Not much POWER gain after tune???
Jun 18, 2011, 06:05 PM
#61
Evolved Member
Thread Starter
yep, we tune like this around the world daily, check out the tuning section of our site for the details http://www.mellonracing.com/index.ph...dex&cPath=1_28
Jun 22, 2011, 08:16 AM
#62
Evolved Member
Thread Starter
we usually see ~400awhp on 93 octane with a 30R setup, 350 does seem a little low but it depends on your dyno. If you can send me a 3rd gear log from 2500-limiter at wide open throttle I can take a look at it for you to see if the tune is too conservative. I can run it through my software to see where the power is in relation to my customers cars with similar mods.
after another retune my car response better and achieved 400+ mark with 1.6 bar of boost (pump gas - octane 92) but on the following day i tried wot from 3rd to 4th til 5th gears during a hot sunny day, the knocks register was tremendously high (70~80 range) on pfc commander.
On 1st til 3rd wot and with full boost the knocks counts mostly under 20...
So, there is a source told me that it might be my backpressure problem as it is common for a smaller turbine housing .63 A/R.
Is it true? They said a .82 trim will significantly reduce the knocks but will it be laggy on a GT3076R power by 2.0L?
Thanks
Jun 22, 2011, 10:03 AM
#63
Account Disabled
iTrader: (38)
Join Date: Aug 2005
Location: Virginia Beach, Virginia
Posts: 9,319
Likes: 0
Received 1 Like
on
1 Post
Hi Mellon Racing,
after another retune my car response better and achieved 400+ mark with 1.6 bar of boost (pump gas - octane 92) but on the following day i tried wot from 3rd to 4th til 5th gears during a hot sunny day, the knocks register was tremendously high (70~80 range) on pfc commander.
On 1st til 3rd wot and with full boost the knocks counts mostly under 20...
So, there is a source told me that it might be my backpressure problem as it is common for a smaller turbine housing .63 A/R.
Is it true? They said a .82 trim will significantly reduce the knocks but will it be laggy on a GT3076R power by 2.0L?
Thanks
after another retune my car response better and achieved 400+ mark with 1.6 bar of boost (pump gas - octane 92) but on the following day i tried wot from 3rd to 4th til 5th gears during a hot sunny day, the knocks register was tremendously high (70~80 range) on pfc commander.
On 1st til 3rd wot and with full boost the knocks counts mostly under 20...
So, there is a source told me that it might be my backpressure problem as it is common for a smaller turbine housing .63 A/R.
Is it true? They said a .82 trim will significantly reduce the knocks but will it be laggy on a GT3076R power by 2.0L?
Thanks
Jun 22, 2011, 10:28 AM
#65
Evolved Member
Thread Starter
Jun 22, 2011, 04:43 PM
#66
Newbie
Join Date: Nov 2008
Location: Malaysia
Posts: 96
Likes: 0
Received 0 Likes
on
0 Posts
Post the dyno chart so it will be earier for us to see the AFR & boost curve ...
Then we will know what is going on ...
I suspect your tuner is running very lean causing knocking to achieve high numbers ...
Then we will know what is going on ...
I suspect your tuner is running very lean causing knocking to achieve high numbers ...
Jun 22, 2011, 05:53 PM
#67
Evolved Member
Thread Starter
no laa...If its so simple by just refering to the dyno chart, i dont think there is a problem at first...
AFR is slightly lean on 2000~3500rpm (13.5) & (12~11.7) on 3500 til 7500 redline if refer to the dyno chart.
Highest torque curve is around 4000~5500rpm.
Last edited by jameswwt; Jun 22, 2011 at 05:57 PM.
Thread
Thread Starter
Forum
Replies
Last Post
FS[MidWest]: TX: Cometic .051 HG for 4g63
dsm nexus
For Sale/WTB - Engine / Drivetrain / Power
13
Dec 29, 2015 06:32 AM
Spec-OpsMotorsports
Evo Dyno Tuning / Results
171
Aug 13, 2015 09:53 AM
Waz996
Evo Engine / Turbo / Drivetrain
29
Sep 22, 2007 02:08 AM
