Which 1st gear ratio is best in a T56 Magnum 6-speed?

[cobrajeff96]

XL is intended for the S197 chassis.

 

[white95]

What's the difference in the Magnum and Magnum XL?

For those hard to reach places

 

[Daryl]

What's the difference in the Magnum and Magnum XL?

Beats me! Anyone know???

 

[Daryl]

I just got off the phone with Wade @ Silver Spirt Transmission in TN, where I got my TKX. Here’s what he said about the T56 Magnum vs the Magnum XL:

Casings are the same.
XL’s shifter is a little further back to fit the 2012 and newer Mustangs.
XL’s can handle more HP (mostly because of the Coyote).
Input shafts are the same.

He also said anyone can go to their website and visually compare what they look like.

Hope this helps…

 

[ttocs]

that is where I got mine from, might have even been wade if IIRC but it has been a year or two. They were great and I have nothing bad to say about them

 

[Musturd]

you not liking the tkx ? I love mine

 

[Daryl]

Here are the rpm (OE tach) by speed (GPS). All readings were taken in 5th gear (TKX):

55mph - 1950 to 1975rpm
60mph - 2025rpm +\-
65mph - 2200rpm
75mph - 2600rpm
80mph - 2800rpm

 

[Musturd]

I feel like you have the same tkx as me . 2.87 first gear .68 OD gear ?

 

[Daryl]

I feel like you have the same tkx as me . 2.87 first gear .68 OD gear ?

Yup, I believe so!

TKX Gear Ratios​

Wide Ratio - 3.27, 1.98, 1.34, 1.00, 0.72
Close Ratio - 2.87, 1.89, 1.28, 1.00, 0.68 OR 0.81

 

[Musturd]

Yea mines the close ratio with .68 overdrive makes it wicked of highway but first gears really long .

 

[itsell]

Given my current set up (347 stroker with 3.55 rear gears), how do you decide if a 2.66 1st gear ratio or a 2.97 ratio is best?

I drive a Modern Driveline T5 with the 2.95 first and 3.73 rear. It's a perfect combo i'd say. Multiply the numbers together to get the overall number. with mine that's 11/1 which is pretty much perfect.

I think you'd be happy with the 2.97 and 3.55. Total ratio is 10.47/1
I think the 2.66 first gear ratio would only match up well if you had steeper rear gears, like 4.10. total would be 10.9/1 then.

I'm stating this all in terms of being good on the street. in specific applications, like drag racing some guys might want a really high(numerically) overall first gear depending on tire size.

 

[Musturd]

I drive a Modern Driveline T5 with the 2.95 first and 3.73 rear. It's a perfect combo i'd say. Multiply the numbers together to get the overall number. with mine that's 11/1 which is pretty much perfect.

I think you'd be happy with the 2.97 and 3.55. Total ratio is 10.47/1
I think the 2.66 first gear ratio would only match up well if you had steeper rear gears, like 4.10. total would be 10.9/1 then.

I'm stating this all in terms of being good on the street. in specific applications, like drag racing some guys might want a really high(numerically) overall first gear depending on tire size.

That’s a bc license plate where you from .