Jump to content

Wilk

Members
 View Profile  See their activity

  • Content Count

    4

  • Joined

  • Last visited

Posts posted by Wilk

  1. Posted






    I think your combo will get pretty close to that, going by that cam spec. They're just an engine, they respond like any other engine does if not doing a full-tilt build. Only then would you need specific knowledge on how to squeeze the absolute most out of it.

    They're nice and simple with not many traps to fall into. On a mid-level build such as this, you have good enough bits to have a very sweet engine.

    I'd say that the biggest thing holding them back is induction, particularly fuel distribution to cylinders 1 and 6. They are much further away from the carby so at higher rpm, such as above 4500, you start to feel a harshness in it that is basically those cylinders starving for mixture every time it's their turn with the middle ones getting all they want. I noticed this on my Corty when it had a Redline 2 barrel manifold. The end runners each had a nasty sharp turn into the port, which I don't think was a great thing.

    The AussieSpeed has oversized end runners that are also more gently curved to try and compensate for this, the result being a much smoother top-end. My old man's EFI XF did not have such harshness up top, owing to the EFI manifold having much better distribution.

    Sent from my CPH1920 using Tapatalk

    I'd be pretty happy with that sort of power given I haven't spent bucket loads on it!

    I read that the manifolds weren't the best on a few posts on here. Problem is we have to import everything as there are no outlets in NZ for anything to do with the Xflows. We do get the V8 stuff, so can get clevo rockers and windsor ARP bolts for the rods etc but it's almost cheaper to get them from you guys over the ditch!

    I'm hoping the Aussie Speed guys export to us so I can grab a 4 barrel manifold...I've never seen anyone over here with one!



    Sent from my SM-A715F using Tapatalk

    gerg reacted to this

  2. Posted

    From what I've read and seen in this forums, they're good for much more!

    I'm hoping for around 140-150rwhp, but really don't know. Hoping you guys would be able to give me a bit of an idea based on your experience.

    I will go 4 barrel once I've got it running and enjoyed it over the Xmas break.

    Sent from my SM-A715F using Tapatalk

    gerg reacted to this

  3. Posted

    Hi Gerg

    Thanks for that.

    Engine should be a bit of fun, mainly did it up just to reacquaint myself with them and build one up myself. Probably haven't done everything I should have, but is a bit of an experiment and looking to build another in the near future and tossing up between a strong N/A or Turbo.

    As for carby, 350 holley on a Cain manifold. We don't get a lot of aftermarket gear over here, so was looking at Aussie Speed 4 barrel manifold and I have a 465 vac sec carb lying around...thought this might be better once I get it running? Also, ignition is hall effect with msd 6al programmable unit.

    A few pics of the head I mucked around with.2fdfc0a41c9f9abba731d3d3e58f7e86.jpg07085190e3b2c178d9a9aa03f9543aae.jpg342a7730d0bf6c1d53d3b79617449d28.jpg

    Sent from my SM-A715F using Tapatalk

    gerg reacted to this

  4. Posted

    Hi All,

     

    Long time lurker, first time poster!

     

    Firstly, this is one of the best forums around for info on the X Series Falcons for the guys across the ditch in NZ.

     

    I've got myself an XF after nearly 20 years of not owning one...marriage, kids and divorces certainly put pay to having any sort of toys!

     

    Anyway, thought i'd ask on here as this is the closest thread I could find relating to my question.

     

    I have rebuilt the engine, specs below:

    - 84da block std bore

    - Std 28cc (odd) pistions with Std rods

    - 218 -218 @50', 110 LSA, 495 lift  HYD

    - C2 head - cleaned up, smoothed the intake and exhaust - polished the intake. Cleaned up the knob in the bowl to ease pinging. 

    - 9.5:1 comp

    - Yella Terra Street Terra roller rockers

    - Modifying the water pump to go electric

    - Baffeling the sump by cutting an EF one apart

    - T5 that will eventually be mated up to an EF 3.45:1 diff

     

    Now for the questions:

    - Do I need a thermostat if going electric water pump?

     

    - I want to modify the PS to the Astra pump and alternator setup - Can an EF 96DA harmonic balancer be used on the 84DA crank? I'm hoping yes so that I can use the astra alternator with the serpintine belt and do away with the vee. My theory is that the I6's are all neutral balance, so the balancer, provided that it is neutral balance (96DA assumed to be neutral), should be fine given that the snout size etc is exactly the same. From what I can tell there are 2 differances - the height of the snout compared to the 84DA balancer and the weight is approx 650grams heavier.

     

    If I'm crazy and barking up the wrong tree, please tell me! 

     

    Cheers guys

     

×