3.69 ratio = higher rpm or lower?

[babowc]

sorry for being such a newb..isn't lower ratio = lower rpm?

gonna go buy a 300zxtt vlsd and shafts if it does turn out to be lower rpm at final gear..lmk guys!

[nismofly]

yes

highway cruising will go down like 2 or 300 rpms with that, top speed increases

acceleration gets worse

[babowc]

only affects the final gear though, correct? or does it affect all gears..

[S14tat]

a final drive will effect every single gear.

[nismofly]

the final drive is the rear end

basically, the gear in the transmission is the first reduction, then the final in the rear end is the second reduction

[hannibal]

You can play with the numbers using this calculator...http://webpages.charter.net/kgolden/rear.htm

[nismofly]

^that seems quite innacurate

i enter in my numbers (24.9in tires, 225/50 16; 4.08 rear end; 70 mph for test)

i got 3,850 rpms, i can tell you my car is not at 3,850 at 70 mph, and my tach is not 700 rpms off either

[jr_ss]

Nismo try the one in the wheel FAQ. Here's the link.

http://gs.tolan-hoechst.com/tirecalc.htm

[nismofly]

thats the one i normally use

i guess i couldve put a link to it in my post

[crzycav86]

the 300zxtt rear end doesnt fit anyway. don't buy it, noob.

[nismofly]

oh i didnt even notice what he was getting it out of

yeah that rear end wont work

[babowc]

oh.. hahasorry, im a newbie like that >_<

[McRussellPants]

Nismo sells a 3.69 for the R200.

Your not cool unless you have E*SR's 5.13 Gear.

[hannibal]

^that seems quite innacurate

i enter in my numbers (24.9in tires, 225/50 16; 4.08 rear end; 70 mph for test)

i got 3,850 rpms, i can tell you my car is not at 3,850 at 70 mph, and my tach is not 700 rpms off either

At first, I thought so too, but then I realized you have to tell it what gear your in.

Your overall ratio is 4.083 (rear end) x 0.759 (5th gear) = 3.099. The calc says 2900rpm, which sounds about right