Techie Will
-
Posts
2 -
Joined
-
Last visited
Content Type
Profiles
Forums
Gallery
Posts posted by Techie Will
-
-
I'm new to the Legacy GT community, but have owned turbo subarus for several years. Always wanted a 4th gen and happened to come into one recently. It was another person's project car and I know all too well about what I got into with that of course, but I'm trying to give it the justice it deserves and properly going through it.
- 2005 LGT stock motor, only 81k miles
- DW 800cc injectors
- BNR Supercars 20G Turbo
- Cobb 3-port EBCS
- Cobb intake
- Cobb BPV
- Grimmspeed big top mount intercooler
- Tomei UEL headers and up-pipe
- Invidia catted downpipe (I just installed myself)
- Wideband AFR
My problem: Under wide open throttle I'm seeing the car go lean for a brief period of time up top and I don't have an easy explination. From around 5300 to 6000 RPM it leans out from our target of 11 to a 11.8-12.1 and then fattens back up from 6000 - 6500RPM.
My tuner has pointed me in the direction of a pre-turbo exhaust leak and I'm going to be changing the up-pipe gaskets and reseating everything, but I wanted to ask here if anyone had any other ideas on what to check while I'm going over this with a fine tooth comb.
Happy to share logs if anyone wants to look but don't want to post them if that's against any sort of rule around here.Excuse me for being a newbie!Any help would be appreciated.
Saw several others linking logs, so here's two 3rd gear pulls. Innovate Wideband AFR last column on the right.
https://drive.google.com/file/d/1nctsL80Be5kvhCGiOuC7x0UYUTOuoRSj/view?usp=share_link
https://drive.google.com/file/d/1AT9hJWpBkOpx7OOuNIeZ_nbJ-W1G-lFU/view?usp=sharing
Running lean for limited time in boost
in Turbo Powertrains (2.0GT, 2.5GT, 2.5XT)
Posted
Yes these are sidefeeds. Is that just a live with it problem then?
I don't have any plans going to bigger injectors so probably won't be converting to topfeed any time soon unless this ends up being a brick wall.