Test and Tune at Gainesville drag strip

[aafc]

After I had my headers modified so I could remove transmission without removing the headers to have the torque converter made looser (higher rpm for launch) off the foot brake. Went to Gainesville raceway for test & tune ( only
open for drag radials and slicks) NO STREET TIRES! I was able to make 3 runs
about every 30-40 min between runs. Temp 94+ deg ,they did drag the track
prior to making runs.
Before I had the converter made looser I could only launch at 1800-1900 rpm.
with the looser converter I started out leaving at 2300 rpm first pass.

Each run tires were set at front 40lbs, rear set at 18lbs

Run 1
LEAVING @ 2300 RPM R/T .157 - 60FT 1.642 -330 4.848 1/8 7.527 @
91.00MPH 1/4 11.891 @111.70

Run 2
LEAVING @ 2500 RPM R/T .037 - 60FT 1.606 - 330' 4.788 - 1/8 7.458 @
91.14 - 1/4 11.849 @ 105.47

Run 3
Leaving @ 2700 rpm R/T .080 - 60FT 1.628 - 330' 4.814 1/8 7.489@
90.58 1/4 11.858 @ 112.01 ( TRACK GOING AWAY SPUN)

Run 4
Leaving @ 2700 spun real bad abort run I even tried dropping rear tires to
17lbs
No sense beaten car up if I'm losing traction. So I set the tires for the
drive home.
Well i found that I can leave at a higher rpm off the foot brake, just need
more seat time in the car.
Next test and tune (NO STREET TIRES) AUG 14th ORLANDO SPEED
WORLD

[Young1]

Dang man. You are becoming a consistent bracket racer.

[Jagdpanzer]

Nice 60s. What tire, rear gear, and engine mods?


Sent from my iPhone using ZR-1 Net Registry (http://r.tapatalk.com/byo?rid=90383)

[aafc]

Thanks I'm just haven fun once in a while.
My last ride was in Gator national 1988 march. I ran a B/ED dragster with a
340 cu.in. we were running 7.48 @ 175.00 mph when I quit racing.

So I'm trying bracket racing for fun.
Car 1990 ZR-1 #2546 368 cu in LT5 by South Georgia Corvette. 2009.
motor makes about 525@ crank and 418 to rear wheels. Rear tires are
M/T ET Streets SS 315/35/17, front rims are stock ZR-1 rims that have been
narrowed to 6in with Hoosier 26x50RT17 74H
Transmission 4l8OE 2.74 first gear, 2nd 1.57, 3rd 1.1 4th .75. rear end
3.73 and QA1 Shocks single adjustment.
Still learning how to leave the line using foot brake instead of a transmission
brake.
Next race is at Orlando Speed World Aug. 7