Jordan Posted February 16, 2009 Share Posted February 16, 2009 So I have had this issue for a while and it doesnt seem to be detrimental to anything however it sounds so bad. When aggresiveley accelerating there is a hard clunking noise, I figure with stg2, and a stg1 clutch there is alot more torque that may be moving something excessivley idk, Should i get it checked out or what. Link to comment Share on other sites More sharing options...
Jordan Posted February 16, 2009 Author Share Posted February 16, 2009 Guess nobody likes me here... Link to comment Share on other sites More sharing options...
legacyurabus Posted February 19, 2009 Share Posted February 19, 2009 Is the clunking noise when u shift, or a growling noise while you accelerate? Link to comment Share on other sites More sharing options...
legacy3076 Posted March 9, 2009 Share Posted March 9, 2009 I have the same issue but mine is alittle worse. I have stage2 and a heavy duty clutch/catless exhaust and when i shift aggresivly at all my tranny moves and maybe even the motor now. the reason for this is the bushings being gel filled and for luxury not power. because of this now my exhaust touches the heat shield for the exhaust in the back of the car si it sounds like my car is falling apart lol. I would start looking there. Link to comment Share on other sites More sharing options...
caramall2 Posted March 9, 2009 Share Posted March 9, 2009 In case it's mounts...I installed STI engine mounts and Groupe N MT mount...nice improvement with virtually no increase in vibrations. I didn't install an upgraded pitch stop as it seems that can increase vibrations a lot. Link to comment Share on other sites More sharing options...
Bbc84 Posted March 9, 2009 Share Posted March 9, 2009 I seen some posts about this on NASIOC, and i think people replace the rear diff bushings with stiffer ones to get rid of it. Link to comment Share on other sites More sharing options...
legacy3076 Posted March 10, 2009 Share Posted March 10, 2009 now if i go STI and group N will that handle 400WHP or is it best to step up now Link to comment Share on other sites More sharing options...
PeterJMC Posted March 10, 2009 Share Posted March 10, 2009 I get that nice thud when shifting and accelerating with authority This is with the 5speed STi Tranny mount. I wast thinking of getting some other driveline bushings but I don't think it's a big deal since I almost never romp though the gears like that. I'm an agressive granny shifter. Link to comment Share on other sites More sharing options...
Scrad Posted March 10, 2009 Share Posted March 10, 2009 I used to get that thud until I changed to the ACT clutch and LWFL with an STI pitchrod. Link to comment Share on other sites More sharing options...
legacy3076 Posted March 11, 2009 Share Posted March 11, 2009 Wht is LWFL and how is the STI pitchrod i hear alot of complaints about it but that it works. Link to comment Share on other sites More sharing options...
Scrad Posted March 11, 2009 Share Posted March 11, 2009 LWFL=Lightweight flywheel. When doing the ACT HD clutch a lot of people go with the 06 wrx LWFL. When I got the STI pitch rod and compared it to the stocker I was pissed that it was the same thing only with STI paint on it. But after reading some posts. I guess they use the same mold, but use different materials to make it harder. I guess that it does, because I haven't had any issues with banging. I'll ugrade tranny and engine mounts when I notice more movement out of the engine. Link to comment Share on other sites More sharing options...
caramall2 Posted March 12, 2009 Share Posted March 12, 2009 I'm no expert, but I'd try the engine and tranny mounts, then if you still have issues, try the pitch rod. 400 whp is certainly pretty hefty. Link to comment Share on other sites More sharing options...
legacy3076 Posted March 12, 2009 Share Posted March 12, 2009 gotcha, I have both the ACT heavy duty pressure plate and lightweight flywheel and they grab hard but i didnt notice how much till the mounts went. now when i shift normally they rock the tranny lol. love the clutch though. Link to comment Share on other sites More sharing options...
Scrad Posted March 12, 2009 Share Posted March 12, 2009 Yeah mine was grabbing hard till I got on it a few times and drained out the old oil. Now I have about 1k on it and is shifts smooth. Link to comment Share on other sites More sharing options...
Jordan Posted March 15, 2009 Author Share Posted March 15, 2009 Wow took almost a month to get some responses. Link to comment Share on other sites More sharing options...
Maddie08 Posted March 18, 2009 Share Posted March 18, 2009 I get this exact same noise. So it's not gears bursting, eh? I figured it was just movement as the 1st-2nd and 2nd-3rd when done hard, fast and right (no engine slowdown with a nosedive followed by an axle squat in between gears like a granny) It gives me a pop - or one hammer bang, if you will. Link to comment Share on other sites More sharing options...
Brookmastr Posted May 12, 2009 Share Posted May 12, 2009 i hear that i was told thats how out systems sounds,i shift hard and get that between first and second, pretty much sounds like a thump but it pulls, maybe we are gassing it to soon on shifts and load it up so much, i belive i asked this two years back to my dealer and said it was ok. But thats what im taking out of it. Just got a turbo upgrade i will see if i get any of that tomorrow with the new setup. Link to comment Share on other sites More sharing options...
Bochim Posted May 2, 2013 Share Posted May 2, 2013 Having same issue during hard shifts/disengagements. Link to comment Share on other sites More sharing options...
Max Capacity Posted May 2, 2013 Share Posted May 2, 2013 Having same issue during hard shifts/disengagements. Does your shifter move around a lot ? Try the STI tranny mount. I put one in my wagon back in Aug 04. Tightened up the shifter alot and limited alot of drivetrain movement. $75. at the dealer 305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD). CHECK your oil, these cars use it. Engine Build - Click Here Link to comment Share on other sites More sharing options...
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