAP.
Kelly
Thread Starter
Former Vendor
Joined: Sep 2013
Posts: 295
Likes: 1
From: Utah
Yes it is our fault, we assumed that people were not running around with MAP sensors that were pegged out. We thought that all SC kits would include a provision for that.
Melting Slicks
Joined: Mar 2007
Posts: 2,391
Likes: 23
From: Santa Barbara CA
You can "tune around" the stock MAP sensor as many do, but I wouldn't call it the right way to do things. Even when tuning a MAF car, it's nice for the PCM to have accurate MAP data so the injector flow rates at correct under all driving conditions.
Could you elaborate on this some more?
Last edited by Streetk14; Jun 17, 2014 at 09:49 PM.
Melting Slicks
Joined: Mar 2007
Posts: 2,391
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From: Santa Barbara CA
Racer
Joined: Oct 2008
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From: Torrance CA
Racer
Joined: Oct 2011
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From: Jacksonville TX
Thread Starter
Former Vendor
Joined: Sep 2013
Posts: 295
Likes: 1
From: Utah
We took a huge hit to the stock on hand. We have a shipment showing up any day now, until then, I don't dare leave the price where it was until I can be sure I can fill all the orders.
