Friday, November 06, 2009 - 01:34 pm, by: Austen Menze(Mercyfulfate)
Is a Soarer meant to pull hard to redline? WOT on mine winds up 16psi and pulls hard till about 4500rpm then it gets lazy, no farting or popping or boost cut or anything it just gets slack.
Now I'm thinking the ECU is pulling timing but the knock levels on my SAFC2 stay pretty low.. and I don't know what it feels like when timing gets pulled.
Would this be a spark gap issue? I've currently got NGK BKR6 iridiums at 0.9. Crackless coilpacks, new connectors and Ultimate 98
And my crank/cam timing is out by 2 or 3 degrees, don't know if this would have any effect.
Friday, November 06, 2009 - 02:06 pm, by: Daniel Clarke(Dieseltrain)
Cam timing will effect it for sure . How do you know its only 2-3 degrees ? is it 1 tooth completely out ? or is 1 cam out ?
Also , dont rely on an SAFC for knock readings . Good chance it may be detonating due to the settings in the SAFC and pulling timing out up top, which would make it feel a little lazy .
ANother thing that can have this symptom is a Blocked or Collapsed Cat or restrictive exhaust system .
Wednesday, November 25, 2009 - 07:46 pm, by: Austen Menze(Mercyfulfate)
Actually no scrap that, bloody thing still does it! This is what I've done so far..
Fixed cam/crank timing New coilpacks New coilpack connectors New BKR6IX at 0.7mm Greddy FCD set at 4.15v New fuel filter New pod air filter Cleaned intake air temp sensor Cleaned plenum and throttle body
Also ran 2 cans of subaru upper engine cleaner and 2 bottles of Techron 5000 a few tanks ago.
Hmm.. is this normal behaviour for a 1JZ? Any ideas anyone? It's really •••••••• me
Thursday, November 26, 2009 - 07:17 am, by: Daniel Clarke(Dieseltrain)
Check for a blocked or collapsed cat convertor . This will restrict power . And also check for boost leaks . All intercooler clamps and vac lines as well as checking pipes for signs of rubbing and pin holes .
Wednesday, December 02, 2009 - 07:59 pm, by: Austen Menze(Mercyfulfate)
Ok well I couldn't take the exhaust off because it's all welded up until the y-pipe. So I tried unbolting it from that and I don't have enough extensions bah!
Is there a way to test the cat other than kicking it?
Sunday, December 06, 2009 - 12:52 pm, by: Austen Menze(Mercyfulfate)
Okay so I dropped the exhaust this morning right after the dumps, HOLY F*** WHAT A SOUND!
Turbos are near instant spooling! But the lack of power was still there.. inspected ALL hoses again and they all look sweet. Disconnected the boost controller and just hooked the pressure and wastegates up as stock. Held 12.5 psi nicely so that left the boost controller as a problem..
Went through all the different settings on the boost controller and found a few menus I've never been into before, one of which was a limiter or something. From what I could gather it appeared that it was set to limit boost to 40% duty cycle if it detects over 15psi. Damn secondhand units..
So, turned that off and gave it another run, no power drop off WOO HOOOO! I have yet to bolt the exhaust back up because it sounds so badarse haha.
Fullboosted past a VY SS who had his window down and he shat himself hahah.
Thanks for all the help Daniel your Soarer is an inspiration I think I'll get the cat changed anyway as I have a spare 3" ceramic magnaflow somewhere.
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