Results 1 to 6 of 6

Thread: Maybe its not my clutch...?

  1. #1
    Forum User verified Feedback Score 0
    Join Date
    Sep 2010
    Owner Since

    Posts
    108
    Thanks
    4
    Thanked 0 Times in 0 Posts

    Maybe its not my clutch...?

    So, initially I thought my clutch was slipping. Under heavy loads the car was often studdering. Then today I was reading on this site that the studdering could be caused by spark plug blow out or a boost leak.

    I think that I have eliminated the clutch slipping idea. I got out on the highway for my 20 minute drive home and did a series of pulls from 40 mph in 6th gear at WOT to 70 mph. Not once did it studder, it acceled smoothly the entire time. Then when I pulled from 3rd and 4th it did studder but when it was studdering I didn't notice an increase in rpms at all. I am mostly stock with AEM tru boost, borla exhaust, tien s, and k&n FIPK. The car does have 144k on the clock and did have its 120k maintenance.

    What do you guys think it might be?

    Thanks in advance, John

  2. #2
    Member verified Feedback Score 0 DocWalt's Avatar
    Join Date
    Sep 2010
    Owner Since
    Oct '08 - Oct '10

    Location
    Royersford, PA
    Posts
    3,841
    Blog Entries
    1
    Thanks
    1,070
    Thanked 442 Times in 317 Posts
    Does the car feel like it's running into a wall, or is it just stumbling? If it's a harsh stutter, check you knock counts, and try lowering your boost. If it's soft, check for boost leaks, and check the gap on your plugs. Should be about .032 to .04ish for your mods.
    R135
    ╚╬╬╝
    - 24

  3. #3
    Forum User verified Feedback Score 0
    Join Date
    Sep 2010
    Owner Since

    Posts
    108
    Thanks
    4
    Thanked 0 Times in 0 Posts
    Just stumbling, I am only boosting 6 lbs right now and it never holds. I am sure I have a boost leak somewhere. Sorry forgot to mention its a 97 vr4.

  4. #4
    Member verified Feedback Score 0 DocWalt's Avatar
    Join Date
    Sep 2010
    Owner Since
    Oct '08 - Oct '10

    Location
    Royersford, PA
    Posts
    3,841
    Blog Entries
    1
    Thanks
    1,070
    Thanked 442 Times in 317 Posts
    Sounds like a boost leak then

  5. #5
    Forum User verified Feedback Score 0
    Join Date
    Sep 2010
    Owner Since

    Posts
    108
    Thanks
    4
    Thanked 0 Times in 0 Posts
    Where does most common boost leaks occur?

  6. #6
    Forum User verified Feedback Score 0
    Join Date
    Sep 2010
    Owner Since

    Posts
    108
    Thanks
    4
    Thanked 0 Times in 0 Posts
    I don't know when the last time the spark plugs/wires where replaced ( I have only owned the car for a month). So just to eliminate the spark plug blow-out theory I was wondering if 3sx's tune up kit is a good deal? It seems to be, for $100 i can get 3SX Custom MSD Plug Wires, Set of 6 NGK Copper BKR7E-11 Spark Plugs, and OEM Upper Intake Manifold / Plenum Gasket OEM Throttle Body Gasket. Is that decent for a bpu setup?

    Also, what is the best way to perform a boost leak test? sorry i have not researched anything on how to yet. Any information is appreciated.

    Thanks, John

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
The 3000GT/Stealth/GTO Web History Project
3000gt.com
3000GT / Stealth International WWWboard Archive
Jim's (RED3KGT) Reststop
3000GT/Stealth/GTO Information and Resources
Team 3S
3000GT / Stealth / GTO Information
daveblack.net
3000GT/Stealth/GTO Clubs and Groups
Michigan 3S
MInnesota 3S
Wisconsin 3S
Iowa, Nebraska, Kansas 3S
North California 3000GT/Stealth
United Society of 3S Owners
3000GT/Stealth/GTO Forums
3000GT/Stealth International
3000GT/Stealth/GTO Event Pages
3S National Gathering
East Coast Gathering
Upper Mid-West Gathering
Blue Ridge Gathering