98hardtopZ

iTrader: (7)

i wasnt sure where to post this so if you feel as though it should belong somewhere else move it...but anyway, my 98 camaro has 125k miles on it. ive had it for the past 2k and its still running well and all ive had to do was replace thermostat (as soon as summer came around). i replaced all the fluids and have added a cutout, lid, kandn filter, ported and polished tb, ngk tr55 plugs and new wires 500 miles ago and now it runs like a top. i did seafoam right before the plug change and that helped out with economy as well. to my real question, how much horsepower do you lose over mileage like i have? and what e/t would i expect to run under ideal conditions if stock would run around a 13.6? i know you cant really tell unless its run but im completely in the dark about it and was just curious, i mean would it be as bad as a 14.5? its an a4. btw, since seafoam, new plugs and wires, the car has ran like a top, my mpg on average with mostly city driving is 22....coming back from fla when i bought the car was only 28hwy mpg, and now im getting around 30, so i know ive already helped some but is there anything else i need to do?

AL SS590 M6

iTrader: (1)

A friend just bought a 98 Formula with 120k miles on it. Threw a lid, Loudmouth, and 4.10s at it and just ran a 13.002 at 109+. Just like when they were new. Mileage doesn't matter unless it's worn. If it's been taken care of then it will litterally run like new,

SSwanner

iTrader: (128)

^^^ what he said. i made the first pass in mine with 100k on it, it made the last pass with a little over 140k on it i ran the ever loving **** out of it, sprayed the heck out of it, BUT i took a lot of care with it. when it came out the cylinders still had the cross-hatch pattern and everything looked pretty decent.

98hardtopZ

iTrader: (7)

ok good, that makes me feel better, my friend has a bone stock 1999 m6 ss with less that 10k on it that stays in a garage and he seldom takes it out. if we were to line them up and say he didnt miss a gear, who do you think would be on top?

Optimus_Prime

iTrader: (4)

If you get a stall you should beat him unless he is a super good driver.

98hardtopZ

iTrader: (7)

he rarely drives it.....one sunny day a month probably tops...