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Forum nameHandling/Suspension
Topic subjectGTO Caliper Fitment?
Topic URLhttp://forums.2gnt.com/dcboard.php?az=show_topic&forum=6&topic_id=27262
27262, GTO Caliper Fitment?
Posted by foggy45, Dec-31-69 06:00 PM
anybody know if the calipers from a mitsubishi GTO will fit our car?
engine code is 6g72 so its the same as the 3kgt. chassis code is z16a if that matters.

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&rd=1&item=7979893049&category=42605

thanks in advance
27263, RE: GTO Caliper Fitment?
Posted by EclipseTenzoR, Dec-31-69 06:00 PM
you will probably need special brackets to mount them on. Are they 2 or 4 piston?
27264, RE: GTO Caliper Fitment?
Posted by foggy45, Dec-31-69 06:00 PM
they look like 4 piston. course i have no idea what to use for rotors. LOL!
27266, RE: GTO Caliper Fitment?
Posted by Ducking_Fumbass, Dec-31-69 06:00 PM
Are you referring to the turbo or the nonturbo 3000GT?
27267, RE: GTO Caliper Fitment?
Posted by BumpinTalon, Dec-31-69 06:00 PM
they make brackets, intented to convert 3000GT non-turbo cars' brakes to the twin turbo cars' brakes. those same brackets can be used on DSMs to fit those calipers onto our car, so then you get absolutely gigantic brakes for not that much money. 12.5" rotors up front with really nice calipers :D I think the rears are 11.7" but I'm not sure.

I haven't been able to find the brackets again, but I do know they exit :D you will definitely need a certain kind of rim to fit those brakes, though, I think it was FlyinESi that said his HP Racing Evos wouldn't clear the calipers on his friend's Stealth RT.
27268, RE: GTO Caliper Fitment?
Posted by foggy45, Dec-31-69 06:00 PM
yea i found them! there out of stock though. we'll see if i get the calipers for a reasonable price.

http://www.electronicauto.com/products/2gttbrakeconversion/brackets.htm
27269, RE: GTO Caliper Fitment?
Posted by BumpinTalon, Dec-31-69 06:00 PM
there are guys on dsmtuners who got even bigger brakes on there... 13.1" with the same calipers! they made their own adaptor brackets though.
27270, RE: GTO Caliper Fitment?
Posted by turbo8u, Dec-31-69 06:00 PM
Originally posted by BumpinTalon
they make brackets, intented to convert 3000GT non-turbo cars' brakes to the twin turbo cars' brakes. those same brackets can be used on DSMs to fit those calipers onto our car, so then you get absolutely gigantic brakes for not that much money. 12.5" rotors up front with really nice calipers :D I think the rears are 11.7" but I'm not sure. I haven't been able to find the brackets again, but I do know they exit :D you will definitely need a certain kind of rim to fit those brakes, though, I think it was FlyinESi that said his HP Racing Evos wouldn't clear the calipers on his friend's Stealth RT.


you realize hwo many people have tried this and failed?

it doesnt fit

a guy on neons.org was selling kits for awhile, but yea...you need custom mounting brackets to get the 3kgt vr-4 calipers to work on a 2g.

27271, RE: GTO Caliper Fitment?
Posted by BumpinTalon, Dec-31-69 06:00 PM
Originally posted by turbo8u
Originally posted by BumpinTalon they make brackets, intented to convert 3000GT non-turbo cars' brakes to the twin turbo cars' brakes. those same brackets can be used on DSMs to fit those calipers onto our car, so then you get absolutely gigantic brakes for not that much money. 12.5" rotors up front with really nice calipers :D I think the rears are 11.7" but I'm not sure. I haven't been able to find the brackets again, but I do know they exit :D you will definitely need a certain kind of rim to fit those brakes, though, I think it was FlyinESi that said his HP Racing Evos wouldn't clear the calipers on his friend's Stealth RT.
you realize hwo many people have tried this and failed? it doesnt fit a guy on neons.org was selling kits for awhile, but yea...you need custom mounting brackets to get the 3kgt vr-4 calipers to work on a 2g.


