Ok first commute. Success!!! The car is totaly different on the highway. It's tons quieter. Geompg said a 25% drop in rpm for him. I'll differ to him as I have no tach. It feels great. According to what I have come up with so far 3.51 is what it should be from the tire swap. In 10 miles of watching mileage post I lost 1 mile or a tenth per mile. CoyoteX if you have lots of hills in your area, don't do this. The last couple of miles to GM proving grnds. Is hilly and 4th is now top gear on a couple. 3rd gear by 3 car lengths is gone too. Only problem was the drain wash in the parking lot I had never felt before!!!
The Celta this was modeled after has a 4.86. They regulary see 4 people in the veh. So there is quite a difference between 3.51 and 4.86 works for me.
Spring comp. is on order so hope to cut the frt. springs this weekend. Now to wait a few tanks to see the real change. With lots of driving I've found you need to prove changes for awhile, at least I do. I tend to catch myself driving to optimize the change. THATS CHEATING
Sorry - some of the confusion is in the title of the thread, which I edited to try to clarify. The "raising" was the result of adding his larger wheels/tires. Now he's trying to erase that height gain. I'll see if I can fix the title (again).
I bought 6 of the same model tire, in one day, last time I bought tires. I also did a size change on my Daewoo Leganza (sold to friend.) Stock size was 205/60 15 but I got 195/65/15 Kumho Power Star 758 tires. They are Taller and narrower. They seem to make the back end of the car lean more on turns, but it feels solid at the same time. Hard to describe, but they drive great.