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Old 10-23-2012, 12:22 PM   #57
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I would recommend going up on the injector size. No need in maxing the duty cycle out.

Chris
You are quite right. And I will but I have no one here that can tune it.

First thing is first though, I gotta get my pressure to stay up. It drops to 48 psi at WOT and at only 7 pounds of boost.
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Old 10-23-2012, 12:30 PM   #58
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Can you read fuel pressure with a scanner on our cars? would save me some money i already have HP tuners and could just use the scanner.
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Old 10-23-2012, 12:40 PM   #59
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Originally Posted by PQ View Post
You are quite right. And I will but I have no one here that can tune it.

First thing is first though, I gotta get my pressure to stay up. It drops to 48 psi at WOT and at only 7 pounds of boost.

What type of FI do you have? What fuel pump are you using.
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Old 10-23-2012, 12:46 PM   #60
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Originally Posted by LyonsViper27 View Post
Can you read fuel pressure with a scanner on our cars? would save me some money i already have HP tuners and could just use the scanner.

Yes, Under your PID's there is:

Desired Fuel Pressure
Injector Delta Pressure
Requested Fuel Pressure
Fuel Pump Commanded DC.

Scan all 4 of these and this will give you the info needed for you to tell if your FP is dropping.


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Old 10-23-2012, 01:33 PM   #61
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I have a ZR1 MAP sensor coming and plan to install once I get the ZL1 pump and perform that install. Can I drive safely to the tuner with the ZR1 MAP and have him perform the tune or do I need to install the sensor at the tuners to avoid driving it without the tables in the ECM corrected?
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Old 10-23-2012, 02:13 PM   #62
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What type of FI do you have? What fuel pump are you using.
Mine are the stock TVS2300 Magnuson injectors.

Stock fuel pump with a KBB BAP.

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Originally Posted by NWSleeper View Post
I have a ZR1 MAP sensor coming and plan to install once I get the ZL1 pump and perform that install. Can I drive safely to the tuner with the ZR1 MAP and have him perform the tune or do I need to install the sensor at the tuners to avoid driving it without the tables in the ECM corrected?
I'd just drive it there with the existing sensor. You can swap it out in 5 minutes when you get there.
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Old 10-23-2012, 02:33 PM   #63
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Mine are the stock TVS2300 Magnuson injectors.

Stock fuel pump with a KBB BAP.

I'd just drive it there with the existing sensor. You can swap it out in 5 minutes when you get there.

I would get rid of the bap and switch to the ZL1 fuel pump and upgrade the injectors to 80's.

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Old 10-23-2012, 02:39 PM   #64
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I would get rid of the bap and switch to the ZL1 fuel pump and upgrade the injectors to 80's.

Chris
ZL1 pump is coming.

Injectors, gonna be a bit. Mainly because I have to find someone to tune them when I swap them.
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Old 10-23-2012, 03:11 PM   #65
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Gonna run a ZL1 Pump with my BAP on my setup. I'm loosing fuel pressure as well.
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Old 10-23-2012, 03:18 PM   #66
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I'm another that is dropping to 48psi. I found a good deal on the fastlane pump and put that in instead of the zl1. My fuel pressure is still dropping to 48Psi. This is with just the supercharger and bolt-ons
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Old 10-23-2012, 03:20 PM   #67
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I'm another that is dropping to 48psi. I found a good deal on the fastlane pump and put that in instead of the zl1. My fuel pressure is still dropping to 48Psi. This is with just the supercharger and bolt-ons
Really?

Reading from the rail or from the OBD?
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Old 10-23-2012, 03:23 PM   #68
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Really?

Reading from the rail or from the OBD?
Reading from the OBD. I do have the ZR1 map sensor. I was confused also.
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Old 10-23-2012, 03:30 PM   #69
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Quote:
Originally Posted by nyny69 View Post
I'm another that is dropping to 48psi. I found a good deal on the fastlane pump and put that in instead of the zl1. My fuel pressure is still dropping to 48Psi. This is with just the supercharger and bolt-ons

What size injectors you running.

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Old 10-23-2012, 03:33 PM   #70
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What size injectors you running.

Chris
The one's that came with the kit. I think the 63lb. I have no internal mods.
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