then you can make your own brackets and use even bigger brakes.
http://www.dsmtuners.com/forums/showthread.php?t=184965&highlight=3000gt+brakes
27272, RE: GTO Caliper Fitment?
Posted by prop7459, Dec-31-69 06:00 PM
Not only the brackets you will have to get but also at least 8.5 wide rims (forgot the offset) for clearance for the caliper since that the VR4 rim width. For the neon guy I do not think you can go wider than 8" without doing some serious modifications. If we can use the 3KGT NT guys calipers and 3KGT NT can use the VR4 calipers besides the brackets how this setup would not work for us:+ . Correct if I'm wrong on this?:
27273, RE: GTO Caliper Fitment?
Posted by foggy45, Dec-31-69 06:00 PM
exactly what i was thinking bro! :thumbsup
27274, RE: GTO Caliper Fitment?
Posted by thedawg, Dec-31-69 06:00 PM
Originally posted by prop7459
We can use the 3KGT NT guys calipers and 3KGT NT can use the VR4 calipers besides the brackets
how this setup would not work for us:+ . Correct if I'm wrong on this?:


You're wrong on this. You need special brackets, special wheel spacers, and special wheels. The brackets have to be custom made, and rarely work right.

Don't bother wasting your time, it'd be better spent making adapter brackets for Corvette calipers, or buying 6-pot Wilwoods made specifically for our cars.
27275, RE: GTO Caliper Fitment?
Posted by Ducking_Fumbass, Dec-31-69 06:00 PM
Originally posted by thedawg
Don't bother wasting your time, it'd be better spent making adapter brackets for Corvette calipers, or buying 6-pot Wilwoods made specifically for our cars.


But... but... but... those don't say "MITSUBISHI" on them! WAAAAAAH! WAAAAAAAH! WAAAAAAAAH! :cry

:7
27278, RE: GTO Caliper Fitment?
Posted by BumpinTalon, Dec-31-69 06:00 PM
Originally posted by thedawg
Originally posted by prop7459 We can use the 3KGT NT guys calipers and 3KGT NT can use the VR4 calipers besides the brackets how this setup would not work for us:+ . Correct if I'm wrong on this?:
You're wrong on this. You need special brackets, special wheel spacers, and special wheels. The brackets have to be custom made, and rarely work right. Don't bother wasting your time, it'd be better spent making adapter brackets for Corvette calipers, or buying 6-pot Wilwoods made specifically for our cars.


its this kind of attitude that prevents new and exciting things from getting done...
27279, RE: GTO Caliper Fitment?
Posted by foggy45, Dec-31-69 06:00 PM
with 2 CNC Bridgport clone milling machines and a CNC lathe in my garage i dont think i will have a problem with the brackets or the spacers. and i will definatly make a CAD copy and diagram of anything fabricated from this project avaliable to all who want it.
now i just have to get calipers. . . .
27280, RE: GTO Caliper Fitment?
Posted by Ducking_Fumbass, Dec-31-69 06:00 PM
Originally posted by BumpinTalon
Originally posted by thedawg
Originally posted by prop7459 We can use the 3KGT NT guys calipers and 3KGT NT can use the VR4 calipers besides the brackets how this setup would not work for us:+ . Correct if I'm wrong on this?:
You're wrong on this. You need special brackets, special wheel spacers, and special wheels. The brackets have to be custom made, and rarely work right. Don't bother wasting your time, it'd be better spent making adapter brackets for Corvette calipers, or buying 6-pot Wilwoods made specifically for our cars.
its this kind of attitude that prevents new and exciting things from getting done...


Prevents new and exciting things from getting done? I think that Corvette brakes are pretty exciting...

27282, RE: GTO Caliper Fitment?
Posted by foggy45, Dec-31-69 06:00 PM
you mean some like this?
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&category=33563&item=7978942435&rd=1

now THAT would be exciting and new!
27283, RE: GTO Caliper Fitment?
Posted by Ducking_Fumbass, Dec-31-69 06:00 PM
I can just see the airbags deploying on a hard brake... :P
27314, RE: GTO Caliper Fitment?
Posted by thedawg, Dec-31-69 06:00 PM
Originally posted by BumpinTalon
Originally posted by thedawg
Originally posted by prop7459 We can use the 3KGT NT guys calipers and 3KGT NT can use the VR4 calipers besides the brackets how this setup would not work for us:+ . Correct if I'm wrong on this?:
You're wrong on this. You need special brackets, special wheel spacers, and special wheels. The brackets have to be custom made, and rarely work right. Don't bother wasting your time, it'd be better spent making adapter brackets for Corvette calipers, or buying 6-pot Wilwoods made specifically for our cars.
its this kind of attitude that prevents new and exciting things from getting done...


