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Old 10-15-2020, 08:32 PM   #29
DexnBlair
 
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What are you guys using to load your tune?
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Old 10-16-2020, 01:00 AM   #30
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Quote:
Originally Posted by i4heavychevy View Post
ok so i decided to flash back the stock tune, then reload the trifecta tune. must have been some type of error during the first upload (even though it said it was complete) so there is some gains now that I see. not sure what happened with the first upload. either way im going to run a data log and send it over to them to to make sure all is well on the tune. it does have gains. i noticed one thing that maybe you guys can help me with... this happens only some times not all the time......so when i come to a faster than normal stop it seems to not downshift fast enough. if i were to describe what happens i would say it stays in 3rd all the way down until it kinda bogs out at 500 rpm then suddenly downshifts into second or first and idels down normally after that. after the rpm "bounces off the 500 rpm marker it goes up to about 1100 and then idles out smoothly.

as for what i said about not feeling gains i retract those comments it was simply not loaded Properly. it does have noticeable gains but now has that one random shifting issue.

so to clear things up because maybe they didnt understand my question. trifecta can tune to a larger turbo?
Yes, they can. Preferably, their in-house T40 Turbo they source from a German company specifically for our car called Mach5. These turbos have a larger compressor and turbine wheel in a milled out stock housing.

The only thing I can think of as to why they wouldn't remote tune a different turbo or larger turbo, is the possibility of blowing up your engine especially on stock rods and pistons. Also, I'm no Wook Wook, but I'd imagine trying to do the initial full pulls on a stock tune or even their canned tune with a way larger turbo would be catastrophic. It would probably be a nightmare going back and forth a million times trying to get it right remotely. I'm not saying it can't be done, just sketchy doing it remotely and not in-person on their dyno.

They are not new to high hp ecotec engines. The owner Vince, has a 500hp 2.0T Camaro in the shop with a bunch of one off custom made parts and an EFR 7670 turbo.

What are your hp goals? What are you wanting to do with the car? Drag race? Auto-X? Track night? Street racing?
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Last edited by Start The Machine; 10-16-2020 at 01:12 AM.
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Old 10-16-2020, 01:09 AM   #31
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Quote:
Originally Posted by DexnBlair View Post
What are you guys using to load your tune?
Their proprietary software and obd2 to USB cable that connects to your laptop.
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Last edited by Start The Machine; 10-16-2020 at 01:21 AM.
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Old 10-16-2020, 12:08 PM   #32
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i4heavychevy, did you notice the same thing I described with it not downshifting as often and it producing acceleration via boost alone?

Maybe I need my buddy to reload his tune if things are not as I described...
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Old 10-17-2020, 10:36 AM   #33
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ok good news. I was gonna say, i looked around and there was note some where they said it may to 2 rounds of uploads for A8, i assume one for the TCU and one for the ECU.

The slow to close TPS. Its a thing with the engine. One thing I appreciate the M6 for. You jam the clutch as in a course run and the engine keeps up the RPMS under the high load and sudden decel. After I work out my current projects I should come back to it and see what if anything affects it. I 'dont' think its a blow off through the intake right now, since the Jacfab is extremely efficient at wasting the boost. Its still a mystery, to me too. All I can say is eventually as the thrill wears down, you wont be driving as aggressively and it wont be as much of a problem usually. Small consollation I know.

The engine momentum is a 'thing' and several have reported it. It's not flywheel or anything mechanical b/c it affects both A8 and M6, its in the ecu RPM/TPS ramp down logic, i am pretty certain. That the track I am taking for now.

* - Actually now that I reflect on it, someone suggested its a burn off strategy for waste fuel and air as to why the delayed sense of engine throttle down is, its an emissions strategy and its magnified because of the underlying linkage in the tables are altered from stock now, it seems we haven't found the magic bullet to smooth that out yet. yet.... its just tied to the increase in torque and there are a lot of potential links that contribute, but may not necessarily be perfectly visible in the tables. Its like trying to stop a barge now, as opposed to a fishing boat. Someone will find an effective link someday. I think it was brought up in the Randy Probst post a while ago.

