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View Full Version : 2008 Subaru Legacy GT 5MT - 275whp / 291wtq

BG @ BrenTuning
09-20-2010, 06:25 PM
This car was brought to the dyno day for a last minute tune and the results were surprising.

2008 Subaru LGT
Fuel: 93 octane
Location: PSi
Dyno: Dynapack
Peak boost: 17.7 psi to 12 psi taper

Modifications:

Catted turboback exhaust
Forge BPV
X02 FMIC
Stock airbox

Notes:

Stock boost solenoid was out of duty cycle so we kept the boost low for now
Look at the flat power up top :eek:
I normally get 25x whp on a VF40 LGT on this dyno
Made in excess of 310wtq in some pulls but that was when the BCS decided to play nice
Cars with coilovers tend to shake or waver on the dyno when on a soft setting.

Chart:

http://img.photobucket.com/albums/v412/brenwrx/2008LGTfmicvf46.jpg?t=1285021186
Bu11dogg2
09-20-2010, 06:34 PM
It's a VF46 :hide:
BG @ BrenTuning
09-20-2010, 07:02 PM
It's a VF46 :hide:
We know, I didn't say otherwise :) I just benchmarked it against other VF40 LGT's showing the power difference from what I normally see. :cool:

oh and before anyone calls on it, the dyno operator saw the brembos and sti insignias all over the car and assumed it was an 08 sti :)
Bu11dogg2
09-20-2010, 07:05 PM
Is there really a difference though? I hear only mid range
shtbxr22
09-20-2010, 07:40 PM
mid/high.
shtbxr22
09-20-2010, 07:41 PM
bren: AVO 50/50 BPV, and has wiseco pistons. :)
shtbxr22
09-20-2010, 07:47 PM
http://www.youtube.com/watch?v=ysDk-dfZY6A
08Legacy08
09-20-2010, 08:31 PM
Thanks to Bren, the car can run! =)
BG @ BrenTuning
09-20-2010, 10:16 PM
bren: AVO 50/50 BPV, and has wiseco pistons. :)

I forgot you built it. Must have been why it was so knock resistant :)
BG @ BrenTuning
09-20-2010, 10:17 PM
Thanks to Bren, the car can run! =)

A pleasure, always great to see a person who can appreciate a well rounded tune.
08Legacy08
09-23-2010, 07:56 PM
Bren, I'm boosting at 21psi... FYI.
BG @ BrenTuning
09-23-2010, 09:30 PM
Bren, I'm boosting at 21psi... FYI.

It wasn't make any more power and your controller wasn't consistent, so it was backed off for that final run above :) Other runs made 310wtq and more.
shtbxr22
09-24-2010, 06:27 AM
make that trip down "south", and go get your GS boost solenoid shaun. ;)
BG @ BrenTuning
09-24-2010, 07:50 AM
make that trip down "south", and go get your GS boost solenoid shaun. ;)

YES :D

And HTA68 :spin: