top speed

45

Asked by Aug 31, 2009 at 03:15 PM about the 1999 Pontiac Sunfire

Question type: Maintenance & Repair

my 99 sunfire gt accelerates prety strong up to 180 then the speedo tops out and the car keeps accelerating i kinda lost my nerve at that point and took my foot off the floor. but i'm fairly certain the previous owner put high comp pistons in it.

6 Answers

35

damn 180 in a sunfire holy shit

15

Sounds like you are using the metric system.. I would have to guess that it is 180 KPH and you should be hitting the governor somewhere around there but you most likely have it tuned out of your PCM. What mods do you have on the car? Intake, exhaust, etc?

50

Stock ecm will shut off fuel at 105 mph.

75

ive had my sunfire top out at 220 k an hour but the govenor has been shut off...

My 2001 Sunfires speedo goes up to 110mph. I've had the needle bouncing off the little peg that stops the needle from doing clock like circles so I had to have been doing 125-130mph.....no ECM cut my fuel off and mine is bone stock just like Pontiac built in '01.

i had mine up to 110 a completely stock 1998 sunfire in the usa

Your Answer

Sunfire

Looking for a Used Sunfire in your area?

CarGurus has 312 nationwide Sunfire listings starting at $2,100.

ZIP:

Pontiac Sunfire Experts

  • #1
    John Saffrahn
    Reputation
    2,790
  • #2
    Joeyadams
    Reputation
    1,340
  • #3
    Warren0007
    Reputation
    1,250
View All

Related Models For Sale

Used Pontiac Firebird
9 Great Deals out of 781 listings starting at $2,500
Used Chevrolet Cavalier
914 listings starting at $1,250
Used Pontiac Grand Prix
30 Great Deals out of 2,747 listings starting at $1,500
Used Mitsubishi Eclipse
24 Great Deals out of 1,193 listings starting at $1,795
Used Ford Mustang
710 Great Deals out of 38,301 listings starting at $895
Used Pontiac Grand Am
1,050 listings starting at $1,899
Used Chevrolet Camaro
410 Great Deals out of 30,658 listings starting at $3,550
Used Ford Focus
734 Great Deals out of 52,816 listings starting at $999
Used Toyota Corolla
911 Great Deals out of 57,317 listings starting at $1,488

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.