So turbo upgrade. Not to sell short on 'tunes' that shops spend hours and dollars developing, so I am careful not to delve far into the tuning needed to go into the 'advanced' tables to use the increase torque of bigger turbos. Suffice it to say it needs specific reads from histograms that have special math calculations and certain table settings temporarily staged to lock things like extra fueling to read the adjustments.

In a nutshell, its an experiential re-calibration based on your setup. as in actual dyno reads. It can be done on the street, yes that it's true you don't Require a shop, but for most people its the way to go. Its a back and forth kind of involvement that STM said before. You wont blow anything up if you drive home on a bigger turbo, but wont gain anything because no growth/room for power was sent to affected the tables yet.

It aint your grandfathers Oldsmobile, taking from the old advertisement, remember them? Yeah. Its all very very tightly controlled for emissions and MPG now. All computer logic. GM makes it easy to get basic tweaks to a point, but the hard core stuff like turbos, requires more thought and skill to pull it off well.

sorry for the book, just my musing.
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Mishimoto IC Pipe Kit | ZZP Catted DP | JacFab BOL | Borla - Sport Tour | Apex Arc 8 - square | Wookster Tuning+ | XLR Throttle Tuner | ZZP Big Wheel Turbo | Snow 2.5 Boost Cooler | Flex Fuel

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Last edited by wookwook; 10-17-2020 at 11:54 AM.
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Old 10-17-2020, 02:48 PM   #34
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Anyone familiar with National Speed located in Wilmington, NC? They are slightly over 2 hours away but the reviews seem good overall.

https://nationalspeedinc.com/dyno-tune/
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Old 10-17-2020, 05:45 PM   #35
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website seems impressive. i would say go for it. you have nothing to loose over the standards suggested in past posts, and please review it here. I wished there was more reviews on vermont tuning. Your not gonna get solicitations per se on here. just look through the history on here and go for it.
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NFG M6 2T
Mishimoto IC Pipe Kit | ZZP Catted DP | JacFab BOL | Borla - Sport Tour | Apex Arc 8 - square | Wookster Tuning+ | XLR Throttle Tuner | ZZP Big Wheel Turbo | Snow 2.5 Boost Cooler | Flex Fuel

Last PB
4.8, 13.2@106
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Old 10-17-2020, 10:35 PM   #36
DexnBlair
 
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Drives: Camaro RS
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Quote:
Originally Posted by wookwook View Post
website seems impressive. i would say go for it. you have nothing to loose over the standards suggested in past posts, and please review it here. I wished there was more reviews on vermont tuning. Your not gonna get solicitations per se on here. just look through the history on here and go for it.
My biggest thing is I want to find a tuner locally, if possible, that knows these cars. So if an issue arises I can actually take the car to the shop. I cannot imagine the hassle that trying to work on it remotely will be. If I were to have to have the laptop connected to the car for it to be looked at remotely, live, that would be an issue for me. I live in the country with poor internet connection.
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Old 10-18-2020, 11:03 AM   #37
wookwook
 
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Just give them a call and gauge your comfort level. For me, my thought is if they do Camaros, you will be fine. Its very similar. If I can do my numbers below by reading The Tuning School Gen v guide and only started this last year, a pro shop will have no problem.

Granted I have have a year of additional tinkering, but stack that against a pro shop doing it for a living. You should be fine.

If you want daily street low budget a bolt on (FBO) tune will be simple and gratifying. If you want power to take to the strip/course, its a little different you will need access to pump E85, but a turbo upgrade is a good set it and forget it bolt on. It will need some dyno time. Hope that helps. Post your progress!
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NFG M6 2T
Mishimoto IC Pipe Kit | ZZP Catted DP | JacFab BOL | Borla - Sport Tour | Apex Arc 8 - square | Wookster Tuning+ | XLR Throttle Tuner | ZZP Big Wheel Turbo | Snow 2.5 Boost Cooler | Flex Fuel

Last PB
4.8, 13.2@106
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