Owners/drivers could you please take a quick look at the vid below, it is only 5 seconds or so.....
This is the rev counter viewed whilst taking off up a gradient using the ECU with the clutch being released very gently and only throttle once the car moves. Is this the way your car behaves, any subtle differences ?
http://www.youtube.com/watch?v=4ca_nIFresg


And here is one which you will all be familiar with, captured whilst filming for the breathtaking footage above
http://www.youtube.com/watch?v=fehUEJo0U3E

 

I couldn't tell from the video what was going on at all.

It just looks like the CGT is idling and then, at the very end, gets a tiny bit louder at the same rpm.

My hill starts are a little more flamboyant because I stopped worrying about how to work the gas and clutch and just got used to doing it.

 

TB, I can't really make out what's going on in the video.

I'll go out in mine later and take two videos. One moving off with no throttle i.e letting the ECU take over, and another moving off with me using the throttle.

I extended the offer on another thread of meeting up so I can try your car/you can try mine to see if it's a problem with your car - or your driving!

 

I'll e-mail them to you by the way, too technical this You Tube marlarcy!

 

RS
Appreciate the offer of a meet..... I was wondering if the video would reveal something obvious like other car's ECUs provide a few hundred more revs on the hill start - mine doesn't appear to do this, I thought the vid above shows this ?

Look forward to recieving your videos although you don't have to give me a lesson in driving off using the throttle (I can just about manage that ), its the ECU function (or lack of) which I'm
interested in

 

Think of the no-gas-pedal start as an extension of the idle control mechanism for the engine. I my experience, letting out the clutch without touching the throttle acts exactly as if the engine idle-speed servo were merely extremely powerful/aggressive. I don't notice any real increase of engine speed, maybe even a tiny dip in rpm, as the ECU fights off the decrease in engine turnover as the clutch takes up. As the load increases, the ECU adds more juice to compensate and maintain the idle speed.

This info comes from memory as I played around with my CGT a year or so ago. I may be wrong about just low the RPM stays while taking up the increasing clutch load, but I pretty confident in the general accuracy of the observed servo behavior.

Anyway, I rarely use the no-throttle start anymore since I've gotten completely used to the clutch/engine-inertia/throttle interaction.