G37 / FX50 Akebono Brake Retrofit

Joe has posted over at the org.

http://www.infinitifx.org/viewtopic.php?f=29&t=20054

Hello All-

I am happy to announce that we are starting to see the final parts start to arrive for the FX50 Front Brake Retro-Fit Kit. The kit includes all necessary parts to convert your standard '03-'08 model front brake to the factory FX50 big brake package.

As of right now I will have one kit available on 09/24/08, this one will go out to the first person to respond to this post.

If you want to be put on the waiting list for one please post you name below (no PM's to be put on the list please, gotta do it yourself).

All parts are OEM and will come with everything that is needed to do the install. I do not have a write up on the installation process yet but I would think most professional repair facilities will know how to make the conversion, everything is pretty straight forward. A big thanks to turbocad6 for doing the initial install and testing! Here is some more information on the kit itself:

-Four piston front caliper, left & right.
-Painted silver with "INFINITI" logo on face of caliper
-Comes with both rotors (14"), pad sets, hardware kit, and required nuts & bolts
-These are the same brakes that come on the 2009 FX50
We are still working on the rear kit and hope to have it available within the next 30 days. I will have a separate thread when the rear kits become available.

The price is $830.00, plus shipping...

So, if you are interested, please put your name on the list & I will contact you via PM to let you know when you're next.
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double post

Same as post 136 InfinitiScene.com - View Single Post - G37 / FX50 brake retrofit

GB will be listed here also when Joe gets the actual sets in.
 
the first sets of these brakes have begun to ship & we now have a slight issue with these brakes. I have 20" aftermarket wheels on my fx & never even thought of the possibility that these brakes wouldn't clear the stock 20" wheels, I mean my stock 20" wheels even cleared my 6 piston rotoras, so I never thought they wouldn't clear these brakes. I was more concerned with weather they would clear the OE 18's really. these brakes do clear the OE 19" wheel on the G37S...

I tried to get my hands on a 18" wheel to test but never quite got a chance to test clearance on an 18... the g37s with this same brake setup clears with there factory 19's so I figured they would be fine with the oe 20's at least. but now, these brakes have been shipped & installed on an fx with stock 20's & they do not clear. I was able to get my hands on a stock 20" wheel & confirm. I didn't have a chance to get an actual measurement but I'm thinking a 15mm spacer may do it, joe's sending a set out to see.

next week aiya will bring his 08 fx45 style wheel by to also check if they clear any different

not the end of the world or a total deal breaker, luckily the fx has some room to widen the track width anyway & still not have wheel clearance issues. many guys run spacers just for the more aggressive stance & look anyway. a quality spacer setup is very reliable & trouble free. if a reasonable spacer is required then these are still a great brake setup. now the question comes though, how will it be known which aftermarket wheels do & do not clear these brakes?
 
I guess you will have to go with a minimum offset number for clearance on all aftermarket wheels. So now we know that the 03-05 stock 20's with the +40 offset does not clear the upgrade kit. What about the 06-08 stock 20's, do they have a different offset?
 
don't know, I'll test fit 08's next week. don't think offset is enough indicator, my wheels are +30... I think it's more dependant on the shape of the wheel than offset really
 
If we can find a minimum inner clearance then that should be enough of an indicator, right? If yours are +30 and they do fit and mine are +35 and they were spec'd to fit the 8 pot rotora BBK, then I would assume it would be safe enough to say +35 is the min. requirement, no?
 
the shape & clearance of the wheel center have nothing to do with the backspacing though. backspacing is determined by the inner & outer rim lips. my +30's fit, OE +40's do not, but OE +50's of the new fx do obviously fit, so offset is not a determining factor. some wheels have more brake clearance than others, regardless of where the backspacing is. for example, my wheel center fits. if it was a +20 offset or a +40 offset, this wouldn't change the wheel center at all & it would still fit the brakes. in otherwords, the brake clearance needs to be measured independantly of offset.


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I found this diagram while I was looking for a builder of custom wheels, these are the measurments that are needed, along with measuring the wheel too. again, offset alone is not the deciding factor of weather these will or will not clear any particular wheel.
 
from looking at the above drawing, The clearance issue is from "A". Thats why a spacer (~+20 mm) would work w/ a stock 20" rim?

