Who here has hit top speed with their car? I've had her up to 110mph. What are we governed at?


lee

yup 108 is the top speed. if ur lucky you can hit 110 115 on a downhill.
there is a chip that removes the govenor.
however 3800 performance is comming out w/ a new pcm forour cars. as soon as they do im buying one. itll eliminate the top speed and gainabout 20 hp. plus its more mod friendly vs teh ase chip which doesnt like other mods like rockers/cai/exst/ throttlebody etc.
ill let ya know when they come out and how i like mine

I hit 111. My speed limiter is at 126 MPH. It was still pulling when I got out of it. That was when I only had exhaust on it.

Yup, I've hit 110mph going downhill. The computer starts retarding the timing at around ~105. Irritating when you realize that the car would push past 120 without it.

Top speed governers are dictated by the tire rating of the factory installed tires. As far as I know, this is a federal mandate (or was as of the late 90s) for cars and light trucks sold in the US.

Bonnes delivered with * rated tires (SE and SSE models primarily) were governed at 112mph. All SSEi models I have seen, including my own, were delivered with H rated Goodyears and were governed at 124mph. Mine is a 1995 that runs right up to the cut off at HUD indicated 122mph. close enuff...

Hope this clears up some of the confusion.

I go to 115 in my 97 SSEi. It hit 115 and then stopped, almost as if the needle hit the peg. I could feel it stop surging when it did. SAD

Not to be a bad egg, but dont expect any HP from the chip. Be more realistic and realize that 1) there will have no governor, 2) you will have to run at least 91 octane and 3) you will have better throttle response (No dead spots like the infamous 40-50 WOT death). Plus, you have to tell 3800 Performance if you want anything special done to your chip. And remember, the 3800 chip is based off Grand Prix'* that have the performance shift button, so if you dont have one (I dont think Bonneville'* do.. mine doesnt) you will have to add one to even use the chip settings. The only one that really truly does a chip for us is ASE chips (www.asechips.com) and I have spoken to them. Most people are told that they cannot do custom chips for their cars and its a standard program. However once I called them and since I live an hour away from them, they said they might be able to tune it more to my specs since they have a dyno there. Just food for thought on what the 3800 Performance chip really is. Read the fine print on the website.

Hi all. new member here

I own a 1964 bonneville - 389 4 barrel, 303hp@4600rpm, top speed 117mph (say the stats)

I hit about 110 the other day. Felt like it still had lots to go. Over 120 maybe? we shall see.

it just loves the 94 octane from chevron.
hehehe no computer chips here... just lots o fuel...

take care all
Fool

Well Fool,

I am sure your not one. I have some links you might like

http://members.aol.com/mykturk/bonnevil.html

For this link look near the bottom of the forum topics you will find pontiac info.
http://www.gmforums.com/

Nice CAr and welcome Fool.

TY

thanks for the links speedyguy

the new bonnie'* look awesome.

How old are bonneville'*? any ideas? I cant remember seeing any older than 64.

chat soon
fool