toddk911

I would just like a taller 5th so at normal highway speeds (75mph) I am not crusing at 3,000+ rpm!

toddk911

US/Japan????

1986 944 (ROW) 016J
1986 944 (US/Japan) 016K
1986 944 Turbo 016R

1st Gear
3.6000
3.6000
3.5000

2nd Gear
2.1250
2.1250
2.0588

3rd Gear
1.4583
1.4583
1.4000

4th Gear
1.0714
1.0714
1.0345

5th Gear
0.8286
0.7297
0.8286

Reverse Gear
3.5000
3.5000
3.5000

Final Drive Ratio
3.8890
3.8890
3.3750

toddk911

http://www.catherineandken.co.uk/sti/tyres.html

ross255

Wow, I just used that calculator, and if you fitted the (US/Japan) 016K 5th gear, then you get 30mph for every 1k revs, 210mph at 7k

nitehawk951

wakiewes, please change your avatar, it looks like a revenge of the nerds christmas special, and she looks unhappy. DFASTEST951, never ever change your avatar. And I have a question, who built your 16 valve for you?

RolexNJ

Since you are new here, you obviously don't know who built Joe's (Defastest951) car. It was built by Powerhaus years ago, and it's a fast and stunning car too!

Here is info on --> Joe's Car

nitehawk951

OMG, I knew I recognized that car! It was featured in the May 04' issue of European Car magazine, that is my dream 951 with the absolute perfect set up. The only thing for me was that it was an 86'. I remember this car had like 480 whp. Yes, Rolex that car is the *$%^. Ahhh, and didnt that car sell at an auction and the proceeds went to some kind of charity? I will look for the mag, you never throw a story like that away. Thanks for the info Rolex. Again, great avatar to Dfastest951.

sweanders

With which tire sizes? Could you provide the math?

Oddjob

Im going to take a guess that he made the calcs using the US 944 N/A 0.730 5th gear with a Turbo 3.375 R/P - thats about 211 mph @ 7100 rpm with standard OD tires (approx 24.5" OD).....

ross255

Yep, use a US na 5th in a turbo box.

follow the link todd posted and use the calculator