4:10 gears - ZR-1 Net Registry Forums

Hog · 06-06-2018

Do any of you guys with 3.73 or lower(4.10's, 4.56's) with the stock tire heights ever do any 1-3-5 shifting when just driving her easy?

The last C5 I had some decent seat time is was a 1999 6 speed with the standard 345hp@5600/350lb/ft@4400rpm LS1. It had 3.42:1 gearing and its 2.66:1 1st gear ratio (autos were 2.73 or 3.15-but have the 3.06 1st gear of the 4l60e to aid with spirited acceleration-at least until that massive rpm drop into 2nd is encountered)
with stock tire height 275/40zr18 rears of 26.6" (315/35zr17 is 25.6") and I found city driving unenjoyable.
I always said that if I got into a C5, a rear gear change would be a must, or go for the lower ratioed Tremec M12 2.97:1 1st gear trans and LS6 engine, though you are still stuck with OEM 3.42 rear cogs.

I didn't think that the 97-00 LS1 had the best off idle part throttle grunt, esp. compared to a GEN-2 LT1. Would an intact LT5 be better or worse than an LS1 in the part throttle off idle torque department?

WARP TEN · 06-06-2018

Just as aside to this rear gear discussion, when I was a teenager in the early sixties working at a local marine hardware store, the guy who ran the lumber yard--Vinnie from the Bronx--was building a '56 chevy based drag car with a big block (probably a 396). He said he was running 5.13 rear gears! What a stump puller.Probably shooting for wheelstands, and probably got up to about 20 mph before he had to shift to second. I don't know how well he ran in the quarter mile. That pearl is lost to history.--Bob

Paul Workman · 06-08-2018

Quote:

Originally Posted by Hog

Do any of you guys with 3.73 or lower(4.10's, 4.56's) with the stock tire heights ever do any 1-3-5 shifting when just driving her easy?

I (for one) often do 1-3-5, even with the 3.45s. But, definitely with Ami's 410s.

06-06-2018	#1
Hog Join Date: Jul 2010 Location: Woodstock, Ontario, Canada Posts: 1,275	Re: 4:10 gears Do any of you guys with 3.73 or lower(4.10's, 4.56's) with the stock tire heights ever do any 1-3-5 shifting when just driving her easy? The last C5 I had some decent seat time is was a 1999 6 speed with the standard 345hp@5600/350lb/ft@4400rpm LS1. It had 3.42:1 gearing and its 2.66:1 1st gear ratio (autos were 2.73 or 3.15-but have the 3.06 1st gear of the 4l60e to aid with spirited acceleration-at least until that massive rpm drop into 2nd is encountered) with stock tire height 275/40zr18 rears of 26.6" (315/35zr17 is 25.6") and I found city driving unenjoyable. I always said that if I got into a C5, a rear gear change would be a must, or go for the lower ratioed Tremec M12 2.97:1 1st gear trans and LS6 engine, though you are still stuck with OEM 3.42 rear cogs. I didn't think that the 97-00 LS1 had the best off idle part throttle grunt, esp. compared to a GEN-2 LT1. Would an intact LT5 be better or worse than an LS1 in the part throttle off idle torque department? __________________ peace Paul ZR-1 Net Registry Member #1494

06-06-2018	#2
WARP TEN Join Date: Apr 2007 Location: Lake Bluff, IL Posts: 2,036	Re: 4:10 gears Just as aside to this rear gear discussion, when I was a teenager in the early sixties working at a local marine hardware store, the guy who ran the lumber yard--Vinnie from the Bronx--was building a '56 chevy based drag car with a big block (probably a 396). He said he was running 5.13 rear gears! What a stump puller.Probably shooting for wheelstands, and probably got up to about 20 mph before he had to shift to second. I don't know how well he ran in the quarter mile. That pearl is lost to history.--Bob __________________ 2016 Long Beach Red Z06 #10281 "POPS Z" 1995 Polo Green #409 "WARP TEN"--Haibeck 350/510 package, 4.10s, Hurst, Stock Exhaust with QTP Cutouts --Sold but still running strong 1993 Quasar Blue #161 "HIL KING" --Sold but still running strong, now with more than 120,000 miles 1967 Marlboro Maroon/Saddle Corvette Coupe 300 hp/4-spd --Sold a long time ago ZR-1 Net Registry Founding Member #95 NCM Lifetime Member Favorite Quote--Attributed to Mickey Thompson: "Too Much Horsepower is Almost Enough"