Gear ratios

[cobraownr]

I need to do a quickie rpm vs. speed cheat sheet to match the new 315/30-20 tires I put on SEMA (GTX1) rims. I know the final drive ratio in the transaxle is 3.36:1, and 5th gear is 0.77:1. I haven't been able to find the ratio for 4th gear, or 6th. Can anyone help?

Thanks!

 

[dbk]

 

[dbk]

And ze ratios:

2.61:1, 1.71:1, 1.23:1, 0.94:1, 0.77:1, 0.63:1

 

[Fast Freddy]

i see that 4th gear is a .94:1 ratio. i can't remember if that will make your dyno reading high or low? does anybody remember?

 

[cobraownr]

Thanks, fellas, this is just the info I was looking for. Red Thunder (GTX1 No. 2) will be a bit conspicuous on the NJ Turnpike tomorrow on my way up from Maryland to GT Joey's shindig on Long Island. I didn't want to give the Mounties an easy opportunity to issue a speeding ticket by relying on a speedometer that will not be reading correctly because of the non-stock size rear tires. I'll do an index card with corrected speeds in 4th, 5th, and 6th per 1000 rpm. Thanx again!