quattros4 Posted April 13, 2010 Share Posted April 13, 2010 so today me and my buddy did his up-pipe and header swap and now for some reason hes getting no boost? any suggestions? Link to comment Share on other sites More sharing options...
B-Power-B Posted April 13, 2010 Share Posted April 13, 2010 wouldn't that be a vacuum line or whatever the turbo lines are? Link to comment Share on other sites More sharing options...
SBT Posted April 13, 2010 Share Posted April 13, 2010 wastegate actuator arm bushing is bad and the WG is pushed half-on/half-off the WG orifice. - Pro amore Dei et patriam et populum - Link to comment Share on other sites More sharing options...
quattros4 Posted April 13, 2010 Author Share Posted April 13, 2010 ^^ could be but why would it just start acting up now? we have checked for boost leaks havent found any.. Link to comment Share on other sites More sharing options...
quattros4 Posted April 13, 2010 Author Share Posted April 13, 2010 im new to these cars but i think he has a vf 46 turbo ? its a 07 lgt. what turbos are a direct fit for this car? just incase he has to get a new turbo? and what would be a good replacement turbo? Link to comment Share on other sites More sharing options...
rockle3 Posted April 13, 2010 Share Posted April 13, 2010 vf 40 Link to comment Share on other sites More sharing options...
quattros4 Posted April 13, 2010 Author Share Posted April 13, 2010 vf 40 are you saying his turbo is a vf-40 ? or i should replace with a vf 40? Link to comment Share on other sites More sharing options...
quattros4 Posted April 13, 2010 Author Share Posted April 13, 2010 would a vf52 be direct fit in his car? Link to comment Share on other sites More sharing options...
SBT Posted April 14, 2010 Share Posted April 14, 2010 ^^ could be but why would it just start acting up now? we have checked for boost leaks havent found any.. Because this happened to me during a cross-country trip - last 450 mile leg to be exact. One moment I'm getting solid 17+psi, the next second no boost and that continued until I pulled the turbo and replaced it. That's when I found the WG flapper valve was sitting well outside it's normal open closed line and was moved toward the actual turbine exhaust port. Think only 1/4 to 1/3 of the way across the WG, the remaining 2/3 to 3/4 the WG orifice is wide open.. - Pro amore Dei et patriam et populum - Link to comment Share on other sites More sharing options...
SBT Posted April 14, 2010 Share Posted April 14, 2010 VF 40 or VF 46 would be a direct replacement - although I'd do a dyno pull to check/manage AFR if you're changing to a VF 40, just to be sure. I wouldn't go with a VF 52 without supporting mods, i.e., injectors, pump and tuning. - Pro amore Dei et patriam et populum - Link to comment Share on other sites More sharing options...
quattros4 Posted April 14, 2010 Author Share Posted April 14, 2010 does anyone know the difference between a vf46 and vf52 size Link to comment Share on other sites More sharing options...
Legend Posted April 14, 2010 Share Posted April 14, 2010 does anyone know the difference between a vf46 and vf52 size 37whp difference her in Colorado. YMMV. My '05 LGT My '07 Supercharged Shelby Link to comment Share on other sites More sharing options...
quattros4 Posted April 14, 2010 Author Share Posted April 14, 2010 so his 07 lgt has a vf46 right? what car did the vf 52 come with Link to comment Share on other sites More sharing options...
Legend Posted April 14, 2010 Share Posted April 14, 2010 so his 07 lgt has a vf46 right? what car did the vf 52 come with 2009-2010 WRX. Not sure what else. Here is a good example of what it can do. My '05 LGT My '07 Supercharged Shelby Link to comment Share on other sites More sharing options...
quattros4 Posted April 14, 2010 Author Share Posted April 14, 2010 so for him to use a vf 52 he would need injectors fpr and a tune right? i havent read to much about how the accessports work anyone willing to explain it to me ... sorry for being such a PITA noob haha Link to comment Share on other sites More sharing options...
I 5EAT Turkey Clubs Posted April 14, 2010 Share Posted April 14, 2010 so his 07 lgt has a vf46 right? what car did the vf 52 come with 05-06 = VF40 07+ = VF46 09+ WRX = VF52 (not from a Legacy initially but fits) Any of those will work on his car without upgrades (the VF52 really needs some added goodies though). VF40's have been rumored to be slightly less reliable than the VF46. VF52 will give you more powaaaa Link to comment Share on other sites More sharing options...
Strizzy Posted April 14, 2010 Share Posted April 14, 2010 VF52 will require supporting mods. If you are thinking about going that route, skip the AccessPort as that is a handheld device for loading modified ECU maps. It would be much cheaper to go OpenSource with a Tactrix cable (which is about $400 cheaper with same end results). OT: Legend, what are your hp/tq numbers with the vf52? I've been thinking of going that route with E85, but I'm at pushing 306/337 on a Mustang dyno here in the lower altitude of IL on the stock vf46 (22.9psi) and 93octane. My bad luck build Link to comment Share on other sites More sharing options...
Legend Posted April 14, 2010 Share Posted April 14, 2010 OT: Legend, what are your hp/tq numbers with the vf52? I've been thinking of going that route with E85, but I'm at pushing 306/337 on a Mustang dyno here in the lower altitude of IL on the stock vf46 (22.9psi) and 93octane. Check my sig. I've got a lotta good info on the VF52. My '05 LGT My '07 Supercharged Shelby Link to comment Share on other sites More sharing options...
quattros4 Posted April 14, 2010 Author Share Posted April 14, 2010 i have seen ap for pretty cheap on the classifieds what would i be wanting to look for? ive noticed some are married and not married? how many tunes do they come with? and how aggressive are they? Link to comment Share on other sites More sharing options...
nsrt4me Posted February 15, 2012 Share Posted February 15, 2012 Could this be fixed by replacing the wastegate actuator? This problem just happened to me after installing headers and an uppipe on my 05 lgt. Link to comment Share on other sites More sharing options...
Firepuma Posted February 15, 2012 Share Posted February 15, 2012 Vf52 just needs a pump. No injectors. I have stock injectors an make ....well, see my sig. Link to comment Share on other sites More sharing options...
06_legacygt Posted February 15, 2012 Share Posted February 15, 2012 Vf52 just needs a pump. No injectors. I have stock injectors an make ....well, see my sig. what sig? 2006 Legacy GT 5EAT Perrin UP, SPT CAI, OBXR CBE, Catless DP, Perrin TMIC, Stage 2 AP tune Soon after BNR 16G, Infamous Tune Link to comment Share on other sites More sharing options...
Firepuma Posted February 15, 2012 Share Posted February 15, 2012 Sorry, the stuff to left- what my Car makes for Power. Link to comment Share on other sites More sharing options...
nsrt4me Posted February 16, 2012 Share Posted February 16, 2012 Fixed my car, stupid problem. The bov vac line popped off :0 Link to comment Share on other sites More sharing options...
Mega Users paintpollz Posted February 16, 2012 Mega Users Share Posted February 16, 2012 zip ties "Remember Danny - Two wrongs don't make a right but three rights make a left." Link to comment Share on other sites More sharing options...
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