Search:

Type: Posts; User: woollymoof

Page 1 of 5 1 2 3 4

Search: Search took 0.01 seconds.

  1. Replies
    21
    Views
    3,599

    We spoke to one of the Dyno Dynamics guys earlier...

    We spoke to one of the Dyno Dynamics guys earlier in the year, when we were sorting out our dyno, about a shoot out at the comp. He said it costs DD about AUD$100k to do Summer Nats and although it...
  2. We cut the sump volume by 600ml and still filled...

    We cut the sump volume by 600ml and still filled it with 3.5L of oil.

    We noticed we were only get surge on right hand turns - oil goes to the left, the pick up is on the right of the engine/sump. ...
  3. Replies
    5
    Views
    828

    the F4i engine manual has the following specs at...

    the F4i engine manual has the following specs at 1mm (0.04") lift
    Intake
    Open: 22 degrees BTDC
    Close: 43 degrees ABDC
    Exhaust
    Open: 38 degrees BBDC
    Close: 7 ATDC

    We've measured the lift as...
  4. Replies
    35
    Views
    3,944

    <BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR> Now if someone out there can show me why it at all makes more sense to draw through all the runners at once please do. ...
  5. Replies
    35
    Views
    3,944

    True, you wouldn't have all four cylinders on the...

    True, you wouldn't have all four cylinders on the intake stroke at the same time, but even if you did the flow bench would no way near represent the flow in the plenum. Pulling on all four runners...
  6. Replies
    35
    Views
    3,944

    I've looked for other posts on this but can't...

    I've looked for other posts on this but can't find any.

    What sort of numbers are people getting on the flowbench for their intake, for one runner and all four?

    Our bench can't go above 17"H2O,...
  7. Replies
    35
    Views
    3,944

    I've looked for other posts on this but can't...

    I've looked for other posts on this but can't find any.

    What sort of numbers are people getting on the flowbench for their intake, for one runner and all four?

    Our bench can't go above 17"H2O,...
  8. Replies
    15
    Views
    1,956

    Big Bird, When do you need to know by?

    Big Bird,

    When do you need to know by?
  9. Hi all, Does anyone know any figures of the...

    Hi all,

    Does anyone know any figures of the percentage of oil from the pump that goes through the presssure relief valve, when fully open?
  10. Replies
    11
    Views
    1,280

    Try measuring at 1mm lift or 50thou. It's a...

    Try measuring at 1mm lift or 50thou. It's a common way to determine duration. If the largest angle in your data is 360degrees, double the duration figure you get and that will give you duration in...
  11. Replies
    12
    Views
    1,870

    Younger students can do research and design...

    Younger students can do research and design proposals on parts of the car for one of their design subjects in third year. That doesn't mean what ever they do gets on the car, it probably won't the...
  12. Replies
    8
    Views
    969

    We've tested it in the engine. Flow varies...

    We've tested it in the engine. Flow varies linearly from 0.17kg/s at 3100 RPM to 0.69kg/s at 9700 RPM
  13. Replies
    8
    Views
    969

    We have an after market thermostat (not running...

    We have an after market thermostat (not running it though), opens a couple of degrees C earlier. But unless you have an efficient enough cooling system to bring the temperature down below that of...
  14. Replies
    4
    Views
    723

    I'd be careful just running the diffuser in the...

    I'd be careful just running the diffuser in the analysis and assuming the results will correlate with the whole intake. It depends on your intake but I have seen vastly different flow patterns...
  15. Replies
    4
    Views
    830

    It was the intake cam. That's enough work as it...

    It was the intake cam. That's enough work as it is. You can probably find gains in adjusting the exhaust.
  16. Replies
    11
    Views
    1,592

    Big G, If you mean blip throttle (not ignition...

    Big G,

    If you mean blip throttle (not ignition coil) then Suddenlee is right, its illegal. If you mean cut the ignition on up changes, you can do this with a signal from your paddle to your ECU,...
  17. We made a 90 degree elbow with appropriate stops...

    We made a 90 degree elbow with appropriate stops to prevent the valve from popping out or moving under acceleration.

    You could possibly cut the pipe, I can't advise on it though and you would have...
  18. Replies
    1
    Views
    1,053

    Hi All, The cost report says that only end...

    Hi All,

    The cost report says that only end items should be listed in the BOM.

    Appendix A-3 lists how the systems and components should be organised in the cost report. But these two do not...
  19. Replies
    1
    Views
    1,053

    Hi All, The cost report says that only end...

    Hi All,

    The cost report says that only end items should be listed in the BOM.

    Appendix A-3 lists how the systems and components should be organised in the cost report. But these two do not...
  20. Replies
    4
    Views
    830

    We've done duration and lift. Last year was a...

    We've done duration and lift. Last year was a reduction in duration and increase in lift, doing something similar this year. We designed the basic dimensions, ie lift and duration, on Virtual 4...
  21. Replies
    13
    Views
    1,765

    Still got problems. Would you have to...

    Still got problems.

    Would you have to replace the clutch disks when replacing the oil, even if they look ok, because they'd been soaked in the dodgy oil?
  22. Replies
    13
    Views
    1,765

    Thanks guys, We did a clutch a couple of...

    Thanks guys,

    We did a clutch a couple of months ago with maybe 10 hours of dyno work, the engine was from a wrecked bike. I didn't realise what was happening straight away so when we took the...
  23. Replies
    13
    Views
    1,765

    Has anyone ever had trouble with the clutches in...

    Has anyone ever had trouble with the clutches in their engines slipping on the dyno?

    If so, what did you do to prevent it?
  24. Replies
    13
    Views
    1,765

    Has anyone ever had trouble with the clutches in...

    Has anyone ever had trouble with the clutches in their engines slipping on the dyno?

    If so, what did you do to prevent it?
  25. Replies
    1
    Views
    549

    Hi all, Just curious as to what sort of ramp...

    Hi all,

    Just curious as to what sort of ramp up rates you're using when doing power runs on the dyno?
Results 1 to 25 of 120
Page 1 of 5 1 2 3 4