AlabamaGuy

iTrader: (5)

What do you guys think? I need to decide on this one.

CenTexSS

iTrader: (2)

3.29's would be my opinion. I'd imagine 3.69's would hurt 60 foot and would make the RPM's on the highway too high.

JP_GXP

Do you want better acceleration or no? Who here is running 3.69?

AlabamaGuy

iTrader: (5)

That's what I'm going for. The car will be on a tire when it counts anyway so traction isn't *that* big of a deal I guess. Dave at TEP said that I would be in the power band in 3rd going through the traps with the 3.69s. In the back of my mind, I'm still afraid it would hurt traction too bad though.

707chance

iTrader: (2)

Last summer Mike got a 3.29 setup when he installed his new transmission. He said that his first gear was almost useless. I also went with 3.29s when I got my transmission last summer. TEP did the install and made some small changes with shift points. I really liked the feel of the car with the 3.29s. Now that I have added my other mods I have to be really careful with the throttle in first gear. When Ross was doing his transmission work he decided to stay with his original gearing, you will have to ask him why. If the weather is good this Sat or Sun I will get a video of my car accelerating and send it to you, car still not tuned.

GXP25

iTrader: (3)

It would be bad. Multiply that number by the first gear ratio.

If you're going to spend some money on a transmission might I suggest you wait a bit?

I'm moving forward with this come January.

GXP25

iTrader: (3)

Upload it and post it here.

Hawkins04

iTrader: (4)

I did not know they had gears over the 3.29's?

AlabamaGuy

iTrader: (5)

My plan was to do the transmission first and then do a relatively radical (for an LS4) camshaft shortly after. I wanted a steep final drive to match the characteristics of a higher duration camshaft. Would a 10" wide wrinkle wall tire really have that bad of traction on the car? It seems like that would really calm it down a lot.

evil 5.3

its easier to spin a 2.93 than it is to spin a 3.69. just look at the low range in a 4x4 their all a mulitplier of 4 and better

AlabamaGuy

iTrader: (5)

That's not correct. 4 wheel drive guys use a steeper (higher numbered) gear ratio to further multiply their torque output to offset the larger tires which in effect decrease their final drive ratio.

CenTexSS

iTrader: (2)

the 3.69's would probably be better suited on slicks, but the 99.9% of the time that it's not on slicks is the trade-off. It would be nice to see one of the LS4 cars hit mid low 12's on *****.

AlabamaGuy

iTrader: (5)

I think with a good gear and traction I wouldn't have an issue doing that the way I sit now.

CenTexSS

iTrader: (2)

Any interest in spraying on top of a big cam?

evil 5.3

I really hate to bust your stones on this one but its true read a stock 4x4 owners manual it says to use 4wheel low in the tranfer case for slick condition or when you need traction like ice its not just for big tires so a higher number is a lower ratio take the mustang guys for example the go from a 2.73 to a 3.73 or 4.10 you never see them post oh change the gear and now i just cant hook at all i vote 3.69 because i wish i could do the same

JP_GXP

If he does, I'll have to rethink all my plans... I don't wanna be a copycat.

I guess 3.29 would be more practical.

AlabamaGuy

iTrader: (5)

Contrary to popular belief I do know what I'm talking about. You're just assuming these things. A steeper gear will ALWAYS effect lateral acceleration traction adversely in 2wd vehicles. You're not going to spin a 4x4 under power on a dry road. They suggest the lower gear for offroad and adverse conditions because it allows you to apply the same amount of power at a lower speed so that you can navigate the obstacles more safely. It's not for lateral traction like we're talking about here. There's absolutely no way that going to a GREATER multiplication of torque is going to AID traction.

AlabamaGuy

iTrader: (5)

That's the plan eventually.


I'm not worried about a copycat. There's only so many directions we can go.

JP_GXP

Good, I may not get a big cam, though, definitely spraying, and 90% chance of keeping stock gear ratio, so I won't be an exact copy.

AlabamaGuy

iTrader: (5)

The plan is a built trans and a tire for LS-fest this coming year. Hopefully I will have a kit too but money's tight.