Drag tunning help me please!

101
ControlledAnger
Just wandering what a basic overall set up would be for ever car to do a better quarter mile ( not special stage 7, 2 mile long straight lol).

I understand the basics like;
-slight downforce to plant the tourqe
-lower gear ratios, but how low? ( i know it depends on the rpm pull range)
-Suspension is a part im lost at
-anything else?
 
Hmm, you don't use low gear ratios. Reference real life.

Drag cars definately use low gear ratios. One of the first things drag racers do is toss the stock 3.XX ring and pinion and throw in some 4.10's. Maybe you're confusing it with numerically lower, which is the opposite of the common vernacular.
 
Drag cars definately use low gear ratios. One of the first things drag racers do is toss the stock 3.XX ring and pinion and throw in some 4.10's. Maybe you're confusing it with numerically lower, which is the opposite of the common vernacular.

Then they throw huge ass slicks on it to counter the gearing. How many of them also run 2 or 3 speed automatics, again taller gearing.
 
Then they throw huge ass slicks on it to counter the gearing. How many of them also run 2 or 3 speed automatics, again taller gearing.

The way to get a car down track in the shortest time possible is to:

1. Have as much traction as possible
2. Use as much gearing as you can without losing traction
3. Not have the car smash a limiter or run out of breath down track.


The reason many drag cars run 2-speed (Powerglide) or 3-speed (C4, Turbo 350/400, Torqueflite) transmissions is down to low losses and light weight in the cases of the 3-speeds and strength + low losses in the case of the Powerglide.

They also tend to use Ford 9" or Dana 60 rear axles as they don't break, though they're also heavy and a bit high on losses.
 
@Rotary Junkie

Let's break this down to discuss both sides of gearing, since trans gears and axle gears should be looked at independently here.

Transmission gears. You want the gears to be as long as possible while staying in the power band. Shorter gears will create more shifts with potential loss of time, stock auto or a manual. In a built auto or a sequential box, shifting is almost irrelevant.

Axle gears. Axle gears are chosen based on a two things. Tire size and the ability to pass through the quarter mile line at the end of the powerband in a gear that they chose.

So gearing in itself is dependent on the powerband. Although glides and most 3 speeds have hell of a strength, thats not the main reason. It has a lot to do with using the powerband to its fullest.

If you wish to settle this on GT5, I'm more then willing.
 
Trust me, if there was an affordable way to run more gears with low friction losses, people would use it.

I don't feel differential ratios should be counted differently from the transmission gears; it's entirely about the overall ratios (That said, high multiplication in the trans with a traditional manual likes to blow cases apart).

Regardless of how many gears we're running, first should be as short as possible without blowing the tires off on launch, high gear should have the car juuuust past powerband going through the traps. At least, if we want to go as fast as absolutely possible.

As for settling it on GT5... Lots and lots of variables, largest of which is absolutely no timing system for a 1/4 mile run. GT4 would be better suited; I've already got my Spirit R time recorded with proof as well. I invite you to attempt to beat it.
 
Trust me, if there was an affordable way to run more gears with low friction losses, people would use it.

I don't feel differential ratios should be counted differently from the transmission gears; it's entirely about the overall ratios (That said, high multiplication in the trans with a traditional manual likes to blow cases apart).

Regardless of how many gears we're running, first should be as short as possible without blowing the tires off on launch, high gear should have the car juuuust past powerband going through the traps. At least, if we want to go as fast as absolutely possible.

As for settling it on GT5... Lots and lots of variables, largest of which is absolutely no timing system for a 1/4 mile run. GT4 would be better suited; I've already got my Spirit R time recorded with proof as well. I invite you to attempt to beat it.

I'll try when I get home. I had a supra running 8's in gt4.
 
