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09-14-2015, 04:28 PM | #51 |
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11-17-2015, 10:09 AM | #52 |
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I know I'm not your favorite guy, but I want to provide my input.
I highly recommend deleting egr with tgvs to help put combustion stability in the hands of your tuner. With that done, obviously delete associated codes and egr timing adder. From there, you can utilize the avcs to induce an internal egr effect without the high risk of carbon buildup. I'm using more intake cam advance than you are under cruise; up to 20 degrees in some tunes. No issues with hesitations and great fuel economy. Injection timing and exhaust cam position need to be compared as well during cruise. In the frs, I've seen people advance the fuel so far and retard the exhaust so far that they are shooting fuel into the exhaust. |
11-17-2015, 06:05 PM | #53 |
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Does anyone have a pre and post tune and dyno comparison of TGV delete AND EGR block?
Please no guesstimates. |
11-17-2015, 06:43 PM | #54 |
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Are you asking for separate graphs TGV delete dyno tune and EGR block off dyno tune? Because I have dyno maps for stage 2 without TGV and EGR block off and dyno map stage 2 tune with EGR and TGV deletes added.
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11-17-2015, 06:46 PM | #55 | |
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Quote:
Just a before and after of (TGV + EGR) will do. Thank you. Last edited by fredrik94087; 11-17-2015 at 11:01 PM. |
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11-18-2015, 02:02 PM | #56 | |
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I noticed this had the biggest influence on stumbles. So if I'm changing injector timing and you're advancing intake cam more, we may be doing something similar. |
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11-19-2015, 12:34 PM | #57 |
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How did this work out when just doing an EGR delete? Also, I noticed there were 4 EGR tables (TGV Closed/Open, Group 1/Group 2). Did all 4 need to be flattened in order to compensate?...SC
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11-19-2015, 01:10 PM | #58 |
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11-19-2015, 07:33 PM | #59 |
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11-19-2015, 11:24 PM | #60 | |
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Quote:
EGR slows down the burn TGV speeds up the burn Remove the EGR and you MAY want to pull some timing in the cruise areas. I haven't personally tuned this, so your mileage may vary. |
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11-21-2015, 09:29 AM | #61 |
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TGV and EGR delete addition
I posted my 2015 WRX stock baseline vs stage 2 cobb protune in the 2015 WRX dyno thread with supporting modifications: http://forums.nasioc.com/forums/show...&postcount=286
This was without the addition of the EGR and TGV deletes. With the addition of the TGV, EGR deletes, and protune I picked up an additional 12 whp and 28 ft lbs of torque. The power delivery seems much smoother to me and I definitely feel a little more kick 4000 to 5000 RPM. |
11-21-2015, 02:57 PM | #62 |
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Very helpful. Thank you sti nova
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12-08-2015, 02:10 AM | #63 | |
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For example, on Ignition Primary, there were Primary Ignition TGV closed/open, Main/Post-Start Alternate tables. And also on Coolant Temp Compensation, there were Coolant Temp TGV closed/open/Activation tables. Last edited by sku1111; 12-08-2015 at 02:15 AM. Reason: typo |
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12-08-2015, 04:32 AM | #64 |
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I have a protuned stage 1 w/TGV deletes from a reputable dealer that I can pull the tables from if you're interested in comparing to what you've come up with. I've looked over some of those you have posted already. The changes to injector timing are just about identical. The AVCS tables are quite different, especially in low load.
Oh, and hai arghx7... didn't know you were into subbies |
12-08-2015, 09:36 AM | #65 | |
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Quote:
All the TGV open tables have to be copied the TGV closed tables... The ones he mentions are ones that he edited from the Cobb OTS stage 2 tune. |
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12-08-2015, 09:51 AM | #66 | |
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I have the same setup too plus Grimmspeed Stealthbox CAI. |
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12-08-2015, 10:15 AM | #67 |
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Yep, copy all the tables. Some are the same to begin with, but better safe than sorry!
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12-08-2015, 11:24 AM | #68 |
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12-09-2015, 06:20 PM | #69 |
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I installed P&L upper and lower TGV deletes today. It took me about 2 hours start to finish even with a PITA mitshimoto TMIC.
I replaced my TiC TGV deletes simply because I wanted all black. However I was surprised to find that the P&L deletes have a wider opening, which mean more flow. Bonus right. This is not a knock on TiC. Theres worked great for me for 10k miles. My vanity was the only reason I swapped them out. https://goo.gl/photos/gVb9ksREtfnKp1M57 https://goo.gl/photos/CB9mEe9Q2ZFRiGdU8 https://goo.gl/photos/maeJ4Ag4eyHYYnoQ6 Keep these photos in mind when you start considering cheaper or eBay TGVs. Thier opening may be even smaller... I'll try to get a some logs tomorrow. |
12-09-2015, 07:03 PM | #70 |
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What's up with the lower deletes? I only see P&L making them and don't see much info out there on them.
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12-09-2015, 08:41 PM | #71 |
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Well that's just it, there isn't really much before and after data on them. P&L said thier tuner said that they're worth some whp on the dyno with no tune and probably worth a few more with protune. Unfortunately I don't have the time to take the scientific approach to really determine what they're worth... I gotta think that anything that anything that flows more air will have a positive effect after a tune. I'll run some logs and let you hove they impact the the car with zero adjustments to the tune
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12-09-2015, 11:35 PM | #72 | |
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Quote:
For what it's worth, the ej207 v7 came factory with TGV deletes, though the lower housing still had the bits in it, making it a "partial delete" like we see when people do the upper housing on the fa20. If the partial delete was good enough for Subaru with the ej207, I'd expect only slight improvements on the FA. |
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12-10-2015, 12:15 PM | #73 | ||
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Quote:
Quote:
http://forums.nasioc.com/forums/show...0&postcount=46 |
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12-10-2015, 01:26 PM | #74 |
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My upper and lower deletes are both from P&L and are port matched...
If I think about it when I get back from vacation I'll snap a few pics. Last edited by scotte30m3; 12-10-2015 at 02:25 PM. |
12-11-2015, 12:24 AM | #75 |
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HI Anjuna,
Can you post the stock tables needed for egr delete and from what ecuid? Im having it supported with the software we use (subaruedit) Thanks! Mark |
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