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  1. #776
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    Trucks and the stones they flick up, a nice big star to repair....

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  2. #777
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    This really is an amazing build! That rear parcel shelf full of electronics is something else!
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    Quote Originally Posted by Simon View Post
    This really is an amazing build! That rear parcel shelf full of electronics is something else!
    Can you imagine Brett trying to sleep with all this whirring over in his head
    cheers,

    John

  4. #779
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    I believe those whirring noises go away if you have a good red wine with dinner.

  5. #780
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    Quote Originally Posted by Bustamif View Post
    I believe those whirring noises go away if you have a good red wine with dinner.
    I think you really mean

    "I believe those whirring noises go away if you have a enough red wine with dinner"
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    Regards Col

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  6. #781
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    New slotted brake rotors for our cars on eBay? Wtf?

    https://www.ebay.com.au/itm/Front-RD...ery!2759!AU!-1




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    BR

    Building a race car is easy - building a race car that can be road registered is hard.

    For any custom fabrication call Precision One Off Engineering - Sydney 02 4587 8666

  7. #782
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    Never seen them before.....
    JohnW

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  8. #783
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    Quote Originally Posted by brettr View Post
    New slotted brake rotors for our cars on eBay? Wtf?

    https://www.ebay.com.au/itm/Front-RD...ery!2759!AU!-1




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    The photo does not match the description. Maybe I have missed something but they are only 7 mm thick solid discs with gas grooves machined in. Pretty much the same as early Formula Ford style.

  9. #784
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    Today's tasks, final an volt channel going in for an oil pressure sensor.

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    BR

    Building a race car is easy - building a race car that can be road registered is hard.

    For any custom fabrication call Precision One Off Engineering - Sydney 02 4587 8666

  10. #785
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    Assembly ready to go.

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    BR

    Building a race car is easy - building a race car that can be road registered is hard.

    For any custom fabrication call Precision One Off Engineering - Sydney 02 4587 8666

  11. #786
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    So I made some new supports to push the rear of the guard out to make the tires not so out from the actual car.

    But that pulls the guard forward more than an inch.

    So am modifying the rear of the cars body where the rear panel mounts.

    Hope it will all sit OK!

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    BR

    Building a race car is easy - building a race car that can be road registered is hard.

    For any custom fabrication call Precision One Off Engineering - Sydney 02 4587 8666

  12. #787
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    Finished, more curved, fits well.

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    BR

    Building a race car is easy - building a race car that can be road registered is hard.

    For any custom fabrication call Precision One Off Engineering - Sydney 02 4587 8666

  13. #788
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    A bit cleaner now with the 7" rims on.

    7" rear with A048's and 6" front makes the car handle quite nice.

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    BR

    Building a race car is easy - building a race car that can be road registered is hard.

    For any custom fabrication call Precision One Off Engineering - Sydney 02 4587 8666

  14. #789
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    Today's tasks.

    The solid state relay probably doesn't have the specs to keep up with the ecu which leads to a fuel pressure dip, it's momentary but enough to baulk the engine on full throttle.

    So am going to wire this aeromotive controller into the ecu's pwm output and see if I can make it work....

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    Building a race car is easy - building a race car that can be road registered is hard.

    For any custom fabrication call Precision One Off Engineering - Sydney 02 4587 8666

  15. #790
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    And also tappet clearances today. Pretty lazy 8000 k's since rebuild and I haven't had the rocker cover off.

    Still looks cool though an 807 with roller rockers!

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    BR

    Building a race car is easy - building a race car that can be road registered is hard.

    For any custom fabrication call Precision One Off Engineering - Sydney 02 4587 8666

  16. #791
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    Bit too late to get entered for this year, but fancy a trip to Geelong next year Brett? Be great to see your beast run a 1/4 mile.

    https://geelongrevival.com.au/
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  17. #792
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    Default oil pressure....

    That looks like a great day in geelong! Ive got a spare 5th gear set that i'm looking at having some new outer gear clusters made for about 18-20% rpm reduction.
    Just make the outers, machine out the original centres, freeze the centres, heat the outers, drop them on square then just a tiny bit of tig in a few places.

    I think Shoji was recently talking about oil pressure issues on an 807 so thought i would share my recent proper results.

    So it was good to get the modern oil pressure sensor in and wired / setup in the ecu.

    The electro-mechanical sender and old gauge didnt inspire confidence - it read quite low at hot idle, just off the bottom marker - i didnt even know if they were a matched pair....

    Good news is the proper readings now:
    Hot readings-
    23.9psi @ 812rpm (idle)
    Rises very quickly to:
    52.9psi @ 1892rpm
    And i was always taught 10psi for every 1000rpm:
    63.2psi @ 6273rpm

    Its a high volume oil pump rotor with the 5mm spacer i made with the standard pump body.

    I did modify the relief valve adding from memory about an 8mm spacer to increase the relief pressure.

    Also has mods to restrict the centre cam bearing flow and mods to various passages etc in the head.

    The high volume rotor must be the reason the pressure jumps very quick.

    And my oil pressure is almost instant. I run Penrite race synth full zinc no shear 15w/30 and 15w/50 mixed 50/50. I like that oil (not enough to put in my cooking though).

    Remote filter is upside down so can never run out and it has an adv obviously. Oil cooler itself is as low as possible so minimal syphon effect.

    All that being said i have seen an 807 that had not run for a few months and would not prime itself upon being started and running. The pressure never came up. I had to use the old outboard motor prime bulb into the galleries to get it to then start working.

    Attached is some ecu log screenshots - look in the parameters list and you can see the logged values for oil pressure. And yes it was a hot night so only 26 odd pounds of boost on the MAP.

    You can also see the AN4 GP temp - the gearbox runs at 60 deg - that's with an hour of vigorous tuning on it.

    ecu1.jpg
    ecu2.jpg
    ecu3.jpg
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    BR

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    For any custom fabrication call Precision One Off Engineering - Sydney 02 4587 8666

  18. #793
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    Quote Originally Posted by brettr View Post
    And also tappet clearances today. Pretty lazy 8000 k's since rebuild and I haven't had the rocker cover off.

    Still looks cool though an 807 with roller rockers!

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    Hi Brett. Those roller rockers would be easier to adjust than the standard ones? Would love to know more about them if you wouldn't mind. Off the shelf for our 807's?
    “Listen very carefully, I shall say this only once.” Cheers. John

  19. #794
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    Hi Shoji,

    There was only 2 sets ever made in a custom run so i cant help you there im sorry - but i can share the noise they aide in making while testing launch control setup in my private work car park.

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    BR

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    For any custom fabrication call Precision One Off Engineering - Sydney 02 4587 8666

  20. #795
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    Wow!
    Who has the second set?
    “Listen very carefully, I shall say this only once.” Cheers. John

  21. #796
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    Quote Originally Posted by Shoji View Post
    Wow!
    Who has the second set?
    Exactly the right question!! Nice looking top end, isn't it...
    JohnW

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  22. #797
    1000+ Posts Shoji's Avatar
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    If another run of these were to be made I would be in and I'm sure others would too.
    I don't like the fiddly original ones. It is a special tool for these or it's a pain with ordinary tools.
    Tappet Tool.jpg
    “Listen very carefully, I shall say this only once.” Cheers. John

  23. #798
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    I believe the supplier for those rockers is RAU Rocker Arms Unlimited Rocker Arms Unlimited

    I doubt they have any off the shelf as Brett says however you may be able to convince them to do a batch. They sure look good!

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