STi in house for measurements
07-11-2003, 07:39 AM
#47
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Join Date: Jun 2003
Location: BC, AB
Posts: 95
Car Info: 2002 3/4 ton Cevy Suburban, 1997 Integra Type-R, 2004 WRX-STI
Ok...
Your ad (Tirerack) in the June issue of SCC has a blue Subaru, with the Brembo brake kit, wearing SSR 18x8 competitions....
If these wheels have a 51mm offset (which I have learned is ideal), why do they fit one suby with Brembos, and not another?
Your ad (Tirerack) in the June issue of SCC has a blue Subaru, with the Brembo brake kit, wearing SSR 18x8 competitions....
If these wheels have a 51mm offset (which I have learned is ideal), why do they fit one suby with Brembos, and not another?
07-11-2003, 07:52 AM
#48
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Join Date: Mar 2003
Location: Warsaw, Indiana
Posts: 681
Car Info: 02 WRX Wagon White
The Comps clear Brembo GT kit we sell for the WRX. The Subaru brakes are indeed different. It's the "Subaru-Brembo" kit - with different dimensions than the GT.
07-11-2003, 07:56 AM
#49
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Join Date: Jun 2003
Location: BC, AB
Posts: 95
Car Info: 2002 3/4 ton Cevy Suburban, 1997 Integra Type-R, 2004 WRX-STI
That doesn't really seem to make all that much sense to me... obviously Brembo spends a great deal of time and resources engineering brake systems, so why have 2 separate systems for the same car? Not really cost effective... I will enquire further.
07-11-2003, 08:10 AM
#50
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Join Date: Jun 2003
Location: BC, AB
Posts: 95
Car Info: 2002 3/4 ton Cevy Suburban, 1997 Integra Type-R, 2004 WRX-STI
Ok...
I just spoke with an engineer at Brembo, and he informed me that the GT kit((for the WRX), and the STI stock calipers have the same dimensions, thus, wheels that fit the WRX GT Brembo kit will also fit the WRX-STI.
I am now thinking about a set of SSR's...
I just spoke with an engineer at Brembo, and he informed me that the GT kit((for the WRX), and the STI stock calipers have the same dimensions, thus, wheels that fit the WRX GT Brembo kit will also fit the WRX-STI.
I am now thinking about a set of SSR's...
07-11-2003, 12:35 PM
#51
Ok here is the deal. Most Brembo guys here in the US do not know that there is a difference and yes it is even their own products. I know I know. There is a difference between The gold Brembos and the GT kit. The Brembos that are on the STi are the same ones used on the G35, 350z Track Edition, Skyline R34, and some other cars.
07-11-2003, 01:04 PM
#52
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Join Date: Jun 2003
Location: BC, AB
Posts: 95
Car Info: 2002 3/4 ton Cevy Suburban, 1997 Integra Type-R, 2004 WRX-STI
What are you talking about here? I called, and spoke with, an engineer, someone who was very knowledgeable about the products.
Before I did this, I was already suspect that it was the same due to the fact that big changes (i.e. unsprung weight, suspension geometry) in these aspects of handling could very well have an adverse affect on vehicle handling and stability.
It is not cost effective to implement inter-vehicle changes, especially when basic geometry is the same with both vehicles. Brembo products are mass produced. They are also sized (piston diameter) to the weight of the vehicle, the master cylinder and front rear bias.
I happen to know about this stuff for 2 reasons: 1) I have designed and built my own brake kits, and 2) I run a consulting engineering firm.
Even though there is no direct part number (yet) to cross reference the 2 piece rotor of the GT kit with the STI, Brembo assured me that they were working on a direct crossover, as well as a 14" upgrade.
Although the color (gold) may be similar to other vehicles, it is not indicative that they are the same caliper with the same piston sizes. For instance, a Skyline is a very heavy car. Therfore, it is logical to assume (for the purposes of this post) that the piston sizes are bigger than those in the 350z, which is a lighter car.
Balance in the Brembo aftermarket kits, as well as other kits, are a result of proportioning the correct amounts of fluid to both the front and rear calipers. Some people do this better than others. Stoptech, for example, spends a great deal of time sizing pistons so that when you increase the volume of fluid you have to move (with front only kits) you still retain good pedal feel, and excellent control, while still operating within the parameters of the stock master cylinder and stock rear brakes.
But I digress. The object of this post is to determine what wheels will fit under the STI brakes. Assuming the information I was given is correct (which I have no reason to doubt) any wheel that fits under the GT kit, will fit stock STI's. To further this point, I spoke with a fellow at Prodrive who informed me that the GC series wheels, with 10mm less offset, would also clear the calipers.
I think that both of these sources are somewhat reliable. Should anyone else wish to question that, I would suggest that you investigate for yourselves rather than spread conjecture around with no facts to back it up.
I am new to this borad, but I am also involved in a Honda board. One of the most disturbing things I have found in my days on these boards is people taking erroneous information as fact, or coming across as they are more knowledgable than others. This does nothing but degrade the integrity of said board, thereby steering people away who would otherwise share useful knowledge here.
Before I did this, I was already suspect that it was the same due to the fact that big changes (i.e. unsprung weight, suspension geometry) in these aspects of handling could very well have an adverse affect on vehicle handling and stability.
