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At the track today, I did the 1/4 mile in 15.1 sec. with the car loaded with full tank of gas (I weigh 230lbs). It's all stock '98 coupe with 49,000 miles. What are some areas I can look into? Change the air filter? Check/change the spark plugs? What else?
Thanks guys, I can see that somethings wrong. I live in El Paso, TX and was told that this stock Auto Vette belonged to some doctor before he traded it in w/49,000 mi.
What steps do I take to check out problem areas. I think it might be the fuel or air delivery - change filters? Sorry, I didn't get 60' times, but I seemed to do well there. The other cars would pass me after we got half way down the 1/4 mile course.
We still need to know what your 60" times were. Also, did you run the car in 3rd gear since it is an automatic? If you ran it in 4th, that is part of the problem. You also likely have the 2.73 rear end and not the optional 3.15 available for automatics.
If your 60' times are too high, this will also explain some of the low mph.
Do you have heavy aftermarket wheels on the car? Is there added weight such as subwoofer box? Full tank of gas also doesn't help.
The DA or outside temperature also is a factor. Elevation is also a factor but not likely in Texas.
2009 Cyber Gray ZR1 3ZR
2007 Black Z06 2LZ w/ factory chromies
2000 Mag Red Convertible
1998 Torch Red Coupe MN6
I used overdrive. Should I use 3rd all the way down?
I had the traction control on. Should I turn it off?
put the competitive driving mode on.....hold the T/C button down for 8 sec....while ur stopped.....and i leave it in drive....??.......it seems the be the fastest when i do that....ive never ran down a real track b4....go to a private closed road and practice....u will be able to feel the car urself...u dont need a clock telling u good luck
There has to be something wrong. I've left the traction control on while bracket racing and I still cut 2.1xx 60s in 85 degree heat and went 13.6 letting off. I also have 2.73 gears and was still stock when I went 12.92 @ 107. There might be something going on there with your car.
2004 CE Corvette - 1.410 60ft - 10.246 @ 133.39(ECS SC600, blower cam, tune, full exhaust, DRs, ECS built trans, 3000 stall, GTO skinnies, RSD bar)
2000 Trans Am WS6 - 11.190 @ 119.79-SOLD
It doesn't matter what his 60' times are, what gear he was in, what driving mode he was in, etc. If he's only trapping 91 mph he's WAY down on power. Like something on the order of 100 rwhp down. The car needs attention from a good Corvette mechanic. If it otherwise runs well (not rough or smoking) it has to be something relatively simple. That or somebody swapped in a L-48 while he wasn't looking!
I bet this guy is going to get the cheapest 100 rwhp boost on record.