I just took my '85 L69 5sp to the track last night for the first time. Only mods are K&N and Catback exhaust with gutted cat. What RPM should I be shifting at? I only ran a 16.1 at 87mph and I've seen people with LG4's doing as good. My reaction times were .5's on all 3 runs (broke my clutch linkage on the third) but shouldn't I be in low 15's high 14's with this car? its 3:73 posi with BFG TA's I didn't seem to spin too bad off the line. I think my shifts were about 3000rpm off the line, first at like 2500rpm and second at about 3000rpm... Third at about 4500rpm Should I rap it out to about 5grand through all the gears? (except off the line)?

 

You should run each gear to whatever the engine pulls to (4500) in each gear. Get as much power to the ground as possible.

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91 B4C 305 TPI - SOON TO BE 383
TREMEC 5-SP, STOCK 1-BOLT REAREAND w/342 GEARS
K&N, AIRFOIL
EDELBROCK HEADERS, DUAL CAT TO HOMEMADE Y-PIPE & 3.5" SINGLE PIPE W/ FLOWMASTER
CRANK PULLEY, MSD, FUEL PRESS REG
COWL HOOD, WELD WHEELS
14.1@ 98MPH
-------------
OTHER RIDE
67 CAMARO - STREET CAR
BIG BLOCK, PUMP GAS
350TH w/ATI 10"
12-BOLT w/373 GEARS
10.90s ON MOTOR - ET-STREETs w/MUFFLERS

 

A well tuned L69 should pull well to 5500 rpm
Check my new post for L69 potential.....

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Tom K.
84 Z-28 M5 305 L69 HO
pulleys,coil,3:73(stock)
Jet chip, fan switch,
Al dshaft,1.6 rockers,
LCAs and brackets,BFG DRs
14.20 @ 96.74 2.02 60ft

[This message has been edited by 84305HO (edited May 10, 2001).]