General GM ChatChat about all things GM (and related cars). Off-topic stuff should be in the Lounge, and all Model specific mechanical problems should be posted in the proper forum.

RPO coding is the factory standard and options package that your car has. You have a GX3 RPO for the tranny. Its higher geared (higher then the SSEi) thats why you rev higher then normal at higher speeds.

i have a 2000 SSEI and the top speed in
1st is 52 mph at 5500 rpm
2nd is 98 mph at 5800 rpm
3rd is 126 mph at 4750 rpm
4th ?
74 mph is 2000 rpm in my car.
my car has a stock pcm.

i have a 2000 SSEI and the top speed in
1st is 52 mph at 5500 rpm
2nd is 98 mph at 5800 rpm
3rd is 126 mph at 4750 rpm
4th ?
74 mph is 2000 rpm in my car.
my car has a stock pcm.

What mods do you have? 3rd gear is limited to 109 at WOT in a stock 00 PCM. 4th is limited to 128.