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Old 05-27-2010, 10:10 PM   #26
4porsh
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Quote:
Originally Posted by Viperguy324 View Post
I wonder if those fake plates can with the car? (spacing is wrong, and sticker is in the wrong location)
No the plate did not come with the car. It is fake and people buy them from
http://www.griotsgarage.com/product/...cense+plate.do
We have to run our cars with front plates and our plates look bad on the car, so thought it would look cool and hopefully keep the cops and parking enforcement happy since it matches the plate letters on the back.
I like it.
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Old 05-27-2010, 10:20 PM   #27
MasterKwan
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I like those plates, My US plate covers too much of the radiator so, I take it off for the track. Would love to leave it on.
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Old 05-27-2010, 10:26 PM   #28
rodder
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has anyone actually run the APM j-hooks on the track yet? They look promising, and the price isn't bad at all...
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Old 05-27-2010, 11:39 PM   #29
JoBoo
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Ive run the pfc rotors on my sti for the past 4 or 5 years. (not the same set for that long ) Ive not had any issues whatsoever and they're very easy to swap rings.

Im sure dba make some quality products, though, I've seen inconsistencies in the rotor quality. There are some rotors they make marketed towards teh street crowd, and these are greatly different than the motorsport quality rotors. There may even be a few varieties inbetween. I have no idea how to tell them apart. Ive seen dba rotors completely crack through after a day of track use, and ive seen some last quite some time. So, I guess all I have to offer here is buyer beware.
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Old 05-28-2010, 01:17 AM   #30
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Originally Posted by JoBoo View Post
Im sure dba make some quality products, though, I've seen inconsistencies in the rotor quality. There are some rotors they make marketed towards teh street crowd, and these are greatly different than the motorsport quality rotors. There may even be a few varieties inbetween. I have no idea how to tell them apart. Ive seen dba rotors completely crack through after a day of track use, and ive seen some last quite some time. So, I guess all I have to offer here is buyer beware.
Again, it's all about temperature. Below 1250°F or so, they wear way slower than the cheap-o stuff with no cracking issues. The nice thing is that they come already striped with temp paint. Well, at least the 4000 and 5000 series do. I don't bother with the lower 'street series' stuff when for a few bucks more you can get the 4000's. Going to the track without knowing what temperature the brakes are getting up to is a pretty bad idea no matter which rotors and pads you are running.
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Old 05-28-2010, 03:18 AM   #31
DigitalPunk
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Originally Posted by Jose STi View Post
LOL! What about now?
hot car btw lol
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Old 05-28-2010, 03:33 AM   #32
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Quote:
Originally Posted by Chris_B View Post
They have a huge warehouse in Michigan and a butt-load of distributors across North America, of whom the better ones carry shelf stock. What's the issue? They may run dry on a particular number from time to time, but their sales have shot up over the last 18 months so they are making adjustments. Fulfillment has improved about 300% from a year ago.

and you work for? again, as others have said DBA appears to be a more street orientated rotor... whereas the PFC rotors have been proven 10 fold.

Truth be told, the only time i've ever heard of DBA is on here.. Never seen one of their rotors on a high level race car (I'm sure they have a couple for marketing..yet nothing about it on their home page)

as a bonus, it looks like PFC is an american company.
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Old 05-28-2010, 03:40 AM   #33
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I am not a pro racer, but I drive my car hard and my bearings, transmission and differentials can share their stories with you. I think that the PFC stuff should be very good, I will try them on my Z soon. I currently use DBA 5000 on my WRX wagon and they work well for me with Project Mu HC+ pads. Between DD duty and monthly track duty, they do a good job and save me the hassle and time of swapping too much stuff when I get to the track (since I don't tow the car there).

My DBAs got about 45k of use before needing to replace the rotor disc. I have never had a crack so far, and distortion is still within reason. There is not enough distortion / warping to shake the car under light braking. I'm sure if I spun the rotors, they would have some runout, but I doubt the PFC could say there would be none.
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Old 05-28-2010, 03:48 AM   #34
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Quote:
Originally Posted by rodder View Post
has anyone actually run the APM j-hooks on the track yet? They look promising, and the price isn't bad at all...
I'll be at the track this weekend with 2 cars testing the j hooks IMO ****s the same. If I haven't seen that design on a race car before I'm pretty sure it's really not gonna be that much of a noticle change.

Btw I'm on stock brembo take offs and have only had to change 1 bearing so far so prob will be a long while before I go 2 pc. But I'd still stick with PFC
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Old 05-28-2010, 10:03 AM   #35
Jose STi
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Originally Posted by JoBoo View Post
Ive run the pfc rotors on my sti for the past 4 or 5 years. (not the same set for that long ) Ive not had any issues whatsoever and they're very easy to swap rings.

