did you know that our cars as well as MANY others are speed limited to 97 MPH. they didn't tell me that when I bought it. I thought we lived in a country that didn't mandate your ability to do what ever you want (within reason). If I want to drive at 110 on an open freeway its my right to do so. I run the risk of getting a ticket and a very minor risk of getting in an accident....the key here is that I RUN those risks. I might just sell my yukon and buy an old suburban and completely rebuild it into what I had hoped the yukon would be.

 

Where are you getting that information from, Jet?

 

my evo can manage 170mph easily. 150 is when everything seem liked parked in the road

 

Jet: The top speed on your Yukie "tug" is based on the tire manufacturer's top speed rating. Sorry but the lowest rolling resistance SUV tire is not rated for 140 mph plus.

 

except that I do not have stock tires. secondly at 97 mph my fuel pump cuts off .... which has nothing to do with tires.

 

a highly placed contact at GM and the son of a good friend. I called him and said whats the deal. he told me its chip programming that is almost impossible to change.

 

I thought the escalade hybrid is limited to 110 mph. never tried but it is the same topspeed as all other makes like my honda(pilot) and toyota(LX570) unless you are talking about the german makes. but knowing the bridgestone dueler H/L alenzas are rated for 140mph is nice

 

I would be interested to see if you can get over 100

 

never sensed the limiter kicked-in when I was close 100mpg when I had a true emergency. maybe it is too much AFI sensed by your MAP(Volant). if so, then it needs a tune and at the same time you can have the limiter removed.

 

It's not the fuel pump it's major hybrid systems limiting the torque on the drive line. Throttle, fuel injectors, and electrical drive are all interconnected. The hybrid doesn't know about your better tires. Sorry.

The high speed roll off in power is ALL about stock tire rating. Of this fact I am absolutely certain.

Check with KC135R if you don't believe me.

We can thank the TREAD act for this and the lawyers.