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#16
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Re: Brake kits
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Oh and to add, WRX brakes don't really have any advantage over stock other than slightly better cost and availability possibly. They are still 2 piston up front and single piston calipers rear... slightly larger rotors and pad area in the rear but not much, front brakes are actually probably smaller. Last edited by 1986nate; 11-21-2010 at 04:04 PM. |
#17
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Re: Brake kits
We really need to look harder at nissan's parts bin for compatible parts. Subarus from the 90's share huge numbers of parts with nissan.
I'm guessing our best bet for bigger front brakes is in the 300zx turbo, but now that the GT-R is also arriving into canada that might be a place to investigate for upgrades along with the JDM Silvia line. I don't know enough about nissans larger non-performance cars to guess what might be good from them. |
#18
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Re: Brake kits
looks like the SVX is in bizzaro land with its 302X28mm rotors. Normal fare for the 300zx and skyline looks like 280mm rotors, while the 2006 WRX has 294x24mm. WRX rotors could be drilled for 5 114.3 pattern if they work. 2005+ STi is 326X30mm.
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#19
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Re: Brake kits
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__________________
-Jason (8/23/07-Present) 1995 Subaru SVX LSi (197k) Polo Green (#1102) 03/95 Mods: DDM Tuning 4500k 35w Low Beam HID, 100w H3 Bulbs, Extra Ground Cables, 15 minute $12.96 mod, svxfiles designed transmission mount (), sporting a "new" tail light bar, silver BBS rims, custom power steering cooler (one that doesn't dump ATF constantly), new negative lead cable, no more third or fourth gear (1977-Present) 1977 Chevrolet Corvette (81k) Silver (12/01/2011-Present) 2005 Subaru Outback 2.5i Limited 5MT (97k) I have a bad feeling about this. -Obi Wan Kenobi |
#20
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Re: Brake kits
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#21
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Re: Brake kits
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#22
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Re: Brake kits
I really don't think that modifying stock brake systems from other cars to fit our car is the best idea either. Even if someone WERE to get, say... 300zx brakes to fit, what would that gain you? The rotors are no larger than ours (they still have to fit a 16" wheel, right?) And the calipers wouldn't be much better either, would they? I mean, pretty much any other performance car than ran a 16" rotor was much lighter than the SVX. Now, I realize that a lot of people who WOULD want a BBK would probably have 17" or 18" wheels anyway, but that still means adapting something to the car from something else.
If you could find an aftermarket kit that fit from another car, you might be in business. But for now, I still saw the best BUDGET option is SS lines, drilled rotors, new DOT4 fluid, and pads of your choice. Now, you could piece together your own kit from say USbrake, Brembo, Stoptech, etc... but that's not for the faint of heart either. The only actual bolt-on alternative is the Movit kit. Sorry if I brought up something that's been gone over. I kind of just "skimmed" the post.
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Jesus is the remedy 2015 Expedition EL Ecoboost Ebony Pearl '95 Subaru SVX LSi Home of the Bontrager Works 22mm rear sway bar!! Last edited by Nevin; 11-27-2010 at 03:19 PM. |
#23
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Re: Brake kits
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I am personaly a HUGE fan of more more more rotor even as it pertains to buying the "crap" chinese rotors that just happen to be cast far thicker than the OEM stuff for some cars. More mass = less heat issues. That said a smaller diamiter rotor will cut off a non-trival amount of rotating and unsprung mass. Fixing thermal issues with better calipers, pads, rotors, lines and fluid is easier than finding a couple lbs a corner in unsprung mass. Just depends on what you are looking for. Cheap upgrades like heavy rotors and ok pads are best for daily drivers. Expensive pads, fluids, lines, etc best for those either under rules restrictions or only need a modest amount more performance there. Converting to the 300zx setup would be the next level above that or perhaps on par depending on difficulty and cost. Full aftermarket kits if done right are the step above that. Last edited by XT6Wagon; 11-29-2010 at 03:01 AM. |
#24
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Re: Brake kits
I don't disagree that the 300zx ones might be worth looking into, but you also have to compare the weight of the vehicles. I don't think the 300's were LIGHT, but I don't think they were as heavy as the svx, so I would still think that even though there are more pistons you may not get more stopping power out of it. And as was eluded to, you need ot take total piston volume into account or it can screw up your brake proportioning.
I found out that '06 mazda6 front rotors and calipers would bolt right onto my '89 mx6. So I did it because I needed brakes anyway, and I figured "Why replace when you can upgrade?" 11.5" vs. 10" rotors was a no-brainer to me. Well, they work pretty decent, but it has really thrown off the brake balance of the vehicle. It doesn't really bother me since I don't track the car, but the larger piston volume in the caliper just takes more time to fill, and messes with pedal feel/travel, as well as actual brake force applied. And I also have no problem going with larger rotors for just the reasons you said. I'm sure an "upgrade" from another car would work, but even if one WAS found to work, I still think there's a bit more to it than meets the eye. That said, has anyone looked into vr4 front brakes? That would be the best candidate I would consider as far as vehicle sizing/performance braking. In the probe community it was found a few years back that vr4 brakes would fit with minimal work. With 12.2" rotors IIRC, same bolt pattern, it's a good place to start anyway.