Im sure dba make some quality products, though, I've seen inconsistencies in the rotor quality. There are some rotors they make marketed towards teh street crowd, and these are greatly different than the motorsport quality rotors. There may even be a few varieties inbetween. I have no idea how to tell them apart. Ive seen dba rotors completely crack through after a day of track use, and ive seen some last quite some time. So, I guess all I have to offer here is buyer beware.
Wow! Thanks for the info. I saw some other guy having issues with DBA's at a youtube video comment from a DBA video.
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Old 05-28-2010, 10:10 AM   #36
Jose STi
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Im going with PFC... here in PR there are like 4 more STI's with them, and nobody with issues so far... I just wanted to hear some feedback on the DBA's and what i've heard so far aint that good.

My combination:

Front PFC 2pc Rotors with PFC 01

Rear stock rotors with PFC 05 a lil of more bite!
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Old 05-28-2010, 08:17 PM   #37
rodder
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Quote:
Originally Posted by STi-MAN View Post
I'll be at the track this weekend with 2 cars testing the j hooks IMO ****s the same. If I haven't seen that design on a race car before I'm pretty sure it's really not gonna be that much of a noticle change.

Btw I'm on stock brembo take offs and have only had to change 1 bearing so far so prob will be a long while before I go 2 pc. But I'd still stick with PFC
don't a lot of the rally guys use j-hook rotors?


I've also seen these being run by the pros with a similar pattern:


Last edited by rodder; 05-29-2010 at 12:19 PM.
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Old 05-28-2010, 08:42 PM   #38
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Originally Posted by rodder View Post
don't a lot of the rally guys use j-hook rotors?

YouTube- WRC Technical - Brakes!

I've also seen these being run by the pros with a similar pattern:

The video show the AP Racing J-hooks, which the rally guys love. About 90% of NASCAR teams currently use those at the heavy braking tracks. It's got the better bite like cross-drilled rotors have without the high-temp cracking issues.

Alcon uses the crescent design as shown, which is roughly similar. PFC uses dimples, which they (but not everyone) believe are better. Both the J-hook and crescent designs are noisier with noticeably more groan.

Chris
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Old 05-28-2010, 10:08 PM   #39
rbahr
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I ran the PFC rotors for several years and really liked them, usually paired them with the PF-01 and PF-97 pads. They wore well... Not much experience with the DBA though

Ray
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Old 05-28-2010, 10:14 PM   #40
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Quote:
Originally Posted by Chris_B View Post
They have a huge warehouse in Michigan and a butt-load of distributors across North America, of whom the better ones carry shelf stock. What's the issue? They may run dry on a particular number from time to time, but their sales have shot up over the last 18 months so they are making adjustments. Fulfillment has improved about 300% from a year ago.
Last time I inquired about rings for my DBA 5000 It was going to cost as much as a new set + hats and take over a month.

It probably doesn't help that I was looking for actual DBA 5000 (not 5010, not 5001, 5 zero zero zero) and those were virtually discontinued in the US after they sold my pair once I told them they didn't fit the stock USDM cars. Oh the joys of early adoption... "thanks for being the guinea pig, now we'll screw you over by changing the design so you can't get replacement parts with out air freighting cast iron overseas"

They performed fine, they lasted as long as could be expected, it was just availability (and as a result, pricing) of replacements was a little bit of an issue.

I wouldn't be surprised if things have improved, but bitter tastes tend to linger.
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Old 05-29-2010, 12:17 PM   #41
rodder
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thanks for the info chris.
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Old 05-31-2010, 08:17 PM   #42
Chris_B
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Quote:
Originally Posted by Concillian View Post
Last time I inquired about rings for my DBA 5000 It was going to cost as much as a new set + hats and take over a month.

It probably doesn't help that I was looking for actual DBA 5000 (not 5010, not 5001, 5 zero zero zero) and those were virtually discontinued in the US after they sold my pair once I told them they didn't fit the stock USDM cars. Oh the joys of early adoption... "thanks for being the guinea pig, now we'll screw you over by changing the design so you can't get replacement parts with out air freighting cast iron overseas"

They performed fine, they lasted as long as could be expected, it was just availability (and as a result, pricing) of replacements was a little bit of an issue.

I wouldn't be surprised if things have improved, but bitter tastes tend to linger.
I'm hearin' ya. There is some confusion with Subarus due to the fact the JDM and USDM cars are often different. Add to this what was shipped to Australia, Europe and the Middle East and it becomes apparent where fitment trouble can begin for companies shipping worldwide. I can see they have sorted a lot of this out over the years. The newest discs are coming over double-drilled to fit both WRX and STI bolt pattern to lessen the stocking nightmare.
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Old 05-31-2010, 11:18 PM   #43
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I think Chris B is from AP Racing.

John,
Vince was running DBA 2pc fronts before he got the 2pc APM's for testing this weekend.
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