Results 1 to 3 of 3
  1. #1

    Join Date
    Jul 2005
    Miami, fl

    Lost perf. when switched NGK 8's to IX27 iridium

    I ran a best of 74.9 with my Rive stage II at 8100rpm with NGK 8's(stock) and felt strong on top end.

    Then I switch to Iridium IX27 and ran 74.2 best and it did not felt good on top. It felt like dying on top end. (however engine started quickly and accelerated great).

    I will switch back to stock NGK plugs 8's.

    Any experience with this?

  2. #2
    HOSS's Avatar
    Join Date
    Aug 2005
    Kenner, LA
    With the sped difference as said,,,that could just be water temp. The 27`s are just for durability = longevity. Its not laughin gas. If plugs did that much I`d be the first one on em 30 years ago.

  3. #3

    Join Date
    Jul 2005
    Miami, fl
    got it !!!

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Noticed a change in fuel consumption when switched over to premix
    By DanielDucati in forum Polaris PWC Performance
    Replies: 2
    Last Post: 04-13-2012, 04:27 PM
  2. When is a good time to start mod's?!?!
    By seadooingfreak in forum 4-Tec Performance
    Replies: 5
    Last Post: 03-03-2008, 10:28 AM
  3. switching from closed loop to open loop!
    By beachboy66 in forum 4-Tec Performance
    Replies: 3
    Last Post: 04-16-2007, 01:04 AM
  4. Replies: 6
    Last Post: 09-20-2006, 09:00 AM
  5. When are the skegs going to be available?
    By Chezzy in forum 4-Tec Performance
    Replies: 22
    Last Post: 05-16-2006, 09:27 PM

Posting Permissions

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