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DOG the rolla hunter
20th May 2010, 08:53 PM
wondering if jdm front brakes will go onto adm struts or is it totally different shit. i have adm brakes and struts but the brakes are fucking depressing to look at. is it as easy as tracing down the discs ,calipers and caliper mounting brackets and BAM! they bolt onto my stub axels. any help is appreciated. any other upgrades that bolt on would be appreciated. cheers fellas:pinchme:

R&D Mechanical
20th May 2010, 08:56 PM
You want RX7 brakes. JDM ones are not that big and just vented.

DOG the rolla hunter
20th May 2010, 08:58 PM
i have ae71 brakes at the moment . these would be mammoth upgrade compared to this shit. they were ok before but now with sr its a bit sketchy

blake.
20th May 2010, 09:00 PM
jdm discs are the same size as adm but are vented,

and to answer your question yes the will bolt straight on the stub

blake.
20th May 2010, 09:01 PM
oh wait if you have ae71 they wont fit, i had the same problem the stub is to short. you'll need ae86 struts.

DOG the rolla hunter
20th May 2010, 09:02 PM
shit yeah. hard to find u reckon?i have xt130 lca ps arms and 86 struts all waiting to go in. brakes on these struts are shit though and before i waste money overhauling these calipers i would upgrade to jdm ones. im sort of half way there

Dom86
20th May 2010, 11:49 PM
JDM calipers are the same as ADM calipers I believe, correct me if I'm wrong.
The JDM discs are vented which is where the braking is improved over the ADM set-up.
The only other difference is the JDM pads aren't as thick as ADM, because of the thicker vented JDM rotor, so you will need to sand down ADM pads or buy JDM.
Therefor if your Sprinter struts have ADM calipers, all you need is JDM rotors, and do the caliper rebuild if they need them.
You can get rotors from a good local brake guy. RDA's are supposed to be better than DBA's.
Have a look in the sponsors section.
If you really want, I have some JDM calipers and RDA rotors for sale.
PM me.

ke70dave
20th May 2010, 11:54 PM
[QUOTE=Dom86;262110]JDM calipers are the same as ADM calipers I believe, correct me if I'm wrong./QUOTE]

unfortunately you are wrong:(

the Jap calipers are almost exactly the same, but they are a bit wider to accomodate the vented disc. not that much wider. but they are wider. (the vented rotor is 18mm, and i think the solid rotor is 12mm)

adm calipers almost fit on a vented disc, and some ppl have got thinner brake pads (GSL rally sport sells them) to allow the disc to fit in the ADM caliper.

standard ADM and JDM brake pads are exactly the same.

also you cannot get DBA jap ae86 rotors they dont have a listing, but you can get RDA (rda7500s is the number)

Konakid
20th May 2010, 11:55 PM
JDM calipers are wider to allow for the vented rotor

Get some QFM 750 degree pads, hi temp brake fluid, braided lines and decent slotted rotors and you will have a decent braking setup for the front.

With SR you will want an FC rx-7 brake upgrade with the 262 mm rotors though. AJPS bolt on kit, around 1000 bucks.

Dom86
21st May 2010, 12:01 AM
Well thats good to know. Thanks guys.
As Konakid said, go the FC upgrade. JDMs wont be up to the job of slowing a singing SR.

Dazzla86
21st May 2010, 12:20 AM
an with ya super dooper rx7 brakes your goin to need a bigger master cylinder too. R32 non abs, Pajero cos you pedal will feel like a fake boob, good but hard.

the master cylinder swap will bring the feel back into it yaaaaaaaaaaaaaaa

DOG the rolla hunter
21st May 2010, 07:40 PM
thanks fellas.

Low Style
22nd May 2010, 11:33 AM
I got adm calipers and jdm rotors. please list what is needed to have this as a decent setup

i will be getting braided lines soon. buit what else

ke_70
22nd May 2010, 11:47 AM
just get pads and grind them down

ke70dave
22nd May 2010, 01:50 PM
just get pads and grind them down

err...no...

dont grind them down, unless you use a mill.

GSL rally sport sells pads that are manufactured a bit thinnner for that setup.

Dom86
27th May 2010, 02:40 PM
Just incase anyone is interested, I measured some JDM and ADM calipers, and the JDM caliper are 5mm wider than ADM calipers.

ke70dave
27th May 2010, 03:04 PM
Just incase anyone is interested, I measured some JDM and ADM calipers, and the JDM caliper are 5mm wider than ADM calipers.

only 5mm???

geez the cut down brake pad option is starting to look good, thats only 2.5mm needs to be taken off each pad.

Dom86
28th May 2010, 05:09 PM
Yep that's it! I still had to grind down the replacement pads to put into the JDM caliper for some reason. Incidently, this is the reason I thought JDM and ADM calipers were the same.
Don't worry, I didn't use a grinder. I just rubbed them on on my garage floor till they fit.
Believe it or not thats what the guy at the shop said to do. He said it was perfectly fine as long as you keep the pads flat when you rub them, to get an even surface.
... and they worked just fine on the car too :)

DOG the rolla hunter
29th May 2010, 12:01 AM
rubbing them on the road does a better job and no mess. can you buy jdm rotors new?????????

blake.
29th May 2010, 12:23 AM
yea you can, i went to a lil trouble to get them tho.

ke_70
29th May 2010, 01:20 AM
rubbing them on the road does a better job and no mess. can you buy jdm rotors new?????????

have a bit of a search for the brake disc part no.s before you walk into a shop as they'll give you the usual ''we dont deal with your import car'' line

will make it so much easier

ke_70
29th May 2010, 01:22 AM
a grinder can be 10000x more accurate than any mill

blake.
29th May 2010, 01:41 AM
i got my jdm disks through the brake and clutch place on corine avenue in penrith

Grant #2
29th May 2010, 07:34 AM
Just FYI, we get these brakes as standard in the states and a lot of people have trouble with brake fade if the engine is modified very much. That being said, I guess it's impressive that such a small rotor will even work as well as it does. S14's have larger rotors and those fade with much less abuse.