[oldman]

I am working on a rear rotor upgrade for P10/P11. So far I have found that I can get an upgrade from the stock 258mm rotor to a 290mm rotor. This means we can go from a 10.16 inch rotor to a 11.4 inch rotor, that is over an inch bigger.
We would use the stock caliper/bracket with a custom dogbone. The purpose of this upgrade is only to better match the look of big front brake upgrades. This rear upgrade would require the use of at least a 16" wheel. The cost of this upgrade would be between $100-150 depending on current market material prices. You would expect to get 2 rotors and 2 dogbones only.
Is this a big enough rotor for you guys? Please vote or give your opinion.

 

[Kazmi]

I don't know about others but I would seriously go for something that would fit under 15"s......anything bigger than that on a stock motor would be overkill.....

 

[oldman]

I don't know about others but I would seriously go for something that would fit under 15"s......anything bigger than that on a stock motor would be overkill.....

Well, keep in mind this upgrade is for those of us with bigger front brakes and our stock rears look puny in comparison. So...the rear upgrade is for looks, not really for performance. Although by going with a taller rotor you should see more effective rear braking power so I would recommend staying with stock/oem pads on the rear of the car.

 

[paNX2K&SE-R]

If you are able to provide 4x100 rotors for these kits then you can cash in on the b13 market too

 

[oldman]

If you are able to provide 4x100 rotors for these kits then you can cash in on the b13 market too

I could work on that but have too many projects going on right now. It's a great idea, thanks.

 

[oldman]

Stock rear brake setup under 16 inch wheel:

Big rear rotor under same 16 inch wheel:

 

[oldman]

Please excuse the rusty rotor, it's not meant to be used on the street, just for test fitment.

 

[gEE805]

nice nice man......hmmm i like this idea for having bigger rear to match the front big ones im getting through with the Gb on babk's hmmmm when you plan on getting this together by/end date?and i would give two options for the rear man.....like i have 19's so i would kinda want bigger then that yet not over kill :0P

 

[oldman]

nice nice man......hmmm i like this idea for having bigger rear to match the front big ones im getting through with the Gb on babk's hmmmm when you plan on getting this together by/end date?and i would give two options for the rear man.....like i have 19's so i would kinda want bigger then that yet not over kill :0P

I believe this kit can be available by end of August.

Need bigger than this? It's possible but you'll have to deal with other issues like - is the brake fluid line long enough? is the ebrake cable long enough? I suppose it's worth a try since the rear wheels don't turn so don't need extra long cables and lines. But then we have to use custom rotors like from Wilwood, which will need matching calipers also from Wilwood.

 

[Yahnozha]

damn, thats a nice size...if you need any help making that dogbone, let me know. Nice that your using the stock calipers, it keeps the ebrake intact.

Yep, the issue going with wilwood components is that of the ebrake and then cost.

Question, do you know if there are any two piston rear calipers like the Q45 ones (front) that wil fit the rear?

 

[trbobrk]

g35 brembos are 2 piston rear brake, 323mm vented rotor.

 

[oldman]

g35 brembos are 2 piston rear brake, 323mm vented rotor.

Yeah, but do they have an attachment for our style ebrake cable?

 

[oldman]

Question, do you know if there are any two piston rear calipers like the Q45 ones (front) that wil fit the rear?

I'll check my catalog tonight.

 

[gEE805]

hmm thats true dont wanna go through that hassle never minda bout the bigger then what you got

 

[MrFancypants]

Isnt it going to look a little silly when the swept area on the new rotor is like 75% of what it should be?



- Greg -

 

[oldman]

Isnt it going to look a little silly when the swept area on the new rotor is like 75% of what it should be?
- Greg -

Not in my opinion.

 

[trbobrk]

Yeah, but do they have an attachment for our style ebrake cable?

It uses a drum in disc type of parking brake. But I figure that there has to be a cable going comming from that stupid foot pedal so you might be able to retrofit all the drum stuff and hook the end of our cable to that.

 

[MrFancypants]

It uses a drum in disc type of parking brake. But I figure that there has to be a cable going comming from that stupid foot pedal so you might be able to retrofit all the drum stuff and hook the end of our cable to that.

Yeah I recall the same... the old Q had rear discs for braking and rear drums for parking. Never really understood why. Maybe they didnt want the parking brake to mess with the traction control system.


- Greg -

 

[randyo156]

old man
i voted yes its big enough
but i am only putting 15 inch wheels
so figure in in your vote that while i voted yes i wont be buying
sorry just realized you need 16s

 

[trbobrk]

Yeah I recall the same... the old Q had rear discs for braking and rear drums for parking. Never really understood why. Maybe they didnt want the parking brake to mess with the traction control system.

I been looking into it, Y32-33, Z32-33, R32-34 all seam to have that drum in disk.