by SuperSlab » Sat Dec 22, 2012 2:10 pm
I am hard pressed to think of better slot value for money than my recently acquired Carrera Cheetah! This derives from both the tremendous price (30-odd dollars) and what has turned out to be a great little slot car.
I got my red #8 a couple weeks ago. On the track I run on (Luf's Targa for those that know it), urethanes are a must and we pretty much exclusively use Luf's own "home brewed" tyres. Initially I thought I would get him to make me up a set of tyres so I took him the original tyres to use for making moulds.
BTW: in initially disassembling the car, I was struck by how many screws they use in the car: a total of 15!!! No wonder their cars are heavy: the screws they supply weigh more than the complete body of some other cars! Have they screwed up on this one?
The following Friday I took the car to the track but Luf had not had the time to do up the new tyres. Being the impatient type, I just temporarily put some F1 size tyres on the wheels: given the high rib on the Carrera wheels this resulted in a highly "crowned" look to the tyres with a ridiculous 2-3mm contact strip down the middle only! While this was obviously far from perfect and caused some handling and "bouncing" issues, it was still surprisingly stable in spite of this. Based on that experience I decided that, rather have Luf make some unique tyres that would not be in great demand, I would rather just grind down the rib on the wheel and use stretched F1 tyres, suitably glued and trued.
BTW: at that time I also ran Luf's MRRC car and I must tell you I prefer the Carrera: just smoother and more solid (duh! Its a Carrera: what was I thinking!) and even with the oddball tyres I could still turn a faster lap with my Carrera than with his MRRC. At this stage the Carrera was doing around a 9.3 - 9.4 second lap: not bad given the Heath Robinson nature of the preparation of the Carrera...
For the final preparation I decided to remove the reversing switch and attendant wires and circuit board, replace the guide with a B-Nova fitting, get the wheels and tyres sorted out, lower the body a smidgen and do general blueprinting. I also left out the rear body screw and ground down the "cups" on the body mountings on the chassis and opened up the screw holes for some body movement. Once I started the work I decided to forgo the lowering: it looked fine as-is and lowering would have presented some headaches. And by the way: one word of warning: if you turn down the rib on the wheels be careful: it is a two part wheel that reverts to its constituent parts when you turn the rib down a touch too far. Don't ask me how I know.... The problem is easliy remedied with some superglue but it is less fuss and bother if avoided in the first place...
So I ran the newly prepped Cheetah last night for the first time with the work as described above. What a lovely, lovely little car! It is an absolute treat: smooth, quiet, corners like it is on rails but not unexpectedly tips over when pushed beyond its (rather impressive!) cornering limits. It ultimately turned a best lap of 8.603 seconds. A whole >0.7 second improvement with minimal work: just shows you what is possible with just decent preparation. For perspective: in looking down my list this lap time is similar to that achieved by well running Scaley TransAms, a Fly BMW M1 and a tweaked Revell Monogram Lola T70. Pretty impressive for the unusual dimensions and lack of performance credentials for this little car I thought!
Verdict: Of the best 30-odd dollars one can spend on a slot car IMHO.