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Old 05-01-2011, 09:55 PM   #5821
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Hey, as for experimenting with gearing on a DM-1, does it make more sense to try 15-19 or 17-21(stock is 16-20) pinions for the CB?? What do more people run?
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Old 05-01-2011, 11:26 PM   #5822
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Hey, as for experimenting with gearing on a DM-1, does it make more sense to try 15-19 or 17-21(stock is 16-20) pinions for the CB?? What do more people run?
Proper race car gearing depends on track length, infield layout or technicality and usable engine range or your engine's rpm potential.

How big is the track? What engine ya got?
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Old 05-02-2011, 04:18 AM   #5823
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Track is not that relevant, cuz I'm not really racing. Engine is up in the air, but right now I'm thinking Argus or Alpha Z852 green-top or the new A872..(i.e. one of the Alpha 7-port buggy engines more oriented to top-end..) Basically, I just sold my Jammin NIB JPX 21, and will hopefully end up with an Argus or Alpha and 50 extra Euros in the pocket..

I changed my order to 15-19 instead of 17-21.. I reckon, with a 21, going down in the CB gearing makes more sense...
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Old 05-02-2011, 01:10 PM   #5824
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Herrsavage,

If you're not running on any tracks, you might be better off with the 17/21s anyway. The taller gears will help your engine last longer, get more run time & reach higher top speeds. The 15/19s will give stronger bottom end and reduce every thing else; they're really only any fun with hi-rpm .21 on-road engines. Good luck.
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Old 05-02-2011, 09:00 PM   #5825
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Post DM-1 Setup

Hello Folks,

We are in the northwest and are looking to start a DM-1 class for some of the guys that want a "starter" nitro race car. something inexpensive and good durability... So the Ofna DM-1 was tested. We will run it with a 3 port buggy motor to keep the cost down.

So what I am needing is a good set up for this car... anyone have some information that they can share. Such as tires...springs, oil and basic setup.... We want to make sure we have a solid base line setup and then go from there...

Come see us at http://www.timezoneracing.com

Cheers,
Clete
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Old 05-02-2011, 10:13 PM   #5826
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Great choice, for tires I would suggest to keep using just rubber tires. Of these the best will depend on track conditions but stay with an establish brand like Ipanema, Sweep, Alpha RC or PMT. I have used Ipanema with great success but the brands that I have mentioned are very good.

Basic setup as far as diffs (dependimg on driver and track) from
300k front to 100k
30k to 10k rear
front toe 0
rear toe -3
front camber -2
rear camber -3
with camber you can run new tires, after a few laps check for tire wear. Just set it so that all the tires wear the complete contact patch.
Caster stock as per manual
front shocks 1000 (diff fluid)
rear 80wt
white front springs
red (stock) springs
front blade stabilizer 90 degrees (full upright)
rear blade 0 degrees (flat)
ride height about 8 to 10mm

on the DM-1 the only mods necesary are aluminum lower suspension arm mounts. Use 1 for the front and 1 for the rear. There are various companies that sell them. Prices for these vary from $20 to $25 each. In my opinion this is the only must do for the car. Of course there are lots of other things you can do but you can have lots of fun without them.
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Old 05-03-2011, 08:28 AM   #5827
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Quote:
Originally Posted by Jspeed View Post
Herrsavage,

If you're not running on any tracks, you might be better off with the 17/21s anyway. The taller gears will help your engine last longer, get more run time & reach higher top speeds. The 15/19s will give stronger bottom end and reduce every thing else; they're really only any fun with hi-rpm .21 on-road engines. Good luck.
+1 on the taller gearing ...to me the 17/21 is suitable for some tight and large tracks..so far i haven't went to the stock gearing
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Old 05-03-2011, 08:52 AM   #5828
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Default 2011 Las Vegas Grand Prix

Sweep GT EXP50 Sweeping 2011 Las Vegas Grand Prix

TQ , 1st Amain! only 14 lap runs of the event. all done by Gus Wood (Spooky1)
in fact, 90% of Amain machines was on Sweep GT Tires!

we also want announce we are working on our own 40 shore GT tires for Electric powered GT class, which requires bit more forward traction.

Thank you all.

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GT class--buggy-based on road!-2011-flyer.jpg  
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Old 05-03-2011, 10:29 AM   #5829
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The tires were great and hooked up all weekend. One set handled five qualifiying rounds and a new set for the 30min. main were like new when I came off the track. Thanks John, and Sweep racing for a top notch product. I'm proud to run them.
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Old 05-03-2011, 10:39 AM   #5830
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Well crap.. I changed to 15-19.. Oh well, will have that as a backup - and stick with stock for the time being... Might try to find some Ofna 17 and 21 pinions for the stock CB...
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Old 05-03-2011, 11:18 AM   #5831
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Congrats Spooky,

Any pictures of the GT class that raced?
Do you have a link to the full race results from timing & scoring?

Iím sure a lot of us would like to see & read what we really missed.
Congrats again, glad you had fun.
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Old 05-03-2011, 06:10 PM   #5832
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Quote:
Originally Posted by spooky 1 View Post
The tires were great and hooked up all weekend. One set handled five qualifiying rounds and a new set for the 30min. main were like new when I came off the track. Thanks John, and Sweep racing for a top notch product. I'm proud to run them.
Sweep them all.... oh yea you did that TQ and win NICE

Gus did u remember the Rules

The Vegas rules are #1. Race your car and smile a bunch. #2 Refer to #1

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Old 05-03-2011, 08:01 PM   #5833
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Hi all,I have never raced on-road and was thinkin of buying a Ofna DM-1 spec car to race in spec class.I have a question is the RTR force .28 in this car any good? What are your thoughts on this RTR car altogether? Thanks,
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Old 05-04-2011, 08:40 AM   #5834
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Thumbs up Thank You

Thanks for the info and PMs
I just ordered all the gear I needed for my car and frankly, I am stoked!
If anyone has set-up ideas or tips send them to me in a PM. Mike Godson and I will do some testing and Find out what combination works best at our track. Then will create a SetUp/Tips handout for the guys that want to build the class. I see us running Sweeps at this point due to the excelent support that they have shown at the Xray Challenge and TimeZone GP races.
I think Mark Day and Rick St. Cyr have a ongoing relationship with them as does Rose City Racers...

We are going to keep it real simple at this point....
3 port Novarossi motor $150-$170...
Sweep Tires... I need to do some tire testing with compounds... we want to make sure we hand everyone good information. Any thoughts on compounds is welcome
5 min quals..
30 min mains...

One last thought... Brakes.. do they need up graded? ... we noticed they got pretty hot.... but did not fade to bad... Keep in mind we run on a very large track with elavation changes.
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Old 05-04-2011, 09:54 AM   #5835
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The Sweep 50 EXP is the compound of choice at our local venues. Slicks
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