:rolleyes: You expect me to be fooled by that :rolleyes:

Several of us changed them out at the winter nats, so not too much time to evaluate. My feeling was I got a significant increase in steering, not only on turn in but mid-sweeper, and in the infield. However, the car was twitchy. This was reduced by reducing the width of the front tires, but it never completely got comfortable. The least move from dead center and the car was right on it. I constantly felt like I'd like "a longer lever handle". I have driven it several times since, and my opinion has not changed. So I'm switching back to the original to compare them again.

Come on Mark, hop on this , I know your were involved with cutting down the front tires,etc. How did you feel?

Jack,

I would be interested to hear how the comparison goes. For the circuit which I run on, the long servo saver is definately better. I will also carry out a comparison when I get my second 710 back together.

Cheers, Mark.

I would have liked to have tried out the normal servo saver at the winternats, but I didn't have time at the end of the day.

I think I was more twitchy than my car at the winternats ;) :lol: But for me, it felt ok - maybe it gave a little too much steering (I had my dual-rate down around 55-60%) - but I didn't really have the feeling that it was too twitchy.
It would be interesting to hear if any of the 710 guys had the old servo saver in at the winternats.

Next year, when my pit monkey is also there :D I should have more time to experiment :nod:

I actually found that I needed less steering travel with the longer servo saver. So, maybe you can try reducing the travel a bit and see if the car becomes less twitchy...

Re: Re: Re: Re: titanium screws
 

I found some M4 titanium screws that I think were mainly meant for the 1/8 cars. But I don't think I saw one in 25mm length...
And the prices are...:eek: :eek: :eek: !!!

Maybe will go back for a 2nd and closer look...

Re: Re: Re: Re: Re: droop
 

Actually I agree with you. The droop, downstop and upstop measurements does not give the full picture.

The effect of the these measurements are to do with weight transfer and of course, how fast and how much weight transfer takes place at any given time depends on the up/down travel a chassis can make and this depends on the upstop/downstop setting as well as shocks settings.

Ya by putting more front toe-in you can futher improve the ackermen.

That is correct if you're in the middle of the corner all the time like in oval racing. :lol: You loose a little bit of initial steering when entering the corner.

Re: Impulse/705 chasis
 

I was told by Serpent USA that the chassis are not interchangeable. Looking for an Impulse chassis?

As the 705 has its battery under the tank, and the impulse hasn't they aren't interchangeable.

Mark...this is how I set my gap. After it's tight I just remove the shims which adds up to the gap I'm trying to achieve. I think I get a more accurate result doing it this way.

I have done it this way before, but that was for a 0.5mm gap - with which I also ended up blowing the bearings. But I feel it is also the most accurate way.
I've also used feeler guages (the pre-formed strips of metal which range from 0.01mm upto 1mm) and I get the same measured value. But with the calipers, I'm about 0.2mm off.

For my driving technique, I seem to require a 0.7mm clutch gap to avoid blowing the bearings.

Cheers, Mark.

Is it the gap or the spring tension that is causing the bearing problem?

It can only be the gap. After a run my clutch bell would be 65C, which seems to cause the oil in the metal shielded bearings to be fluid enough to run out. After that, then the bearings are running metal-on-metal and don't last much longer.
I tired many different clutch tensions and non made any real difference to the clutch bell temp.
As a last resort, I opened up the clutch gap and hey-presto, clutch bell temp was 48C after a run.
I measured a friends clutch bell temp after a run he did and it was 51C - he's never had problems with the metal shielded bearings.
I hope now that the temp is lower, that I won't have any further problems.

Cheers, Mark.