Originally Posted by
Barger
Hi Tony...I have finallyfound the biggest speed secret ever ...especially for the mini....TYRES!!!!!!...I have been using 60d Tamyia with double stuffed fronts...OK at the start ..but the fronts went thru to the insert pretty quickly,and even though the car still drove reasonable,caused major understeer.I put a set of Splice 32s on with black Tamyia inserts(no double stuffing)...what a difference....won a couple of the heats and the final!!!!
Bob
Bob, I bet Cal Holmes (Caltek1) just read what you wrote and laughed to himself...
Because I've spent the last couple of week espousing my 'tyre theory' to him
And it's basically that 60D's SUCK...
They used to be OK years ago, but now they're rubbish. They wear quickly, and they don't grip.
My basic tyre theory now says that for probably 95% of tracks, the compromises that Type A 60D's (and also to some extent S grips and M grips too) force on your setup, MORE than negate any slight advantage that the extra diameter has, (btw, the actual difference over a 'normal' tyre is just under 6%) You have to add toe-out to get them to turn, which gives you tyre scrub and slows the car down.
And they don't have the acceleration and grip either.
I've been carefully monitoring my own performance on all tyres lately, and also the other rc-mini drivers. And all the data comes in firmly on the side of the little tyres. At Wodonga for example I was nearly a second a lap QUICKER with the small tyres. Pretty much anyone who has changed back to small tyres has gone quicker...
People running to TCS rules don't have this option, but I can tell you now, I've sold all my 60D's...