Stock 17 inch wheels with 255/40/17 Kumho Victoracer rcompounds all around.

BSP Autocross

 

Just got the first set of 275/40-17 RA-1s for my new SSR 17-inch wheels. I'm saving more than $200 per set over the cost of narrower 18-inch tires. I'm looking forward to seeing how the handling changes with these wider tires.

 

17x7.5" front and 17x8" rear Volk LE28N (one-offs) with Falken Azenis 615. BS(T)

 

For everyone running 17x9.5 or 17x9's with 275/40's all the way around, what offset are you running?

 

+35 on my Enkei RPF1's, the front rubs just a little bit on the inside, but that is easily fixed with a 5MM spacer

 

my 17x9 fn01rc's are +35 and my 17x9.5 GN+'s are +38. I run a 3mm spacer with both setups. I use a higher offset than is normally used on the 350z as my wheels are used on my z32 as well. Optimal offset should be between 20-30 for z33 applications.

 

Seems like you know a lot about this, do you mind me asking you a few questions?

Does Stoptech offer a 4 piston rear caliper with a good pad choice?
What type of calipers does AP offer? Not sure how many different calipers they have, do you know?
Also I am wondering if stoptech are the only ones making balanced 4 wheel kits?
I am not quite understanding the comment about varying piston sizes, in one caliper or in different calipers? Maybe AP has a lot fewer caliper types, is that what you mean?
When you buy a stoptech kit, is it possible to exchange the pad against one that does not come with the BIG warning to not use it on the track (the pad)?

If there is some fact to stoptech's inherent caliper design that makes it a universal street + racing caliper, it would be nice to hear more about it.
As far as I know for streetable applications it is still better to go with a road caliper (no squeal, no pad springs) vs. a racing only caliper (no dust boots?)
I also wonder what type of metallurgical difference there can be between a racing and a road caliper.

I think stoptech is a very friendly and very nice company and they surely do a great job and are very present on this forum to help out where help is needed. Just like you would expect from a relatively young company.
Certainly you can't go wrong buying their products and I suspect they are much more open and nice to deal with than stillen.
(Example: they have their pad shapes online, go try call stillen about pad choice, you get a totally unprofessional attitude and BS talk)

But please don't overdo it and keep it educational, thanks.

And to the OP:
nt03+m 9.5 +27 with azenis 615 245-40-18 / 275-35-18
275-35-18 all around should work too and then allows rotating back front.

 

When I ordered my 13inch front Stoptechs from SPL Parts I ordered them with Hawk HT-10's, so yes, you should be able to get whatever pad you'd like that they carry.

 

Pedro, from what was explained to me at the time of my purchase, my ideal setup was 14" Stoptech all around with 4POT front and 2POT rear. The primary reason for this was pad selection. The only thing needed between track and street would be a simple pad change...

I have some notes written down from when I talked to the Stoptech rep (which included specific pads) but I don't have that with me.

Best advice would be to contact Stoptech and simply state what your usage will consist of along with your HP levels and the type of tire you will be running.

They should be able to take that equation and come up with the perfect brake solution for you. I have nothing but positives to say about Stoptech's customer service...

 

I'm running Enkei RPF-01 17X8.5 +22mm w/ Hankook Ventus R214's: 275/40/17 on all 4 wheels.

here's a pic of the rims w/ toyo RA-1's on them:


-Peter

 

Thanks Skidmarq, actually I already have an AP kit
I just don't like posts like racin's that brainwash people on this forum to believe that only stoptech is using math to design a caliper. When you go elsewhere than on this forum, chances are AP is better known than stoptech. But here on this forum, it is totally reversed.
So my critique is not against stoptech, again I think they are a great company with great products, but against overdoing marketing for them.
But I guess my critique was too subtle to come across, not easy to see that all my questions were rethorical in nature, and pointing to weak points and to lack of facts in racin's post. And regarding customer service, that was exactly my point. I'd take stoptech's customer service anytime over stillen's (AP distributor stillen==brake-pros).

Peace

 

I just ordered a set of WORK Emotion CR's w/ RA1's.

I'll post pics next when when I have them mounted.

 

My bad, pedro, guess your rhetoric was lost in my thick skull...hehe

 

what size did you get? I have 18X9.5"'s and they're pretty heavy (I think around 20-22 lbs/ea)

 

If you will start a thread concerning your above post, as well as the addition I quoted here, and alert me to it at nick@ntechengineering.com , I will happily address what you are talking about when I can find some time. I'd love to discuss this further. Note please, I did mention that my original response was going to be quick, which it was.

 

So to revert back to the question about offsets in 17's for 275's on all four corners, here is what I have come up with....tell me if this sounds about right...

17x8.5 +22 fits
17x9 +35 or 17x9.5 +38 with a 3mm spacer fits
--->(so roughly 17x9 +32 or 17x9.5 +35)
I know bigdaddy used to run 17x9 +27 with 275/40 RT-615's
Anyone else?

jmckuhen: what width are your RPF1's?

Other question is...do the factory Brembo's fit under all these?

 

I do not have factory Brembos.

My wheels are Enkei RPF1 17x9 +35 with 275/40/17 Kumho V710's at all four corners.

 

I'd stick with 17x9 as a minimum width. If you're buying new wheels might as well go as wide as you can.
The offsets that work for my car still have a lot of room outwards towards the fender, that's why I suggested closer to a +20 or so offset.
As you can see, there is plenty of fender clearance and a wider stance would be ideal.


Factory brembos should fit under all of these as my 13 inch stoptechs fit fine. Different spoke designs will have different fitment though.

 

Right now my street setup is 18x9.5 +22 front with 265/35 tires and under hard cornering it rubs just a bit...so I know i need higher than the +22, but the 275 in the front is what is scaring me....seems like 5mm more tire on each side needs at least +27 setup to be in the same place as I am now.

 

How much camber are you running? are your fenders rolled at all?