Clutchless changes - good idea?

Clutchless changes - good idea?

Author
Discussion

gridgway

Original Poster:

1,001 posts

251 months

Friday 8th September 2006
quotequote all
when I drive my clubsport, I always use the clutch both up and down the box. A good friend of mine (and a far better driver than me) suggested that clutchless up-changes are perfectly ok and a good thing to do.

Does anyone have any views on whether it's a good idea or whether it has a gearbox-breakingly bad affect?

Thanks
Graham

AndrewD

7,582 posts

290 months

Friday 8th September 2006
quotequote all
Been doing it on my sr3, no problem at all

PhilboSE

4,679 posts

232 months

Friday 8th September 2006
quotequote all
I read your post a couple of times Graham to make sure you had the emphasis on *up* changes!

I was told by a gearbox designer that the best/least stressful way of changing up on a sequential box was to do exactly that i.e. no clutch. The way it was described to me was to judge the revs correctly, pull back slightly on the lever and when the pre-loading was right then a slight lift on the accelerator would cause the upchange to click home. Must admit I'm not at that stage of competence yet...

RobC

967 posts

290 months

Saturday 9th September 2006
quotequote all
Not recommended to change down the box with no clutch unless you have a padle shift system that blips the throttle during the downshift. You have a lot more control of the car using the clutch on a downshift imho. Upshifts as mentioned above are fine, its a straight cut gearbox so long as follow the method above it'll be fine.

Kiwi XTR2

2,693 posts

238 months

Saturday 9th September 2006
quotequote all
Used the same technique in my XTR2 before upgrading to the ProShift.

Light Pressure is all that is required . . . no Gorilla force necessary. hehe

gridgway

Original Poster:

1,001 posts

251 months

Sunday 10th September 2006
quotequote all
great, thanks guys, will be trying out on tues at Brands.
Graham

gridgway

Original Poster:

1,001 posts

251 months

Wednesday 13th September 2006
quotequote all
had a great day yesterday, first time on the GP circuit...fab fun. Clutchless up changes work a treat!
Graham