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when slowing down from high rpm you brake with your big toe, blip the throttle with the little toe and down shift, you basically match the engine rpm to the box rpm of the lower gear = smooth seamless downshift
compared to the average person's down shift of clutch in, down a gear, clutch up = MASSIVE JERK = stress on the box etc etc
hard to explain, google and youtube
compared to the average person's down shift of clutch in, down a gear, clutch up = MASSIVE JERK = stress on the box etc etc
hard to explain, google and youtube
I brake with my toes and blip with my heel.
Has helped with my gearbox, its not gona fix it but its certantly helped and as said sounds wicked when blipping.
Has helped with my gearbox, its not gona fix it but its certantly helped and as said sounds wicked when blipping.
RS RIP
yeh this is the way i've always done it, only i want to be able to do the real heal-toe thing
ClioSport 172 Cup
Lol, has anyone actually had a read of the Renault Manual that came with the Cliosport?..I was reading it the other day as I was very bored. There is a section in it that actually says Blipping the throttle when shifting has no benefit to the gear box as it incorporates synchros. Basically its a waste of time on a synchro box because it does not benefit the synchros in any way, the best gear change technique for a synchro box is just a smooth steady gear change. Synchro boxes are sometimes called slow change boxes for that very reason.
ClioSport 172 Cup
ok my mistake it doesnt actually mention the synchro specifically. It simply says Double declutching are superfluous actions in modern cars. page 2.07, last paragraph of the driving section.
RS RIP
hahah good find !! well i do''nt have to practice then i guess + just forget about it
***edit*** double declutching is not really the same as the blipping the throttle ; keeping revs up to match the next gear is what it's about. Think the synchros will benefit i think
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Apart from "heel and toe" and "Double declutching" are two entirely seperate techniques. The former is of great use on any synchro box to ease loads on the synchros and retain car balance during a downchange. The latter is used for boxes with no synchromesh i.e. crash type boxes to allow a smooth change by ensuring the speeds match for reengagement of the dogs.
In short if you can't heel and toe your missing out on a pretty huge aspect of driving!
Cheers
M
In short if you can't heel and toe your missing out on a pretty huge aspect of driving!
Cheers
M
@fred/icarus
sometimes I have a problem putting it into first, usually untill the car warms up a bit. IT's not that it won't go in, but you have to do a strange karate move to get it nudge.
Really anoyed me these last few days, the traffic light goes green and I'm in the car doing naughty moves with my hand, someone could think I'm playing :clown:
Normal characteristics of the car? :boring:
oh and btw, car's done 13.000 miles
sometimes I have a problem putting it into first, usually untill the car warms up a bit. IT's not that it won't go in, but you have to do a strange karate move to get it nudge.
Really anoyed me these last few days, the traffic light goes green and I'm in the car doing naughty moves with my hand, someone could think I'm playing :clown:
Normal characteristics of the car? :boring:
oh and btw, car's done 13.000 miles
I have the same problem as Adam we were discussing it last night.
One thing Adam forgot to put in...
We both experience the kind of crunch 2nd to 3rd after we have been driving hard for a few minutes NOT straight away.. for example i can do the same piece of road 5 times as it goes round in a loop, change at the same point everytime, but only after 5 - 6 times will it start to crunch slightly...
Surely this points to gearbox oil ?
Thanks
Oh and i constantly heel / toe etc
One thing Adam forgot to put in...
We both experience the kind of crunch 2nd to 3rd after we have been driving hard for a few minutes NOT straight away.. for example i can do the same piece of road 5 times as it goes round in a loop, change at the same point everytime, but only after 5 - 6 times will it start to crunch slightly...
Surely this points to gearbox oil ?
Thanks
Oh and i constantly heel / toe etc
similar to mine. Firstfew miles of driving, while engine is cold, it doesnt crunch at all. When engine is up to temp, it will then crunch into 3rd?
The gearbox on the Clio is splash lubricated - it's not an F1 car ;-)
It's going to be a weak synchro. The viscosity of the oil will change as it gets hotter leading to the problem being noticeable but the base cause is a weak synchro.
Stick some different oil in it and you might get it to go a bit longer, or just double declutch and not worry about synchros at all.
Cheers
M
It's going to be a weak synchro. The viscosity of the oil will change as it gets hotter leading to the problem being noticeable but the base cause is a weak synchro.
Stick some different oil in it and you might get it to go a bit longer, or just double declutch and not worry about synchros at all.
Cheers
M
I find my gearbox is worse with double declutching, feels alot more notchy for some reason. I also had a play with two types of oil. One was Elf 75/90. The third gear seemed more stiff to get in on down change. All other gears ok, although 5th slightly heavier to put in. Changed the oil again to Castrol EPX 75/80 from opieopils, and the third gear synchro is smooth as ever, on both up and down changes, and the 5th gear is alot lighter to move. This is for both when hot and cold.
Im not arguing that this is oil related or syncho related, but from the oils ive used ive found the castrol 75/80 made a big difference in regards to changing gears.
Im not arguing that this is oil related or syncho related, but from the oils ive used ive found the castrol 75/80 made a big difference in regards to changing gears.
@fred/icarus
sometimes I have a problem putting it into first, usually untill the car warms up a bit. IT's not that it won't go in, but you have to do a strange karate move to get it nudge.
Really anoyed me these last few days, the traffic light goes green and I'm in the car doing naughty moves with my hand, someone could think I'm playing :clown:
Normal characteristics of the car? :boring:
oh and btw, car's done 13.000 miles
bump
Its not an easy thing to explain really, kinda like different slipiness grades/additives etc.. Have a read
http://en.wikipedia.org/wiki/Gear_oil
http://en.wikipedia.org/wiki/Gear_oil
Well when i'm slowing down for a corner when pressing on, i'll get on the brakes down on the clutch into neutral then a blip with my toe up to the right revs then in on the clutch and into gear and back off the clutch again before the revs drop. Slots into gear very sweetly and will be smooth back off the clutch as well unless your slow at it and let the revs drop. Been doing it in the 225 and the 172 before that, its a bit easier on the 225 with its stupid dual mass flywheel as the revs drop much more slowly.
What am I doing? Is this heal+toe or something else aswell?
Reading that having GL4 could cause an issue then
