Jump to content
The mkiv Supra Owners Club

Gearboxes/Diffs and Speed In Gear


Alex
 Share

Recommended Posts

Well I was a bit bored so using the Quaife Gearbox calc tool I've put together a list of all the main combo's of gearboxes and the speeds attainable by them. Mainly of interest to me was the major differences between the V160 and V161 manual gearboxes...the latter being much better gear (yay) for dragging with uprated power, as you're not in danger of having to switch up to 5th unless you're running silly power...but check out the Auto with the UK Manual Diff - lol how fast!

 

Gearbox:- 2JZ-GTE VVTI V161 6-Spd

Tyre:- Michelin all patterns 235/45 x 17

-------------------------------------------------------------------------------------------

Top Gear gives 27.348 MPH/1000 RPM and a top speed of 191.438 MPH at 7000 RPM

 

Engine speeds in top gear:-

30 MPH = 1097 RPM 40 MPH = 1463 RPM 50 MPH = 1828 RPM 60 MPH = 2194 RPM

70 MPH = 2560 RPM 80 MPH = 2925 RPM 90 MPH = 3291 RPM 100 MPH = 3657 RPM

 

Top Speed in 1 gear = 42.050 MPH

And changes into 2 gear at 4222 RPM dropping 2778 RPM

Top Speed in 2 gear = 69.722 MPH

And changes into 3 gear at 4803 RPM dropping 2197 RPM

Top Speed in 3 gear = 101.620 MPH

And changes into 4 gear at 5474 RPM dropping 1526 RPM

Top Speed in 4 gear = 129.955 MPH

And changes into 5 gear at 5809 RPM dropping 1191 RPM

Top Speed in 5 gear = 156.596 MPH

And changes into 6 gear at 5726 RPM dropping 1274 RPM

Top Speed in 6 gear = 191.438 MPH

******************************************************************************************

Gearbox:- 2JZ-GTE V160 6-Spd

Tyre:- Michelin all patterns 235/45 x 17

-------------------------------------------------------------------------------------------

Top Gear gives 28.210 MPH/1000 RPM and a top speed of 197.473 MPH at 7000 RPM

 

Engine speeds in top gear:-

30 MPH = 1063 RPM 40 MPH = 1418 RPM 50 MPH = 1772 RPM 60 MPH = 2127 RPM

70 MPH = 2481 RPM 80 MPH = 2836 RPM 90 MPH = 3190 RPM 100 MPH = 3545 RPM

 

Top Speed in 1 gear = 40.919 MPH

And changes into 2 gear at 4317 RPM dropping 2683 RPM

Top Speed in 2 gear = 66.354 MPH

And changes into 3 gear at 4998 RPM dropping 2002 RPM

Top Speed in 3 gear = 92.935 MPH

And changes into 4 gear at 5450 RPM dropping 1550 RPM

Top Speed in 4 gear = 119.357 MPH

And changes into 5 gear at 5335 RPM dropping 1665 RPM

Top Speed in 5 gear = 156.596 MPH

And changes into 6 gear at 5551 RPM dropping 1449 RPM

Top Speed in 6 gear = 197.473 MPH

******************************************************************************************

Gearbox:- 2JZ-GE (NA) W58 5-Spd

Tyre:- Michelin all patterns 235/45 x 17

-------------------------------------------------------------------------------------------

Top Gear gives 22.854 MPH/1000 RPM and a top speed of 159.976 MPH at 7000 RPM

 

Engine speeds in top gear:-

30 MPH = 1313 RPM 40 MPH = 1750 RPM 50 MPH = 2188 RPM 60 MPH = 2625 RPM

70 MPH = 3063 RPM 80 MPH = 3501 RPM 90 MPH = 3938 RPM 100 MPH = 4376 RPM

 

Top Speed in 1 gear = 38.131 MPH

And changes into 2 gear at 4036 RPM dropping 2964 RPM

Top Speed in 2 gear = 66.136 MPH

And changes into 3 gear at 4712 RPM dropping 2288 RPM

Top Speed in 3 gear = 98.244 MPH

And changes into 4 gear at 5490 RPM dropping 1510 RPM

Top Speed in 4 gear = 125.261 MPH

And changes into 5 gear at 5481 RPM dropping 1519 RPM

Top Speed in 5 gear = 159.976 MPH

******************************************************************************************

Gearbox:- 2JZ-GTE AUTO 4-spd

Tyre:- Michelin all patterns 235/45 x 17

-------------------------------------------------------------------------------------------

Top Gear gives 27.497 MPH/1000 RPM and a top speed of 192.478 MPH at 7000 RPM

 

