ECMlink GVR4 SD Tuning advice

[LLBeans]

I actually ordered a 1g kit from shawn before the shootout. I don't have a need for the 1g bov gasket if you want it.

Woah, foreal?! That would help me towards a clean install when I have all the parts I’m looking for! DM me?

It's 2024. There are better ways than a crushed 1g bov.

I agree. It’s why I upgraded to a Turbosmart Plumback. My sole reason for a 1g BOV would be that used they are under 100 bucks. To replace the Plumback it will be 170 ish. To upgrade to what I would choose today. It will be closer to $300 not counting the fab time and materials.

@Stapl3 I just picked up that sheet of rubber from ace. I’m going to put the old forged BOV back on and see if I can build boost with it.

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[pauleyman]

unclog the small hole(s) on the bottom. They serve a purpose.

 

[LLBeans]

unclog the small hole(s) on the bottom. They serve a purpose.

I did, spent a while cleaning it out. I didn’t like the idea of anything getting sucked up into the engine. Is the purpose for like a 2 pronged wrench to loosen/tighten up?

I made a gasket but noticed as I’m tightening I’m still having an issue with uneven clamping pressure and the gasket being forced out. I found some high tack spray sealant on my shelf from when I resealed the thermostat housing. I’m letting it set to see if it keeps the gasket in place before I tighten it down. We will see.

This is why I want to go with a v-band flanged unit when the budget allows.

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[pauleyman]

Flatten your flanges and it should seal better. No the holes are not for a tool. The holes are for pressure on the top part of the diaphragm. Google "dodge mod" and there have been other platforms that did some interesting stuff that we can do also.

 

[CrackedDSM]

Flatten your flanges and it should seal better. No the holes are not for a tool. The holes are for pressure on the top part of the diaphragm. Google "dodge mod" and there have been other platforms that did some interesting stuff that we can do also.

That's not a 1G BOV, Paul. That's a Forge Recirculating BOV. Those "ports" are just for adjusting/swiveling the recirc output.

 

[LLBeans]

I prefer to have no additional substances to help seal. So I cut another gasket. This time leaving a little extra meat on the inner portion of the gasket. The hope is that the seal will anchor a bit better between the diverter and the IC mating surface.

I’ve been pressuring the system and spraying everything with soap. I got the BOV to seal and, Here is the fun part…Still have a massive boost leak somewhere. So I take the oil cap off and stick my ear in there and can hear hissing. Could it be that a valve is not fully closed due to where the cams are sitting in their rotation holding a valve partially open?

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[jed344]

I see you are fixing the leaks. The log still looks like injector global settings are close though. I have before had massive leaks created during a pass on intake manifold and still stayed on target as boost dropped off some with SD. Your battery voltage though looks very low during the pull. Think i saw 13-12.9V ? Fix the leaks and i would look into why the voltage is so low. The rest looks like its in the right direction.

 

[LLBeans]

So I took another log last night. 150 seconds in is the full throttle pull. Boost is still dropping off. What's showing in ECMlink is showing on my mechanical gauge. Hopefully I can pick up a fogger in the next couple weeks. I'm going to plug the exhaust up as well, really try see where things are at. It isn't quality so there is bound to be leaks there as well. The "while I'm in there" has been real y'all!

I did pick up a Harbor Freight Compression tester so we will see what that results.

@jed344 I kept an eye I didn't see it dip below 13v during this pull. Would dipping into the 12s indicate charging issues? Alternator going out, dying battery, poor ground, something along those lines to give my self a starting point for testing?

 

[LLBeans]

Progress report/minor update. 231/1k runs better than it ever has but it’s not without issues.

I've got everything on hold right now while I'm focusing on work and replenishing my fun bucks. I can’t thank @jed344 enough for his advice and help. I'm finding that I'm having more interest in tuning the more I mess with it.

My To Do List right now before I can move further with tuning goes…

1. Rebuild Throttle body - struggling to get the airRev dialed. I suspect leaks here.
2. Mess with the clutch system, slave bleeder is leaking, replace shift cables.
3. Sort fan wiring some more. They’re on constantly. I suspect this is why my voltage is low during WOT.
4. Switch to 1g BOV. The chirp of the Forge is too much for me.

For now I’ll be switching over to the build thread I started a while back. I will come back here when I have everything sorted and am reading to start making adjustments to the tune again.