Two races, same cars. O I have 4.30s, the otherne race

[98 Saleen Cobra]

Well I don't have a stock transmission.. I'm sorry that you think it's flawd but for me its fact.. I've seen it done etc.. Same cars, same weather different gears in my 550rwhp car.. With the 3.55's in my car and 3.55's in my buddies 460rwhp 04 I pulled buslengths by the top of 4th.. Him with 3.55's me with 4.10's I pulled a car maybe 2 by the top of fourth.. No passengers in either car.. No he didn't out drive me no my car didn't lose power etc etc.. It was simple.. We started the race with me in 3rd and 4k rpms.. He was in 2nd at like 4500rpm.. He had the gear advantage.. By the time I clicked 4th he was in the middle of 3rd again gear advantage, when he went into fourth I started pulling a little bit more because I had about 1k rpm left in 4th and was in my powerband.. It is what it is.. I'm not going to argue with you or do math equations.. This is a real world example of what happened to me..

 

[Mystic-SVT]

Well I don't have a stock transmission.. I'm sorry that you think it's flawd but for me its fact.. I've seen it done etc.. Same cars, same weather different gears in my 550rwhp car.. With the 3.55's in my car and 3.55's in my buddies 460rwhp 04 I pulled buslengths by the top of 4th.. Him with 3.55's me with 4.10's I pulled a car maybe 2 by the top of fourth.. No passengers in either car.. No he didn't out drive me no my car didn't lose power etc etc.. It was simple.. We started the race with me in 3rd and 4k rpms.. He was in 2nd at like 4500rpm.. He had the gear advantage.. By the time I clicked 4th he was in the middle of 3rd again gear advantage, when he went into fourth I started pulling a little bit more because I had about 1k rpm left in 4th and was in my powerband.. It is what it is.. I'm not going to argue with you or do math equations.. This is a real world example of what happened to me..

The thing is though that you have 550hp and the OP and others here are still n/a only making 270-315hp so the 4.10s help my car no matter what speed I'm at. Yes 4th gear tops out around 125 but I don't have the need to any faster then that. If I had 400hp+ I would def step back down to 3.55s-3.73s.

 

[98 Saleen Cobra]

ahh then yes.. For a N/A it may be different.. For me I was simply not in gear long enough to use my hp and then I had to shift.. I see what you're saying though. :beer:

 

[Bmeagher]

2.73's? Really. I thought they came with 3.27's

 

[DVJ38]

This logic is flawed. For example, when you're in fourth (1:1) with 4.30's your final drive is 4.30. In third (1.33) with 2.73's your final drive is 3.63. Therefore, your final drive ratio is actually higher with the 4.30's in fourth vs. the 2.73's in third. Same goes for any of the other gears, just do the math and you'll see for yourself.

I just watched the vids and the only explanation I can think of is the weight shift as mentioned. Even still, I don't understand what happened. Even with the passenger in your car you should have walked the Audi for fun with 4.30's. These cars are dogs with 3.27's, I can't imagine driving with 2.73's but to each their own.

True, I did not do the math. I knew that's what I needed to do though, but thanks for doing it. Interesting. Yes these cars are huge slow dogs with the 2.73s lol but really once you get into the power band it seems to have the same amount of speed, just feels slower since the motor isn't redlining every 2.4 seconds lol. Trust me, I can't wait to get a normal gear in this car.

The thing is though that you have 550hp and the OP and others here are still n/a only making 270-315hp so the 4.10s help my car no matter what speed I'm at. Yes 4th gear tops out around 125 but I don't have the need to any faster then that. If I had 400hp+ I would def step back down to 3.55s-3.73s.

The steep gears are fun for a bit, don't get me wrong. I just think that overall the car will be better with a more normal gear like a 3.73. Plus I plan on supercharging in another year or 1 1/2.. we'll see.

2.73's? Really. I thought they came with 3.27's

They did come with 3.27's. I guess you missed the part in the thread where I said this: "so I just swapped one in from a friends old fox.. ended up having 2.73s" lol

 

[mysicman]

When I was totally stock I did a 70km/h-170ish run with my buddy in his 08'GT/CS. We were dead even until he shifted at 6000 and then I started to pull. Since I put the 4.10's in it seems like he will pull a bit on me if we do a similar run. Now I never did an exact comparison of what gears and final ratios etc we each went through, it just suprised me ( the math explanation makes more sense) :shrug:

What would be interesting would be two identical cars (diffrent gears) with similar drivers at the track for a 1/4 mile and then a highway run. Its hard to compare diffrent cars with different power bands.

