Originally Posted by Pattojnr
Hi Joe, on the spool i found that it was very hard on the front belts. once tires wore to same or rears smaller, the front belt wouldnt last very long.
so tire size is critical for a solid front axle. i did notice it was easier to drive , but lacked turn in . as i had to lock the front in one race only, i didnt run it for that long. a front geared diff will give better results, easier to drive, and most important for your question, 4 wheel braking. i know most guys are using 50K front diff oil, and 30K rear. best guys to ask would be Razzor or ZOOM. i know they run the front diff. i have one but its still sitting there waiting to get into the car. wont be long till i find out what works with the oils. untill then hope someone can help you out. surface and traction of the track you will be running on is a good thing to know as well.
Well put Patto. I agree entirely with what you say on the front diff' question.
Especially concerning the front spool.
Things I think to remember when deciding what front diff' to use........
Spool has very good 'power on' steering, but less turn in initially. Can be good on low, med' and high grip tracks!
Also, as patto has said it is critical on tire size.
Front gear diff' is probably the best choice but you do have to choose the right oil/greese to fill it with to make it work better then the other options.
Rule of thumb on these is the more traction you have at the track, the thinner
the front oil can be.
IE: 100,000WT = low traction, 70,000WT medium, 50,000 med-high traction tracks. But it depends on how you like the car to feel. So personal preference here!
BIG plus on both these is you have four wheel braking!
Front one-way = you get very good turn in and very good 'power-on' steering.............but very little braking.
Another thing. If you choose a front gear diff, you will nead to play with different oils in the rear too.
Again, just a "rule-of-thumb" here............ the higher the traction you have, the thicker
the rear oil in the rear. So......
Low = 10,000WT, Medium traction = 20,000WT and high 30,000 or even 40,000WT oil.
Just a guide line but I hope this helps.
As Patto has said, it does depend on the amount of traction at your track to guide you in what to use.