1-3-2-4 Posted June 24, 2015 Share Posted June 24, 2015 I forgot where I saw this at but is this true for Subaru? Link to comment Share on other sites More sharing options...
mightyS Posted June 25, 2015 Share Posted June 25, 2015 My car has a LW crank pulley for the last 90,000 miles. It was street tuned by a Cobb protuner and later by Topspeed in Atlanta. Neither said anything about the LW pulley. Link to comment Share on other sites More sharing options...
xt2005bonbon Posted June 25, 2015 Share Posted June 25, 2015 I would think they won't like light weight crank pulley combined with a light weight flywheel. In any case, I kept reading on here that this combination is not very good. Link to comment Share on other sites More sharing options...
whitetiger Posted June 25, 2015 Share Posted June 25, 2015 ^had both on my 05 lgt. not 1 issue. Link to comment Share on other sites More sharing options...
xt2005bonbon Posted June 25, 2015 Share Posted June 25, 2015 ^had both on my 05 lgt. not 1 issue. Well then, I am not sure.. As for me, I have an LWCP on both of my cars and no issues. Link to comment Share on other sites More sharing options...
doobaruGT Posted June 25, 2015 Share Posted June 25, 2015 I have both and no issues. LWFW from Competition Stg II Kit and GS LWCP installed yesterday. Idles like butter. Currently tuned by Bren. Updated parts list since original part-out here. Original Full part-out of my LGT HERE! Link to comment Share on other sites More sharing options...
starionesir Posted June 27, 2015 Share Posted June 27, 2015 I also have a light weight crank pulley. No light flywheel as I'm a 5EAT but no issues at all with tuning. Link to comment Share on other sites More sharing options...
1-3-2-4 Posted June 27, 2015 Author Share Posted June 27, 2015 Man from all I hear about people having stalling issues in the '05 with a LWFW can I use I think it's a '06 WRX SMFW that's not light weight? Link to comment Share on other sites More sharing options...
xtea Posted June 28, 2015 Share Posted June 28, 2015 LWFW cause problems? How? I have one, and am currently having issues with fuel trim. Might it be related to be the LWFW? Link to comment Share on other sites More sharing options...
covertrussian Posted June 29, 2015 Share Posted June 29, 2015 LW Crank pulley on it's has proven itself to not have any ill effects so far. Your stock crank pulley is more likely to separate and destroy a lot of things. It's not suggested to run LW crakpulley and LW flywheel at the same time due to CEL's coming up. This is why GrimmSpeed Crank Pulley is heavier then most. @xtea, fuel trims are probably your intake/maf/o2 sensor related and not flywheel related. 05 LGT 16G 14psi 290whp/30mpg (SOLD) 12 OBP Stock 130whp/27mpg@87 Oct 00 G20t GT28r 10psi 250whp/36mpg 22 Ascent STOCK Link to comment Share on other sites More sharing options...
Streetlegal Posted June 29, 2015 Share Posted June 29, 2015 LW Crank pulley on it's has proven itself to not have any ill effects so far. Your stock crank pulley is more likely to separate and destroy a lot of things. It's not suggested to run LW crakpulley and LW flywheel at the same time due to CEL's coming up. This is why GrimmSpeed Crank Pulley is heavier then most. @xtea, fuel trims are probably your intake/maf/o2 sensor related and not flywheel related. Possibly a dumb question but can't you just turn off that code? They are missfire codes correct? Are you able to change the parameters of when they are set off or no? Link to comment Share on other sites More sharing options...
covertrussian Posted July 1, 2015 Share Posted July 1, 2015 You can disable that code, but IMO that's a very bad idea. You could be getting a real misfire due to bad plugs/coilpacks/injectors and you wouldn't show that code. So far it doesn't seem like you can control CEL logic. 05 LGT 16G 14psi 290whp/30mpg (SOLD) 12 OBP Stock 130whp/27mpg@87 Oct 00 G20t GT28r 10psi 250whp/36mpg 22 Ascent STOCK Link to comment Share on other sites More sharing options...
1-3-2-4 Posted July 1, 2015 Author Share Posted July 1, 2015 LW Crank pulley on it's has proven itself to not have any ill effects so far. Your stock crank pulley is more likely to separate and destroy a lot of things. It's not suggested to run LW crakpulley and LW flywheel at the same time due to CEL's coming up. This is why GrimmSpeed Crank Pulley is heavier then most. Did not know that about the GrimmSpeed Link to comment Share on other sites More sharing options...
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