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4 pot brake upgrade


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#1 Lunacy

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Posted 05 March 2011 - 02:10 PM

Hey guys
Just thought a few of you might be interested in my upgrade that ive just done.
Uses custom brackets, high grade bolts and nordlock washers.
Callipers are off a nissan 300ZX TT, and have been rebuilt with a new seal kit.
These work with stock size rotors.
Im using EBC yellowstuff pads (its a track car after all), but theres a huge selection of pads available for these callipers.
Brake lines are custom 1 piece Goodridge.
Only downside is they wont clear standard 7" rims, will need a 12-15mm spacer. 8" Rears on there should be ok though.
Im running 17x8.5" ROH rims anyway so no problem for me.

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Edited by Lunacy, 06 March 2011 - 12:36 AM.

86 Mitsubishi Starion EX RHD 4g63t DOHC TURBO track special
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#2 NotStock88

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Posted 05 March 2011 - 03:08 PM

Nice work. How would one go about purchasing the "custom brackets" you are using?
NOOB

#3 The Rabbit1

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Posted 05 March 2011 - 03:14 PM

can you share the cad design or whatever you used?
Replaced: vac advance, Delphi injectors, all vac lines, tees and check valves, all brake hoses and pads, Master cylinder, flex plate, torque convertor, T-stat(180), CTS, TPS, both fan switches to primary, rear speakers, door speakers
Overhauled: Distributor, TB, wiper system, electrical ground connections, dash switches, auto seat belt tracks, entire auto trans, entire fuel system, A/C system
Upgraded: 1st gen Mas, HKS bov, Walbro 255lph pump, S16G Turbo and increased boost to 15psi, Aeromotive rrfpr 13105, MSD 8910 Tach adapter, Comp Cams Fireball digital ignition system, 35 watt HID headlights (6000k) 1000w 4ch amp, 100A alternator, engine to chassis to battery ground (4ga), charging wire from Alt to Batt (6ga), 2.5" Catalytic converter, Magnaflow muffler, R134 A/C, Yellow top optima battery
Added: AEM wideband, rail mounted fuel pressure gauge, dual alternator fusible links
Eliminated: Cruise, ABS, Emissions, Vac pump

#4 Lunacy

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Posted 05 March 2011 - 04:44 PM

Nothing as flash as CAD here, just old fashioned trial and error using a wooden template  ;)
I may get some more brackets cut if i can find someone to do it cheaper than these cost as my engineers here RIPPED me off big time!
86 Mitsubishi Starion EX RHD 4g63t DOHC TURBO track special
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#5 RF600

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Posted 05 March 2011 - 10:03 PM

Please let us know about the brackets. Does it require a different master?
If it don`t go, CHROME IT.
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#6 Lunacy

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Posted 06 March 2011 - 12:35 AM

View PostRF600, on 05 March 2011 - 10:03 PM, said:

Please let us know about the brackets. Does it require a different master?

Yup if theres enough interest in them i may look at reproducing them sometime.
Ive changed the master cylinder just as a matter of course as im replacing or renewing everything on the car. Ive used a 1 inch cylinder off a Nissan Patrol 4WD, which only requires a little shaving to fit.
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#7 BOOSTED88tsi

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Posted 06 March 2011 - 01:48 AM

Sweet, i believe those are the same calipers off a vr4 3kgt. If you want to be cool you could get the ones that say mistubishi! awesome work
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#8 BC_99

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Posted 06 March 2011 - 07:31 AM

looks nice, I bet those would sell well in a gp, if you ever get them lasercut or water jetted. keep us posted please.

BC_99
Steering coupler replacement U-Joints are available here...
http://www.starquest...howtopic=145280

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#9 Metric-man

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Posted 06 March 2011 - 11:54 AM

How much more do those calipers weigh than stock ?
Will they clear a stock 16 inch rims ?
How much more surface area is being used as opposed to the stock pad on the stock rotor ?

Edited by Metric-man, 06 March 2011 - 11:55 AM.

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#10 Komeuppance

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Posted 06 March 2011 - 01:19 PM

Which type of z32 caliper did you use, aluminum or cast??  30mm type correct??

-Robert

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#11 Booost-N-LSX

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Posted 06 March 2011 - 08:52 PM

Also leaves room for big brake kits for a 300zx !!!
87 Starquest- 348 turbo LSX
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#12 Lunacy

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Posted 06 March 2011 - 10:07 PM

View PostMetric-man, on 06 March 2011 - 11:54 AM, said:

How much more do those calipers weigh than stock ?
Will they clear a stock 16 inch rims ?
How much more surface area is being used as opposed to the stock pad on the stock rotor ?

