Daez

Not huge into track racing, in fact I doubt much racing will be going on with the car in the first place.. I modify it mostly for the fun of driving it. I have 3.23 gears in a 6spd right now(Car had a 9 inch before I got it that was sold out and swapped in a 3.23 from an auto).

Car is full bolt on's with a built t-56 atm. Mods within the next few months will be LS6stage 1ish heads from tsp(most likely, unless I run into another deal) and a large cam(similar to ms4), and a 150 wet shot(more of a back up thing than a use all the time thing).

I would be perfectly fine going 4.10's or hell, even 4.30's if it would give me the most performance on the highway. I'm hearing that gear changes don't really help much at the track from reading the gear sticky. What is the real deal on what changing gear ratio's do to your car? I'm confused, and it's driving me nuts.

RacerXLs1

iTrader: (14)

It would be be between 3.73 or 4.10's

Elliott's94Z

iTrader: (12)

If you go from 3.23's to 4.10 it's going to be a night and day difference. IMO 3.23's in a M6 would suck. I wouldn't go less then 3.73's for a M6. For your roll racing by putting 4.10's in you will reach your shift points a lot faster and have less "RPM" drop in between each gear. If you do a lot of roll racing get them 3.23's out...actually get them swapped out regardless.

myws61

iTrader: (1)

All I do is roll race, and I still run stock 3.42's on my 10 bolt. Im putting a decent amount of power down too. 4.10's and your 4th is done at like 120. I had them in there for awhile, and of course they broke. You hit it, and shift, shift, shift and your done. Like elliott said, your hitting your points so fast.

Daez

Why don't gears seem to be doing much for people at the track? The obvious answer for what shorter gears do is make the car get up to speed faster, but have less top speed.. why is this not looking to be the actual answer? If it was, wouldn't gears be like the #1 mod for the track(assuming you don't run out of gear and have to shift into something beyond your 1.00:1 ratio. IE. into 5th gear for manuals)

Weezzer

What about 3.89's?

ryansm1

iTrader: (8)

You spend more time shifting, too. I have 4.10s and a shorter tire and top out 4th at ~110mph. If I trap higher than that, I would be shifting four times, or banging off the rev limiter through the end of the run. Third is the 1:1 gear in the autos, and you generally don't want to shift into 4th at WOT, which is probably why you don't see too many people using 4.10s in an auto, in addition to the fact that you can put a stall in them.

I have a similar setup to what you might end up with (bolt-ons, G5x3, gears) and enjoy it. Like mentioned, the engine speed drop between shifts is lower with the gears, which is nice if you go to a bigger cam that moves the power band up.

If you are going to modify it for the fun of driving and/or roll racing, the gears will help, especially going from a 3.23 to 4.10.

2001z

iTrader: (32)

Gears help you get of the line without bogging so bad and to get your 60 foot down some. I run 4.11s and really wish i went with 4.30s or bigger. I went from a 10bolt with 3.42s to 9in with 4.11s and its night and day.

JimsWS6

iTrader: (1)

Roll racing I'd say 4.10's. My buddy has 3.73's on his M6 SS and I'd glad I didn't go with them. Not enough. The 4.10's work great. I've raced a few cars starting at 20mph in 2nd gear at 2000 rpm, and my car still pulls like crazy. Plus it's awesome dropping it into 2nd at 50 and lighting up the tires!

Only reason I can see with lower gears making cars slower at the strip is because of traction. Once they hook lower gears will be faster

Daez

What I was wondering(And I remember trying to do the math for this) is.. I think with a 4.10 gear set, in 5th gear your are still basically at like a 3.42 ratio or so. I forgot how to do the math for it, and I'm not sure if it was ever right in the first place. Is it? what is the equivilant of using 5th with 4.10's? like what gear set + 4th gear = 4.10's + 5th gear?

Does the race really end after 4th gear?

ryansm1

iTrader: (8)

Going to 4.10s from 3.42s is almost like losing a gear, going to 4.30s would be very close to losing a gear (so 5th with the 4.30s is more like 4th with the 3.42s).

I've attached an Excel spreadsheet that will give you an idea. Play around with it (put in your tire size and rear differential ratio and see what speeds you get at what rpm).

I guess whether the race ends after 4th depends on who you are racing. I wouldn't go much faster because it's too fast for the street, hypothetically speaking.

If you are worried that you'll change gears and not like it, try to drive someone's car with a similar setup.

ABQ99TA

iTrader: (17)

I would think if you are roll racing 4.10s might be to much only because most of the time when I roll race on the street I hit around 140 before the end of the race. With 4.10s you would have to be in 5th gear to soon and your pull would be slower. I have 3.73s and they do fine but I think 3.90s would be sweet also. If your only racing to 110-115 4.10 would be fine.

Engine_HP

iTrader: (1)

i have the 3.23 & t56, i enjoy it alot on the street.
i beat all 3.7 when i roll 70kmh.


my gear began to wear i might replace it with a 3.4