Had to do my own math
Edit: Assuming same cars with t45 - ratios 1st(3.37),2nd(1.99),3rd(1.33),4th(1.00)
3.27 final (11.02) (6.51) (4.35) (3.27)
4.10 final (13.81) (8.16) (5.45) (4.10)

So from a dig 4.10's win hands down. From a roll depending on speed and where in power band they fall it is concievable that the 3.27 car would be in 3rd with a final ratio of 4.35 vs the 4.10 car being in fourth with a final drive of 4.10. If the 3.27 car was above 3500rpm and the 4.10 car below then the powerband would also come into play. Under this senario the 3.27 car would pull. Also 5th gear is .67 so the 4.10 car would have a final drive of 2.74 so the 3.27 car would still be pulling as they both shift into the next gear.

Makes sense to me because essentially you are starting a drag race, just at speed and in a higher gear and are stuck with whatever gear and rpm you are at, which is why roll racers are always particular when picking the rolls they race...

 

[DVJ38]

When I was totally stock I did a 70km/h-170ish run with my buddy in his 08'GT/CS. We were dead even until he shifted at 6000 and then I started to pull. Since I put the 4.10's in it seems like he will pull a bit on me if we do a similar run. Now I never did an exact comparison of what gears and final ratios etc we each went through, it just suprised me ( the math explanation makes more sense) :shrug:

What would be interesting would be two identical cars (diffrent gears) with similar drivers at the track for a 1/4 mile and then a highway run. Its hard to compare diffrent cars with different power bands.

Had to do my own math
Edit: Assuming same cars with t45 - ratios 1st(3.37),2nd(1.99),3rd(1.33),4th(1.00)
3.27 final (11.02) (6.51) (4.35) (3.27)
4.10 final (13.81) (8.16) (5.45) (4.10)

So from a dig 4.10's win hands down. From a roll depending on speed and where in power band they fall it is concievable that the 3.27 car would be in 3rd with a final ratio of 4.35 vs the 4.10 car being in fourth with a final drive of 4.10. If the 3.27 car was above 3500rpm and the 4.10 car below then the powerband would also come into play. Under this senario the 3.27 car would pull. Also 5th gear is .67 so the 4.10 car would have a final drive of 2.74 so the 3.27 car would still be pulling as they both shift into the next gear.

Makes sense to me because essentially you are starting a drag race, just at speed and in a higher gear and are stuck with whatever gear and rpm you are at, which is why roll racers are always particular when picking the rolls they race...

lol funny huh? Stock you beat your friend, but with 4.10's he beats you. Even though your car is faster. From a dig it wouldn't be the same.

Btw, with my 2.73's in the rear end and my tranny in first my final ratio is 9.2. This is the ratio I used to start the 40 mph roll race. With my 4.30's in the rear end and my tranny in second the final ratio is 8.55. So the advantage on the hit went to my 2.73's in first.

For the race with the 2.73's I used first, second, and third gears. 40-120 run.
2.73's: first gear - 9.2, second gear - 5.43, third gear - 3.63

For the race with the 4.30's I used second, third, and fourth gears. Same 40-120 run.
4.30's: second gear - 8.55. third gear - 5.72, fourth gear - 4.30

So this way the start of the race should go in the 2.73's favor, but after that the 4.30's should take over. The 4.30's died out though, and the 2.73's wouldn't let him catch me. Sheesh lol, not sure how it makes sense. I may have to run him again with the 2.73 gears but with the camera man in my car. I'm sick of racing him though lol.

 

[Shokker88]

Thanks a lot guys! I finally made up my mind to go with 4.10's in my 95 and now I'm back to being undecided. I hope you guys are happy. ;-)

 

[F8L BYT]

Thanks a lot guys! I finally made up my mind to go with 4.10's in my 95 and now I'm back to being undecided. I hope you guys are happy. ;-)

3.73's are perfect for 5.0 cars trust me I had one and those were by far the best for the track/street

 

[Shokker88]

Maybe I'll go 4.10's in the Lightning and 3.73's in the Cobra. Best of both worlds.:coolman:

 

[DVJ38]

3.73's are perfect for 5.0 cars trust me I had one and those were by far the best for the track/street

F8L BYT? lol

Ya, dont get 4.10s with the 5.0.. 3.73s should keep a shokker happy.

 

[Shokker88]

Ya, now I'm back to thinking I want 3.73's.