PROS AND CONS OF 6SPEED ON A CLASSIC
 

I HAVE A PROBLEM WITH MY 5SPEED BOX ON MY JDM VERSION 5 STI WAGON ( THRUST IDELR BEARING I THINK ).

THINK INSTEAD OF FIXING IM JUST GONNA GO 6 SPEED

WHAT ARE THE PROS AND CONS OF GOING 6SPEED.

ALL INFO GREATLY APRECIATED

CHEERS

I loved the 6 speed in my old p1 and in my old sti 5, had the UK and a jdm box and personally didnt find much in it. They are pretty much bullet proof from what my limited knowledge goes, not heard of on breaking compared to the other choices. There are people running 500+ of each with no issues imo do a job once and do it right, drop a 6 speed in it and forget it

what is the difference between a uk and jdm 6 speed box

Yes would also like to know this and the difference between the r160 and r 180 diffs ???

R180 are 'stronger' and only fit R180 rear hubs, R160 are smaller/weaker and only fit with R160 rear hubs!

There are also different kinds of each e.g Helical/LSD which require different drive shafts!

JDM Boxes have even closer ratios and a lower 6th (lower than a UK 5 speed 5th).

Its actually higher but not by much (167v 171ish)

Tony:)

JDM boxes have a lower 5th and 6th gear compared to a UK six speed.

dunx

P.S. The gap on the UK box from 4th to 5th is just a bit too great. IMHO.

thanks for all the info i think im gonna go JDM 6speed

how much am i looking at for a full conversion on a classic? and can a 230mm clutch be used with it or do i need all new

the biggest difference is the ratios between a 5 and 6 speed, personaly i prefer the 5 speed ratios.

My JDM 6 speed is at 3500rpm at Motorway cruising speed, the UK 5 speed was more like 3000

is there much difference in the way the car will accelerate with a 6speed and whats the difference in top end between both boxes

im unning 6 speed in my p1 and my gear ratios are pretty much same as my 5 speed was for some reason, althopugh weni had the same box in my uk turbo they were much shorter! sounds weird i know, anyway 1 con would be it weighs ur car down and defo slows it down, big pro is the reliabilty

i found a massive difference, i drive my own 5 speed ppg, and my dads 6 speed sti 7 regularly and i hate the ratios ont eh 7, i find im always running out of revs

JDM 6 speed has a slightly stronger teeth on the 5th & 6th than UK 6 speed IIRC.

my classic with a JDM 6MT with 6th @ 4000revs makes exactly 148 km/h
a european 6MT would make 165+

But I love the short gear ratios so much....