I have some type of GM crate motor in my car w/ stock centerbolt heads, Performer intake/carb, and comp XE262 cam. I've been to the track twice, and my best pass is 14.99 after a handfull of 15 second runs. i dont hook up well, but i'm sure I could do a little better than that, and i'd just lke to see what you guys are doing on these heads.
thanks

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85 Z28- 350, Comp 262, Edelbrock Performer intake, Edelbrock 600 cfm carb and Edelbrock cat back, Summit headers and vette servo
-JVC, Eclipse, Pioneer, MTX, Phoenix Gold, Planet Audio

 

Forget the ET. THat's very dependent on the launch. What kind of MPH are you knocking down? I'd expect around 90-92 MPH with that combo.

 

you're right, two 15 sec runs at 90.6 and 90.7 mph and the 14.99 i went 92.52 mph. what kind of times should i be runnig w/ a good launch at 92 mph??

 

88 Trans Am w/ 134k miles
305 TPI
World Class T-5
drum/posi 3.08 rear
K&N open filter,T.P.I.S. airfoil,semi-ported plenum,timing @ 10* initial,MSD cap/rotor/8.5mm wires/coil,Centerforce dual-friction clutch,aluminum driveshaft,Flowmaster 3" dual chamber cat-back exhaust(un-gutted cat)......

reunning on semi-bald street tires,sitting at 210*,w/ a bad launch,A/C on,cooling fans both on,this is what i got at Atco Raceway in May:
R/T-1.210
60'-2.212
330'-6.250
1/8-9.582
MPH-73.77
990-12.373
1/4-14.895
MPH-90.78

the MPH should have been a bit higher,but for some strange reason i decided to shift into 4th gear before i passed the traps,lol..
im usually at about 93mph when i pass...

i also have a few 15.10's on hand with 92MPH passes,thsoe were all pretty much the same run conditions as the 14.89 but bogged hard on the launch instead of spinning

Andy

 

Over 211,000 miles on the LG4's stock 416 heads, and I've got this...
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Pete

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Pete's Place
HiOutput Tech Page
83 SC..former V6...now 213+k mile LG4/5-speed.. 14.891@95.54
89 Formula..ultimate project car..fast as I can push it with one flat tire
79 Lemans..267/auto..no brakes

My karma ran over my dogma

 

87 Iroc Z 305tpi
gutted cats & air boxes.

First time to the track and was gonna post anyway to see if this is an ok time, it was my best out of two passes:
RT .6
1/4 15.63 @ 93.2 MPH
is that normal for a 305tpi?

The car is a dog in the low end, it can't spin the tires on a straight start. Any suggestions for some tourqe?

 

13.89@99 1.92 60'(i think...can't remember exact)

Stock L98.(valve covers haven't been lifted) Stage 2 fastchip SLP cat back flowtech headers stage 2 shiftkit and a decent amount of suspension work...and car was run on drag radials.

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