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  1. #46
    been here .......too long Smitty2's Avatar
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    Quote Originally Posted by Bill355 View Post
    Are you talking about a little black cylinder with a lid on top plumbed into the top radiator hose? (cant see the pic) If so, it's a filter.

    Tefba Radiator Filter
    Brocks didnt..at least not in this pic


    but i know what you mean, I have run one since this engine went in

    not only do they trap crap...but they allow you to bleed the air out quickly (if inserted at the highest point of the top hose)
    and
    believe it or not I have seen them in the BOTTOM radiator hose next to the radiator inlet !
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  2. #47
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    x2

    They work.

    (Bottom hose hey!? That's different)

  3. #48
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    Quote Originally Posted by HQ308Ute View Post
    one little thing i'll throw in with the catch can as well is that those oily fumes the can is catching actually lower your air/fuel mixture octane a few points.. considering we're all grasping for as much octane as possible its a good idea to run a can in any case.
    Ke?

    Please explain . . .

    Do you mean lower the octane level of the fuel - or really do you mean they pollute the air/fuel mix from the carb with crappy fumes?

  4. #49
    been here .......too long Smitty2's Avatar
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    Quote Originally Posted by Bill355 View Post
    Ke?

    Please explain . . .

    Do you mean lower the octane level of the fuel - or really do you mean they pollute the air/fuel mix from the carb with crappy fumes?
    I read that...and took it to mean using a PCV valve setup is a no-no on a performance/race vehicle
    as the oily fumes mix with the fresh air/fuel mix in the inlet manifold and affect it
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  5. #50
    Do you ever leave? cava454's Avatar
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    ^^ I have also heard the same thig about the oil vapor effecting the octane rating of the fuel when mixed together.

    Smitty: I'm about to do the rear coolant cross over like yours however I'm coming from the thermostats area as I brought a spacer with two -6 ports and willbe running a -6 line to each side. It would still work the same yeah. I've got an electric water pump so I cant go off the nipples.

  6. #51
    Do you ever leave? HQ308Ute's Avatar
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    Quote Originally Posted by Smitty2 View Post
    I read that...and took it to mean using a PCV valve setup is a no-no on a performance/race vehicle
    as the oily fumes mix with the fresh air/fuel mix in the inlet manifold and affect it
    yeah thats what i mean

  7. #52
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    Quote Originally Posted by immortality View Post
    ....something else I spotted in a pic of the engine bay of the last of the "big banger" HDT Commodores, it looked like they had some sort of swirl pot plumbed into the top coolant hose going from the radiator to thermostat housing. Any body have any idea what that was for?
    What I think immortality is referring to is the Bennett coolant system that had a coolant swirlpot in the top hose.

  8. #53
    been here .......too long Smitty2's Avatar
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    Quote Originally Posted by struggler View Post
    What I think immortality is referring to is the Bennett coolant system that had a coolant swirlpot in the top hose.
    a Google shows nothing except this from here - yep Aussie V8 !

    http://www.aussiev8.com.au/conversio...-system-2.html

    and the GMH Torana mob who said -

    John Bennet. he is the guy how rebuilds and flow tests water pumps and invented the Echotherm external bypass system which consists of a thermostate placed in the bottom hose and associated hoses and fittings which is said to redirect water better thru the motor to remove heat from the heads and place it around the bores to better distribute heat in the engine for more consistant heating around the bores leading to more equall combustion.
    last known contacts were;
    Echotrans 9338 4344 (10 years ago) and
    Echotherm (03) 9338 5311 (2 years ago).
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  9. #54
    Part of the furniture mid11s's Avatar
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    Bought a mini tubbed grey lj from melbourne back in 97 , had the bennet system fitted .
    All i remember is it had an anodized alloy block on the bottom radiator hose and the top hose went into another tank before going into the manifold .. Seems to have worked though .

  10. #55
    Do you ever leave? immortality's Avatar
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    I'll have to dig out the old magazine and scan the pic. It was a long time ago.

  11. #56
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    Quote Originally Posted by Gunn VK View Post
    Thanks for the info TK, Very helpful! If i want to keep the car Road worthy will i run into troubles with using these heads. Not 100% sure yet but may be a possibility that i keep it on the road.

    How much would i be looking at to get that work done to the heads? The E85 option ill have a think about, sounds like a good idea!

    Ill keep an eye out on ebay etc for some 1 5/8 headers, currently have the efi tri Y's so ill look out for another set for early heads.

    Once again thanks for your help.
    Bumping this question back up.

  12. #57
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    Sorry, give me a call on 08 83769540 during working hours - but not today, kinda busy right now.

  13. #58
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    Ok mate I'll see how I go, been busy at work also. Not really to fussed if I can't find out the costs. Been looking for hq heads not that easy to find. Will there be much performance difference running VK black heads? Obviously they will be better than VN's. Also the possibility of getting it rego'd.

  14. #59
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    You can't tell the difference between red/blue/black heads externally - no cop would know.
    I can get plenty of HQ heads no problem.
    VK black heads would need the exhaust crossover/heat riser port blocked - PITA but doable.

  15. #60
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    So how come the exhaust crossover/ heat riser port needs to be disregarded? Is there performance gains? I am aware they look the same but will they to a mechanic doing a road worthy? Sorry about the questions, this is all new to me.

    Cheers

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