andypdbz

iTrader: (1)

what am i running in the 1/4 mile if im crossing at 105mph - 107mph?
i checked the ET database and didnt see anything relating to the trap speed.
the local drag strip doesnt have the times up but they do have the track open...

Ouija

iTrader: (3)

Well ET's can vary with the exact same MPH.

With my 00 in stock form (2.73 A4 TA) with a 103MPH trap speed was a 14.1

paper doll

iTrader: (7)

13.1 @105 , ive seen 12@102 , dunno the exact corralation , dont really think there is one, but how do you know your trap speed and not your e/t?

demonspeed

iTrader: (7)

With a M6, I'd say mid 13's+. With an A4, i'd say low 13's-.

andypdbz

iTrader: (1)

its a very rough estimate, i just looked at the speedo same time i finished 1/4 mile.

exstanger

iTrader: (4)

If I remember correctly hp=trap speed and torque=et. So it's hard to say. Where did you get the mph from. was it trap speed or was it your speed as you crossed the finish line and you just looked down at the speedo.

DrEvyl

iTrader: (5)

My Formula traps 105-106 mph, and runs 13.3s.

DrEvyl

iTrader: (5)

That seems incredibly slow... I was running 13.5x @ 103 with 2.73 gears.

Roarin_8

iTrader: (5)

ET = traction

qwikz28

iTrader: (12)

my run was in the sig. and that was with a crappy clutch and heavy front wheels. i'm shooting for 12.5 with only changing clutch, shifter, and wheels and tires. i should run the same trap though.

10.5AWD

I've run 13.0@107.59 bone stock in my A4 01 SS.

andypdbz

iTrader: (1)

guess i'll just wait till the times are back up.
i'll post to see who was the closest guesser

BlueSix

If your speedo is showing 105-107 when you cross the 1/4 mile then you are probably trapping 102-104. In an A4 with a decent hook (2.0 60' or better) that is bottom 13's.

mrhzk35404

iTrader: (7)

I ran a 13.30 @ 107mph stock and a 13.18 @ 109mph with headers and catback my 60' time suck @2.20

paper doll

iTrader: (7)

does trap speed really factor in that much ? i ran 13.1 @105 and some dude ran 13.2 @107

black00TA

iTrader: (3)

if i could guess i would say 13.4 -13.5 if u got stock gears. based one what ive seen from these cars. anyway of telling your 60ft?



numbers vary widely, see sig

darrensls1

That's an easier question to answer for A4 guys. I ran several passes of 13.2 to 13.4 @ 105. I also had a 13.1 @ 106 (2.0 60'). But that's for an auto with 3.23's so all I have to do is hit a decent launch and hold down the gas pedal.

M6's like yours will also have to factor shifting into the mix. But with decent conditions and a good driver the car is high 12's to low 13's. With most drivers (average skills) and or not so perfect racing conditions it'll be 13.3 to 13.6 I would think.

demonspeed

iTrader: (7)

Exactly. If you looked at your speedo, then you weren't actually trapping that high. MPH is an average speed between some point and the finish line. I don't really understand the point of doing it that way, but that's the way it is.

777

iTrader: (21)

Trap speed is a correlation of a few things. One how your hp/torque curve is. If it's flat then you are going to have a lower trap speed than someone without a flat curve. Most forced induction cars will trap higher than a n/a engine that runs the same time. Trap speed also deals with traction. You can get a real good 60' and have a low et but also a fairly low trap speed. If you spin a lot then you will have a high trap speed.

Ouija

iTrader: (3)

Bad traction due to old tires, fully loaded TA, Chrome 17" rims, hot humid Texas weather, racing in OD = crappy times.

I've since fixed a lot of that.

The 01, (identical stock form to the 00 except of course the LS6 intake & EGR) was putting down similar times the same day. After adding a lid it's best runs so far are mid/high 13s also trapping in the 103-104 range.