Integra Rear Discs on EK: Master Cylinder Question
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Integra Rear Discs on EK: Master Cylinder Question
The local scrapyard had an 'all you can carry' day today, and I grabbed a full rear disc and trailing arm assembly off an Integra to do a conversion on my 97 LX sedan. I've read the thread about this in the FAQ and I think I understand everything, except the master cylinder.
By the sounds of it I should definitely use the Integra master cylinder, but the mounting holes for it are kind of on a 45 degree angle, like at around say 2 o'clock and 8 o'clock, whereas my stock master cylinder bolts up straight across at 3 o'clock and 9 o'clock. The FAQ never mentioned needing the brake booster as well, so is this something I will also need to grab, or did I get some kind of funky system here?
By the sounds of it I should definitely use the Integra master cylinder, but the mounting holes for it are kind of on a 45 degree angle, like at around say 2 o'clock and 8 o'clock, whereas my stock master cylinder bolts up straight across at 3 o'clock and 9 o'clock. The FAQ never mentioned needing the brake booster as well, so is this something I will also need to grab, or did I get some kind of funky system here?
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Re: Integra Rear Discs on EK: Master Cylinder Question
Alright, I actually somewhat answered my own question, sorry, should have searched a bit harder. But the FAQ thread about "putting X brakes on your EK" says that if I just use Integra rears with my stock fronts then the stock master cylinder works best. Also only the spindle is needed, not the whole trailing arm.
Does anyone know if the Integra proportioning valve will work with my stock lines, or do I need adapters/flaring tool/some creative line bending?
Does anyone know if the Integra proportioning valve will work with my stock lines, or do I need adapters/flaring tool/some creative line bending?
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Re: Integra Rear Discs on EK: Master Cylinder Question
You can use a '98 - '01 Integra RS prop valve as well, they're the same style as a '96 - '00 Civic (same goes for the MC.)
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Re: Integra Rear Discs on EK: Master Cylinder Question
1) All of the proportioning valves are stamped the same on the exterior, so look the same, but are different on the inside, and
2) Any of the drum brake prop valves are set up differently inside so that they initially send more fluid to the rear to bring the shoes out against the drums, whereas with discs the pad is always touching the disc and this is not needed
I just want to make sure I get all my ducks in a row before I start pulling things apart, as this is my only car. And how much bending are we talking for the Integra prop valve to work? If it's nothing crazy then I don't mind working with it.
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Re: Integra Rear Discs on EK: Master Cylinder Question
Why would you want to bend lines if you don't have to, I am 100% positive the 96-00 hatchback valve is 4040 like the SI one. Also 94EG8 said the 98-01 rs is also the same so you have two options of bolt on valves as opposed to bending and reflaring lines.
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Re: Integra Rear Discs on EK: Master Cylinder Question
Heres a list of part numbers for prop valves btw:
46210-S04-952 VALVE ASSY., PROPORTIONING 1998 INTEGRA RS
46210-S04-902 VALVE ASSY., PROPORTIONING 2000 CIVIC CX Hatch
46210-S04-902 VALVE ASSY., PROPORTIONING 2000 CIVIC DX Hatch
46210-S04-902 VALVE ASSY., PROPORTIONING 2000 CIVIC DX Coupe
46210-S04-902 VALVE ASSY., PROPORTIONING 2000 CIVIC HX Coupe
46210-S04-902 VALVE ASSY., PROPORTIONING 2000 CIVIC SI Coupe
46210-S04-912 VALVE ASSY., PROPORTIONING 2000 CIVIC DX Sedan
46210-S04-912 VALVE ASSY., PROPORTIONING 2000 CIVIC DX-V Sedan
46210-S04-912 VALVE ASSY., PROPORTIONING 2000 CIVIC LX Sedan
46210-S04-922 VALVE ASSY., PROPORTIONING 2000 CIVIC GX Sedan
46210-S04-962 VALVE ASSY., PROPORTIONING 2000 CIVIC EX Coupe
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Re: Integra Rear Discs on EK: Master Cylinder Question
Alright, thanks guys, I'll keep an eye out for either the hatchback or a 98-01 Integra RS prop valve. But I'm just curious now, what is the difference between the hatchback and sedan prop valves? They have the same brake setups otherwise, so is there just slightly different proportioning to account for the heavier weight of the sedan?
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Re: Integra Rear Discs on EK: Master Cylinder Question
Thats what I can't figure out. As far as I can tell they have identical brake setups otherwise, it doesn't make any sense to me either, for whatever reason though the part numbers are different.
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Re: Integra Rear Discs on EK: Master Cylinder Question
No, that I understand, what I don't understand is the DX sedans using a different prop valve than the DX hatches and coupes, they still use small front brakes.
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Re: Integra Rear Discs on EK: Master Cylinder Question
However, I just did a quick check with part numbers on Majestic Honda to confirm, and what you say is correct. All of the coupes (including Si and base models) and hatchbacks have the same prop valve, while the sedans have a different one, which really make no logical sense. So looks like I'm looking for a prop valve out of any EK that is not a sedan.
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Re: Integra Rear Discs on EK: Master Cylinder Question
Also of note is that the part numbers for the Si and all other coupes and hatchbacks prop valves are all the exact same, even though the Si has rear discs and the others all have drum. I noticed a lot of the threads in the FAQ say that the Si has some special proportioning valve, but by part numbers this seems to not be true. So it looks like there is no real difference in proportioning between rear disc and drum setups.
Just thinking out loud here, but if an EK coupe with rear 9.4" discs factory has the same exact prop valve as a coupe with rear drums, then should that mean that I would keep my stock sedan drum prop valve if I switch to 9.4" discs? Seems the prop valving is more determined by weight (and possibly weight distribution) than type of braking system.
Just thinking out loud here, but if an EK coupe with rear 9.4" discs factory has the same exact prop valve as a coupe with rear drums, then should that mean that I would keep my stock sedan drum prop valve if I switch to 9.4" discs? Seems the prop valving is more determined by weight (and possibly weight distribution) than type of braking system.
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Re: Integra Rear Discs on EK: Master Cylinder Question
I alwasy used to reccomend 4040 until 94EG8 corrected me and shared some info, i dont get it, but hell one less thing i have to buy lol
The only thing i can think off is weight, but if this is the case the si is a higher weight then my dx and others, so why would I or someone else still have 4040?? Im sure honda had a good reason maybe another, im not sure, and neither is several season honda techs, they couldnt explain it at all.
The only thing i can think off is weight, but if this is the case the si is a higher weight then my dx and others, so why would I or someone else still have 4040?? Im sure honda had a good reason maybe another, im not sure, and neither is several season honda techs, they couldnt explain it at all.
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