Agp stage 2 WGA 10psi max???? - Dodge SRT Forum
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post #1 of 12 (permalink) Old 05-04-2017, 08:14 PM Thread Starter
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Agp stage 2 WGA 10psi max????

Just installed the agp stage 2 wga and I can't get more than 10psi of boost? Did I do something wrong? I found instructions but didn't really help me much. Roast if you want but I just need to know what can I do to fix this? The stock wg was getting me 15.
Help please (:
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post #2 of 12 (permalink) Old 05-04-2017, 08:18 PM
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What was it boosting before the change? Hav you been back over the install and checked everything? Is the arm binding/hitting on anything? Have you adjusted the preload screw on the wastegate? Checked for leaks?
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post #3 of 12 (permalink) Old 05-04-2017, 08:29 PM Thread Starter
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What was it boosting before the change? Hav you been back over the install and checked everything? Is the arm binding/hitting on anything? Have you adjusted the preload screw on the wastegate? Checked for leaks?

I was at about 15 psi before install. There is a screw, which way would I turn it? Towards the turbo or towards the passenger side?
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post #4 of 12 (permalink) Old 05-04-2017, 08:34 PM
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I was at about 15 psi before install. There is a screw, which way would I turn it? Towards the turbo or towards the passenger side?
Righty Tighty, Lefty Loosey. Small turns at a time, 1/4 to 1/2.
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post #5 of 12 (permalink) Old 05-04-2017, 08:36 PM Thread Starter
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I was at about 15 psi before install. There is a screw, which way would I turn it? Towards the turbo or towards the passenger side?
Righty Tighty, Lefty Loosey. Small turns at a time, 1/4 to 1/2.
Thanks I appreciate all the input you have given me to this day!
Okay so quick question, if I'm going righty tighty do I stop once I reach the end of thread? I did that and I didn't get a different outcome :/
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post #6 of 12 (permalink) Old 05-04-2017, 08:50 PM
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Thanks I appreciate all the input you have given me to this day!
Okay so quick question, if I'm going righty tighty do I stop once I reach the end of thread? I did that and I didn't get a different outcome :/
Yes, then you either have a leak in the system and/or wastegate diaphragm.
Is this WG new? Have you checked the spring and the diaphragm inside it?
You are running the hose to the stock WG solenoid?
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post #7 of 12 (permalink) Old 05-04-2017, 08:57 PM Thread Starter
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Thanks I appreciate all the input you have given me to this day!
Okay so quick question, if I'm going righty tighty do I stop once I reach the end of thread? I did that and I didn't get a different outcome :/
Yes, then you either have a leak in the system and/or wastegate diaphragm.
Is this WG new? Have you checked the spring and the diaphragm inside it?
You are running the hose to the stock WG solenoid?

Yes it's brand new. Do I tighten it while it's installed or am I supposed to unhook it and the tighten ?
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post #8 of 12 (permalink) Old 05-05-2017, 06:58 AM
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Yes it's brand new. Do I tighten it while it's installed or am I supposed to unhook it and the tighten ?
You can do it either way, it is just making the spring pressure 'stronger' so it will take more open the WG, thereby giving you more boost.
Hook the hose directly to the turbo and see what happens. If the same you have a leak somewhere. I would back off the screw when you do that.
Still check for leaks.
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post #9 of 12 (permalink) Old 05-05-2017, 04:30 PM
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This is a very scientific diagram that I took many hours to come up with, explaining the delicate intricacies.

Hopefully it explains the AGP WGA well.
titan2782 and Robdee30 like this.

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post #10 of 12 (permalink) Old 05-17-2017, 10:19 AM
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Are you sure you hooked it to the solenoid like the stock one was? Because it sounds like it's plugged directly to the turbo with a 8psi spring.

-Red 2004 Dodge Neon SRT-4
Looks stock
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post #11 of 12 (permalink) Old 06-19-2017, 10:44 AM Thread Starter
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I called modern performance and they said I'd need to tune it to get higher boost. I just took it off and went back to stock. Lol
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post #12 of 12 (permalink) Old 06-20-2017, 10:05 PM
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Shorter the rod, the more the boost. Longer = less boost. Works like clockwork on mine, but mine does not like more than 19 psi spikes, I Have it set to 19-20 psi max. Mine is also still working with the solenoids too. Just make sure all your vacuum lines are hooked up right too. it's easy to get confused, I used a diagram, but I have an HKS bov, so mine is a bit different from stock. I just played with mine till the boost was just right, by adjusting, driving, and adjusting again till I was satisfied.

Here is a link to a blog from modern performance on the subject. It's not rocket science.
http://blog.modernperformance.com/ho...-caliber-srt-4

Derrick Argabright

Last edited by DerrickA; 06-20-2017 at 10:10 PM.
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