They are lighter callipers than stock as they are the alloy ones, how much by exactly im not sure but definitely lighter.
Surface area? Who knows. Pad size is similar but with 4 pots will be a much more even braking surface as opposed to single pot standard ones.
Will go bigger rotors eventually but these will suffice for the meantime.
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#13 Lunacy

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Posted 06 March 2011 - 10:09 PM

View PostKomeuppance, on 06 March 2011 - 01:19 PM, said:

Which type of z32 caliper did you use, aluminum or cast??  30mm type correct??

-Robert

Hey Robert
Yep 30mm Aluminium ones :) Theyre pretty readily available over here so a good choice i thought.
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#14 JamesR

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Posted 06 March 2011 - 10:11 PM

View PostLunacy, on 06 March 2011 - 12:35 AM, said:

Yup if theres enough interest in them i may look at reproducing them sometime.
Ive changed the master cylinder just as a matter of course as im replacing or renewing everything on the car. Ive used a 1 inch cylinder off a Nissan Patrol 4WD, which only requires a little shaving to fit.

US spec. (left hand drive) uses a different master cylinder/brake booster setup then the right hand setup, so the Nissan Patrol MC will not work.  I don't think a solution for a larger master cylinder has been found yet.  Do a search, buts its been several years when this subject was brought up way back when Oscars's big brake kit came out.

Edited by JamesR, 06 March 2011 - 10:14 PM.

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and a few others.

#15 Lunacy

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Posted 06 March 2011 - 10:16 PM

View PostJamesR, on 06 March 2011 - 10:11 PM, said:

US spec. (left hand drive) uses a different master cylinder/brake booster setup then the right hand setup, so the Nissan Patrol MC will not work.  I don't think a solution for a larger master cylinder has been found yet.  Do a search, buts its been several years when this subject was brought up way back when Oscars's big brake kit came out.

Oh gutted :( Yeah not having a LHD car i wouldnt have known that.
Then again im not sure how bad this would be with a new stock or rekitted stock MC. What piston size is the stock one in the USA spec cars?
86 Mitsubishi Starion EX RHD 4g63t DOHC TURBO track special
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#16 The Rabbit1

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Posted 07 March 2011 - 01:56 AM

View PostLunacy, on 06 March 2011 - 10:16 PM, said:

Oh gutted :( Yeah not having a LHD car i wouldnt have known that.
Then again im not sure how bad this would be with a new stock or rekitted stock MC. What piston size is the stock one in the USA spec cars?
15/16
Replaced: vac advance, Delphi injectors, all vac lines, tees and check valves, all brake hoses and pads, Master cylinder, flex plate, torque convertor, T-stat(180), CTS, TPS, both fan switches to primary, rear speakers, door speakers
Overhauled: Distributor, TB, wiper system, electrical ground connections, dash switches, auto seat belt tracks, entire auto trans, entire fuel system, A/C system
Upgraded: 1st gen Mas, HKS bov, Walbro 255lph pump, S16G Turbo and increased boost to 15psi, Aeromotive rrfpr 13105, MSD 8910 Tach adapter, Comp Cams Fireball digital ignition system, 35 watt HID headlights (6000k) 1000w 4ch amp, 100A alternator, engine to chassis to battery ground (4ga), charging wire from Alt to Batt (6ga), 2.5" Catalytic converter, Magnaflow muffler, R134 A/C, Yellow top optima battery
Added: AEM wideband, rail mounted fuel pressure gauge, dual alternator fusible links
Eliminated: Cruise, ABS, Emissions, Vac pump

#17 Lunacy

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Posted 07 March 2011 - 02:33 AM

View PostThe Rabbit1, on 07 March 2011 - 01:56 AM, said:

15/16

Not alot of difference then between 15/16 and 1" but without trying it id hate to speculate
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#18 Metric-man

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Posted 07 March 2011 - 03:04 AM

Posted Image
from top to bottom
colt, colt, and rx7
not sure about the rx7

The AU's have a different master available to them

http://www.austarion...econversion.pdf
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#19 Convette

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Posted 07 March 2011 - 07:30 AM

I had to use a setup from a mustang.  I have a master froma 95 cobra.  I need to do this.... as I think it would work very well.  Great work as usual Lunacy.

#20 Dave-O

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Posted 08 March 2011 - 02:53 PM

View PostConvette, on 07 March 2011 - 07:30 AM, said:

I had to use a setup from a mustang.  I have a master froma 95 cobra.  I need to do this.... as I think it would work very well.  Great work as usual Lunacy.

Good to know, I've got one still on my '94 Cobra parts car. Better not throw that away then!  :lol:

View Postdmyers151, on 08 June 2010 - 07:29 AM, said:

I see you got that Limited Edition ish.




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