First Shelby GT350 in the 11's quarter-mile (11.96 @ 116 MPH)

[9secondko]

So far they're hanging in there and we were launching at 6-7k

That's awesome.

Thank you much for sharing.

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[Voodooo]

Well with no other gear options out there only time will tell. But from what I've seen I would say yes it could use a different gear.

What rpm were you crossing the traps at?

 

[Grimace427]

What rpm were you crossing the traps at?

With their 325/30/19 drag radial and a 120-122mph trap speed I calculated 7,000-7,100rpm at the stripe in 4th gear.


With a 4.10 rear gear they would have been between 7,700-7,800rpm at the same mph, or a maximum of 128mph before having to shift into 5th gear.

 

[Voodooo]

With their 325/30/19 drag radial and a 120-122mph trap speed I calculated 7,000-7,100rpm at the stripe in 4th gear.


With a 4.10 rear gear they would have been between 7,700-7,800rpm at the same mph, or a maximum of 128mph before having to shift into 5th gear.

You can't go by what they went at the higher mph. the 11.96 run was @ 116 mph. The 122 mph was spinning.

 

[krt22]

You can't go by what they went at the higher mph. the 11.96 run was @ 116 mph. The 122 mph was spinning.

What does spinning off the line have to do with anything?

At 116, engine speed would be around 6750.

 

[Voodooo]

What does spinning off the line have to do with anything?

At 116, engine speed would be around 6750.

Because the higher mph at the 12 second et shows he was spinning is what I mean.

 

[Grimace427]

You can't go by what they went at the higher mph. the 11.96 run was @ 116 mph. The 122 mph was spinning.

Because the higher mph at the 12 second et shows he was spinning is what I mean.

That is irrelevant. At a trap speed of 120-122mph the engine will be spinning around 7,000-7,200rpm.

 

[Voodooo]

Well no kidding. What I am saying is that if a bigger gear was available it would cross at its shift rpm.

 

[Grimace427]

Well no kidding. What I am saying is that if a bigger gear was available it would cross at its shift rpm.

I posted the calculated RPM with a 4.10 gear in my prior post.

 

[Voodooo]

I said the samething about gearing many post ago.

 

[Grimace427]

I said the samething about gearing many post ago.

You asked a question which I answered. Is there something else you are confused about?


This is the calculator I used if you want to play around with gear ratios yourself.

http://www.f-body.org/gears/

 

[Voodooo]

You asked a question which I answered. Is there something else you are confused about?


This is the calculator I used if you want to play around with gear ratios yourself.

http://www.f-body.org/gears/

Well being that I probably have more gear installs and drag racing experience then you how may I help you? And being that you weren't the driver of the car at the time of the race your calculations mean nothing to me. Besides I didn't know you were rob@evolution

 

[krt22]

Well being that I probably have more gear installs and drag racing experience then you how may I help you? And being that you weren't the driver of the car at the time of the race your calculations mean nothing to me. Besides I didn't know you were rob@evolution

lol what are you talking about. Experience and gear installs and blah blah blah doesnt mean anything when it comes to mechanical gear ratios, there is no rocket science or tom foolery involved. You asked a question, and were given an answer based on the facts. If you know the ground speed, rear tire diameter, rear gear ratio, and transmission gear ratio, you can arrive at engine RPM. All of the above data is published in the GT350 manual.

Imaginary rear gear sets at this point dont even matter, since they don't have any that fit the rear diff

 

[wilkinda65]

man there is a bunch of cock-swashbuckling going on in here.....

 

[robb]

350 lacks low end torque, I highly doubt it.

That's the long 1st you see.


Sent from my iPhone using Tapatalk

Hmm, it has more torque and hp than a GT with a the 302, and mine will light up the track in 1st. It sure sounds like 2nd gear to me but I could be wrong.

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