Want to upgrade the front calipers on my 94SI. Is there a direct Bolton upgraded caliper. Already have better rotors and lines.

 

Search the forum. There are so many threads on this subject. The answer is yes Acura legend 2 pot with a prelude 11" rotor re drilled

 

The prelude caliper swap only works on the DX knuckle, not the 94/95 EX/Si knuckle. Something could probably be machined to work, but that is charting into new territory.

Just getting good rotors and pads, upgrading the rear brakes, maybe putting the Integra RS master cylinder in and reducing weight a little might give you the braking you'd like. And make sure the system is well bled. Moisture and air ruin brakes.

 

I believe the CRV front knuckle will swap onto the Civic. It has the same rotors and calipers as the Honda Accord Wagon, Integra Type R and the Prelude. You'd have to run 5 lug front wheels though, but the rear 5 lug swap to match isn't that involved to make the front and rear match.

 

I believe the 94-01 integra calipers bolt on and have slightly larger piston

 

The ex/si caliper is the same part number as the integra rs caliper. I have read where people claimed the gsr (ABS) is bigger. I have EX knuckles on my sedan and had Integra calipers from some model and comparing them, the Integra calipers I had were just slightly larger looking (I didn't measure however and I'm not good at just eyeballing stuff...) but they may not be different. The DX caliper was noticeably smaller than the EX caliper though.

A larger piston effectively increases the pressure put on the pads. Putting a bigger brake booster or just pressing harder would do the same thing.

The Integra caliper bracket was different than the EX caliper bracket. The pad for the Integra has more friction material it looked like. Swapping this bracket in would allow the Integra pads to be used. Pads are not interchangeable. Due to being unemployed and having brand new Civic EX pads already and not wanting to drop another $30 for pads, I mated my good used Integra calipers with the EX bracket, knuckle and pads.

 

Thanks. Looks like a big brake kit is the only option. Maybe in the future.

 

Lets back up a little. '92 - '95 Si hatchbacks used the same small front brakes as the CX/DX/VX, Some '94 only Si hatches had ABS and used the same front brakes as an RS/LS/GS Integra. EX calipers depend on whether the car had ABS on not, ABS EX models had Integra RS/LS/GS calipers, non ABS models had a very similar caliper, but used a smaller caliper piston (the same sized piston as CR-V/ITR calipers, that's right the ITR uses a smaller caliper than the RS)

You really can't say EX/Si Calipers since in most cases they aren't the same thing.

 

Before we start talking about big brake kits, swapping calipers, and redrilling rotors, what kind of "better" rotors did you get? Have you looked into getting better pads?

 

Is the car in question an ABS model, or not?!

 

Alright, thanks. When I was looking at parts on the Advance Auto parts site, I was getting the same part number for a 1994 EX (non ABS) coupe and a 1994 RS Integra. Doing a little searching, you are right and while the parts can physically interchange, they are not correct, so I'm posting some part numbers and what they are used on just because I usually just read that the integra, ex and si civics came with the 10.3" rotors and the DX/LX,etc civic came with the 8.8". The prelude, itr, crv and accord use an 11" rotor.

So if I got this right we have the following setups. I'm posting the current right front caliper part number Honda lists right now for interchange and search purposes.

cx/vx/lx/dx and non-ABS SI hatches used 8.8" rotors and it's own small piston caliper (right front caliper part number 45018-SR3-A00RM)

non-ABS EX (1993-95) and 1994 Del Sol VTEC uses a 10.3" rotor and small piston caliper (right front caliper number 45210-SR3-V03)

1993-1994 4 door EX ABS uses right front caliper part number 45210-SR3-N33
This part appears to be unavailable and it was the final part number after being redirected through a couple replacements on the site. Again, right front caliper part number 45210-SR3-N33

The ABS equipped EX, 1994 Si hatch ABS, GS,LS, RS and GSR (non ABS and ABS) Integras used the 10.3" rotor with it's own larger 57mm piston caliper (45018-ST7-000)

ACCORD 4D '94-97 E2/V-6 E2, ACCORD 5D '91-93, ACCORD 5D '94-97, CR-V '97-01, ODYSSEY '95-98, PRELUDE '92-96, PRELUDE '97-01 and the '97-01 ITR use an 11" rotor. (right front caliper part number 45018-SM5-000)

ACCORD 2D '94-97, ACCORD 4D '90-93, ACCORD 4D '94-97 E2/V-6 E2, basically all except the 5 door wagon (right front caliper part 06452-SV1-505RM)

 

All ex/I calipers are the same from experience. Abs doesn't matter. Non abs ex calipers were larger than my original vx calipers. Also all 94-01 teg calipers are the same as ex/si except the fitting for the brake line is different. GSR calipers being larger is false.

 

They aren't. '96 - '00 Civics yes, but not '92 - '95

It does. Only the '94 Si with ABS had larger Integra front calipers.

That part is true.

Again, not true. '92 - '95 Si calipers (except '94 ABS) are the same small front calipers as the CX/DX/VX. And again, the non ABS EX calipers use a smaller caliper piston, feel free to check the part numbers if you don't believe me. I've had non ABS EX calipers side by side with Integra calipers, they are not the same.

I don't know if they're larger or not, but they are different, check the part numbers.

 

My car does have ABS and I already upgraded the pads when I did the powerslot rotors.

 

Upgraded the pads to what, though? Wearever Golds aren't "upgraded" pads.

and For the love of god, get rid of those damn slotted rotors.

 

Incorrect sir. I went through the Honda parts site and looked up part numbers and then searched the part number to find what it is used on.

if you wish to look the part numbers up I posted, it disproves your above statement.

I too thought there were just small and large brakes. But no, there is more to it.

Even the ABS/non-ABS thing. The knuckle may just have mounts for a bracket to hold a wire, but it's still a different part number.

 

Interesting. I literally *just* picked up a set of ITR calipers for the front.
I am currently running regular Integra knuckles/calipers/rotors.
I guess my question is: will braking still be improved despite the smaller piston?
If yes, is this because of the larger rotor required for the ITR calipers?

One of the biggest annoyances about this ITR front brake upgrade is that I'll have to get 15" wheels.
This piston thing has me wondering whether the braking improvement is worth the trouble. Any thoughts 94EG8?

Thanks!

 

This

 

Sorry man, I don't have a lot of solid facts for you, just some opinions based on educated guesses. As a guess I'd say you will have improved braking due to the larger rotors and IIRC the ITRs used larger pads. Honestly if it was mine I'd probably leave it as is. When I did the brake upgrade on my own '93 Si I deliberately went with parts from a '94 - '97 non ABS RS so everything would work as a factory setup with no custom brackets, no redrilled prelude rotors, no 4x114 or 5x114 wheels etc.

 

https://honda-tech.com/forums/suspension-brakes-54/brake-upgrades-96-00-civics-applicable-some-older-civics-integras-2374093/

^^ try that

 

Thanks man.
The ITR calipers I got are already machined to fit my knuckles, so the only headaches would be (1) getting rotors and (2) having to upgrade to 15" wheels. They are both a PITA for me because I seem to be warping rotors way too much (thank God for the 2yr warranty - next time I swap them I'll put money on top and get better quality blanks) and I am shooting for a clean, OEM look for my Hatch... and the little 14" HXs are great for that.

If I could only understand exactly how much braking would improve to justify such headache... oh well.

 

Have you tried buying OEM rotors right from Acura? They generally last forever. If that doesn'y work maybe look into an early JDM ITR brake swap, the 4x114 one, the early stock ITR wheels look a lot like stretched HXs or WedSport TC05s