It's not an attitude, nor even an opinion. I'm stating simple facts.
Have you looked at what sort of clamping pressure and load distribution the 3kgt 4-pot (1989 design) gets you over the Wilwood 6-pot (2004 design)? Or even how little of a gain they give you over the 2-pot GSX calipers? Have you seen two different people have custom 3kgt caliper brackets fail within a month, after in the end spending twice the price of a wilwood kit?

I've ridden in a 2gnt with 6-pot wilwood fronts, and 4-pot wilwood rears. There's simply no reason, for the money, to do anything else if you're serious about stopping.

If your idea of new and exciting is killing yourself from hokey-ass homemade shit, by all means, go for it. Break a leg.
27315, RE: GTO Caliper Fitment?
Posted by Ducking_Fumbass, Dec-31-69 06:00 PM
Well, it would be nice to get rid of those goddamned floating pin calipers and replace them with some kind of a fixed caliper. The reduction in compliance alone is worth it.

That being said, at least do it smartly.
27316, RE: GTO Caliper Fitment?
Posted by MCubed45, Dec-31-69 06:00 PM
i can lock my wheels with my GSX calipers. the only reason to get anything bigger would be for better head disappation if you auto X. the fact that you cant tap your brake pedal and lock your wheels does NOT mean you have more stopping power. stopping power is measured in the DISTANCE it takes your car to stop. if you can already lock your wheels then the weak point in your braking system is TRACTION - not the brakes.

have you even taken into consideration the braking distribution? if you can lock up your fronts long before your rears you've actually made your braking WORSE. in an ideal system you want all 4 wheels on the verge of locking up to get the maximum stopping potential. that's what ABS does. it keeps the wheels on the verge of locking. using brakes not intended for your car really fucks up your ABS system as well. it isn't made to compensate for the different calipers. additionally if you can easily lock up your wheels with minimal pedal travel you've also DECREASED the range within which the ABS system can modulate. instead of a wide range from minimal to maximum braking you now have OFF and ON. that's bad.

a lot of big brake kits make people think they've drastically improved their braking power b/c after they're installed they can lock their wheels with minimal pedal travel. all you've really done is decrease the operational range of your brake pedal. with your old brakes you could probably lock your wheels by flooring the brake pedal. now it locks when you push it say - half way down. your brake pedal now has half the operational range. your braking hasn't really improved at all. in fact with a lot of big brake kits you'll actually find an INCREASED stopping distance. but most people never compare their stopping distance - they just go by how the brake pedal feels. which tells you absolutely nothing.
27321, RE: GTO Caliper Fitment?
Posted by Ducking_Fumbass, Dec-31-69 06:00 PM
The cruelty of it all is that when you make the front brakes less effective, you require less braking in the back, because of forward weight transfer.

I think that in this case, the only difference (between the GSX setup and the VR-4 setup) is rotor size, and caliper stiffness. For all intents and purposes, the caliper stiffness is irrelevant for everything, except for pedal feel.

The difference in rotor size, however, is about an inch. I think that a car with a VR-4 brake setup would enough extra weight transfer forward that the stock rear brakes would be sufficient. If not, go for a good solution, and get a proportioning valve.

Stock brakes are hideously forward-biased anyways. It is better, for most drivers, to lock up the fronts first. If you don't believe me, crank on your parking brake on the highway and see what happens.