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Jesus is the remedy 2015 Expedition EL Ecoboost Ebony Pearl '95 Subaru SVX LSi Home of the Bontrager Works 22mm rear sway bar!! |
#25
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Re: Brake kits
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also FWIW Z32 4 pots are pretty much identical to Subaru 4 pots except the ears to bolt them on are spaced differently. and yes, you should never change the total piston area by much without a new proportioning valve. frankly I'm a firm believer that most people don't have the slightest idea what a set of good pads and good fluid will do for you. If you do that and still cook your brakes, then move on to something else. It's all to common in the subaru community to see people doing 4pot swaps to "upgrade their brakes" yet still continue to use crap pads.... Although there is some benefits to 4 pots that sliding singles and doubles cant have, such as pad changing without removing the caliper. (reason my track car will be upgraded to 4pots)
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94 Acura Integra GSR 97 Legacy Brighton - EG33 Swap still in progress 03 Silverado 2500 - Duramax |
#26
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Re: Brake kits
This thread on NASIOC is a really good bit of information. As long as your stock brakes are in good condition no matter what upgrades you do to them you won't be able to stop your car one inch shorter. As long as you can get the ABS to cycle you've maxed out the braking performance of the car.
You can bolt any Impreza/Forester caliper to our cars just fine. Brembo's, the Subaru 4-pots (which I'm fairly certain are exactly the same caliper body as the 300ZX TT 4-pots, just with different lettering)... The bolts all line up. The problem is that the SVX was designed for a larger and odd sized rotor, and Subaru did this by moving the mounting points for the caliper further out. So, if you bolt a Brembo caliper to an SVX it sits about 1/2" farther out than it would on an STi and consequently the rotor doesn't match up. You end up with some of your brake pad hanging out in space where there isn't a rotor.
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Chris 92 Ebony Mica LS-L "A Rolling Restoration": 223,250 KM - Sleeping 2007 STi 6MT, Stance GR+ coilovers, PWR Rad, JDM hood badge, svxfiles 6000K HIDs, JDM Clear Corners, $15/15 min mod, $20/20 min mod, Energy Swaybar Bushings, Hella Supertones horns, Gold STi BBS rims, Group A lightweight crank pulley, A/C system removed, Custom header-back exhaust, Hybrid carbon/metal rear sway bar, restored headlights with CCFL halos 2008 Subaru Legacy Spec B - Diamond Grey Metallic - Sold 2020 Ram 1500 Longhorn - Red Pearl |
#27
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Re: Brake kits
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Raceconcepts slotted only rotors New calipers SS lines Motul Superblue brake fluid I forget the pads I have off the top of my head I also removed the ABS system from my car That set up is plenty for any auto-x or short track events. If you are wanting to do events where you will be out for over 10 minutes straight then you might want to investigate some different options.
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Former: 1994 Barcelona Red(x2), 1995 Brilliant Red, 1992 Liquid Silver, 1992 Ebony(x2), 1992 Pearl White (x2) Current: 2017 Ford Raptor 2017 Kawasaki KLR 1995 Guards Red Carrera 1995 Spec-ish Miata - track car 1957 CJ-5 |
#28
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Re: Brake kits
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Edit: also makes it very easy for companies like Stoptech to offer an aftermarket kit since they wouldn't have to develop something new. Last edited by XT6Wagon; 11-29-2010 at 04:28 PM. |
#29
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Re: Brake kits
I agree that larger brakes really aren't needed unless you're doing some kind of endurance racing.
When I upgraded my own svx to SS lines, new fluid, ceramic pads, and slotted/drilled rotors, I was AMAZED at the difference. I would say that from 70-0 is better than any other car I've ever experienced firsthand. It's basically like throwing out an anchor!
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Jesus is the remedy 2015 Expedition EL Ecoboost Ebony Pearl '95 Subaru SVX LSi Home of the Bontrager Works 22mm rear sway bar!! |
#30
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Re: Brake kits
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__________________
Chris 92 Ebony Mica LS-L "A Rolling Restoration": 223,250 KM - Sleeping 2007 STi 6MT, Stance GR+ coilovers, PWR Rad, JDM hood badge, svxfiles 6000K HIDs, JDM Clear Corners, $15/15 min mod, $20/20 min mod, Energy Swaybar Bushings, Hella Supertones horns, Gold STi BBS rims, Group A lightweight crank pulley, A/C system removed, Custom header-back exhaust, Hybrid carbon/metal rear sway bar, restored headlights with CCFL halos 2008 Subaru Legacy Spec B - Diamond Grey Metallic - Sold 2020 Ram 1500 Longhorn - Red Pearl |
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