Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums - Camaro5.com
 
Phastek Performance
Go Back   Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums - Camaro5.com > Engine | Drivetrain | Powertrain Technical Discussions > Forced Induction - V8


Reply
 
Thread Tools
Old 09-21-2017, 11:57 AM   #85
jeff657756
 
Drives: 2014 SS 1LE
Join Date: Apr 2014
Location: United States
Posts: 458
Quote:
Originally Posted by DTR FTW View Post
Can you adjust Gain on the GFB2 even if youre only on wastegate? I.e, im only on 6lbs, but i feel like im not seeing peak until what seems to be relatively late in the powerband(close to 4k).

54/57 .82's, stock ls3
4k is pretty good. Mine come on around that time (57/57s). If you need faster then you may be able to. Set peak boost. Leave duty cycle at 10 and that should put you close to the 6lbs. Once its set turn your gain up incrementally. Dont go too high or you will overshoot. I dont think you will see too much of a difference though honestly.
__________________
jeff657756 is offline   Reply With Quote
Old 09-21-2017, 03:30 PM   #86
AGP Turbo


 
Drives: All things Turbocharged
Join Date: Dec 2010
Location: AZ
Posts: 971
.63 turbine housings might have been a better choice for you. They will support 800whp and spool up noticeably quicker.

As for boost control a little stronger spring in the wastegates would help too. The softer springs tend to let a little exhaust leak out before opening pressure.

And as for EBC adjustment, feel free to run the gain up to a pretty high number. We often set them around 80-90% without any spike problem.

Generally duty cycle below 20% is doing nothing. You usually have to hit 25% before it even starts to make any difference but then gets very sensitive from there up. IE a change from 20 to 25% does almost nothing but a change from 30 to 35% might be 3psi.
__________________
http://www.agpturbo.com

We make more hp on 100% stock LS3 than a TVS2300 can make on a $25,000 LSX
AGP Turbo is online now   Reply With Quote
Old 09-21-2017, 10:58 PM   #87
DTR FTW
 
DTR FTW's Avatar
 
Drives: 2014 1LE
Join Date: Apr 2017
Location: East Coast
Posts: 13
I wont see 800 on 93 with my fuel system lol. I cant even exceed the 6lbs on 93. Tuner was seeing knock after only 7*
DTR FTW is offline   Reply With Quote
Old 09-21-2017, 11:00 PM   #88
DTR FTW
 
DTR FTW's Avatar
 
Drives: 2014 1LE
Join Date: Apr 2017
Location: East Coast
Posts: 13
Hence why i wanted to try and make the most of the 6lbs I have lol
DTR FTW is offline   Reply With Quote
Old 09-21-2017, 11:25 PM   #89
AGP Turbo


 
Drives: All things Turbocharged
Join Date: Dec 2010
Location: AZ
Posts: 971
How low did you get the timing? I'd run 8-9psi and drop the timing back to 7^ during peak torque then bring a few degrees back in toward redline.
__________________
http://www.agpturbo.com

We make more hp on 100% stock LS3 than a TVS2300 can make on a $25,000 LSX
AGP Turbo is online now   Reply With Quote
Old 09-22-2017, 07:07 AM   #90
DTR FTW
 
DTR FTW's Avatar
 
Drives: 2014 1LE
Join Date: Apr 2017
Location: East Coast
Posts: 13
Im not sure how low. I was just told it wouldnt take more than 6lbs and 7 degrees. Ill look into it
DTR FTW is offline   Reply With Quote
Old 09-22-2017, 07:08 AM   #91
DTR FTW
 
DTR FTW's Avatar
 
Drives: 2014 1LE
Join Date: Apr 2017
Location: East Coast
Posts: 13
Also tuner couldnt get into the MSD bap for some reason. Been waiting for 2 weeks for a response from MSD as to why
DTR FTW is offline   Reply With Quote
Old 09-22-2017, 08:12 AM   #92
Redlineviper

