question on the calipers - DodgeIntrepid.Net Forums - Dodge Intrepid, Concorde, 300m and Eagle Vision chat
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post #1 of 19 (permalink) Old 03-09-2007, 01:34 AM Thread Starter
 
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question on the calipers

does the 300m special use 2 piston calipers, and is there an upgrade to 4 piston calipers? i was thinking about this at work tonight, and was curious if they even make one for our trepids or revenges! haha
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post #2 of 19 (permalink) Old 03-09-2007, 01:49 AM
 
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I've been looking for the same thing, with no luck.

I'm sure there are parts out there that will work, but like I said, I've never come across them :p

There are slotted/drilled rotors for our cars, but I think that's the extent of it :p
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post #3 of 19 (permalink) Old 03-09-2007, 02:13 AM
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The only known upgrade is that big brake kit. 6 pistons I think, and $2000+.

Chances are, if you have an Intrepid, then it's totally useless. Unless you're that only person that laps Road America, Laguna Seca, and Watkins Glen on a weekly basis (where repeated 110 to 30 stops are needed)!
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post #4 of 19 (permalink) Old 03-09-2007, 11:46 AM Thread Starter
 
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haha yeah i dont think im going to laguna seca anytime soon, road america would be cool since im in shitsconsin! oh well, ill have to settle for slotted and drilled rotors
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post #5 of 19 (permalink) Old 03-09-2007, 11:57 AM
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post #6 of 19 (permalink) Old 03-09-2007, 12:09 PM
 
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The stock calipers for all LH cars are a single piston floating design, front and rear.

The Neon caliper has a very similar design. In fact there have been cases where a neon caliper was put on an Intrepid and vice versa.
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post #7 of 19 (permalink) Old 03-09-2007, 12:22 PM Thread Starter
 
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thats pretty nutty in my mind! maybe they had a year where they dropped a viper motor in our cars... but never produced it! haha
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post #8 of 19 (permalink) Old 01-12-2011, 12:14 AM
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I apologize for bumping this old thread but I was wondering if anyone has any updates.

I recently came across a set of front wilwood calipers for a neon srt4 (2004). I am debating to buy them and try them on the intrepid. They still look tiny compared to my other brembos but at least they are 4 piston vs the ghetto 1 piston that comes with them.

If anyone has any info about copatability please let me know [email protected]
I want to know if 2004 neon srt4 stock calipers fit the 1998-2004 intrepid.

If the stock ones fit, the wildwoods for the neon should as well

If it works im definitely posting it step by step so others can get better brakes for these large cars

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post #9 of 19 (permalink) Old 01-12-2011, 07:32 AM
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Don't the big brake calipers genereally require some adapting - either by adapters (attaching brackets) that come with them or you have to engineer your own? Would any adpaters come with those?
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post #10 of 19 (permalink) Old 01-12-2011, 01:29 PM
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I have looked at some caliper part numbers and the neon #s are different from the LH. The neon to LH curb weight is very different 2600lbs vs 3300. I don't think Chrysler would have spec'd the same caliper for these 2 platforms.
Yeah the design features : single piston, floating caliper, etc would be the same - that's what the standard caliper design was. Since Warlord isn't here to expound on his statement, I would guess that the only real similarities specs the calipers might be the caliper guide bolt spacing, allowing the two different calipers to be "put on".

I would love some bolt on options even though I think my trep stops well enough for me

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post #11 of 19 (permalink) Old 01-12-2011, 02:55 PM
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if someone can verify that this setup works for sure, i'll definitely get these done asap since i suspect i have a sticking caliper. Might as well replace them all lol.
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post #12 of 19 (permalink) Old 01-12-2011, 04:01 PM
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Through some quick online searches i found some generic calipers from wilwood that can be adapted using a custom bracket. I just want to check before i buy the pistons that it wont cost a fortune to make these brackets.

I found wilwood makes calipers that should fit. Im planning on buying a used set since they are over 900$ per pair new. They are originally made to upgrade the honda accord which is somewhat comparable in weight to the intrepid.

The stock rotors could be used unless we want to increase the size and then the bracket has to simply be taller.

Its not impossible but it will be a bit of work.
I got the idea after my 350z brembo 4 piston upgrade, once you drive even a dual piston car you will be amazed with the stopping power. The intrepid always feels like it wants to travel another couple of feet before it stops.

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post #13 of 19 (permalink) Old 01-12-2011, 06:45 PM
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I talked to someone a couple weeks back about brakes and he said you prob. won't have a hard time making calipers fit. The making of a bracket getting it on there somehow while still being able to clamp the brakes safely might not be that difficult. He said where you run into problems is the brake master cylinder it self. See I thought soo you add a bigger caliper you should be able to put more brake clamping out with less pedal travel. He says its the opposite you'll push the pedal farther to get the same if not alittle bit more braking out of your new caliper assembly. The only thing I can figure is when you have such a small single piston brake setup as oem it must work fine, but when you go bigger it then cannot push the fluid the same. He says how you fix this is upgrade the master cylinder put a bigger one in. Soo being that we are messing around with a 4 door sedan here a dodge at that it would only seem right that we look at the charger assembly to further our braking possiblities!

You see it could open up a can of worms doing this for our cars possibly making our abs come on quicker and/or something else possibly. I like the idea and want to pursue it more but am still uncertain which area to attack first.

Last edited by blackrt1; 01-12-2011 at 06:48 PM.
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post #14 of 19 (permalink) Old 01-12-2011, 08:51 PM
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Quote:
Originally Posted by blackrt1 View Post
...See I thought soo you add a bigger caliper you should be able to put more brake clamping out with less pedal travel. He says its the opposite you'll push the pedal farther to get the same if not alittle bit more braking out of your new caliper assembly...
It's pure physics: The higher braking force comes from the same fluid pressure (psi) generated by the master cylinder acting over a larger area (total area of all pistons). Force = psi x area. You have more area (to create that larger force from the same psi). That area times the distance the piston(s) move = volume. That volume being vacated as the piston(s) move outward = volume of fluid that has to fill the bore. That volume of fluid has to come from the master cylinder. To provide that larger volume of fluid, the brake pedal has to travel farther.

NOW - if you put a larger master cylinder in to provide more fluid for the same movement of the brake pedal, you will have returned back to the same braking effect for a given pedal pressure that you started out with. So you will have spent money on calipers and master cylinder to gain what? What is it that you are trying to accomplish?

That would be like paying a bunch of money for a super high differential gear ratio for acceleration, and then, because it hurt your fuel mileage, buying real big tires to get the engine rpms back down to where it used to be. The only thing that changed was your wallet now has a lot less money in it.


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post #15 of 19 (permalink) Old 01-13-2011, 07:26 AM
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With the 4 piston brake you get more even brake pressure distribution over the surface of the brake pad and less chance of overheating. Will it make a difference? Yes. However it will probably not be enough to justify the cost and time to install, especially for a daily driver.
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