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88-91 Prelude Big Brake Upgrade - 92-96 Prelude vtec calipers and 2007 mini cooper 11.0" Rotors

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1funryd United States of America
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88-91 Prelude Big Brake Upgrade - 92-96 Prelude vtec calipers and 2007 mini cooper 11.0" Rotors

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Post by 1funryd » 03 Jan 2019, 23:30

(Original thread: https://www.preludepower.com/forums/sho ... p?t=413017)


Ok so I decided to do my own bigger brake upgrade after many years of debating.

Here is what I did and what was simplest and affordable.

Its debatable on whether or not going bigger is going to help with stopping, for me I can feel that my stock setup is a little under powered with the H23a swap.

But I will test it myself and since I priced these parts out for relatively cheap I decided to take the plunge.

Total cost is just for the Front brakes, the rears are only going to get a bigger rotor and 5th gen rear brake pad as soon as I can get me the caliper adapter to push the stock caliper further out.
I do not want to mess with the parking brake and rather keep it fully funtional ebrake that can go back to stock should I choose too.

Front Brake setup: 92-96 Prelude vtec Brakes with 11.0" 2007 Mini Cooper 280mm 4 lug rotors.

Parts:
1. 92-96 Prelude OEM rebuilt calipers - Part numbers below to search
a. NuGeon 22-00923L Remanufactured Semi-Loaded Brake Caliper - Driver Side
b. NuGeon 22-00923R Remanufactured Semi-Loaded Brake Caliper - Passenger Side
2. Brake pads - ceramic
3. 2007 Mini Cooper 11.0" Rotors
Cost: $135.89 - shipped
All parts where purchased off of ebay, you really cant compete sometimes even with OEM rebuilt stuff. But from here on out if the calipers start to fail I will simple be able to replace the caliper with cores now.

Step 1. - Remove stock caliper
Step 2. - Remove caliper braket
Step 3. - Bend the dust shield backwards to clear the 4th gen vtec caliper bracket.
Step 4. - Purchase washers and new longer bolts. What I purchased were:
  1. 19mm head x 30mm length bolts
  2. 16 matching washers - 4 per bolt front side of bolt is 1.75mm - backside of braket between the rotor and bracket - 2.50mm washers
Step 5. - Get to work son!!! :lol:

Washers -
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Bolts -
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The stock Si rotors are 10.3" vs the 11.0" 2007 mini cooper rotors and 4th gen vtec rotors.

Here is the caliper bracket comparison:
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Compared the rotors face to face:
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Here is the stock 92-96 vtec caliper bracket bolted up to test fit.
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In order to get the bracket to sit right you will need to bend the dust shield in some areas like so:
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And then to setup the caliper bracket you will need to pre install the new bolt and washers like so:
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And then here is how it will sit afterwards:
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Here is the disc clearances once installed, and it clears just perfect with not touch at all:
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For the caliper itself, I used the bolt and crush washers that came with the caliper, and it bolts up just perfect, no need to change your line unless of course the line is bad and needs replacing.
The fittings fit in the same area and as long as you torque it down properly no leaks.
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Once you get the caliper braket setup then its just like replacing the stock brake pads.

Here is the final product after all is said and done.
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As you can see the new rotors cover the dust shield so it looks kind funny. :lol:


I still need to bleed the system since I ran out of time, so I will give my test drive feedback tomorrow or at least later on today.

I hope you all enjoyed this more detailed explanation and cost setup. :smilejap:


And final look with the rims back on and on the ground.
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Edited: 9-24-18 - Feedback after years of driving.
1. Stopping has been increase, I have not locked up the fronts yet, but I have slammed hard on them during some road tests.
I can say that it almost feels like an anti-lock system without the anti-lock.
I do get a dramatically reduced stopping time from full acceleration.
As been discussed for decades this is not a necessary upgrade for stock rims and motor, unless your boosted.
Since I have H22a swap I noticed that the OE setup was under powered, this setup has felt much better byte and reduced stopping time.
I do not have actual stopping times, nor distance testing, just my personal feel and response.

But for those looking for an bigger upgrade from OE parts, this is my choice and I need to re-iterate that this setup has been tested and tried from other members before me. 88SE Lude has done this write up before and a couple others and this was an updated re-write from my personal opinion and testing. I just wanting to credit the proper people.




