Brake conversion

203930 Views 514 Replies 68 Participants Last post by Restomod, Oct 23, 2020

rsdeo

Discussion Starter · Dec 10, 2003 (Edited)

3

Brake conversion ***Now complete***

Swap #1 with wheel spoke clearance issues.

Hub:1990 to 1992 Infiniti M30 uses a floating disc and is 4x114.3. Must change studs to 12x1.5mm and center bore is 66.1mm, machine down to 60.1mm. Hub reg is 68mm. Will clear MPV disc.

Caliper:1990 to 1996 Infiniti Q45 2 piston.

Disc:1992 to 1995 4WD MPV redrilled to 4x114.3.

Napa Online

"# of Bolt Holes : 5
Bolt Circle Diameter : 4.5"
Brake Rotor Diameter : 10.86"
Brake Rotor Discard Thickness : 1.02"
Brake Rotor Thickness New : 1.1"
Brake Rotor Type : Disc Brake Rotor Only
Center Hole Diameter : 2.84"
Height : 2.52"
Maximum Lateral Runout : .004"
Vented / Solid : Vented"

Rock Auto

Swap #2

Hub:1990 to 1992 Infiniti M30 uses a floating disc and is 4x114.3. Must change studs to 12x1.5mm and center bore is 66.1mm, machine down to 60.1mm. Hub reg is 68mm. Will clear MPV disc.

Caliper:1990 to 1996 Z32 Nissan 300ZX Turbo or 1991 to 1996 300ZX NA 4 piston.

Disc:1992 to 1995 4WD MPV redrilled to 4x114.3.

Napa Online

"# of Bolt Holes : 5
Bolt Circle Diameter : 4.5"
Brake Rotor Diameter : 10.86"
Brake Rotor Discard Thickness : 1.02"
Brake Rotor Thickness New : 1.1"
Brake Rotor Type : Disc Brake Rotor Only
Center Hole Diameter : 2.84"
Height : 2.52"
Maximum Lateral Runout : .004"
Vented / Solid : Vented"

Rock Auto

Will add more later.

12-09-2003

Guys working on a front brake conversion for the MK2 that will be more affordable. Almost there. Will fit 15" and bigger wheels. There may be some limitations though.

Here is a sneak peek at it. The cardboard is temporary and is there for a reason, I'll explain later.

I should have everything worked out by the new year. Just waiting for parts, holidays to start and exams to finish.

Once completed I will post the conversion on the web so anyone can do it themselves.

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441 - 460 of 515 Posts

Muchbzy

· #441 · May 1, 2013

BillyM runs them and has tracked his car a couple of times and so does JohnB on his TC car. I just did them and I like them alot. I added the MKIII master cylinder and it brings the pressure to a stock feel. Just came back from the dragon and they were flawless.

rce311

· #442 · May 20, 2013

2

Picked these up. Last week: 1995 Q45 front calipers.

Adding them with MPV rotors I ordered:

Ill post up some more pics when I start drilling the rotors and grinding the hub.

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Muchbzy

· #443 · May 21, 2013

Get someone to grind the hubs for you.....ask me how I know....unless you have a pretty large grinder or wheel.

rce311

· #444 · May 21, 2013

I haven't measured anything yet, how much material has to be ground off of the hubs? And are the MPV rotors going to be hubcentric or will I need to find an adapter?

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BillyM

· #445 · May 21, 2013

Almost 1/2"...

Use a 60.1mm to 74mm plastic hub-centering ring and use lugnuts to pull the disk down solid.

--billyM

sietekk

· #446 · Jun 5, 2013

So has anyone actually done the 350Z/Q35 Brembo upgrade? I'm confused about the rears: are there Brembo calipers that fit with/without adapter on the rears? If this was done, what are the dimensions for the smallest rim?

Finally, has anyone performed the higher end swap options (see page 37) on a Cressida?

