Yfz brakes quick question

[PineyPower]

I know alot of people are running yfz450 front calipers, do you need to also change out the master? Also any particular year yfz to look for or is it obe of those things they never changed?

 

[beastlywarrior228]

Nope and any year or raptor 700

 

[PineyPower]

Sweet. Related note, any reason besides weight savings to switch to yfz spindles?

 

[beastlywarrior228]

Sweet. Related note, any reason besides weight savings to switch to yfz spindles?

Better scrub radius and more camber gain.

 

[The_Mistress $$$]

I know alot of people are running yfz450 front calipers, do you need to also change out the master? Also any particular year yfz to look for or is it obe of those things they never changed?

Run the efi years spindles set up

 

[PineyPower]

Looking closely at pictures it seems they moved the steering arm part of the knuckle down a bit between the older and newer 450's and both lower still than the warrior.im guessing this has an effect on bump steer? Pics for reference

 

[The_Mistress $$$]

Looking closely at pictures it seems they moved the steering arm part of the knuckle down a bit between the older and newer 450's and both lower still than the warrior.im guessing this has an effect on bump steer? Pics for referenceView attachment 5534View attachment 5533View attachment 5532

Weston shared that the tierod arm is longer on the efi models and suggested those are better for the warrior so as soon as I find a reasonable priced set imma get them and see how they work with westons arms

 

[PineyPower]

Arm further out also means less steering angle at the wheel and slower steering speed, but should also be easier to turn. Thinking it might be a matter of preference unless the measurements say otherwise.
Also, this thread evolved waaay past my brake question which is super cool, but a mod might want to change the thread title lol

 

[beastlywarrior228]

Looking closely at pictures it seems they moved the steering arm part of the knuckle down a bit between the older and newer 450's and both lower still than the warrior.im guessing this has an effect on bump steer? Pics for referenceView attachment 5534View attachment 5533View attachment 5532

Yes it would and that is the problem I have with them yet. I don't know yet where these make the tie rods land in relation to the instant center. If they're way off the bump steer will be horrible.

 

[beastlywarrior228]

Arm further out also means less steering angle at the wheel and slower steering speed, but should also be easier to turn. Thinking it might be a matter of preference unless the measurements say otherwise.

Yes Weston was mostly looking at Ackerman and steering effort.

 

[PineyPower]

If I remember right the stock set up has that goofy Akerman angle where the outer wheel turns tighter thab the inner. Trying to correct that might mean better front end grip and a better turn-in, but im pretty sure at least for drift cars they prefer the backwards Akerman to get better grip when countersteering. I guess the real question as far as steering geometry goes is what's best for a quad?

 

[beastlywarrior228]

If I remember right the stock set up has that goofy Akerman angle where the outer wheel turns tighter thab the inner. Trying to correct that might mean better front end grip and a better turn-in, but im pretty sure at least for drift cars they prefer the backwards Akerman to get better grip when countersteering. I guess the real question as far as steering geometry goes is what's best for a quad?

Hm I don't remember having that issue. The amount of ideal Ackerman changes by the width, wheelbase and speed.