Driving a car with a sequential box for the first time

[madda]

Hi all,

All being well I will be picking up my first car running a sequential box (Quaife 26z 5 speed dog box with no flat shift) on the weekend and I was wondering what advice you have for treating it nice on the 125 mile A-road trip home?

I have no clue what will put it at risk and how to treat it nice. Do I use the clutch and treat it like a normal box?

I do ride sports bikes and do plenty of track time other cars if that is relevant?

Thanks

[NuisanceFactor]

madda said:

Do I use the clutch and treat it like a normal box?

I had a 6-speed sequential on loan for a while and as a way to reduce the pressure shocks on the drivetrain I found it best to use about 25% of normal clutch travel when changing up and about 75% going down. Ultimately, with practice, you will find what's best for you and your car, hope you have a lot of fun.

[Johno]

Up - no clutch
Down - clutch

The boxes are designed to be used positively, don't fanny about and don't use the clutch on the way up. Just apply pressure to the lever and then when you're ready to change up, lift off the accelerator. The break in torque to the drive train will allow it to slot into place.

Downshifts, clutched, similar to above, but with clutch obviously ...

There again, mines used on track only

[James.S]

earplugs......

[James.S]

earplugs......

[rort1]

eh......what?

[sjmmarsh]

EARPLUGS!

[Farlig]

http://www.hewland.com/svga/advice.html

[sfaulds]

With an old Quaife like that, shifting slowly and carefully would be my advice. They're pretty horrible devices - basically a type 9 with a nasty selector conversion to make them sequential.

[Farlig]

sfaulds said:

With an old Quaife like that, shifting slowly and carefully would be my advice. They're pretty horrible devices - basically a type 9 with a nasty selector conversion to make them sequential.

Nasty selector may be so, can´t comment myself, but a dog engagement is a dog engagement, not a fine tooth/synchro mesh. Slow shifting a non synchro dog box makes for some horrendous nasty banging & crunching...

[BertBert]

I can't imagine that a crunchy sequential box in a 7 on the road to be any fun at all!