NX brake upgrade

You do not need to upgrade your rear brakes after the AD22VF brake upgrade nor do you need to change the master cylinder. You may want to also install braided brake lines to eliminated mushy brakes. I prefer Metal Masters for brake pads but others I am sure will have their own recommendations.

http://www.sentra.net/tech/garage/brakes.php

I would reccomend doing something to the rear brakes, because by increasing the front rotor size you are making your breaking system more front biased, and that can actually increase stopping distance. Check out this months Grass Roots Motorsports, they have a GREAT article on this!

-Josh

I thought just doing the AD22 upgrade with SS lines was proven to shorten the classic's stopping distance by 20-something feet? You can always use better pads on the rear to help out. I was trying to see if I could move my front brakes to the rear, but I was told to search and I still haven't found any info on it.

There is no harm in replacing only the front brakes with AD22s. The NX uses the same rears as the SE-R, so the SER with AD22s should be the same braking system as an NX, although if the NX had a different proportioning valve it would compensate.

I have just the AD22VFs on the front. Much better braking power than before and they are much more fade resistent than stock. BUT, my rear brakes don't do crap. I'm done modding my car though, otherwise, I'd get the Altima MC

Mostly, from what I've read and been told, all the altima master cylinder will do is change the "effort" or pedal feel. If you're looking for good street/race pads, get ahold of Matt at Carbotech... he's on the forum here.

For the NX2k upgrade, talk with Chriscar... he's got a really good deal on a new system, including brakes, brackets, rotors and pads. If you look on ebay for steel braided lines, there's a place in Miami, Russells... good rep, that sells them for around $90.

Why do I (think) in know this? Because they will be my first upgrade this year... provided the budget bucket gets filled.

Peace Out,
Mark

On my B13, up front I have NX upgrade and in the rear I have 94 maxima se calipers with 9 inch NX rear rotor w/stock master cyl. WHOA!! what a 'EFFIN' difference. Definitely worth the money and the time. It's also a good Idea to the Altima M/Cyl. It has a bigger bore which would move more fluid w/less effort. As a result faster acting braking.

bigger bore which would move more fluid w/less effort

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Bass-akwards, man. Increasing bore increases effort but needs less travel to move a given volume of fluid. A smaller bore will reduce effort at cost of longer travel.

Also, did you drive the NX brakes before adding the Maxima rears? If not, your impressions are not applicable to this discussion.

Just did my AD22's up front on my B13 with stock
rims. Bled through Motul 5.1. My speed bleeders
died, I have new ones on order. Have to re-bleed
some more - still have a little air in the system.

are the Sentra front brakes larger than the rear brakes?

the reason I'm asking is because if they are, couldn't you put the front SE-R brakes on the rear when you upgrade the front to NX brakes?

but maybe the front and rear are the same on the SE-R...

will go look here in a second..

vqman said:

are the Sentra front brakes larger than the rear brakes?

the reason I'm asking is because if they are, couldn't you put the front SE-R brakes on the rear when you upgrade the front to NX brakes?

but maybe the front and rear are the same on the SE-R...

will go look here in a second..

Click to expand...

The SE-R's front brakes are bigger than the rear (9.8" vs 9.1"), but they are also a different type. The rear takes solid rotor and the front is a vented rotor. I don't think the SE-R fronts bolt up to the rears, I asked a long time ago and they told me "no."

The front brakes use a different torque member and the orientation to the hub is slightly different. Yes, you can use you're front calipers and rotors on the rear, but you would have to find a machinist/fabricator who could design and produce a new torque member from scratch (think several hundred $). You would also give up your E-brake because front calipers don't have cable ties.

What I believe to be the most cost effective solution, is to turn in your stock AD18's as cores for a set of AD22VFs, and buy the Maxima rear calipers along with the torque members & Maxima 10" rear rotors tapped 4x100 from Fastbrakes.com, then trade in your stock MC as core on an Altima MC. Then Nissan OE or AXXIS Metal Master pads.

All that combined and will make a fantastic improvement in braking and only cost you around $425.

iNGEN said:

What I believe to be the most cost effective solution, is to turn in your stock AD18's as cores for a set of AD22VFs, and buy the Maxima rear calipers along with the torque members & Maxima 10" rear rotors tapped 4x100 from Fastbrakes.com, then trade in your stock MC as core on an Altima MC. Then Nissan OE or AXXIS Metal Master pads.

All that combined and will make a fantastic improvement in braking and only cost you around $425.

Click to expand...

Or instead of drilling and tapping maxima rotors, you can go pick up a set of the "stock" larger nx2000 rotors. Got mine the other day for my b13 sentra along with the altima MC and maxima rear calipers. The part number is under the other thread about the rear brake conversion....and they are cheap, only cost me 29 bucks per rotor.

vqman said:

good info thanks! :biggthump



sounds like it's not a good idea..



I would trade them in, but I won't be purchasing EVERYTHING at once (money is tight), and the SE-R is now my only car (i just sold my Maxima) so I can't trade in the cores. As an alternative, I am purchasing some used AV22VF's for $50 shipped from Flick. But I don't know when I'll be able to purchase the NX rotors and brake pads for the front.





Sergo, are you saying to use the Maxima rear calipers, Altima MC and nx2000 front rotors? or the nx2000 rear rotors? (I'm not sure on the size of the rears vs. fronts on the NX)....

And where did you get NX rotors for $29? are those brand new OE rotors?
I was planning on using OE Brand new Rotors and a "performance" pad with my setup..



Thanks guys!

-vq

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yes use 91-94 maxima rear calipers, and the rotors are REAR nx2000 (the larger ones, they are almost the same size as the ad22 except they arent vented http://www.sr20forum.com/showpost.php?p=845897&postcount=31 I am totally sure of the size. correct bolt patern (no drilling) just larger rotors (funny how alot of people dont think these larger nx rear rotors exist.....) and as far as the price, thats just what they guy told me at the parts store when i purchased them.