Okay, so for LSD, the settings should be like this for drag racing?:

LSD – Initial 10
LSD – Accel 60
LSD – Decel 60
 
I dont think they would use more gears if they could, look at top fule for exsample. They have only one forward gear and slip the clutch all the way. also The poweglide or any real auto dosnt act like anything in GT5. with a properly setup torque converter theres very little rpm change all the way down the tack, mabye a 1000rpm. witch is what there after, stay in the powerband and shift as litttle as possable. Another good real worl exsample is my wrx and my friends honda crx. We both made about the same power but he was lighter. However every time we raced i beat him. he would pull me off the line then i would pass him when he shifted, he would start to catch up then he would shift again and fall back. buy the end of the 1/4 he was in 5th and i was at the top of 3rd. weather this works in GT5 idk. its not a drag sim, spring and dampener rates will be way wrong, tire compounds to hard ect...

o and the people that first put a 4:10 or smiller in there car is because 1 they dont have a lot of power and 2 factory gearing is horrid most of the time. i have a 28" tire in my mustang with a 3:27 rear gear and run in the low 10's with a 4:11 id be bouncing off the revlimit way before the 1/4 but if i had a 32" tire who knows that might be about right.
 
Then they throw huge ass slicks on it to counter the gearing. How many of them also run 2 or 3 speed automatics, again taller gearing.

You can't get slicks for one,racing soft tires have a stiff sidewall for cornering so that theory is out the window.You need drag tires that are softer and have very little sidewall stiffness.Lower the rear suspension,raise the front suspension and see what happens then move the sliders around.
Put in 4:11 gears and give it a shot.Top speed should not be an issue as it's a quarter mile.Shouldn't have to hit 4th gear anyway.
 
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Basicly, this is street drag on ssr7, and the question is which setups are good for these type of racing, and that is the features thats in gt5. I dont speak about tuning the cars like real drag racing cars, but cars that actually will accelerate faster etc on straight line in the game. 1/4 is bull in gt5, because if one car has just a little bit better traction and jump the line, it will be half the way on 1/4 mile, when you still spinning tyres in the beggining. The only thing that can prove which car is faster is 2 miles ssr7, then cars have the chanse to pass you.

Lets take a 700 hp zr1 in this example it has amazing traction compared to a 700 hp supra, which has horrible traction with wheelspin. Why? because the tires are wider on the zr1 and give more traction. But in real life, we know that a 700 hp supra wouldnt run tock size tires. And in a real drag strip, it eould probably beat the zr1 anyways.

Once again, try to apply real life drag physics to gt5 which hasnt got drag physics is questionable. I run setups whic are the oposite of traction, like low car, stiff springs etc, and they do well in the ssr7 drag.

Im reallty glad though that "street drag" was invented by the gt5 players, because it is fun. I dont mind that there arent a real drag strip, because 1/4 mile is way to short for me, i like top speed long straights. Just look at förza 3, they have a drag strip, but it is useless because forza havent got drag physics.
 
You can't get slicks for one,racing soft tires have a stiff sidewall for cornering so that theory is out the window.You need drag tires that are softer and have very little sidewall stiffness.Lower the rear suspension,raise the front suspension and see what happens then move the sliders around.
Put in 4:11 gears and give it a shot.Top speed should not be an issue as it's a quarter mile.Shouldn't have to hit 4th gear anyway.

A) I can't decide whether you're discussing the game or real life, and B) if you are discussing the game, I'm not sure you've really played it.
 
A) I can't decide whether you're discussing the game or real life, and B) if you are discussing the game, I'm not sure you've really played it.

What in purple jesus are you talking about.Do you see huge ass slicks as an option to buy?Having raced super modified 750 HP dirt track cars in real life and a 71 Chevelle that is almost 900 HP sitting in my garage I think I would have a little clue of how these things work.This is not GT 4 or 3 or 2 as some people have stated.There are no mods for this game as of yet. This is not a drag racing sim nor was it intended to be.Don't enlighten me with your smart ass comments as I don't think you have a clue about a video game and real life anyway.
 
What in purple jesus are you talking about.Do you see huge ass slicks as an option to buy?Having raced super modified 750 HP dirt track cars in real life and a 71 Chevelle that is almost 900 HP sitting in my garage I think I would have a little clue of how these things work.This is not GT 4 or 3 or 2 as some people have stated.There are no mods for this game as of yet. This is not a drag racing sim nor was it intended to be.Don't enlighten me with your smart ass comments as I don't think you have a clue about a video game and real life anyway.

Well your comments led me to believe you're talking about the game. In which case, please show me how you can put 4.11 gears in any car in this game. Please enlighten me.

I have just as much knowledge about drag racing as you. So instead of playing the OMG I own the greatest cars ever, lets talk like real people.
 
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