[8UWAV6]

What is you gas milage in you GN. What size injectors and turbo? I have never gauged my milage as I play around too much and go WOT to much.

 

[Bill]

In the city with very little highway driving I get about 15mpg

CPT62 turbo, 72# injectors, double pumper, ported heads, 218/218 cam etc etc
I'm running a little rich too. With a different chip and some highway driving I bet I could squeeze 18-20mpg easily

 

[Rob]

My GN would get 24mpg as the best. That was with an old Kenne Bell chip from the late 80's. Sold the car in '92.

My TTA got a best of 30mpg with the stock injectors and a Thrasher92. With 50# injectors and a hacked Thrasher92, I got a best of 29mpg. Not too shabby after busting off mid 11 sec. timeslips

 

[REDT]

17city and 25 Highway stock according to my window sticker. I haven't actually calculated since the 60lb. injectors and GT3255 turbo.

 

[Gary Wells]

Here's 25 mpg highway, post # 10

http://www.turbobuick.com/forums/showthread.php?t=163975

 

[8UWAV6]

Got my car running again and I am only getting about 15MPG. I let the car warm up for a long time 10-15 minutes and my BLM's ay idle are real high so this probably is the reason why mileage sucks.

 

[REDT]

High BLM's at idle? Join the club. Does the car have an off idle hesitiation and idle rough?

 

[8UWAV6]

BLM's have settled down, 2500 miles on this rebuild. Everything is going great. I am getting about 14MPG with a heavy foot. Idles rough but does not hesitate.