JK89 Member 56 Member For: 13y 10m 25d Posted 10/11/12 12:18 AM Share Posted 10/11/12 12:18 AM Hey guys,Just wanted to get some advice. Just recently my car has started breathing heavier then usual.My Mods are;Billet to4z turbo with std rear housing and .85 front650cc InjectorsPlazmaman intercooler w/ throttle body relocation kit (3" cold side 2.5" hot side)Surge tank with external 044 fuel pumpExternal wastegate w/ screamer pipe4" dump with 3.5" exhaust and high flow catCushion button clutch and t56 gearboxAtomic Valve SpringsBasic oil catchcan for the rear breatherCar is making a safe and reliable 335kw atw. Now tuner has said I can go more but I dont want to break the engine ( its not a BA engine, its a NA one I believe but not risking anything until I know for sure what the hell is in the bottom end) All I know is ive had this thing on the limiter and stretched the redline point to 6500 and still goes hard everyday without missing a beat.Its always had a breathing issue and little amount of oil coming out. When I idled it the other day it was still running fine no issues but breathing 2x heavier then usual but same amount of oil maybe a smidge more. Can anyone shed some light on this please? or let me know exactly whats going whether my oil rings are on the way out of if they know of people with the same issue and no dramas? would just prefer some more detail info?I had a seperate tuner look at it when it was making 285rwkw and he just said engine is gone its going to blow dont bother wasting your time etc, but im now at 335rwkw and no dramas..... yet (touchwood).thanks 1 Link to comment Share on other sites More sharing options...
Ralph Wiggum Moar Powar Babeh Lifetime Members 19,323 Member For: 19y 1m 11d Gender: Male Location: Perth Posted 10/11/12 01:36 AM Share Posted 10/11/12 01:36 AM Car is making a safe and reliable 335kw atw.Contradiction in terms there mate if you have an Na bottom end. If it's started breathing heavy and the crankcase ventilation system doesn't have any obviously flaws you've probably got a piston/ring issue. Link to comment Share on other sites More sharing options...
JK89 Member 56 Member For: 13y 10m 25d Posted 10/11/12 01:40 AM Author Share Posted 10/11/12 01:40 AM (edited) im pretty sure its NA block with something in it. Not a BA XR6T bottom end. Theres no way a std bottom end would support 335rwkw.Theres also no air intake on turbo at the moment coz of the size of the front cover - have one being made up - shouldnt really make a difference to my breathing problemapart from the fact I can route it back into the intake.ps ralph its the thurple ute haha RIP 571! Edited 10/11/12 01:43 AM by JK89 Link to comment Share on other sites More sharing options...
Ralph Wiggum Moar Powar Babeh Lifetime Members 19,323 Member For: 19y 1m 11d Gender: Male Location: Perth Posted 10/11/12 01:46 AM Share Posted 10/11/12 01:46 AM NA/Turbo block =Same/Same. Looks like you have a decent catch can setup so check that out for any blockage issues.Where abouts are you located? You may need to find a decent mechanic for a leakdown test Link to comment Share on other sites More sharing options...
Mrs Jeturbo Bob the Freaking Builder Donating Members 10,810 Member For: 15y 1m 21d Gender: Female Location: SA Posted 10/11/12 02:07 AM Share Posted 10/11/12 02:07 AM im pretty sure its NA block with something in it. Not a BA XR6T bottom end. Theres no way a std bottom end would support 335rwkw.Theres also no air intake on turbo at the moment coz of the size of the front cover - have one being made up - shouldnt really make a difference to my breathing problemapart from the fact I can route it back into the intake.ps ralph its the thurple ute haha RIP 571!335 on a standard ba bottom end has happened several times now.. it's very doable... but still a grenade lol Link to comment Share on other sites More sharing options...
JK89 Member 56 Member For: 13y 10m 25d Posted 10/11/12 02:28 AM Author Share Posted 10/11/12 02:28 AM Aren't the internals different between the two? I'm pretty sure a na xr6 block would pop a rod at 300rwhp? Haha. Catch Can only went in 5 days ago haha. Might see if theres any kinks in the line pretty sure I made certain there wasn't Link to comment Share on other sites More sharing options...
Mrs Jeturbo Bob the Freaking Builder Donating Members 10,810 Member For: 15y 1m 21d Gender: Female Location: SA Posted 10/11/12 02:29 AM Share Posted 10/11/12 02:29 AM as far as I'm aware the only difference between the two is the n.a. has higher compression ... that's about it ...I thought bottom end was the same Link to comment Share on other sites More sharing options...
JK89 Member 56 Member For: 13y 10m 25d Posted 10/11/12 02:29 AM Author Share Posted 10/11/12 02:29 AM Where as a BA xr6t block could go 400-450hp?! Link to comment Share on other sites More sharing options...
Ralph Wiggum Moar Powar Babeh Lifetime Members 19,323 Member For: 19y 1m 11d Gender: Male Location: Perth Posted 10/11/12 02:39 AM Share Posted 10/11/12 02:39 AM block and bottom end = not same same, block is part of the bottom end. a ba turbo and non turbo BLOCK are the same, the crank is the same, the pistons and rods are different. Link to comment Share on other sites More sharing options...
Mrs Jeturbo Bob the Freaking Builder Donating Members 10,810 Member For: 15y 1m 21d Gender: Female Location: SA Posted 10/11/12 02:42 AM Share Posted 10/11/12 02:42 AM as I said I could be wrong but I thought the only difference was the compression and exhaust valves.... when ya chuck a turbo on em they top out at 280-300kws coz of the higher compression but I honestly thought all bottom ends were same til bf 06/06again I could be wrong Link to comment Share on other sites More sharing options...
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