It is not cost effective to implement inter-vehicle changes, especially when basic geometry is the same with both vehicles. Brembo products are mass produced. They are also sized (piston diameter) to the weight of the vehicle, the master cylinder and front rear bias.
I happen to know about this stuff for 2 reasons: 1) I have designed and built my own brake kits, and 2) I run a consulting engineering firm.
Even though there is no direct part number (yet) to cross reference the 2 piece rotor of the GT kit with the STI, Brembo assured me that they were working on a direct crossover, as well as a 14" upgrade.
Although the color (gold) may be similar to other vehicles, it is not indicative that they are the same caliper with the same piston sizes. For instance, a Skyline is a very heavy car. Therfore, it is logical to assume (for the purposes of this post) that the piston sizes are bigger than those in the 350z, which is a lighter car.
Balance in the Brembo aftermarket kits, as well as other kits, are a result of proportioning the correct amounts of fluid to both the front and rear calipers. Some people do this better than others. Stoptech, for example, spends a great deal of time sizing pistons so that when you increase the volume of fluid you have to move (with front only kits) you still retain good pedal feel, and excellent control, while still operating within the parameters of the stock master cylinder and stock rear brakes.
But I digress. The object of this post is to determine what wheels will fit under the STI brakes. Assuming the information I was given is correct (which I have no reason to doubt) any wheel that fits under the GT kit, will fit stock STI's. To further this point, I spoke with a fellow at Prodrive who informed me that the GC series wheels, with 10mm less offset, would also clear the calipers.
I think that both of these sources are somewhat reliable. Should anyone else wish to question that, I would suggest that you investigate for yourselves rather than spread conjecture around with no facts to back it up.
I am new to this borad, but I am also involved in a Honda board. One of the most disturbing things I have found in my days on these boards is people taking erroneous information as fact, or coming across as they are more knowledgable than others. This does nothing but degrade the integrity of said board, thereby steering people away who would otherwise share useful knowledge here.
07-11-2003, 01:29 PM
#53
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Thread Starter
Join Date: Mar 2003
Location: Warsaw, Indiana
Posts: 681
Car Info: 02 WRX Wagon White
Sti caliper extension: 35.4mm
Brembo GT w/328mm rotor (p/n 1A1.6010, the one in the ad): 23mm
Brembo GT w/332mm rotor (p/n 1B2.7008): 34.3mm
The Brembo 332 has the same wheel options as the STi, while the Brembo 328 (again, pictured in the ad) has about 18 wheels to fit.
The 332 is a special order, and the 328 is what we sell regularly.
Brembo GT w/328mm rotor (p/n 1A1.6010, the one in the ad): 23mm
Brembo GT w/332mm rotor (p/n 1B2.7008): 34.3mm
The Brembo 332 has the same wheel options as the STi, while the Brembo 328 (again, pictured in the ad) has about 18 wheels to fit.
The 332 is a special order, and the 328 is what we sell regularly.
Last edited by Dexter@tirerack; 07-11-2003 at 01:45 PM.
07-13-2003, 11:27 AM
#56
Guest
Posts: n/a
Dexter, thanks for great info!!
GT7, wow!! should be nice..
GT7, wow!! should be nice..
Originally posted by Dexter@tirerack
We've come into numerous problems with fitting the STi. We have a new wheel coming in, the SSR GT7, that will fit in 17x7.5 offset 50 and 18x8 offset 51. I'll post specs on the wheel as soon as I get them - I can't even get a picture yet. The "favorites" aren't fitting; SSR Comps, OZ Superleggera, etc.
I appreciate the STi owners' patience and understanding in this saga. This is an extrememly tough fit with huge brakes and high offset. No (or very few) traditional wheel designs work. A new breed of wheels are in the works for these types of applications, the GT7 being among them. I'll post as more info comes through.
We've come into numerous problems with fitting the STi. We have a new wheel coming in, the SSR GT7, that will fit in 17x7.5 offset 50 and 18x8 offset 51. I'll post specs on the wheel as soon as I get them - I can't even get a picture yet. The "favorites" aren't fitting; SSR Comps, OZ Superleggera, etc.
I appreciate the STi owners' patience and understanding in this saga. This is an extrememly tough fit with huge brakes and high offset. No (or very few) traditional wheel designs work. A new breed of wheels are in the works for these types of applications, the GT7 being among them. I'll post as more info comes through.
07-17-2003, 07:52 AM
#57
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Join Date: Mar 2003
Location: Warsaw, Indiana
Posts: 681
Car Info: 02 WRX Wagon White
I have posted a few pics of the PRE-PRODUCTION version of the SSR GT7 here for your perusal. Notice the extreme caliper clearance. The GT7 will be available in silver w/ machined lip and light grey w/ machined lip. Also for Subaru and Lancer there will be gold w/ machined lp available.
Last edited by Dexter@tirerack; 07-17-2003 at 08:20 AM.
07-17-2003, 09:04 AM
#58
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Originally posted by Dexter@tirerack
I have posted a few pics of the PRE-PRODUCTION version of the SSR GT7 here for your perusal.
I have posted a few pics of the PRE-PRODUCTION version of the SSR GT7 here for your perusal.
