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Old 01-10-2014, 10:08 AM   #1
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Default Frt Oneway Diff vs Frt Gear Diff .

I have a old V1RRR it is equip with a front oneway I noticed that the current version of this car comes with a Geared frt diff that has 300,000 weight diff oil in it!!! My question is which one is better ?? What are the advantages of the geared diff setup over the oneway diff setup ?? And do you still have overdrive with the geared diff setup?? My old V1RRR has overdrive with the oneway diff up frt.
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Old 01-10-2014, 12:26 PM   #2
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Originally Posted by nitrohead5300 View Post
I have a old V1RRR it is equip with a front oneway I noticed that the current version of this car comes with a Geared frt diff that has 300,000 weight diff oil in it!!! My question is which one is better ?? What are the advantages of the geared diff setup over the oneway diff setup ?? And do you still have overdrive with the geared diff setup?? My old V1RRR has overdrive with the oneway diff up frt.

IMO: The oneway will be affective on a long swooping European style track where you may not need to use breaks as much, but have more throttle control

will also increase steering and corner speed but when engage breaks the back wheels will lock and spin car around ( if use oneway you can set radio for the breaks to ABS which has helped )

Far as overdrive if i understand correctly, the pulley on the oneway, spool, and gear diff are same # of teeth, if your referring to overdrive i believe then you may mean the side pulley by either using the 25t or the 26t

26t in theory will make the fronts pull more then with the 25t and the affect should make the fronts to wear more then with the 25t

Overall using the front diff may make the car easier to drive IMO and give you an overall more balanced car

I personally liked using the spool on semi larger type tracks with not as much tight turns and found that way the car to be the fastest

on more tighter twisted twirly tracks a gear diff I found it to be more affective

Hope this to shine more light, the rest is plug and play
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Old 01-10-2014, 12:45 PM   #3
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Mike , it took me a while but I had my brakes adjusted so they would apply good braking force just shy of locking up. My technique was to tap my brakes at the end of the straightaway turn my wheels and punch it . When my backend starts to break loose the Overdrive takes over and the front end pulls my car thru the turns if you got it set up right. The tire diameter is very important element of the equation. Front tires need to be smaller that the rear appox 3mm.
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Old 01-10-2014, 12:53 PM   #4
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What I am wondering about is how you keep the frt gear diff from providing resistance to the rear diff because the gearing is different?? With cars that have geared diffs back and front usually the diff gear is the same size. The exception is when you have a car with a oneway diff in the front. Cars that have a oneway diff in the front there is a difference in size between the front and the back, the front diff gear is smaller than the rear diff gear. And with the oneway diff setup the front end is turning over faster than the rear end when it first takes off but when the rear end catches up and starts to turn faster than the front end the oneway disengages and the front end free wheels offering no resistance to the push of the rear end.
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