2009 Hamilton - Onboard Footcam With Fabian Coulthard

Featuring Heart Race Monitor and Speed.

Category:

Sports

Tags:

• heart
• rate
• 2009
• v8
• supercar
• championship
• series
• willson
• security
• fabian
• coulthard
• paul
• racing
• hamilton
• 500

[nattapolcha]

@Pupixario Yes you can do. But that's not harm your synchro ring? Rev match downshift w/o clutch that's mean try to engage collar selector with lower gear dog teeth while there's amount of force in dog teeth itself. Although you can match speed between collar(output shaft) and dog-gear(input shaft), there's stress on synchro cone due to different force between surface. That cause synchro ring and cone worn out earliness.

[Pupixario]

@nattapolcha Not that it's impossible but no I dont I drive a normal H pattern I just rarely use the clutch

[nattapolcha]

@Pupixario You drive with dog box transmission?

[Pupixario]

@nattapolcha He does just a small blip

[nattapolcha]

That's all I know about H-shift. But for sequential shifter when you move shift lever knob, it's suddenly engage to next gear that's right? The question is that "how fast the driver can do rev-matching before selector fork engage to next lower gear?" If he do heel&toe rev-match downshift there's no problem because he can depress clutch and wait until rev matching process complete before release clutch to engage engine and transmission. But for left foot brake rev-match how fast they can do... ?

[nattapolcha]

OK sorry for my language

For braking and downshift with dog box H-pattern you can move selector fork from previous gear to next lower gear w/o depress clutch. This can be done by braking with left foot and momentary tapping gas pedal with right foot, so it's reduce stress on dog-teeth coupling and you can move selector fork w/o depress clutch. The amount of gas you're tapping is required for rev-matching to next lower gear. You can move selector fork to next lower gear because speed is matched.

[Pupixario]

@nattapolcha It's realy not that amazing . I drive my road car almost like this without clutch and it's a normal 5 speed H pattern .

[Pupixario]

@nattapolcha K srsly ? I didn't understand the question at ALL :S

[nattapolcha]

@Pupixario This's call left foot brake rev match with sequential shifter. But I'm very doubtful with this. I've ever seen the guy on youtube do left foot brake rev match with H-shift(dog-box) gear box and I'm understand clearly about how it's work. However with this gear box(sequential dog-box) I have no idea. Could you explained to me? :D

[Pupixario]

@fopake why would you use the clutch in these cars ? It's rarely used in that seq gearbox and mostly for setting off :)