From Auto to 6speed new car
Auto to cars were 5700rpm iirc and would shift itself so I missed out on driver involvement quite a bit, great cars though.
i will see about posting pictures of the new car.
Manual allows you to determine at what RPM to shift vs automatic but it is the motor that dictates how high a RPM it can. If your LT1 has the original valve springs...that would significantly lower how high a RPM it can make before valve float.
New valve springs and a PCM tune for more HP would improve performance. Swapping to 4:10 rear gears with a T56 will really wake up its off line performance
Mint interior all original
Skip shift eliminator ($30)
Short throw shifter, I like the B&M ripper but there are others, the stock shifter sucks
Bilstein HD shocks if you are still on the stock worn out ones
Long tube headers, ORY, and magnaflow or other straight through catback (not flowmaster)
cold air intake
tune
Better valvesprings, 1.6 NSA rockers on a 7/16 ARP stud, guideplates, and hardened pushrods
32mm front sway bar from a 99 or earlier WS6
If your ok riding a little lower, do Strano or BMR springs while you do the shocks. Just the above mods, and replacing worn out tie rods, ball joints and bushings, make a 6 speed so much fun to drive. Stock, they handle pretty bad compared to a modern car, but once the suspension is updated, it’s so much more fun to row gears on windy roads. Getting the valve train taken care of let’s you run it to 6300rpm without worry and that’s where you have to shift on a stock motor for best times at the track. 3.42 or 3.73 gears are plenty for a stock motor, 4.10s are good too but the stock 3.23s are a bit too low.
Last edited by LTX; May 1, 2020 at 02:12 PM.
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Beware when swapping gears it may bring a driveline vibration on because the driveshaft are not balanced that great, I got an aftermarket aluminum one for like 200 or 300..
Tick uses the Tilton MC...better to go with the McLeod (wilwood)
4:10's are excellent gears for a T56 if you run a 27" tire. Shorter tire go 3:73. I have a 27" tire and at 80 mph I am at 19xx rpm in 6th
you can use a RPM calculator to see what rpm you will be in when you enter your tire size and rear gear and 6th gear trans ratio. My car is a 4 speed on street, 5th on hwy until I can "sustain" 65 mph then I shift into 6th. lower than 65 the motor lugs
Manual allows you to determine at what RPM to shift vs automatic but it is the motor that dictates how high a RPM it can. If your LT1 has the original valve springs...that would significantly lower how high a RPM it can make before valve float.
New valve springs and a PCM tune for more HP would improve performance. Swapping to 4:10 rear gears with a T56 will really wake up its off line performance
Last edited by poishishikochi; Jun 29, 2020 at 02:04 AM.
Thats just my my personal opinion.










