Modified A Tune - Dyno Results
#1
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Modified A Tune - Dyno Results
Thought I would share some results. Had Rogue modify my A-Tune so I could run E85 (this re-tune was free, thanks Rogue ). This required that I add larger injectors to accommodate the higher flow. I bought the 80 lb injectors Rogue sells with the M-Tune (upgrade to M-Tune will now be very easy with MAP and injectors already installed) . I also installed a Tial 38 mm WG.
Mods: A-Tune, 3 bar FPR, MBC, 2.5" Test Pipe, 80 lb injectors, Tial 38, E85, 18 psi
Comparison with original A-Tune install (Mods: A-Tune, 3 bar FPR, MBC, 2.5" Test Pipe, 15 psi)
I really thought I would see more power after driving the car but I guess I was feeling the healthy increase in torque. The car is a blast to drive
I think this is about as much as I am going to get from the K26/6 (boost still fell off to about 11.5 psi). My fall project will be new turbo and the M-Tune
Mods: A-Tune, 3 bar FPR, MBC, 2.5" Test Pipe, 80 lb injectors, Tial 38, E85, 18 psi
Comparison with original A-Tune install (Mods: A-Tune, 3 bar FPR, MBC, 2.5" Test Pipe, 15 psi)
I really thought I would see more power after driving the car but I guess I was feeling the healthy increase in torque. The car is a blast to drive
I think this is about as much as I am going to get from the K26/6 (boost still fell off to about 11.5 psi). My fall project will be new turbo and the M-Tune
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Interesting – it looks like you are losing some top end power while running higher boost setting. Sounds like your boost controller or wastegate is not quite up to the task, I have seen K26/6 hold more boost up to 6k.
Its always a good idea to plot the boost on a dyno chart – it will explain a lot of the changes in the curves.
All that being said – nice torque numbers! That’s what I like about these cars, you don’t need a mondo turbo to make big midrange torque!
Its always a good idea to plot the boost on a dyno chart – it will explain a lot of the changes in the curves.
All that being said – nice torque numbers! That’s what I like about these cars, you don’t need a mondo turbo to make big midrange torque!
#11
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Chris,
Thanks for the feedback. Top end power differences may not be as dramatic as they appear as I made a conscience decision to not go all the way to redline. Here is the log:
Even so I did expect a bit more power on the top as I was running about 2 more psi on at 6300. New Tial and faily new LR MBC.
Thanks for the feedback. Top end power differences may not be as dramatic as they appear as I made a conscience decision to not go all the way to redline. Here is the log:
Even so I did expect a bit more power on the top as I was running about 2 more psi on at 6300. New Tial and faily new LR MBC.
#14
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I was thinking that the dropoff in power up to may be due to the intercooler heating up more earlier in the run. It also looks like it could be leaned out a little bit, but the afrs are very stable and safe.
What are you logging on your 5v input?
What are you logging on your 5v input?
#15
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Sid,
User 1 is AFM voltage. I am not running a PB. I originally was running FQS at position 0 but moved to Position 1 and it is a little rich but safe. Running E85 and the larger injectors exacerbate the variance in the AFM (thus the M-Tune) and I am running on the safe side. The move to FQS #1 was the extent of my tuning. Absolutely no knock at 18 psi.
User 1 is AFM voltage. I am not running a PB. I originally was running FQS at position 0 but moved to Position 1 and it is a little rich but safe. Running E85 and the larger injectors exacerbate the variance in the AFM (thus the M-Tune) and I am running on the safe side. The move to FQS #1 was the extent of my tuning. Absolutely no knock at 18 psi.