View Full Version : information on gearing and tires colors for HO slots...


ampracing99
10-26-2008, 11:26 PM
i am curious what people use for gearing (crown and pinion) what tooth would be good for a road course track with long straights, and also and oval. down the road i will be building a drag track is there anywhere i can get gear charts if anyone sells these or downloads? just curious. please let me know and also the difference in tire colors (red,orange,black,yellow ect.) is there certain ones you guys suggest for racing?

what is also the best way to get the gears pulled off of the axle with out damaging the axle or gear. would a normal gear puller work?

thanks, shon:thumbsup::wave:

ampracing99
10-27-2008, 04:38 PM
hi just wondering if anyone had any information on this yet please let me know this might alot of newbies as well, thanks, shon:thumbsup:

martybauer31
10-27-2008, 06:11 PM
You gotta be way more specific Shon... what kind of cars you are running will tell what sort of gearing you may need. Also, with tire colors, you need to be specific as to which manufacturer, there are a few out there.

As for gear pullers, a bunch out there, again, need to know what cars you are working on.

twolff
10-27-2008, 06:20 PM
Hey Shon,

Gearing depends on the car and the track. Unless you are actually racing with a group and need to squeeze out every last bit of speed, you can (and should) just run whatever is on the car.

As far as I know, tire color is a manufacturer thing. Brand x green is not the same as brand y green. Oddly colored tires (ie. not black) look silly anyway.

If you need tires for plastic track that is not kept particularliy clean (like mine), I've found these to work the best:
http://www.weirdjack.com/bh.htm

Jack occasionally sells what he call a BOR (bag of rejects) and it is a bag of seconds that will have you in tires for some time to come.

There are quite a few different gear and wheel pullers available and want is best seems to depend on what cars you use them on.

Gotta go. I'll try again later.

blubyu
10-27-2008, 07:40 PM
I would go with BSRT delrin gears, you can't beat the price! Go for the 8tooth pinion for your Oval.

AfxToo
10-27-2008, 07:57 PM
If you run slip-on silicone tires it is very convenient to order each diameter tire in a unique color. When you do this it becomes much easier to know which tire/rim combination is going to yield the overall height that you desire to tune your car's performance. Smart track owners will always order tires this way and if they are really nice, they will make up a chart showing all the combinations of color and rim size.

The colors don't make a difference to me because all of my cars have stock black tires when they are on display. I have a small fishing lure box with a few sets of each diameter slip-on tire in its designated color along with a chart showing the total height for each wheel/tire combination. This works especially well for silicone tires that wear down very slowly, like the SuperTires brand. There is little reason to put relatively expensive slip-on tires on every car you own. Just put on the fancy and colorful racing tires when you actually run the cars on the track.

If you run one type of car you can create a very wide range of tuning capability with relatively few parts if you are smart about it. For example, if you make up some rear end sets with a combination of gears and wheel sizes and you have a wide range of tire sizes you will be able to dial your cr in pretty well. I would start with the following that would work for most any Tomy/Tyco/LL magnet car I can think of and most ceramic SS cars:

1) 0.250 rims with 23 tooth crown
2) 0.250 rims with 22 tooth crown
3) 0.275 rims with 23 tooth crown
4) 0.275 rims with 22 tooth crown

If you get all the standard SuperTires sizes this will allow you to achieve a range of mounted tire heights from 0.420 to 0.460 with either a 22 tooth or 23 tooth gear. That's a lot of tunability with a fairly small number of parts to purchase. If you want even more variability you can setup the rear end sets to work with either a 7 tooth or an 8 tooth pinion. That would set you up for just about any track conditions I can think of save a run on the Bonneville Salt Flats.

ampracing99
10-27-2008, 09:53 PM
thanks guys, i will be using slip ons, i am getting some t-jets,have a couple tycos, and will have a couple life-like. i'm still trying to buy some cars, to add to my small collection.lol thanks, shon:thumbsup: