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OzFalcon
1. OzFalcon News
  
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2. New Member Introductions
  
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General
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Merlin's Metalcraft Emporium
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  happy tappy...
  
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2. Paint Tech
  
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2. V8 Tech
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3. Forced Induction Tech
  
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4. Exhaust
  
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5. Body and Exterior
  
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6. Transmission and Differential
  
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7. Steering, Suspension and Brakes
  
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8. Cooling System
  
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9. Interior and Car Audio
  
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10. Auto Electrics
  
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11. LPG Tech
  
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12. Cortys and Eskys
  
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13. Effies
  
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14. Wheels and Tyres
  
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Projects
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2. Member Builds
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Trash 'n' Treasure
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2. The Wreckers
  
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3. Non Car Related Sales
  
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4. Wanted
  
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EA to FG Q&A or general info
1. AU HEY YOU Q&A and general info series 1,2 and 3
  
  general thread for all questions and answers, if popular will be expanded further.
  
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Topics
- 7
  
  AU 4 litre, will they safely bore out to 60 thou and is it worth it?
  
  By Stumps
  Started Tuesday at 07:32 PM
- 220
  
  Thom's 4.0l thread
  
  By Thom
  Started June 17, 2013
- 7
  
  Negative CC dish piston formula solution
  
  By 408WPN
  Started October 12
- 3
  
  XG miss on 2,4, and 6
  
  By Fingers
  Started October 12
- 1
  
  How can I find the correct colour?
  
  By IVC434
  Started Tuesday at 02:12 PM
Posts
- AU 4 litre, will they safely bore out to 60 thou and is it worth it?
  
  By Stumps · Posted 3 hours ago
  
  Is the AU tickford head any good flow wise. I checked out my XG motor, it has a 94AB head which seems to be one of the better non tickford e series heads.
- AU 4 litre, will they safely bore out to 60 thou and is it worth it?
  
  By Fingers · Posted 8 hours ago
  
  From what I am aware, the only difference between the XR6 head and the VCT head is the VCT. As far as the BArra ECU, pretty sure you would be better off with individual coils.
- Thom's 4.0l thread
  
  By Stumps · Posted 23 hours ago
  
  Apologies for raising an old thread, but it's not covered here. Is the AU XR6 VCT topend worth playing with as far as the head goes? Would the VCT itself work with the EA cam, I'd assume if it did, the VCT when it kicks in would make the profile a bit more aggressive again compared to using the cam in non VCT cars. Sorry for the dumb questions there seems to be limited info on hotting up an NA VCT engine outside of locking the cam and using the non VCT cams.
- AU 4 litre, will they safely bore out to 60 thou and is it worth it?
  
  By Stumps · Posted Friday at 09:29 AM
  
  Is the XR6 VCT topend worth playing with as far as the head goes? or should I be looking for a different head like the EF XR6? I have the correct EEC to suit the VCT with a 5 speed. I was thinking of running a Barra ECU for extra tunability would it be worth going to an FG coil pack arrangement? I have what I assume is the stock XG engine as well with everything needed to run that so swapping parts is doable for sure.
- AU 4 litre, will they safely bore out to 60 thou and is it worth it?
  
  By 2redrovers · Posted Friday at 06:13 AM
  
  Thom's thread is the business when it comes to those motors. Might even find the answer to your first question in there somewhere too.
- Negative CC dish piston formula solution
  
  By bear351c · Posted Friday at 05:27 AM
  
  Aaaah yes the plenum. The bane of all XA-XF Falcons..... Well, that will still go hard, and sound sweeeeet.!
- Negative CC dish piston formula solution
  
  By 408WPN · Posted Thursday at 09:13 PM
  
  Thanx,14x8 on this one 😁👍
- AU 4 litre, will they safely bore out to 60 thou and is it worth it?
  
  By Stumps · Posted Thursday at 07:43 PM
  
  http://www.ozfalcon.com.au/index.php?/topic/1233-thoms-40l-thread/& Been reading this thread, very interesting read indeed. Seems all I need is an EF XR6 head to build thoms combo, got all the rest of the parts, pretty sure the XG cam is the 91DA cam spoken about in the thread. Would come pretty close to getting the XB into that magical 13 seconds bracket I'm chasing.
- AU 4 litre, will they safely bore out to 60 thou and is it worth it?
  
  By Tazvan · Posted Thursday at 01:36 AM
  
  I personally would rather stay as close to a standard bore as possible. It also depends on what you are trying to do, such as, are you going for all out performance or a mild combination... also are you thinking cast, hypereutectic, or forged piston's? There is a lot to consider when building engines... e.g. taking a block out to what is considered maximum, can bring on other issues, like the cooling system may need to be upgraded and the possibility of split bores, and boring out to max also reduces the amount of area for the head gasket to seal against, as the distance between bores is less... Some 265 Hemi 6 blocks can be bored to 90 thou, taking it from 3.91" to 4.00", which all of a sudden opens up a more extensive range of possibilities... Sorry I don't have a direct answer to your question, just some food for thought...👍
- Negative CC dish piston formula solution
  
  By Tazvan · Posted Thursday at 01:01 AM
  
  Awesome wheels! I have a set of 14x8's, but yours look more like 9's at least. Are they 14's or 15's?

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