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Old 2019.01.06, 07:29 AM   #1
herman
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Join Date: Nov 2001
Location: makati, philippines
Posts: 8,666
FWD set up....

Newbie question...

I've noticed the offsets for the Mazda are 1.5N all around...

I was thinking of putting 1.5N fronts and 0W rears. Being FWD, was also wondering what type of tires to put up front and what tires to put in the rear... should you have a more softer front tires than rear tires (i.e. 20 front / 30 rear)? Or just run it like a RWD having a hard front and soft rear (i.e. 30 front / 20 rear)?

Again being FWD, would you have any advantage running a wide front vs. a narrow front, based on the assumption that the wide front with a wider contact patch would provide more more grip and power - since it is after all FWD....

Would appreciate any set up tips that you are using...

Thanks in advance...
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Old 2019.01.06, 07:09 PM   #2
ghost chili
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I'm not much better than a noob myself, but I find having softer tires in front helps with acceleration and less understeer. I have 20 degree slicks in front and the stock tires in the rear. Other way around (30s in front and 20s in rear) leads to a lot of understeer. I would imagine wider tires up front would help with grip and acceleration, but I unfortunately do not have the optional wide wheels and tires to test that idea out. I'm also primarily running my FWD on a carpeted floor so grip is abundant and I tend to roll the car if I take a turn too fast.

I also found it helped when I packed the differential with friction grease to create a limited slip effect. Probably not as good as a ball differential, but it works for now.
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Old 2019.01.07, 02:50 PM   #3
Kremzeek
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Join Date: Sep 2018
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I've got Kyosho Radial 30's in front and 20's in the back on mine. It has way too much steering and even with glue on the side of the front tires, it rolls every time I take a corner at speed.

I have some spring sets and low height slicks in 30 and 40 coming from Japan. I'm hoping these help some.
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Old 2019.01.25, 11:13 PM   #4
Kremzeek
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Join Date: Sep 2018
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Okay, I'm getting closer to making this thing drivable on our local track.

Front - purple springs
Kyosho low height slicks - 40

Rear - lime green springs
Kyosho low height slicks - 30
1.5 toe in

This car really needs some 0 degree tie rods in front. Having toe out just makes it unstable at speed. The toe in on the rear helps some, but doesn't take care of it all.

I feel like the front diff could use some grease in it and/or some softer tires as one wheel seems to slip under heavy acceleration and the car moves off in one direction or the other. I guess you could call this torque steer which is an issue with real world cars.
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Old 2019.01.26, 08:25 AM   #5
herman
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Thanks for sharing
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