NF Performance Posted May 13, 2013 Share Posted May 13, 2013 NF Performance is currently working on a Fifth Gen 2010 LGT and we have taken some photos along the way. They will be posted here (and more will be added along the way): http://www.benjohnsonphotography.com/Cars/2010-Subaru-Legacy-GT-Photos/29394846_r2M9b7 http://www.benjohnsonphotography.com/photos/i-kcmNCSw/0/L/i-kcmNCSw-L.jpg http://www.benjohnsonphotography.com/photos/i-WF2Knrw/0/L/i-WF2Knrw-L.jpg http://www.benjohnsonphotography.com/photos/i-ZfgKwVB/0/L/i-ZfgKwVB-L.jpg http://www.benjohnsonphotography.com/photos/i-6bpRqsk/0/L/i-6bpRqsk-L.jpg http://www.benjohnsonphotography.com/photos/i-5pGs52N/0/L/i-5pGs52N-L.jpg http://www.benjohnsonphotography.com/photos/i-g64DsLL/0/L/i-g64DsLL-L.jpg http://www.benjohnsonphotography.com/photos/i-BfXPD6T/0/L/i-BfXPD6T-L.jpg http://www.benjohnsonphotography.com/photos/i-fKDC2Sg/0/L/i-fKDC2Sg-L.jpg http://www.benjohnsonphotography.com/photos/i-nvv8V9c/0/L/i-nvv8V9c-L.jpg Thanks for looking! Link to comment Share on other sites More sharing options...
SurlyOldManMN Posted May 13, 2013 Share Posted May 13, 2013 Subscribed. Link to comment Share on other sites More sharing options...
GTEASER Posted May 13, 2013 Share Posted May 13, 2013 Subscribed. :lol: GTEASER's 2012 Legacy GT - Sold GTEASER's 2009 XTeaser - Sold GTEASER's 1992 Legacy SS - Sold Link to comment Share on other sites More sharing options...
Perscitus Posted May 13, 2013 Share Posted May 13, 2013 Can you take some good photos and measurements of the crankshaft pulley and belt? Plust the key bolt that holds the crankshaft pulley in place. That would help a great deal on our LWCP quest. Any photos of the accessory pullies most welcome too. Link to comment Share on other sites More sharing options...
13FLGT Posted May 13, 2013 Share Posted May 13, 2013 listen here Meow, maybe R&D the LWCP Meow and maybe pistons meow! Link to comment Share on other sites More sharing options...
fahr_side Posted May 14, 2013 Share Posted May 14, 2013 Could you please measure the following for us? I'd very much like to have this data in order to assess the performance potential for this engine vs. previous generations and the STi EJ257. Combustion chamber cc. Piston dish cc. Deck height. Valve diameter Cam lift (lobe height - base circle). Cam centerline degrees. I know this is a tough one. It's not clear so far what the real compression ratio, and Subaru's own numbers aren't always that accurate. It would be interesting to know if they went with something like the B25, D25, or something totally new. We're also in the dark as to the cam design compared to the STi EJ257 dual AVCS cams, and the mapping on AVCS timing is so different. I thank you on behalf of the community for going the extra mile. Obligatory '[URL="http://legacygt.com/forums/showthread.php/2008-gh8-238668.html?t=238668"]build thread[/URL]' Increased capacity to 2.7 liters, still turbo, but no longer need spark plugs. Link to comment Share on other sites More sharing options...
SpidermanMTL Posted May 14, 2013 Share Posted May 14, 2013 scribed MY BUILD TAKE 2 : http://legacygt.com/forums/showthread.php/spideys-12lgt-take-2-266018.html Link to comment Share on other sites More sharing options...
FuJi K Posted May 19, 2013 Share Posted May 19, 2013 Some progress http://i18.photobucket.com/albums/b121/FuJi_K/Engine%20rebuilds/20130518_235624_zps508f90f8.jpg Link to comment Share on other sites More sharing options...
fahr_side Posted May 19, 2013 Share Posted May 19, 2013 (edited) Nice. If FuJi K the famous cylinder head nerd is in on the measurement project, this is awesome news! http://forums.nasioc.com/forums/showpost.php?p=39795541&postcount=565 Do you see the 'W25' cast into the water gallery in the last photo? Seems pretty clear then that the chambers are the same as on the STi W25 head. A friend of mine had his hands on a '10 shortblock and measured the piston dish at -19cc. Assuming (yes, I know) the usual 0.3mm deck height and usual gasket thickness, with the B25 / W25's 56cc chambers that would work out to a CR of 8.44:1. By the same calculation, the STi with -22cc dish comes out around 8.21:1, so it's the right ballpark. I'd love to see a photo of the drive arrangement for the scavenge oil pump. It would be interesting to know if the cams are different in having something on the passenger side intake cam to drive it, for the sake of knowing if DAVCS STi cams could be used in these heads... Edited May 19, 2013 by fahr_side Obligatory '[URL="http://legacygt.com/forums/showthread.php/2008-gh8-238668.html?t=238668"]build thread[/URL]' Increased capacity to 2.7 liters, still turbo, but no longer need spark plugs. Link to comment Share on other sites More sharing options...
