GM 3-port, Forge WGA + an amazing tune from Chris @ EFI on my MR
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GM 3-port, Forge WGA + an amazing tune from Chris @ EFI on my MR
Last time I went to EFI, Chris was trying out some things with my MR and couldn't get the ECU and stock boost control system to hold the boost. Thanks to hybridKOOP, we installed the GM 3-port and added a Forge WGA to support it. We were able to get tq as high as 350, but the transmission didn't like it so we obviously scaled it back some. I will let the dyno sheet speak for itself.
Thanks again Chris for an awesome tune! 304whp/311tq on EFI's Mustang dyno. The car feels amazing! The power hits hard, throttle is smooth, and shifts are crisp!
Mods:
Greddy Ti-C
Cobb downpipe
Cobb high flow cat
ARC intake
ARC FMIC
GM 3-port boost solenoid
Forge WGA
Thanks again Chris for an awesome tune! 304whp/311tq on EFI's Mustang dyno. The car feels amazing! The power hits hard, throttle is smooth, and shifts are crisp!
Mods:
Greddy Ti-C
Cobb downpipe
Cobb high flow cat
ARC intake
ARC FMIC
GM 3-port boost solenoid
Forge WGA
Last edited by 617G; Aug 30, 2009 at 09:14 PM.
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The GM 3-port boost solenoid replaces the stock 2-port system and all pills; there are no more pills. The ECU controls boost just like stock and the Forge WGA spring is set to 19psi. The dotted line is boost.
#4
Thanks for the compliments Andy.
Here is his run on our dyno database.. Select any variable on the dyno plot, then mouse over to track the boost anywhere on the plot: http://efilogics.com/dyno/index.php?...&torque=1&gb=0
Thanks,
Chris
Here is his run on our dyno database.. Select any variable on the dyno plot, then mouse over to track the boost anywhere on the plot: http://efilogics.com/dyno/index.php?...&torque=1&gb=0
Thanks,
Chris
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Am i looking at the graph right? is there a loss on the low end?
Also how did the SST react to the 350 ft lbs? Details? did the ecu cut power, slip clutches, "slow down" warning, etc?
Also how did the SST react to the 350 ft lbs? Details? did the ecu cut power, slip clutches, "slow down" warning, etc?
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What do you mean by quite a bit? If you look at where the two boost graphs overlap, I lost maybe 100 RPM of spool time? I think that's pretty inconsequential. I hit almost 27psi at roughly 3,500 RPM...that's pretty impressive if u ask me.
At 350wtq the SST just gives up and lets go...It would not hold the power. I heard it, but Chris can elaborate on what it actually did.
At 350wtq the SST just gives up and lets go...It would not hold the power. I heard it, but Chris can elaborate on what it actually did.
Last edited by 617G; Aug 31, 2009 at 11:29 AM.
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Because we have a Mustang 500SE, the 350wtq may be a little more than the SST is really happy with
Thanks,
Chris
Last edited by EFI Logics; Aug 31, 2009 at 02:20 PM.
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Sounds like you were hitting the air flow limit and the torque tables are not adjusted properly. When SST doesn`t like the power it works the magic of holding off power, neutral pull is another issue...
When the car hit 28psi (350wtq), the transmission just let go, like you put it in neutral during the pull.. It did this twice, once at 28psi, and again at 27psi (335wtq).. This really discouraged me from pushing the car hard, so we backed it down at peak torque by manipulating the MIVEC / Target Boost / Fine and Coarse WGDC tables.. The drop in power before peak torque is the product of the tune being backed down for safety of the transmission.
Because we have a Mustang 500SE, the 350wtq may be a little more than the SST is really happy with
Thanks,
Chris
Because we have a Mustang 500SE, the 350wtq may be a little more than the SST is really happy with
Thanks,
Chris
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- Chris
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