Thanks a lot guys! This thread is a feat of ingenuity. I really admire you guys a lot for this one.
Mike

rsdeo

Discussion Starter · #447 · Jun 5, 2013

350Z/G35 Brembo calipers are the same as used on R33/R34 Skylines. Just look for the posts I posted concerning the Skyline calipers in this thread.

Front Brembo calipers will bolt up straight to the strut, but shorter bolts are required than used with the Nissans. The only disc to date I've looked at that fits with this is from a Ford Falcon built in Australia.

Rear Brembo calipers won't bolt straight up and require adapters, so don't waste your time. If you really want bigger rear brakes, then go with the FC/FD front calipers and Z32 rear disc setup.

I have another interesting twist to all this, but far too busy to finalize it. It will be a great improvement.

As always this is a work in progress as I keep finding new components that work.

sietekk

· #448 · Jun 5, 2013

Thanks for the info rsdeo! Your contributions to all of this is really awesome.

sietekk

· #449 · Jun 5, 2013 (Edited)

Actually, I didn't quite read your post right. What front caliper setup would be the next step down from the Brembos that will work well with the FD/FC caliper-Z32 rear disk setup? I need this to be as bolt-on as possible too...

rsdeo

Discussion Starter · #450 · Jun 5, 2013

Just go with the Q45 front upgrade and leave the rear stock. The Q45 is a much heavier and more powerful car than yours and it will work great for you.

BillyM

· #451 · Jun 6, 2013

^ What he said. As you increase front braking, you increase weight transfer, meaning you have less weight/tracking from the rear wheels, so increased rear braking is unnecessary.

I run Q45/MPV combo on the front of my full-weight 360rwhp mk2, and it sees plenty of lap days with excellent result. Not the best, but definitely the best in the $350-700 front brake upgrade range ($350 is a reasonable guess on the conversion).

--billyM

rce311

· #452 · Jun 6, 2013

Can even drill your own rotors to really save money. I have about $125 in mine so far. And all I have left is to grind the front hubs and install.

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BillyM

· #453 · Jun 6, 2013

You get to drill rotors in your living room?!

Lucky!

--billyM

4SFED

· #454 · Jun 6, 2013

Carpeted shop?

IDreamOfSupra

· #455 · Jun 6, 2013

That looks about like how I did mine, minus the carpet lol.

rce311

· #456 · Jun 6, 2013

BillyM said:
You get to drill rotors in your living room?!

Lucky!

--billyM

Yeah yeah billy! You've seen my living situation. Lol. I have car parts on the bed, drill rotors in the living room, and solder wiring at the kitchen table. No room on the porch to work right now cause it full of celica gt parts, rear louvers, and other misc overstock parts from pull-a-part. Lol.

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BillyM

· #457 · Jun 6, 2013

I am SO JEALOUS!

I'd get kicked out of the freakin' house.

--billyM

suprachick83

· #458 · Jun 7, 2013 (Edited)

Billy, I am awesome wife who likes Supras, what can I say.

Supra parts welcome!! But no it wasn't the living room. He isn't that lucky.

solid693

· #459 · Oct 18, 2013

since im on vacation i wanted to finally start doing some upgrades on my car. someone posted earlier, a late Q45 and catera setup. what else is onvolved in this?
like everyone else i want the least machining and spacer junk possible. it sounds like all i need is the caliper, rotor and studs? can i use my techanfit brakelines?

rce311

· #460 · Oct 18, 2013

Not sure. I know the nissan lines work great.

95 q45 calipers, use stock mk2 caliper bolts to mount.

94 mvp 4WD rotors. I got mine on ebay for $80 for the pair, slotted and cross drilled.

Take grinder, bandsaw, file, whatever and cu off the outer 1/2" or so of the hub.

Drill press new holes (4x114.3mm) into rotor.

As long as the holes are perfectly centered, you should be fine.

Hammer out old wheel studs.

Install the longer studs mentioned previously in this thread.

Bolt everything together, bleed brake lines, and enjoy. Did mine in an afternoon.

My total investment: $130. Including braided ss brakelines.
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