mrmint69

I put my 1/4 mile times right around 12.95 to 13.05 with the 3.73 gears. Is this acceptable for my car considering the motor is 100% stock (all bolt ons)with 109K miles on? I see others with low 12 sec 1/4 miles with similar setups. The car seems to drive just fine and if there is no noticable issues so what could be keeping me out of the low 12's?

Boosted_Z28

What do you mean when you say you "put" your 1/4 mile times right around 12.95 to 13.05? Have you run your car at the track? If so what where your incremental times and MPH in the 1/8 and 1/4?

mrmint69

The last track visit I had was in the 13.3x and will have the 3.73 gears installed so I figure it should drop about .2 to .3 tenth. I also only started from an idle but figure I might cut my 2.00 60' times a little with a 2000 rpm dump. My mph are right around 105.

streetbad

Get better tires.

boosted-lt1

Don't be suprised that going to 3.73:1 will not help at all (if you came from a numerically lower ratio).

I really like the 3.42


-Scott.

mrmint69

The tires are the best thing I have ever bought for the car. It is almost impossible to break them loose and on dry pavement with them cold they grip incredibly. When I try to heat them up after 3 seconds they start to grip so well that I can't keep the brake holding the car still.

number1

You do not have a low 12 second mph, unless you cut a 1.7 60'.

Have you ever had the car dynoed?
Do you have a wide band?

slomarao

whats the trap?

You need a line lock.

mrmint69

Have never dynoed and no wideband. Im thinking or getting one so I can tune it better. The trap is 105. Got the gears installed today but the track is closed for the year. Have a place out in the country to do some 1/4 mile runs.