MJ201

what is the closest ratio gear box that will fit into a S13? i was lookin at the stock ones but i want one strickly for racing?

any thoughts?

rudeboy

i dont know of a short gear box for the S13...or S14 off hand. but if i were you i would just alter the final gear ratio with a diffrent ring and pinion set. this will give you the fast acceleration....or higher top speed( if you please)

i have a 3.917 R&P Set for higher top speed

I'm with Stupid

Why not just get a S15 tranny? The only other choice I can think of is a Nismo tranny.

MJ201

how much shorter is the S15 or the NISMO one?
i'm looking for more acceleration

rudeboy

the Niamo joint is probaly more then the SR clip.
change the LSD ring and pinion and you will get acceleration....period

dont waste money on all that. the diffrential ring grar will effectivly give you the same acceleration properties as the tranny. plus with more HP your car will blaze the rev range like crazy....

trust me i know

http://www.courtesyparts.com/Merchan...de=38100-00005

i just got one to give me more high speed. so i can switch in either my high speed LSD or my drift LSD

rudeboy

i found sumthing for you earlier


OS Giken transmission gear set
Close ratio gears for circuit racing. Ratios available:
1st gear = 2.717 2nd gear = 1.722 3rd gear = 1.232
1st gear = 2.717 2nd gear = 1.722 3rd gear = 1.232 5th gear = 0.805/0.835
1st gear = 2.926 2nd gear = 1.902 3rd gear = 1.232 5th gear = 0.805/0.835
Also available with a strengthened input and/or main shaft.

http://splparts.com/Silvia/Drivetrain/Transmission.asp

NiSmO Knight

iTrader: (1)

would changing the gear ratio improve shifting reaction time in a drift setting? (i.e. while in the middle of a drift?)

rudeboy

no, changing the gear ratios would make his tires turn faster...thus making his car accelerate/go through the rev-range quicker....

it'll aslo mess up his speedo..but only by a few %

Spec240sx

Shifting TIME between gears is not part of the Gear Ratio aspect.
A short shift Kit which lessens the distance of the Shifter THROW is what you speak of.
The Tranny gearing will only increase rpm to Speed times. What Has been done, is to get the 4th gear sprocket from an early Nissan P-up and put it in to raise the rpm level AND shorten the Speed range. I honestly do not remember what year it was pulled from.

rudeboy

that sounds like a cool trick

Wes

OK, well what about the post in the FAQ section of ********** about changing to the 4.6 gear ratio? I just found this last night so I haven't had time to get some research done on it yet, but if anyone has any info please post it up...

NiSmO Knight

iTrader: (1)

My bad my bad... I meant the reaction time of the gears, will it help me rev up RPM quicker in the midst of a drift?

but wut u guys jus said... it should rite?

rudeboy

yep, that's the idea..getting the engine speed quicker..

NiSmO Knight

iTrader: (1)

icic... how much is the kit for a red top SR20???

rudeboy

what kit?
the diff in the rear(duh...) is the same as JDM....so you can go either way....

peep previous post to see page with parts