BBK bias discussion

BlackDevilSupra

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#81
I found the brake measurements and braking comparison between MKIII and MkIV (GE and GTE) from a technical manual that was on the www.mkiv.com web site, but the new owners have rearranged the page. It's probably still on there somewhere, just gotta check and peruse in more detail.
 

SideWinderGX

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#82
Go on rockauto and look for the brake caliper (front/rear) for the make/model/year of the vehicle in question. The 'centric' branded parts have pictures which include dimensions of the caliper as well as piston diameter.
 

88SupraT

Boosting Supra
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#84
88suprat - I very much am, but I was wondering, about the ISF setup that was spoken about a little while ago by Sethron, since i have an ISF, would make things pretty simple for new parts.
I also have the front bbk Sethron offers that you are talking about installed on my car, in terms of quality the kit is great! I agree with you about parts availability since most of the parts for kit are factory parts.

I also have installed the evo8 and sti rotor upgrade to the rear, but unfortunately I can't give you any good info on how the biasing is with the front and rear upgrade since my car is down for work.
 

Poodles

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#85
Yeah, sounds less like a bias issue and more of an issue with something else (simple math of the hydraulic system, brake pads, etc)
 

Zazzn

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#86
So to bring this completely up to date, removing the Hawk HP+'s front the front, the car is no longer nearly as touchy as it was. I went from an extremely aggressive pad to the worst biting pad you can pretty much buy.

Problem solved, LOL.

I also did the EVO back caliper upgrades and STI rotors. The car stops very predictable now except the ceramics have almost no initial bite so may need something a little more aggressive.

Bottom line, the HP+'s were too aggressive for my driving style.

That being said, the reason I ended up in this thread was I was looking for the mk3 hub bore size. I know the mk4 is 60.1 but I think the mk3 was 1 mm smaller?