john banks

When I mean beat the box, I mean clutch down quickly, smoothly and fully, very quick gearchange, then let the clutch out smoothly but briskly. There is no jerking, but you can hear the synchros complain. Well I presume that is what it is. I could do it on my car when it was still running only trivial power and torque - mostly on 3rd to 4th gear probably because there is no dog leg movement. Don't think it is just my car either.

[Edited by john banks - 12/4/2002 2:10:38 PM]

SiPie

Hindsight's a great thing

Is it possible to agree with something 1,000,000 per cent John?

Now what will I do with that spare £1,700? Ah yes Mr Noble, there you go, you have it and I'll take that 2nd hand gearbox in return

[Edited by SiPie - 12/4/2002 3:48:16 PM]

SiPie

Sorry, but if this is directed to my post, I don't recall ever mentioning anything about a quickshift, was more a general gearbox comment re John bank's post

Edited as now realise that probably directed towards Mike555.... d'oh




[Edited by SiPie - 12/6/2002 10:48:30 AM]

JohnD

iTrader: (5)

I've toyed with the idea of a quickshift for my 99my uk ever since I got it new but never got round to it (loads of other things added/changed though!)
Is it worth it and if so which one do you reckon?
Any fitting tips/suggestions?
Cheers all JohnD

T.J

John,

Subaru told me it wasn't worth it on a MY99 Impreza.

Anyone here done it on MY99/00 and if so did it improve speed of gear changing?

Cheers

Tony

[Edited by T.J - 12/1/2002 6:12:42 PM]

[Edited by T.J - 12/1/2002 6:13:21 PM]

SCOSaltire

never not had the QS
i like it.. but then ive not tried one without...
tho i dont try to change gear quickly... i prefer to let the cogs mesh gently if i can

john banks

Without it you can "beat the gearbox" (esp on 3rd to 4th change) and trash your synchros quite easily, especially if you run more power IMHO. Take time over your gearchanges and minimise the work the synchros have to do and your box will probably last a lot better. Fair to say the gearbox is one of the weakest parts of the Subaru design?

Beastie

iTrader: (2)

John
I have a quickshift on my MY99 RB5 and have also tried a 99MY without. There really isnt much difference as the 99MY had a shorter throw anyway.
Best bet is to try a car, but you will ask the question "Is this really a quickshift?"
Probably not worth it unless you want to drop the fact in the pub.
Beastie

ScoobyJawa

I've an MY99 with the Prodrive quickshift and IMHO I think it makes a huge difference. I've also tried cars with the Jap Innovations one and the one Andy T had in his old MY99 (BRD?). The Jap Innovations is not much different to the Prodrive, but the one Andy T - and Plantie(was the same as Andys) - was a very short throw indeed. Never looked back since fitting and can change gear much quicker........

JamesS

00MY fitted a BRD one (NOT cheap!)

Throw is now roughly half that before the swap. Change gear with wrist now! So yes, depending on design, it can make a difference.

LG John

What's this term 'beat the gearbox' I've heard it a few times before but never really understood it. I remember once when I was pushing the VTS I made the 'perfect' change between 3rd and 4th. It was lightening quick and there was almost zero interuption in power delivery....did I beat the box?

JohnD

iTrader: (5)

"Beating the box" means that the synchromesh has not had time, or is not capable of, doing its job of synchronising the speed (rpm) of the engagement dogs, hence you get a crunch!
Hands up - is there anyone out there who still thinks the gears themselves move from one to another? (Gearboxes are "constant mesh")
This is one of my concerns about quikshifts, in that it is simply a change of ratio between hand movement and mechanism movement making the work of the synchro harder (faster engage/disengage for the same hand speed)
Has anyone had any jumping out of gear problem with a quickshift?
JohnD

Matt Churchill

Had a quickshift on my 99 for a couple of years now. Wasn't very sure when I got it whether it was a particularily good use of money, but it is definitely better.

You can tell it is there compared to std 99's.

JD - never had it jumping out of gears though. Always works fine in mine.

Matt

KRIS

Test drove two scoobies back to back ... one with and one without .... IMHO save you money and dont bother. The difference was so minimal. I have crunched the gears a few times whilst driving enthusiastically and the sound is horrible..... so will th bill be if your gearshift jumps through the roof !!!!!!!!!

k

Mike555

Do not take a quickshift. I had one.
After a corner in 4th gear I pushed it back to 3, stamp on the gas, BANG !@$@#$@$ gearbox did not work anymore. Call the car ambulance. After looking in the gearbox, seems that the 3rd gear was totally teethless. It is not worth to try, it goes shorter but it goes tougher. So it will not be quicker

SiPie

Mike 555

The old toothless 3rd gear scenario, mine had plenty of teeth left....it's just they were lying all over the rest of the gearbox



[Edited by SiPie - 12/5/2002 10:02:37 AM]

[Edited by SiPie - 12/5/2002 10:02:54 AM]

JohnD

iTrader: (5)

How did the quickshift have anything to do with stripping gearteeth???
JohnD

JamesS

Indeed!

7 Foot

I have a B&M fitted to my MY00. Fitted it about 6 weeks ago and am thrilled to bits with it. I too read the posts stating that there would be very little difference after installing the B&M but I was quite surprised in the difference it has made. Fitting it was a doddle too and I am quite hopeless.

JohnD

iTrader: (5)

SiPie
The comment re-stripping teeth was in response to Mike555!
Found no problem re-your reply!
JohnD

Mike555

Hi Guys,

Sorry that it takes so long. I tried to explain, but my english is not to well so....
The problem is when the timing. You change gear and give gas, but if the gears aren't matched and you will give gas then the matching of the teeth are for 50%. Then you give plenty of gas and there's goes the gearboxes.
By the way I have to tell you that I only have a shorted steel stick, so not a whole system like the STI. Maybe the sti has not this problem. Here in holland a lot of gearboxes died by, the shortshifter, or + 300 bhp in combination with a stronger clutch.
Last cases is that the clutch was the weakest compare with the gearbox (the clutch slips no big deal), but if you change it to a "better" one the gearboxes become the weakest one. And you know the gearboxes are not the strongest part on the car.

Hope you guys understand

Mike

JohnD

iTrader: (5)

Thanks for all the replies guys - I was confused about the benefits before, now I'm totally confused!! Seems to be a split, with a slight bias in favour?
The thought revived itself after driving my sons STi7 which has a shorter throw than mine. (Daren't suggest anything to do with the car as Chrissy pressie from the wife, I'll get the "you love that thing more than me" look!)
JohnD