How much do the stock FD rotors weigh?

http://www.modified.com/projectcars/...t_3/index.html

they did a brake swap and they say the stock rotors are 15 lbs each for the fronts and stock calipers are 6.20 lbs

Those these ebay ones are way over weight lol they swaped some porshe ones on that car and they weight little over 20 lbs for rotors for same size as these ebays

OE G37s rotors are ~29.5lbs according to racingbrake

http://g35driver.com/forums/brakes-f...cingbrake.html

Actually, I think you have to drill out the FD mounting points vs. Evo.

I say this because if you look at how you mounted your, the caliper mounts towards the wheel side vs. stock back side. If you drill out the evo side, then you would have to bolt thru the front side which you might have problem with... I think it would be easier to just take the thread out of the FD side.. But again, I'm just guessing via poor cell phone pics.. :)

That was a pretty neat writeup. Sounds like a good brake system.

has any one on this forum done this swap? were the brackets 1 off parts or are they a production part? it would be great if someone made these brackets so we could build a cheap bbk

Centre bore is negligible, Id say they would fit quite snuggly :)

G37 66.2mm
FD 67.1mm

d = 0.9mm

as for the 'cross over tube' I dont believe it will matter - brakes are hydraulic and will be under pressure - it'll work no matter what way up they are :scratch:

WOW! 0.9mm?? That's almost nothing.. LOL!

I now understand what 'cross over tube'. I also agree.. I don't think it matters.. But I'm no engineer :)

yup...i just had to sand the rust off the center of the hub of the FD and it fit on tight as a glove

Good stuff. Jumping on to follow the action.

the total diameter of the rotor with the caliper on it is about 15inches...but i would have at least a 15.25 to 15.5 inches of diameter inside the rim

This is the greatest discovery of this decade. You have my vote for the FD Hall of Fame.

So this wont fit under a 17inch rim?

He just stated...

Different style rims have different inner diameter. Best answer is to measure your own wheels. Better yet, to help others, post what kind of wheel you have and the measurement you get :)

curacaosfinest, To be more accurate, can you put a ruler and snap a pic so we could see the radius from the center of the wheel to the edge of the caliper?

Waiting for more pics of this set up..

i was thinking it was probably easier for you guys to measure the diameter rather than the radius cus its hard to get one edge of the rule exactly in the middle of the wheel

but i will take a bunch of pics with the measuring tape

the pics are coming guys, so sorry to get u guys hyped up before i installed everything lol....i'm just waiting on brake pads to come so i can put everything together

oo and if there is any real concern about that crossover tube, it can be unscrewed and switched with the bleeding nipples...but i just dont get how to bleed this system, do i bleed it from both nipples? or just one? or one at a time? can someone shed some light for me please!!!

Bleed from the inside, then outside nipple for each calipers.. Start off with the caliper farthest way from ABS (driver rear) to closest (passenger front).

http://robrobinette.com/bigbrake.htm

There is also some pertinent brake information in the article for anyone thinking of upgrading.

It never shows the picture of the caliper, but from SCC memory and the little bit of the caliper I can see it appears they are the Porsche "Big Reds". I run them on my track car. Fritz has also run these(I bought his set). Damian use to have a set that he tracked as well, which he sold to Andrew(GooRoo) and are on his car. I personally think it could be a cheap BBK. You use the 993TT Calipers and rotors. And you have to have a bracket made to fit the calipers on our cars(which an automotive machine shop should be more than capable of doing), and a custom hat made for the rotors to fit the offset(which Coleman Racing can make). BTW, at one point I fit these under my 17x8 Mazda BBS RZ wheels without issue.

If this was a problem it would be because the right caliper is on the left side ( or vise versa ), if the bleeder is on the bottom, just switch them. It does matter because it the bleeder is on the bottom they could be a bitch to bleed. I know this because the guy I bought the car from had the front calipers reversed.

ok guys i decided that i'm going to drill the threads out of the FD's mounting holes

the evo has the same size 12mm bolt but a different thread, so i'm just going to shave the threads in the FD's mounting holes until the EVO's bolts slide through but fit snuggly (no play room)

whatever you guys do dont go and get OEM bolts, i priced them at mitsubishi at $8 a bolt! and $3 for a washer!!

i went to my local machine shop (hardware stores dont carry this bolt size) and they had bolts in the correct size M12-1.75

i picked up 4 bolts, 4 spring washers, and 4 flat washers...make sure you hardened steel bolts
i payed $7.89 for everything lol...

heres a pic of what i bought
Oh and i hope you guys know that all the pictures that i post up are clickable thumbnails to the full size photos

http://i52.photobucket.com/albums/g3...h_IMG00420.jpg

ok guys i re-mocked up everything to try and work out any issues that there could be now so when i'm ready to bolt everything in, it goes smoothly

i took a bunch of better high-res pics so you guys could see

uploading them now...ALL THE THUMBNAILS ARE CLICKABLE TO LARGER IMAGES!!!