Edited/Added on September 24th, 2018
Rear Big Brake Upgrade that allows you to keep the parking brake:

1 . Purchase 2002-2003 Civic/RSX Rear calipers with the mounting bracket. These will bolt right up to our rear knuckles.
Image

2. Purchase the rear rotors which are also 4x100 lug pattern and also are 10.25" in diameter.

3. Purchase 2002-2003 Civic/RSX brake pads and install no modding necessary

4. Remove the rear knuckle dust shield because it will rub against the rotor and calipers.

5. Mount as normal. The EP3/RSX OE caliper bracket will bolt to our knuckle and then mount everything back up. The dust shield needs to go due to the spacing of the rotors and calipers, other than that, this will allow for a 10.25" Rear brake upgrade while keeping parking brake.

Finished result - "pictures from - Lorenzo DiSante"
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Rear 2002-2003 EP3/RSX caliper no modding other than removing the rear dust shield.
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OEM Brake Rotor and Pad info:

FRONT DISC BRAKE ROTORS FOR 90-91 SI / 4WS/ ALB/ FI
Nominal Thickness (mm): 21 Outside Diameter (mm): 262

Manufacturer ---------------------------------Part Number
AIMCO----------------------------------------- 3182
ATE ---------------------------------------------CW21700
Beck Arnley -----------------------------------083-2211
Brembo 5 Digit P/N-------------------------- 25275
HONDA ---------------------------------------45251SF0000
RAYBESTOS ---------------------------------96021
WAGNER -------------------------------------BD61822


88-89 PRELUDE FRONT ROTORS

FRONT ReplacementDisc Brake Rotor for 2.0 Si FI / 4WS/ ALB
Nominal Thickness (mm): 21 Outside Diameter (mm): 262

FRONT ReplacementDisc Brake Rotor for 2.0 S CARB
Nominal Thickness (mm): 19 Outside Diameter (mm): 242



REAR DISC BRAKE ROTORS 88-91 ALL MODELS
Nominal Thickness (mm): 10 Outside Diameter (mm): 239

Manufacturer ------------------------------------------Part Number
Acura ----------------------------------------------------42510SH3G00
AIMCO------------------------------------------------- 3258
ATE -----------------------------------------------------CW10706
Beck Arnley -------------------------------------------083-2253
Brembo 5 Digit P/N -----------------------------------25199
HONDA ------------------------------------------------42510SE0000
HONDA ------------------------------------------------42510SE0010
HONDA ------------------------------------------------42510SH3G00
HONDA ------------------------------------------------42510SK3E00
RAYBESTOS------------------------------------------ 96068
WAGNER ---------------------------------------------BD61821

HAWK FRONT BRAKE PADS FOR 88-91 PRELUDES except 2.0 S CARB
HB242E.661 Disc Brake Pad; Blue 9012 w/0.661 Thickness; Front;
HB242G.661 Disc Brake Pad; DTC-60 w/0.661 Thickness; Front;
HB242N.661 Disc Brake Pad; HP Plus w/0.661 Thickness; Front
HB242F.661 Disc Brake Pad; HPS Performance Street w/0.661 Thickness; Front;
HB242Z.661 Disc Brake Pad; Performance Ceramic w/0.661 Thickness; Front;
770409 Premium OES; Disc Brake Pads; Front;



HAWK REAR BRAKE PADS FOR 88-91 PRELUDES
HB350M.496 Disc Brake Pad; Black w/0.496 Thickness; Rear;
HB350E.496 Disc Brake Pad; Blue 9012 w/0.496 Thickness; Rear;
HB350W.496 Disc Brake Pad; DTC-30 w/0.496 Thickness; Rear;
HB350G.496 Disc Brake Pad; DTC-60 w/0.496 Thickness; Rear;
HB350N.496 Disc Brake Pad; HP Plus w/0.496 Thickness; Rear;
HB350F.496 Disc Brake Pad; HPS Performance Street w/0.496 Thickness; Rear;
HB350Z.496 Disc Brake Pad; Performance Ceramic w/0.496 Thickness; Rear;
770564 Premium OES; Disc Brake Pads; Rear;

Source Thread: https://www.preludepower.com/forums/sho ... p?t=353746

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