Engine speeds in top gear:-

30 MPH = 1091 RPM 40 MPH = 1455 RPM 50 MPH = 1818 RPM 60 MPH = 2182 RPM

70 MPH = 2546 RPM 80 MPH = 2909 RPM 90 MPH = 3273 RPM 100 MPH = 3637 RPM

 

Top Speed in 1 gear = 48.394 MPH

And changes into 2 gear at 3822 RPM dropping 3178 RPM

Top Speed in 2 gear = 88.633 MPH

And changes into 3 gear at 4572 RPM dropping 2428 RPM

Top Speed in 3 gear = 135.697 MPH

And changes into 4 gear at 4935 RPM dropping 2065 RPM

Top Speed in 4 gear = 192.478 MPH

******************************************************************************************

Gearbox:- 2JZ-GE (NA) AUTO 4-Spd

Tyre:- Michelin all patterns 235/45 x 17

-------------------------------------------------------------------------------------------

Top Gear gives 25.382 MPH/1000 RPM and a top speed of 177.676 MPH at 7000 RPM

 

Engine speeds in top gear:-

30 MPH = 1182 RPM 40 MPH = 1576 RPM 50 MPH = 1970 RPM 60 MPH = 2364 RPM

70 MPH = 2758 RPM 80 MPH = 3152 RPM 90 MPH = 3546 RPM 100 MPH = 3940 RPM

 

Top Speed in 1 gear = 44.672 MPH

And changes into 2 gear at 3822 RPM dropping 3178 RPM

Top Speed in 2 gear = 81.817 MPH

And changes into 3 gear at 4572 RPM dropping 2428 RPM

Top Speed in 3 gear = 125.261 MPH

And changes into 4 gear at 4935 RPM dropping 2065 RPM

Top Speed in 4 gear = 177.676 MPH

******************************************************************************************

Gearbox:- 2JZ-GTE VVTI V161 6-Spd w/UK DIFF

Tyre:- Michelin all patterns 235/45 x 17

-------------------------------------------------------------------------------------------

Top Gear gives 28.509 MPH/1000 RPM and a top speed of 199.564 MPH at 7000 RPM

 

Engine speeds in top gear:-

30 MPH = 1052 RPM 40 MPH = 1403 RPM 50 MPH = 1754 RPM 60 MPH = 2105 RPM

70 MPH = 2455 RPM 80 MPH = 2806 RPM 90 MPH = 3157 RPM 100 MPH = 3508 RPM

 

Top Speed in 1 gear = 43.836 MPH

And changes into 2 gear at 4222 RPM dropping 2778 RPM

Top Speed in 2 gear = 72.682 MPH

And changes into 3 gear at 4803 RPM dropping 2197 RPM

Top Speed in 3 gear = 105.934 MPH

And changes into 4 gear at 5474 RPM dropping 1526 RPM

Top Speed in 4 gear = 135.472 MPH

And changes into 5 gear at 5809 RPM dropping 1191 RPM

Top Speed in 5 gear = 163.244 MPH

And changes into 6 gear at 5726 RPM dropping 1274 RPM

Top Speed in 6 gear = 199.564 MPH

******************************************************************************************

Gearbox:- 2JZ-GTE V160 6-Spd w/UK DIFF

Tyre:- Michelin all patterns 235/45 x 17

-------------------------------------------------------------------------------------------

Top Gear gives 29.408 MPH/1000 RPM and a top speed of 205.856 MPH at 7000 RPM

 

Engine speeds in top gear:-

30 MPH = 1020 RPM 40 MPH = 1360 RPM 50 MPH = 1700 RPM 60 MPH = 2040 RPM

70 MPH = 2380 RPM 80 MPH = 2720 RPM 90 MPH = 3060 RPM 100 MPH = 3400 RPM

 

Top Speed in 1 gear = 42.656 MPH

And changes into 2 gear at 4317 RPM dropping 2683 RPM

Top Speed in 2 gear = 69.171 MPH

And changes into 3 gear at 4998 RPM dropping 2002 RPM

Top Speed in 3 gear = 96.880 MPH

And changes into 4 gear at 5450 RPM dropping 1550 RPM

Top Speed in 4 gear = 124.424 MPH

And changes into 5 gear at 5335 RPM dropping 1665 RPM

Top Speed in 5 gear = 163.244 MPH

And changes into 6 gear at 5551 RPM dropping 1449 RPM

Top Speed in 6 gear = 205.856 MPH

******************************************************************************************

Gearbox:- 2JZ-GTE AUTO 4-spd w/UK MANUAL DIFF

Tyre:- Michelin all patterns 235/45 x 17

-------------------------------------------------------------------------------------------

Top Gear gives 33.079 MPH/1000 RPM and a top speed of 231.551 MPH at 7000 RPM

 

