ring and pinion gear

[snakeeyes1387]

I am looking at changing out my rear end as well as the pinion gear. Now i was looking at them all and I am not sure what to go with. Also I have a sort of stupid question, the ring a pinion gear is it a limiter or a multiplier? As in a 4.10 gear for every one turn of the axle do the wheels turn 4.10 times or for every 4.10 turns of the axle do the wheels turn once. I currently run about 300hp. Later this year however I am going to be dropping in a 347 stoker at 410hp or a 408 stoker at 450+hp. I have had the 4.10 gear recommended to me. If the gear is a multiplier that makes sense to get the most power from the engine, however if it is a limiter then there is no reason to go with a higher gear and to only go with a low 3 gear.
Thanks for the help in advance!

 

[bill302]

for every 4.10 turns of the axle do the wheels turn once.and do you have an auto. or 5 speed...

 

[speedytang]

4.10 - 1
1 rotation of driveshaft equals 4.10 turn of the wheels.

 

[Grn92LX]

4.10 - 1
1 rotation of driveshaft equals 4.10 turn of the wheels.

No. 4.10 turns of the driveshaft for 1 turn of the wheel.

 

[87'GTstang]

No. 4.10 turns of the driveshaft for 1 turn of the wheel.

The more power you are looking to make, then the steeper gear = more ideal (numerically lower number). No since in having 4.10's in a vehicle with 450 hp. Set your goals first and stick with them; i'ts like setting a car up for N/A only to turn to the forced induction crowd.

 

[Mavrick]

If your planning on over 400hp, then I would not go with so much gear. You'd be better off with 3.27's and 400hp!

The gear ratio is 4.10:1 - as in 4.1 rotations of the driveshaft will turn the tires 1 full rotation.

 

[Grn92LX]

If your planning on over 400hp, then I would not go with so much gear. You'd be better off with 3.27's and 400hp!

No. If he has a 450hp n/a combo, gear the car for the powerband. My car should do near 400rwhp and a 3.27 gear would severly slow it down. I had to swap from 3.73's to 4.30's to gear it accordingly.

 

[Mavrick]

If all you care about is 1/4 mile times, then you are probably right. For a street car, i'd personally want a longer gear than 4.30's!

 

[Grn92LX]

If all you care about is 1/4 mile times, then you are probably right. For a street car, i'd personally want a longer gear than 4.30's!

I understand. I geared my car for the powerband. This is a 100% street car. What I was saying is if you build a high powered n/a engine that makes good power up top and you do not gear it properly, it WILL be a turd. My 4.30's are amazing on the street. Perfectly streetable gear. I am not saying for anyone to get them, but if thats the gear you need for your powerband, go for it. My old 3.73's just didn't cut it.

 

[snakeeyes1387]

ok cool thanks for the help, this car is going to be daily driven and taken to the track occasionally. It is a manual and I know the transmission ratios also have a lot to do with the same stuff. I guess there is no perfect answer just try out a gear see how it feels according to what I want in the car and then go with it. Overall like any other I want the max performance out of the car but with decent shift speeds unlike the stock setup, that has you shifting way to early to keep up with many pony/sport cars due to their better gearing. Thanks anyway everyone, it's much appreciated.