 
Redlineviper's Avatar
 
Drives: 2013 ZL1
Join Date: Jan 2015
Location: Orlando
Posts: 937
Very strange you are getting knock with 6lbs and 7 degrees of timing. I am running double that timing on 3 times that boost. Granted I have a 9.1 compression engine on e85 and meth but still.
__________________
2013 A6 ZL1
Redlineviper is offline   Reply With Quote
Old 09-22-2017, 09:13 AM   #93
Moreair1

 
Moreair1's Avatar
 
Drives: 2011 ss convertible
Join Date: Jul 2015
Location: Colorado
Posts: 976
I'm running 9 lbs on 91 and don t get any kr, have you tried looking to see if the msd bap needs a update? Or maybe they need to download a updated program on there computer
__________________
Cai intake and a few other mods😎
Moreair1 is offline   Reply With Quote
Old 09-22-2017, 03:04 PM   #94
stevieturbo
 
Drives: Slow
Join Date: Nov 2010
Location: Norn Iron
Posts: 707
Quote:
Originally Posted by Redlineviper View Post
Very strange you are getting knock with 6lbs and 7 degrees of timing. I am running double that timing on 3 times that boost. Granted I have a 9.1 compression engine on e85 and meth but still.
I'd always question a tuner who says they "see" knock...

Knock being a noise....not a visual.

Proper knock detection is important when tuning...not guesswork.
__________________
stevieturbo is offline   Reply With Quote
Old 09-22-2017, 03:07 PM   #95
AGP Turbo


 
Drives: All things Turbocharged
Join Date: Dec 2010
Location: AZ
Posts: 971
Without the MSD working then it's probably leaning out anything over 6psi. All these problems will go away when you get the MSD working and can tune more. You should end up around 8-9psi on 93oct.
__________________
http://www.agpturbo.com

We make more hp on 100% stock LS3 than a TVS2300 can make on a $25,000 LSX
AGP Turbo is online now   Reply With Quote
Old 09-22-2017, 04:03 PM   #96
Unavowed
 
Unavowed's Avatar
 
Drives: Twin turbo G8 GXP
Join Date: Dec 2012
Location: MD
Posts: 342
Quote:
Originally Posted by DTR FTW View Post
I wont see 800 on 93 with my fuel system lol. I cant even exceed the 6lbs on 93. Tuner was seeing knock after only 7*
Sounds like you need a pump, injectors and flex fuel.

Quote:
Originally Posted by Redlineviper View Post
Granted I have a 9.1 compression engine on e85 and meth but still.
I'd say that's a night and day difference.

Quote:
Originally Posted by stevieturbo View Post
I'd always question a tuner who says they "see" knock...
Knock being a noise....not a visual.
Proper knock detection is important when tuning...not guesswork.
"See" as in see on the logs, I assume.
__________________
Unavowed is offline   Reply With Quote
Old 09-22-2017, 06:41 PM   #97
DTR FTW
 
DTR FTW's Avatar
 
Drives: 2014 1LE
Join Date: Apr 2017
Location: East Coast
Posts: 13
Quote:
Originally Posted by Unavowed View Post
Sounds like you need a pump, injectors and flex fuel.



I'd say that's a night and day difference.



"See" as in see on the logs, I assume.
Have injectors, too broke for pump since i floated my valves a week after build lol, and goal didnt include or require e85.

But yeah, reading knock, not audible as far as im aware. Ive been curious about the posibility of false knock, but thats not something tuners like to hear suggested from nobodies lol
DTR FTW is offline   Reply With Quote
Old 09-23-2017, 06:18 AM   #98
stevieturbo
 
Drives: Slow
Join Date: Nov 2010
Location: Norn Iron
Posts: 707
Knock is always audible, certainly when pump fuel is involved....that's why proper knock detection is important. Never blindly rely ( or believe ) on sensors unless you have verified they are actually proven to be working and calibrated correctly for your setup.
__________________
stevieturbo is offline   Reply With Quote
 
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 01:55 PM.


Powered by vBulletin® Version 3.8.9 Beta 4
Copyright ©2000 - 2017, vBulletin Solutions, Inc.