SurlyOldManMN Posted May 19, 2013 Share Posted May 19, 2013 Nice. If FuJi K the famous cylinder head nerd is in on the measurement project, this is awesome news! Yes, yes he is. That would be the "F" of NF performance. There is a reason they are one of two shops I'm willing to trust with "the other woman". Link to comment Share on other sites More sharing options...
FuJi K Posted May 19, 2013 Share Posted May 19, 2013 Cam driven http://i18.photobucket.com/albums/b121/FuJi_K/Engine%20rebuilds/20130512_210219_zps2ef2235d.jpg http://i18.photobucket.com/albums/b121/FuJi_K/Engine%20rebuilds/20130512_210229_zps7dd191d1.jpg Link to comment Share on other sites More sharing options...
eckseleven Posted May 19, 2013 Share Posted May 19, 2013 Subscribed. Link to comment Share on other sites More sharing options...
Philberto Posted May 19, 2013 Share Posted May 19, 2013 ...as well Link to comment Share on other sites More sharing options...
CL21376 Posted May 19, 2013 Share Posted May 19, 2013 Subscribed. Glad to see this starting to come together Link to comment Share on other sites More sharing options...
derp Posted May 20, 2013 Share Posted May 20, 2013 Subb'd. Hai foo! I could suck start a snow blower. Link to comment Share on other sites More sharing options...
BEVE Posted May 20, 2013 Share Posted May 20, 2013 scribed Link to comment Share on other sites More sharing options...
minuccims Posted May 23, 2013 Share Posted May 23, 2013 Eager to follow the build. Link to comment Share on other sites More sharing options...
ebo03 Posted May 25, 2013 Share Posted May 25, 2013 Subscribed Link to comment Share on other sites More sharing options...
FuJi K Posted May 27, 2013 Share Posted May 27, 2013 I'd love to see a photo of the drive arrangement for the scavenge oil pump. It would be interesting to know if the cams are different in having something on the passenger side intake cam to drive it, for the sake of knowing if DAVCS STi cams could be used in these heads... This is from a W25 head. Passenger intake cam. you know what to make of it. http://i18.photobucket.com/albums/b121/FuJi_K/Engine%20rebuilds/20130526_205012_zps1034bc7b.jpg Link to comment Share on other sites More sharing options...
FuJi K Posted May 27, 2013 Share Posted May 27, 2013 (edited) http://i18.photobucket.com/albums/b121/FuJi_K/Engine%20rebuilds/20130525_225500_zps81090927.jpg Edited May 27, 2013 by FuJi K Link to comment Share on other sites More sharing options...
fahr_side Posted May 29, 2013 Share Posted May 29, 2013 The FSM gives the following info on the cams: Intake 46.55 — 46.65 mm lobe height Exhaust 45.85 — 45.95 mm lobe height Cam base circle diameter: 37.0 mm (1.457 in) So, lift for intake is 9.55~9.65mm while exhaust is 8.85~8.95mm. Commonly available specs for the EJ257 cams is 9.60mm lift for intake vs. 9.8mm for exhaust. So, it seems the '10 LGT motor lost quite a lot of exhaust lift in exchange for the added AVCS. I wonder if dual AVCS EJ257 exhaust cams would fit the E25 heads... Obligatory '[URL="http://legacygt.com/forums/showthread.php/2008-gh8-238668.html?t=238668"]build thread[/URL]' Increased capacity to 2.7 liters, still turbo, but no longer need spark plugs. Link to comment Share on other sites More sharing options...
s2baru Posted July 14, 2013 Share Posted July 14, 2013 Forgive me for asking but what benefit would that have for us if dual avcs could be done??? Link to comment Share on other sites More sharing options...
Austin2334 Posted July 14, 2013 Share Posted July 14, 2013 Wanna see more! Link to comment Share on other sites More sharing options...
GTEASER Posted July 14, 2013 Share Posted July 14, 2013 Forgive me for asking but what benefit would that have for us if dual avcs could be done??? I believe the benefit of EJ257 exhaust cams would be more power in the higher rpms. GTEASER's 2012 Legacy GT - Sold GTEASER's 2009 XTeaser - Sold GTEASER's 1992 Legacy SS - Sold Link to comment Share on other sites More sharing options...
wurkenman Posted July 15, 2013 Share Posted July 15, 2013 NF is in the house!! If you woke up today, you have another chance to do it right. Link to comment Share on other sites More sharing options...
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