http://i52.photobucket.com/albums/g3...h_IMG_0102.jpg
http://i52.photobucket.com/albums/g3...h_IMG_0098.jpg
http://i52.photobucket.com/albums/g3...h_IMG_0099.jpg
http://i52.photobucket.com/albums/g3...h_IMG_0100.jpg
http://i52.photobucket.com/albums/g3...h_IMG_0103.jpg
http://i52.photobucket.com/albums/g3...h_IMG_0104.jpg

here is where you gota make the cut
http://i52.photobucket.com/albums/g3...h_IMG_0093.jpg

this made me sooooo happy
http://i52.photobucket.com/albums/g3...h_IMG_0107.jpg
http://i52.photobucket.com/albums/g3...h_IMG_0109.jpg

heres the measurements...not very good pics cus i had to hold the measuring tape and take the picture
http://i52.photobucket.com/albums/g3...h_IMG_0111.jpg
http://i52.photobucket.com/albums/g3...h_IMG_0112.jpg

i wouldn't presume to just switch them unless the pistons are not staggered

Thanks for doing all of this, I think I might try the same thing. However, I'd want to clean up/repaint the calipers before putting them on. Anybody know the best way to do this w/o losing the brembo logo?

Hi curacaosfines,
what ebay stor did you get the disks from iv tryed to find them and couldent, how soon before you can try them out?

the pistons are staggered...i switched the nipples and tube today, so now the larger piston is above and the smaller piston is below

you can buy the brembo hi-temp caliper decals on ebay for like 5 bucks i think

and dont repaint these with the autozone caliper paint....get the paint done at a body shop, cus then they'll paint it with the correct hi-temp paint and also clear it with a hi-temp clear...that way u get it looking OEM new

heres the link to the ebay store i bought mine from, they were like $240 or something like that

http://myworld.ebay.com/ebaymotors/ocautosports/

Are all the line the same as well?

Breaking results please!

Thanks again!

huh? i dont know if this is what you're asking but u have to get the G37s rotors, not the regular g37

Oh no i mean the brake lines for the brake fluid. I think this is the thread of the year, keep up the good work:)

Fronts are 6.5kg in the small, 8.5kg in the larger version.

Seems the 158mm C~C measurement on the lug mounted Brembos is pretty universal, a late Alfa Romeo "hot" version was the same and a pair off something Japanese, which I've got no idea about, was too.

this is basically the greatest discovery of the 21st century.

My used OEM front rotor weighs 14.8 lbs.

that i dont know yet but by the looks of it they are the same

ok so close to double the weight

good job bro!

thanks man, maybe you'll end up throwing this into your beast to try and stop that thing!!!

ur coming down for our churazco bbq on november 7th right?!

good job man, have you tried to find light weight g37 rotors?

Very interesting.

Can't wait to see what the field test data shows for breaking performance.

Keep up the good work!

Finding cross compadable components is just as exciting as new aftermarket accessories.

What do you mean by this?? Is there two different type of G37 rotors I should be looking for?? Or is this a typo?

there is the G37 and the G37S the "s" model has brembo's, hence the bigger rotor.

Thanks! I guess I didn't see the "S"..

actually they arent brembos, they are Akebono
so are the 370z brakes...i was surprised that they changed from brembo but ye all the OEM big brake kits from infiniti and nissan are made by Akebono well except the GTR of course lol

yup the g37s has the 355mm rotor

No. The '79 Toyota 4X4 caliper on the 240z was....

How far are you from finishing the install mate have you thought about what could be used for the rear brakes? I guess it would have to be Brembo’s but what about the disks?

Hmm, 355mm is a 14" rotor - the measurements you show are 13.2/13.3 or so - which is a 335mm rotor - the stock FD rotor is 11.8" if I remember correctly - and this is about an inch more in dia - so I think you have a 13.2" rotor - the ~330mm size rotors unless I'm missing something?

And oh - the Toyota calipers on the Z's - that was found in the 90's, so 20th century...::)

Ah yes now i remember why the tube had to be flipped... the staggered pistons LOL. The other problem I just remembered..... look at your hub here: Attachment 710748

I'm sure you noticed that you have to bolt them to the FRONT of the hub as you did in this next picture.... but look at the front of the hub mounts. Yup... guess what... only the BACK SIDE has been machined flat.... what you have done is mount the calipers to a NON PARALLEL plane caused by the uneven surface of the front of the hub. Basically, you need to PULL that assembly, take it to a machine shop, and have them machine as little off as they can parallel to the hub surface. This was another reason I gave up and sold off my calipers and rotors.
Attachment 710749

Also, how are you running a 323mm caliper, with a 355mm rotor? Did you shave some off of the outer disc of the rotor? The curvature of the caliper should not fit with that larger size disc as the arc of the circle is different. If I remember correctly, it was a pretty close fit for me using the 223mm stock evo rotor... how you are doing this with a 255mm I dont know... im either remembering wrong or youre doing something very different. Lastly, if you ARE using a 255mm rotor and the pads are contacting that outer edge, you have EXTREMELY higher leverage than even the aftermarket brembo kit for the FD (332mm rotor).... and will need to dial back the pressure to the front rotors ALOT to compensate, or your rears will be doing nearly nothing.

Not trying to be discouraging, but I've been there before and want to share what I've learned so you don't stumble upon the same problems I already found. -Heath