changing gears 4.10 how much difference

[Fraxum]

Originally Posted by Parag

i have 4.10's love them. never use them at the track. and dont use 4.10's at the track. get the 4.11's
basically your new rev limiter speeds will be 45,55,75,105
sooo much better to drive. feels right. much better luck launching, although takes a while to get it to stick. 30% more torque is alot!!!

So with 4.11s you will need to shift into 5th in the quarter? Wouldn't that cancel out the benefit?

So is the fastest track setup stock LS3 gearing with taller DRs?

[bada450r]

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[Bad70supreme]

Originally Posted by Fraxum

So with 4.11s you will need to shift into 5th in the quarter? Wouldn't that cancel out the benefit?

So is the fastest track setup stock LS3 gearing with taller DRs?

No you would shifting into 4th, right now my car traps 116 at around 5700-5800 in 3rd gear. Adding a 3.90 or 4.10 would put you in 4th gear for a bit. The plus side when using tires and a gear is that your launch would be more agressive and should help push the car though the first half of the track faster... the extra shift could possible hurt a bit.

[Parag]

Originally Posted by Fraxum

So with 4.11s you will need to shift into 5th in the quarter? Wouldn't that cancel out the benefit?

So is the fastest track setup stock LS3 gearing with taller DRs?

i worded that wrong, those are my shift points, you can rev further than that. i have had 4th to 120 but thats north of 7000 rpm

and yeah it does sometime mean an extra shift, thats another reason you dont want to run too tall of a gear with too much power. for stock, 4.11 is perfect at track, but with 800, you would probably be better off with a short gear like 3.73

you will rev out fourth in 1/4 mile with 4.11's, just as you will rev out stock 3.43's in third.
that shows how much of a difference the gears are and how large of a jump 4.11's are and why nobody really does them if they are only after the timeslip. 3.91's are more reasonable to work with.
in 1/8 you will rev out third, so 3.91 are better there too.
but in a stock car you will still have power all the way to the line. the problem is when you have more power and rev earlier

[Pro Stock John]

I'd think the 4.10's would (assuming you are running drag tires) help with launching the car and net you some mph up top. In the 4th gen days they were worth a tenth in ET and 2 mph in a bolt-on car.

[bada450r]

Well I talked to Richmond about the 4:11 gear and they say that, that gear is recommended for track only... They're build out of a nickel alloyd and gets really hot , and in continuous use would burn up....you can also Conbat gearing with different wheel/tire combo...I know my sig says 4:11 but I put that up before installing the gears, I ended up with 4:10 Richmond gears and have not had any problems not even whinning...hope this helps