It all comes down to tires, though. What can your tires handle for longitudinal acceleration?
27331, RE: GTO Caliper Fitment?
Posted by MCubed45, Dec-31-69 06:00 PM
Originally posted by MCubed45
the only reason to get anything bigger would be for better head disappation if you auto X.


haha i meant "better HEAT"

freudian slip i guess :shrug
27333, RE: GTO Caliper Fitment?
Posted by BumpinTalon, Dec-31-69 06:00 PM
honestly auto-x is kind of taxing on your brakes, but the top speed I could ever expect to see is maybe 85km/h on the slalom section... fade is not an issue here. stock slotted rotors with half decent pads would work just fine.
its in road course racing where big brakes really shine.. also think that by the time you have decided to go nuts on brakes, you are probably a track whore and try and fit in laps wherever you can and you probably already own racing tires that have much much higher traction limits then street tires do and therefore can actually take advantage of the huge amount of braking force your brakes can generate.
27343, RE: GTO Caliper Fitment?
Posted by thedawg, Dec-31-69 06:00 PM
Originally posted by BumpinTalonits in road course racing where big brakes really shine.. and you have much much higher traction limits then street tires do and therefore can actually take advantage of the huge amount of braking force your brakes can generate.

And sometimes, in the battle of Road Course Track vs. Sticky Tires and Big Brakes...
the Track still wins. }(

27352, RE: GTO Caliper Fitment?
Posted by BumpinTalon, Dec-31-69 06:00 PM
Originally posted by thedawg
Originally posted by BumpinTalonits in road course racing where big brakes really shine.. and you have much much higher traction limits then street tires do and therefore can actually take advantage of the huge amount of braking force your brakes can generate.
And sometimes, in the battle of Road Course Track vs. Sticky Tires and Big Brakes... the Track still wins. }(


OUCH
that sucks :D
our road course, in the dry, owns any tire.. too much VHT and rubber on it since there is a chicane on what they usually use as a drag strip.. it eats everything that doesn't move in straight lines
27355, RE: GTO Caliper Fitment?
Posted by Ducking_Fumbass, Dec-31-69 06:00 PM
Originally posted by BumpinTalon
chicane on what they usually use as a drag strip


EEP!

Who thought that was a good idea?

<shudder>

<collapse>
27356, RE: GTO Caliper Fitment?
Posted by BumpinTalon, Dec-31-69 06:00 PM
Originally posted by Ducking_Fumbass
Originally posted by BumpinTalon chicane on what they usually use as a drag strip
EEP! Who thought that was a good idea? <shudder> <collapse>


it is an extremely long straight... the hobbyist guys who do trackdays use the chicane, the guys in real race cars do not.. the real race cars can hit 180mph on that straight :)
27384, RE: GTO Caliper Fitment?
Posted by Ducking_Fumbass, Dec-31-69 06:00 PM
Sounds like fun. I'm working on a formula first right now. It could probably hit 60 or so on that straightaway. :P
27385, RE: GTO Caliper Fitment?
Posted by BumpinTalon, Dec-31-69 06:00 PM
Originally posted by Ducking_Fumbass
Sounds like fun. I'm working on a formula first right now. It could probably hit 60 or so on that straightaway. :P


right on. personally I believe my car would have trouble getting to 90 on that straight.
27386, RE: GTO Caliper Fitment?
Posted by Ducking_Fumbass, Dec-31-69 06:00 PM
If it's a long enough sraight to run a drag race on, I'd be willing to bet that the FFirst would get up to more than 60MPH. It has an equivilant power to weight ratio to a 3100 lb. car with ~215HP, but the aerodynamics are better (smaller frontal section).

Which track are you referring to, if I may ask? I mightneed to take this formula out there and see for myself. ;)
27387, RE: GTO Caliper Fitment?
Posted by 97whitESi, Dec-31-69 06:00 PM
back on topic, dont mitsu diamante brakes bolt right up? i remember reading that somewhere
27389, RE: GTO Caliper Fitment?
Posted by Ducking_Fumbass, Dec-31-69 06:00 PM
I think that this topis has already been beaten to death, but yes, the Diamante brakes bolt up, as they use the same 2-pot caliper as does the non-turbo 3000GT, the AWD DSMs, etc...
27390, RE: GTO Caliper Fitment?
Posted by BumpinTalon, Dec-31-69 06:00 PM
its Race City in Calgary, AB Canada... :D
27393, RE: GTO Caliper Fitment?
Posted by Ducking_Fumbass, Dec-31-69 06:00 PM
What the fuck... maybe I will go on an open track day some weekend. :P
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