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PostPosted: Sat Nov 08, 2014 1:44 pm 
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Location: Fort Worth , TX and Woodward OK
Hey guys I'm looking to get rid of my garbage China calipers , I don't Wana change to a 5 lug due to the fact that I have to many wheels .... does any one know of something that I can just bolt up (cnc, wheel wood) or I can even weld something on my 3x3s .

Looking for the rear but I would like to front too some time in the future


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PostPosted: Sat Nov 08, 2014 1:59 pm 
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Make your own brackets and use 1986 Sentra front calipers. They work real good. Several on here run them.

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PostPosted: Sat Nov 08, 2014 2:02 pm 
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Where are you from? Your profile isn't filled out.

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PostPosted: Sat Nov 08, 2014 3:00 pm 
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I'll check it out , yeah it's on my to do list , I'm from Fort Worth
Here is my buggy viewtopic.php?f=4&t=17272


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PostPosted: Sat Nov 08, 2014 7:52 pm 
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Oh yea...I remember seeing your buggy. It's sharp.

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PostPosted: Sat Nov 08, 2014 11:20 pm 
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Thanks man , I think I'm going to buy cnc and just weld on brackets to my trailing arms . I want good 4 piston calipers
Unless any one has any suggestions


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PostPosted: Tue Nov 11, 2014 8:47 am 
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get the Nissan calipers. cant beat them!!
http://www.ebay.com/itm/Cardone-Industr ... 25&vxp=mtr
ya need a right and left.

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PostPosted: Tue Nov 11, 2014 8:30 pm 
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Sentra


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PostPosted: Wed Nov 12, 2014 8:55 am 
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I just took a set of "high dollar" willwoods off my race buggy and put an old set of Nissan sentras on it. best brakes it has ever had!!

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PostPosted: Wed Nov 12, 2014 11:54 pm 
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I don't understand how a single piston caliper can out preform cnc or willwood aluminum 4 piston caliper


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PostPosted: Thu Nov 13, 2014 12:39 am 
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Maybe just maybe it's true Japaneese ingenuity...lol.....probably stolen from the Germans..lol

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PostPosted: Thu Nov 13, 2014 10:27 am 
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When looking at brake effort, don't think so much about how many pistons or how big the pads are. What really counts is force on the pads, which comes down to piston area. Using the standard geometric method (Pie are square, cake are round) 3.1416 X (Radius squared) = area. Say you have the 52mm Sentra calipers, you have 26 X 26 X 3.1416 = 2123 mm2. A four piston caliper with 25mm pistons has 12.5 X 12.5 X 3.1416 X 4 = 1963 mm2. Not sure how big the Wilwood pistons are, but this at least puts it in perspective. A given amount of brake line pressure will generate more pressure on the Sentra pads than on the Wilwood pads if these sizes are accurate. Friction coefficients also come into play. The Wilwood pads are likely intended to withstand higher temperatures, and may perform better when both are really hot than the Sentras, but may be worse when cold. Heat is not an issue for a woods buggy typically. Add to this pad alignment, particularly when you use a fixed caliper. First set I ever put on a buggy 30 or so years ago, used the VW calipers and got them on a little crooked. As the pads wore at an angle they seated better and better on the rotor, and brakes gradually got better. If the Sentra caliper mounts were aligned better this would make a difference also. Basically bigger calipers (piston area) and/or larger diameter rotors (more leverage farther from the axle) typically results in better braking effectiveness. Smaller master cylinder results in higher line pressure but more stroke to take up free play. As an example, in the stone age before we started adapting disc brakes we would use the small 17mm bug master cylinder with Type 3 22mm wheel cylinders to get the most pressure on the old shoe brakes. Had to keep them adjusted up tight as it took a lot of fluid to fill them up and take up free play. Lots of factors involved, hope this helps. You also have to factor in that the Wilwoods look a LOT cooler, especially if they are painted to match the buggy. Not as much HP as chrome though. No offense to Wilwood owners, we all like to have sharp looking equipment, if I had the coins I probably would have a set too, just make sure you compare sizes, Wilwood and others make a lot of different calipers and there may be a better choice for what you are doing.


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PostPosted: Thu Nov 13, 2014 11:33 am 
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the issue we have found with the willwoods is that they are fixed. so everytime your sub axle flexes or brake mount, or rotor flexes (or if your bearings arnt perfect) you push fluid out of the caliper. That is fluid you have to put back in before your brakes will work. The Nissan brakes float so you aren't pushing the fluid back out. Honestly even with the willwoods working perfectly, I still prefer the nissans.

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PostPosted: Thu Nov 13, 2014 3:50 pm 
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Thank you guys that is a lot of good info ! I honestly don't care what they look like just want something that works good with my brakes and cutting brake , I'm running cnc master 3/4 with cnc cutter I think it's 3/4 I'll have to look

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PostPosted: Thu Nov 13, 2014 3:51 pm 
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What pads would u run with the sentra ? Just cheap organic pads

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PostPosted: Thu Nov 13, 2014 3:57 pm 
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I believe that's what I got. Locks my Swampers right up. Couldn't ask for any better brakes.

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PostPosted: Thu Nov 13, 2014 4:09 pm 
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Ok so with all that being said , what is a good replacement for front ?? I have disk on the front with China bullshit

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PostPosted: Thu Nov 13, 2014 4:09 pm 
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How is you life out of the pads and rotors ?

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PostPosted: Thu Nov 13, 2014 4:38 pm 
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I ran nissans all the way around on my old woodsbuggy.

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PostPosted: Thu Nov 13, 2014 5:37 pm 
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I'm assuming I should go for the 51.1 mm vs the 48mm ?

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PostPosted: Thu Nov 13, 2014 10:28 pm 
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Don't know the size. Just get the 1986 front calipers. Both sides. Then swap them on the back of the buggy to get your bleeders on top. The years are like 86 to 93 Sentras. All those should be the same. I run a bus master cylinder with mine. If I'm wrong on anything, somebody please chime in.

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PostPosted: Thu Nov 13, 2014 11:13 pm 
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I just ordered some off rockauto.com they had 2 types for that year one was 48 mm and other was 51.1mm same style and everything. So I went with the 51.1 mm , I figured bigger is better lol

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PostPosted: Fri Nov 14, 2014 10:38 am 
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Good choice, the 51.1 has 13.3% more area which will translate to that much more braking effectivity. I have the 48's on mine and will be swapping up this winter.


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PostPosted: Fri Nov 14, 2014 11:35 am 
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Would you run smaller ones on the front ? My set up looks like ; cnc single pedal with dual masters for the brakes both are 3/4 I also have balance bar set up , surprisingly it works pretty well, i am able to lock up the fronts before the rears or I can lock up the rears before the fronts depending on how I adjust it.

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PostPosted: Fri Nov 14, 2014 3:44 pm 
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What rotor thickness are sentra calipers for ?


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