Page 100 of 105 FirstFirst ... 50909899100101102 ... LastLast
Results 991 to 1,000 of 1050

Thread: My XE nova on throttle bodies (Project 275+bhp)

  1. #991
    Senior User
    Join Date
    May 2004
    Location
    Nr Cambridge
    Posts
    2,594
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Default

    Can't argue with that then, I am quite sure others don't use 3" systems though but if they work so be it.

    All that said there must be a big problem somewhere on it to of lost that much power

  2. #992
    Senior User Club Member
    Join Date
    Apr 2008
    Location
    Coventry
    Posts
    11,892
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Default

    Quote Originally Posted by Gareth_C View Post
    He also said the power Los could be down to the fact of it being fitted into the car due to air restrictions etc but also maybe rs roller read lower Im not sure but with a torque figure Rhys 7ft lb up from the engine dyno session then tere must be something right in it. Issues will be fixed then I'll take it from there
    How was the dyno calibrated for the run, any ideas? as if the torque is correct, but BHP massively down it points towards the RPM calibration being out, unless it's seeing a large enough air restriction to strangle the flow for top end, but that's fairly unlikely.

  3. #993
    Senior User
    Join Date
    Feb 2010
    Location
    durham
    Posts
    1,529
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Default

    Quote Originally Posted by MK999 View Post
    How was the dyno calibrated for the run, any ideas? as if the torque is correct, but BHP massively down it points towards the RPM calibration being out, unless it's seeing a large enough air restriction to strangle the flow for top end, but that's fairly unlikely.
    Tbh I'm not sure how the rollers were done the torque was done by the injector cycle. There shouldn't be any restriction the bulkhead is bit is cut out and the bonnet was completly off.
    The only possible restriction is the air filter but its massive

  4. #994
    Senior User Club Member
    Join Date
    Apr 2008
    Location
    Coventry
    Posts
    11,892
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Default

    Is there a pic of your bay with filter etc in here somewhere? I've not seen one but I tend to be a bit erratic on here the last year, I'll trawl through if there is one Main tell tale on your dyno printout is if the redline is a bit early, it's probably been calibrated a bit out.

    Power = Torque x RPM, so if it thinks you're revving a bit slower than you are, the torque will be spot on, but it will calc your power a bit down on what it actually is.

  5. #995
    Senior User
    Join Date
    Feb 2010
    Location
    durham
    Posts
    1,529
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Default

    Quote Originally Posted by MK999 View Post
    Is there a pic of your bay with filter etc in here somewhere? I've not seen one but I tend to be a bit erratic on here the last year, I'll trawl through if there is one Main tell tale on your dyno printout is if the redline is a bit early, it's probably been calibrated a bit out.

    Power = Torque x RPM, so if it thinks you're revving a bit slower than you are, the torque will be spot on, but it will calc your power a bit down on what it actually is.
    Pics of filter sorry if there a bit crap ive just braved the garage to take them.



    Also pics of the power graph sorry again if its a crap pic ill try and scan it if people dont get the idea

    Also I must say a HUGE thanks to Dave at PEC (performance engine components) i phoned him and told him what id done over the weekend and he gave me a really good discount on another set of rods, its nice to see some companys will still help you when your luck is ****.
    So these came in the post

  6. #996
    Senior User Iain's Avatar
    Join Date
    Sep 2004
    Location
    East Midlands
    Posts
    13,605
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Default

    I'm ringing him tomorrow with a made up story, discount ftw Nice work cracking on with the repairs

  7. #997
    Senior User
    Join Date
    Feb 2010
    Location
    durham
    Posts
    1,529
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Default

    Quote Originally Posted by Iain View Post
    I'm ringing him tomorrow with a made up story, discount ftw Nice work cracking on with the repairs
    mate im trying to see the guy i bought the hose off for more, better hose for free

  8. #998
    Senior User Club Member
    Join Date
    Apr 2008
    Location
    Coventry
    Posts
    11,892
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Default

    Shouldn't have too much issue with your filter setup, used by plenty of people. It may well be pulling a lot of hot air straight off the exhaust though, that will definitely drop the power a surprising amount.

    On the power graph, any idea where your usual redline is? it doesn't seem quite as much as 20-30% out though tbh.

  9. #999
    Senior User
    Join Date
    Feb 2010
    Location
    durham
    Posts
    1,529
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Default

    Quote Originally Posted by MK999 View Post
    Shouldn't have too much issue with your filter setup, used by plenty of people. It may well be pulling a lot of hot air straight off the exhaust though, that will definitely drop the power a surprising amount.

    On the power graph, any idea where your usual redline is? it doesn't seem quite as much as 20-30% out though tbh.
    The redline was originally set at 8500rpm and I don't think it was changed

  10. #1000
    Senior User Club Member
    Join Date
    Apr 2008
    Location
    Coventry
    Posts
    11,892
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Default

    Quote Originally Posted by Gareth_C View Post
    The redline was originally set at 8500rpm and I don't think it was changed
    Looks like it is calibrated 500RPM short then, you can add about 6% for free Call it 246

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •