AP2S2.2K

Okay guys, so I been searching forums non-stop to figure this out and all i find is dozens of posts about what the cruising speed is with the 4.77s/4.44s... orr if someone likes it or not.

Well I could give 2 shits about either of those things. What I care about is, do you lose the acceleration at top speed. Lets say im at 100mph with the 4.10s and i punch it, vs, if i have 4.77s at 100 and I punch it... Do i loose the accel? Or is it just you go faster until you hit the gear limited top speed. This is the only question holding me back from getting any gears. Top speed is nice to have but dropping it 10-20 mph to gain a lot more acceleration is much nicer IMO.

So say, 2 AP2s are on the highway and you do a 80-130 roll, one has 4.10s, one has 4.77s, who wins? Just curious not trying to bring any sort of street racing into it, just curiosity

Stratocaster

The higher geared car will pull on the lower geared car always. It is simple phyics. You only lose mathimatical top speed.

CKit

Is that true? I'd think if the 6th gear was an overdrive gear and very long, changing the final drive and getting to that gear early... and trying to accelerate in an overdrive gear might not be the best.

For example, accelerating in 5th on some cars might be better than accelerating in 6th with a higher final drive.

qbmurderer13

ive also been curious about this, at what point (or speed) do the geared cars start accelerating slower than a car with stock gears?

Another scenario i can add here. stock s2k vs 4.77 s2k from a 50mph roll? or even a 4.44 vs a 4.77 from a 60mph roll?

INTJ

Yep, and the reason for that is the actual gearing...

Having numerically higher ratio final gear equals the same total ratio or better than the stock ratio in an a lower gear, so the acceleration is better. So (without running through the chart) You have more torque for each gear equivalent to the lower gear in a stock car.

This was well hashed out and some guy ran a really good gear comparision to termanl speed in the archives.

jyeung528

i wouldn't say you'd have more torque...just a gearing advantage.

if you had more torque, it would show up on a dyno...but it doesn't...

AP2S2.2K

thanks guys thats exactly what i was looking for, I had always assumed that to be true till some morons post that they lost top end and for some stupid reason i actually began to doubt physics itself... O well, 4.77s it is hahaha

Errrrk

I'm thinking 4.56s for my Ap2. You really think the 4.77s won't get annoying? You have to shift into 5th for the 1/4 mile. For an Ap1 I would get 4.77s for sure. If you rev to 8500rpms it would be ok I guess.

mikegarrison

No, it is not.

At any given speed, your acceleration is determined by your available power, your weight, and the drag. Gearing directly affects none of those.

Keep the engine in the powerband and you'll get about the same acceleration no matter what your final drive ratio is.

street_ruler

yes it does have more tq. the nubers on a dyno are adjusted to take into account gearing. when it comes to physical power at the wheels the tq is actually like 1400lbs due to gearing. thus why tractors are like 14:1 gear ratios

oh and if someone ever says tq is all that matters ask em to race you in a tractor.