Correct me if Im wrong.:biggrin:
 
If and so there will be a need for spacers for a stock or aftermarket wheels to have this BBK, now we will have to worry about allingment issues.

Even now with my set up with 20mm Spacers in the rear and 15MM in the front I am having camber issues and there is only one member that has the key to get this for us..

Maybe a GB for a camber kit would be in order. I know that there are some bolts that Rookie used that were a custom Mnfg job....

Just keep this in mind and maybe have joe warn them about this..
 
A & J are both equally important measurements. I would think most, if not all 20's should be fine with the H measurement, the H measurement would be helpful for 18's though... we already know that 19's from the g37s fit but different wheels use different shaped inner surfaces...

I won't be able to get these measurements for at least a day or 2, my back is out & I'm kinda out of commission at the moment:frown:
 
bert, how sure are you that the spacers alone are causing your alignment issues? I don't think spacers alone should affect alignment, that would probably be more due to your drop...
 
turbocad6 said:
bert, how sure are you that the spacers alone are causing your alignment issues? I don't think spacers alone should affect alignment, that would probably be more due to your drop...
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The drop might have something to do with it. but the rear is not dramatically dropped. I left the rear eibacs alone...

Camber is off even more due to the spacers..

I have about another 15K left on my tires... ughgh:embarrassed:
 
From the doagram I Now see your point John. With these new concerns I do not feel this new upgrade will be an essy bolt on, at least until we can get a min. universal clearence spec.
 
Bert, spacers shouldn't affect alignment, by moving the wheel out 15-20mm the only effect it could have is very slightly creating more leverage on the spring & may cause a minute amount of drop, nothing significant & nothing to alter alignment, barely measurable if at all even. camber can't change cause the whole wheel is coming out an equal amount top & bottom. nothing from a spacer could alter the relationship to caster, the wheel is still on the same exact angle as it was, nothing would change

camber would be altered if the top or bottom came in or out independently like when lowering. when you lower, the top of the rear wheel will tuck in slightly & cause camber issues, even a small drop will alter camber because of the geometry of the control arms up & down. this is why there aren't really any camber issues in the front with lowering, cause there is no upper control arm & the front strut keeps the camber the same as it can only come down straight. the 09's will have camber issues even in the front if lowered cause they use upper & lower control arms in the front too


adding a spacer is the exact same thing as going to a more aggressive offset wheel. if I swapped my +30 backspaced wheels for +15 backspaced wheels it would move my wheels out the exact same as if I just added 15mm spacers to the +30's, neither would affect alignment really. I don't think spacers should have any affect on alignment at all...
 
HumbertoCALI said:
I highly doubt it Allan.

what are your numbers and haveyou checked your tire thread...?
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what turbo said :biggrin:.

I have checked the tire and they look good (its only been a few months) , But I have the alignment done at LMS and Steve and I took a drive afterward and he did not show any concerns about camber.

Im just posting what I experienced, results MAY vary.:wink:
 
I made this to show the relation of camber to wheel spacing so there is less confusion here, spacers are not going to affect alignment in any way. caster, camber & toe should be identical regardless of wheel spacing.


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lowering on the other hand will add negative camber in the rear & cause changes to the toe front & rear usually too. the toe is the biggest concern & the most important thing to correct after a drop. slightly more negative camber is not really such a bad thing & is usually increased with performance tuned cars to increase handling. it doesn't really cause huge tire wear issues, toe is the thing that usually eats up tires more than slight extra negative camber. if you drive your car really hard through turns often then a little extra negative camber can actually help tire wear, otherwise you'll find the outer edges of the tires wearing more really... too much negative camber can cause the car to be a bit jittery on the rough stuff though. negative camber causes each outer wheel to push towards the inside... both pushing equal & alls fine, but on bumps where one wheel may loose traction the wheel that looses traction no longer pushes while the oposite side still does. this can feel like the car is jutting left or right on bumps. slightly more negative camber isn't so bad, I usually shoot for the outer limits of the factory specs for negative camber but again, none of this is affected by wheel backspacing
 
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