jayallen

iTrader: (31)

You've stuck with the 5 speed just to save 30kgs? The strength of the 6 speed far outweighs 30 poxy kgs.

veerinder9

iTrader: (1)

You could remove that 30kgs easily from other areas of the car. Seats being the first one

boosted

I hear this again and again from people who can't afford the 6 speed.
What is the extra bhp required to make the car as fast as it was before it put on 30kg???

boosted

It's ok I have the answer!
5bhp!!!!!! Omfg

bigkid

iTrader: (1)

Who mentioned anything about money?

Carnut

How much is a old second hand 5 speed worth.

I personally (if the 5 speeds not worth much) would run it until it went bang then get the 6 speed.

bigkid

iTrader: (1)

Who mentioned anything about money but by the time you have bought box, prop , mounts ,diff,clutch and flywheel then yes it starts to get expensive oh then tweaking the map for 6 speed, plus my car is a classic ra that's already stripped so 30kg and all the extra inertia of the 6 speed flywheel and clutch why bother unless you really have too? If your smashing boxes then of course you probably better upgrading but pushing near 485/500 and it's still going shows they can take good power?

gpssti4

iTrader: (6)

My 752 box went pop at 290 bhp! So I then dropped in a 6 speed for peace of mind.

RA Dunk

But if someone has already done the seats, air conditioning, sound proofing etc etc then 30 kilo from the gearbox alone is worth having.

RA Dunk

Jesus, your head really is up your own **** is it. Some people just don't want a six speed it's not because they can't afford one you ignoramus.

I went for a PPG kit because I wanted to stay with a five speed box and to save on the 30 kilos, and even bought a spare one (PPG box) which sits in my garage gathering dust.

boosted

I did
And I also scientifically worked out that on a 1400kg newage you only need 5hp to make up the 30kg.
Probably equates to .25degrees of ignition timing, .025 bar of boost or even the difference between a hot and cold day

trevsjwood

iTrader: (2)

the full conversion, that's newage 6spd box, prop,diff, rear shafts/hubs is +40kg.
Trev

boosted

I didn't say you couldn't afford it.
I said "I hear it all the time from people who can't afford it"
You obviously can afford it if you have £6k worth off PPG gearboxes lying about.
PPG wasn't for me, I can't afford it outright.
Plus the noise would do my head in, mines a daily driver.

Ciaran

iTrader: (16)

To summerise the options are.
Stay under 400bhp and your 5 speed will probably be okay
If you want to stay 5 speed and reliable get PPG
If you want the cheapest most straight forward option go 6 speed.
Disregard the 30kg as it's only the difference between
having half a tank or a full tank.

6 speeds have weak synchros

As soon as you modify a car you will find the weakest
point. Often people over look the drivetrain.

An Audi 6 speed box isn't a viable option to 99.9%
of people.

bigkid

iTrader: (1)

That's about right

myblackwrx

iTrader: (1)

Scoobynet has gone down a loooong way recently but then again so has actually owning an Impreza.

I bought a 6 speed DCCD box from a 05 UK car to fit a 1998 Type R.

Garage fitted as I neither have the tools nor skill to fit anything like this.

Gearbox,propshaft,rear diff,front driveshafts,rear driveshafts,gear linkage,gearbox cradle,starter motor.

5 speed clutch is fine (mine is an uprated one, AP iirc)

The gear linkage is very close to the underside of the car so a small amount of tapping was done to make sure there was more space between linkage and car.

Both my 5 speeds started going at just over standard HP although I perhaps wasn't the most sympathetic to them.

I've found very little difference in performance at bottom end when driving spritedly...however top end is sooo much nicer (less engine revs for more speed )

RS_Matt

What are the transmission loss differences between the 5 speed and 6 speeds?

From what I've seen, cars running the 5 speed seem to have a 20% edge in performance. Ergo a 300bhp 5 speed EC can push a 360bhp 6 speed EC.

boosted

Depends on what oil you run, I can safely run thin ATF in my six speed, minimal drag.
What oil can you get away with in a 5 speed? ATF ok?

gpssti4

iTrader: (6)

My Type R has s 6 speed conversion. Rich aka Fiestaboy did it about 7-8 years ago. There were lots of parts from both the 5 speed and 6 speed used. IIRC Rich used 6 speed drive shafts with 5 speed hubs, the prop shaft was from an auto classic as the gearboxes are different lengths.

TypeR99

iTrader: (2)

Interesting info there mate. Chances are if I do end up going 6 speed i'll get a full setup and sell off what I dont need. As you say, I think the hubs will be fine so just swap the box/prop/diff/shafts

edsel

iTrader: (2)

Im currently running a six speed in a 96 sti type RA. The original dccd box had already gone awol while it was in Japan and had been fitted with a non dccd RA box. That box lost 5th gear around 3000 miles after completing an engine rebuild. Driven very hard running 320 bhp.
As an interim repair I had a 5 speed classic uk box and diff fitted. That ran fine and took all the abuse I could throw at it including a track day.
I then had a 6 speed DCCD box, diff and rear hubs from a WR1 fitted, perfect! Low ratios 1-5 and a nice tall 6th gear where I run out of bottle before the car runs out of puff. The only complaint, as mentioned synchros are prone to wear/failure. In my case I now have a crunch changing into sixth when driving hard. The box is coming out again next week.
I looked into getting a PPG box built but couldnt justify the cost and couldn't get straight answers from people selling used ppg regrading ratios, LSD and dccd compatibility .
I think 30kg is a small price to pay for the peace of mind, this year I'm hoping to pull the last 30 horses out of the engine to give me 350. Thats a usable 350 knowing that I have an over engineered engine and transmission. On second thoughts I'd better make that 355bhp to compensate for the 30-40kg

jayallen

iTrader: (31)

What engine is in the car?

edsel

iTrader: (2)

Thought we was discussing gearboxes. Its a Finch built ej20 with a few mods. My constraint is the standard TD05.

TypeR99

iTrader: (2)

Ok so i've decided to run the 5 speed to begin with but will be going 6 speed later in the year.

Question is, what clutch do people recommend for running around the 400 mark? I'm not going to be launching it, just spirited and track driving.

I've heard of a few people running xtd sprung paddle clutches and say theyre ok, others running exedy pink box and comp clutch is another I've heard of.

Fat Boy

AP racing organic 5 speed clutch would be perfect at that level - feels like oem and easily coped with 450bhp/ 380ftlb on mine for 18k+miles and was still fine when it came off. No need for a paddle clutch - they are horrible as a road/traffic clutch.

ScottyPPP

Currently sticking 330+ lbs ft through my 5 speed and it seems fine. Filled with Redline shockproof oil.

If it goes pop, it goes pop. Gets driven hard on the road, not launched though (occasional soft launch).