Engine speeds in top gear:-

30 MPH = 907 RPM 40 MPH = 1209 RPM 50 MPH = 1512 RPM 60 MPH = 1814 RPM

70 MPH = 2116 RPM 80 MPH = 2418 RPM 90 MPH = 2721 RPM 100 MPH = 3023 RPM

 

Top Speed in 1 gear = 58.218 MPH

And changes into 2 gear at 3822 RPM dropping 3178 RPM

Top Speed in 2 gear = 106.625 MPH

And changes into 3 gear at 4572 RPM dropping 2428 RPM

Top Speed in 3 gear = 163.244 MPH

And changes into 4 gear at 4935 RPM dropping 2065 RPM

Top Speed in 4 gear = 231.551 MPH

******************************************************************************************

Gearbox:- 2JZ-GTE AUTO 4-spd w/JAP MANUAL DIFF

Tyre:- Michelin all patterns 235/45 x 17

-------------------------------------------------------------------------------------------

Top Gear gives 31.732 MPH/1000 RPM and a top speed of 222.122 MPH at 7000 RPM

 

Engine speeds in top gear:-

30 MPH = 945 RPM 40 MPH = 1261 RPM 50 MPH = 1576 RPM 60 MPH = 1891 RPM

70 MPH = 2206 RPM 80 MPH = 2521 RPM 90 MPH = 2836 RPM 100 MPH = 3151 RPM

 

Top Speed in 1 gear = 55.847 MPH

And changes into 2 gear at 3822 RPM dropping 3178 RPM

Top Speed in 2 gear = 102.283 MPH

And changes into 3 gear at 4572 RPM dropping 2428 RPM

Top Speed in 3 gear = 156.596 MPH

And changes into 4 gear at 4935 RPM dropping 2065 RPM

Top Speed in 4 gear = 222.122 MPH

******************************************************************************************

Link to comment
Share on other sites

nice post. what would a jap auto with a uk auto lsd work out to?

 

wasnt there 2 types of auto?

i thought there was only the a340

if i remember the uk spare box i have is called a a341 or something. i got told buy the guy who fitted mine that a speed sensor has 17 or 18 notches and was slightly different.

will have a look at gearbox model number when i go look at spare uk box. who you work out the speed ratings of diffs and boxes.

 

thanks

Link to comment
Share on other sites

Mark, The auto was only listed where I was looking for info with 1 spec of diff, if you can find info to correct that I'll add it in :)

 

I just need the Diff Ratio if it's different on the UK Auto.

 

Glad you liked my moment of boredom lol

Link to comment
Share on other sites

Easy to find out.

If someone with a UK auto and a GPS unit would be kind enough to find themselves a motorway and turn OFF overdrive, then sit at 3000rpm, and monitor the speed with a good GPS unit. (take the speed reading about 10 seconds after a constant 3000 rpm at allow the GPS to keep up)

 

My old JDM auto was 56/57 mph @ 3krpm.

 

Yes Mig, I believe you are reading that correctly. But even the JDM manual diff gives a more than respectable top speed coupled to an auto box! :eek:

Link to comment
Share on other sites

  • 1 year later...

Will do mate,

 

Worried about my speedo being a mile out though.

Different diff and running 19's will screw it up completely

 

Not sure if the reading will read faster than actual speed or read slower than actual speed. :confused:

 

When do you plan to do yours?

What stall will you run?

What size turbo are you using?

Link to comment
Share on other sites

Gearbox:- 2JZ-GTE VVTI V161 6-Spd

Tyre:- Michelin all patterns 235/45 x 17

 

Gearbox:- 2JZ-GTE V160 6-Spd

Tyre:- Michelin all patterns 235/45 x 17

 

 

Gearbox:- 2JZ-GTE AUTO 4-spd

Tyre:- Michelin all patterns 235/45 x 17

Why 235/45/17 ? Isn't the stock rear tyre size 255/40/17 ?

 

255/40/17 = 1997.42mm circumference

235/45/17 = 2020.98mm circumference

Link to comment
Share on other sites

Looks like the 200mph Lucifer project could be very interesting.

 

Is there any way to work out theoretical acceleration rates by using various gear box diff combos. Top speed is one thing but getting to road useable speeds quicker than everyone else is more fun.

 

 

Well said... I can do with all teh help I can get!

Link to comment
Share on other sites

Looks like the 200mph Lucifer project could be very interesting.

 

Is there any way to work out theoretical acceleration rates by using various gear box diff combos. Top speed is one thing but getting to road useable speeds quicker than everyone else is more fun.

 

 

Probably not....well not without a very complicated calculation taking into affect the air resistance/drag and the problems of tyre slip etc.

 

I think only real world tests can show which combo is faster.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue. You might also be interested in our Guidelines, Privacy Policy and Terms of Use.