What tires are you using?(on what kind launch)?I cant go under 2 seconds with my SZ50's.Im looking for a better drag tire and just a little less street tire than the SZ50's..

Daz

 

I'm getting high 1.9 60' times with 34k-mile BF Goodrich Comp T/A ZR's (255/50R16) that are getting bald but not down to the wear indicators. What really helped is the 2400 stall converter and 3.42 gears. Sometimes, a track isn't prepped right and nobody can hook up good, especially with street tires. I usually foot-brake the engine up to 1000-1200 rpm and let the converter do its job. If you want a better drag tire that can still be driven on the street, the BF Goodrich Drag Radials have an excellent reputation and I've seen cars pulling 1.7x 60-foot times and 12-second 1/4-mile runs on them.

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Greg Westphal
'87 IROC 305TPI/A4

 

Best of 1.58 here...

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1989 Formula, 383", DFI, Mini-Ram, S-Trim Vortech, blah, blah...
Best ET: 10.796 @ 125.8 mph

TURBO 406 PROJECT STARTED!!!

Other expensive hobby: assault weapons/shooting sports

Employed at:
Hahn Racecraft
Accel EMIC/DFI Tuning
Turbosystems & Custom EFI

Member of Midwest F-Body Association
http://www.mfba.org

 

I don't have a lot of track time, but on my 92Z with SZ50's, I had run 6-8 runs in the 1.91-1.93 range with my 350. Now with the 383, but still on the SZ50's I'm in the high 1.8's, but I haven't gotten the launch right with the new motor.

With my auto, I'm leaving the line at 2200-2400.

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KevinP92Z
92 Z28 383 SLP cam,SLP headers,SLP 2ontheLeft,Trick Flow TW heads & pistons,Edelbrock base,Accel SuperRam,52mmTB,Scat Crank & forged ConnRods,MSD 6AL,SLP convertor,Baer 13/12" Track,Moser axles,Hotchkis,Genuine GM 3.42s,SLP HD Torsen,17x9" chrome SS rims
96T/A w/SLP Ram Air,SLP 2ontheLeft, Bilsteins, Baer, Hotchkis, Genuine GM, Torsen
76 4X4 Blazer 400TPI project

 

Runnin 8.25" Firestone Slicks. Check the sig.

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84 Camaro ZZ4 with HOT cam. 1.88 60' (12.98 @ 105MPH E.T.)
Other Mods: You name it and I have probably changed it.

91 Firebird 5.0L TBI

ASE Certified CHEVY DEALER Auto Tech
LIVE AND DIE BY THE ALMIGHTY BOWTIE!

 

1.88 sec 60' with extremely mild 350 TPI (see below), Nitto drag radials, Vigilante converter, full Spohn suspension and one wheel drive (fried posi). I run the Nittos as my daily drivers rain or shine and love them. They wear pretty well on the street and hook real nice after a good burnout.

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89 Formula 350, Accel Tri-Ys, 3" SLP, chip, Jacobs, SLP cold air, Probuilt tranny, Vigilante, 3.27s, Spohn torque arm & LCAs w/brackets, GW Subs

 

Check the sig. All I have for suspension mods are Spohn LCA, subframe connectors and Nitto's.

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87 IROC-Z 305 TPI gears, exhaust, converter
14.70 at 94.1 mph with 1.90 60'