Ratio's

This page http://www.panteraplace.com/page32.htm has a neat Excel spreadsheet that gives you all the numbers you are looking for. 4th and 5th are both over, the ZF has no direct.

Mike

quote:

Originally posted by SICK CAT:
Hey all,
This tag is off my Pantera,
It appears I have a 4.22 gear ratio?
5th is .705
4th is .846
3rd is 1.04

5th is a 30% overdrive, am I reading this right?


Mark

You are correct. 4th is OD as well. This is where the torque of the 351 helps. A 289 wouldm't fair as well.

THANKS ALL,

TRYING TO PICK A CAM THAT WILL JETISON THE PANTERA TOWARDS 200MPH AND GIVE A ABRUPT ENTRANCE INTO THE SHOWS (";")

THANKS, MARK

I think that if you look at the chart you will see that you need to spin the engine just a bit to reach 200mph.
Personally I think that one is over the limit with the engine to do so.
Since you are running over 7000 rpm at that point, quite a bit over, you need to build the engine for 8000rpm.
This gets a bit expensive since the engine is really an all out Lemans type race engine at that point.
200 is just a number. There isn't anywhere I'm going that fast, including a race track.
Ofcourse if you are one of the local police and you need to run to Duncan Donuts every three hours, then I totally understand the need.

200 MPH is obtainable with what I have, a quick verification on the freeway showed the engine turning at 3250 rpm at 90 mph, easy math! All subject to accuracy.
Quality balanced parts should have no problem spinning up to 7500rpm, chevy's do it all the time!

And yes 200 mph is not for the faint at heart!


Mark

Phhht!! Going 200 ain't no big deal. I do it all the time. You have to to get off the runway.