Tethis + 25mm spacer > S60R brakes

[Matt Dupuis]

Not showing off, but the test fit went well. Now I can mount rubber, and figure out how to route the brake lines when the caliper is "upside down" like this.

http://i27.photobucket.com/albums/c178/mattdupuis/100_2290.jpg
http://i27.photobucket.com/albums/c178/mattdupuis/100_2291.jpg
http://i27.photobucket.com/albums/c178/mattdupuis/100_2292.jpg
http://i27.photobucket.com/albums/c178/mattdupuis/100_2293.jpg

[oldschoolvolvo]

looking good

[MikeHardy]

puzzled as to why you have the calipers upside down

[adrianpike]

Looks like crap. Send it to me.
I pay shipping.

[Matt Dupuis]

puzzled as to why you have the calipers upside down

The P2 chassis has the calipers in front of the axle centerline vs. 240s which are behind the centerline, and because these calipers have staggered piston sizes, and the small pistons must be on the leading edge of the pad to distribute the braking force more evenly across the pad. At $180 per rotor and $140 for a set of pads, I kind of want them to wear a bit longer....

AFAIK, everyone's installed them backwards 'cause it's easier. I've got to break the thread sealer on the bleed nipple blanking plugs and move the nipples to the top, and I'll probably hard-line the caliper to the strut like OEM would. Other than that, all is well.

More of a display that there's an alternative to the Pegasus for these brakes.

[Matt Dupuis]

Looks like crap. Send it to me.
I pay shipping.

Dude, the LAST thing your car needs is better brakes.

[adrianpike]

Dude, the LAST thing your car needs is better brakes.

Not with Joseph Mother in the back. :-D

Do you know the reasons for the staggered piston sizes? How did you mount them the other way around? Got any photos of the back of the pistons and how they mount up?

In all seriousness, about my slow car, I've got some go-fast related questions for you, would you prefer a PM or an email?

[volvogeek]

Looks like crap. Send it to me.
I pay shipping.
Watch it, he might pull an eBay on you and charge $2000 for shipping like some of those ****ers. :-D

[Mesoam]

wow, meaty spacers...nice, can't wait to see it finished up

[towerymt]

Tethys.

And 25 is pretty skinny for a 7.5 ET49 wheel. I'd be thinking 30-35mm in the front and around 40 in the rear.

[Matt Dupuis]

Fine, go ahead and change the title if you wanna get all Isaac on me, Michael. ;-) And yeah, 25mm spacers are kind of skinny - the rim is darn close to the strut, but I'm only using 215s and they don't stick out too much past the edge of the rim. Also I want to keep as much negative scrub radius as possible, since I drive on pretty crappy streets most of the time. If I need to bump up the front spacers a bit, I will.

Adrian - e-mail away. You've got the addy...

Staggered pistons: As the pads grip the turning rotor, the friction/force tries to roll the leading edge of the pad into the rotor, and push up the rear of the pad. This heats up and wears out the leading edge quicker, and can eventually bind the pad in the caliper. The larger trailing piston more evenly distributes the braking force, keeping the pad cooler and the pad life higher.

To mount them the other way 'round, switch calipers side-for-side. Installed as they are on my car, I've got the left caliper on the left side of the car and the right caliper on the right side. Since you're putting them behind the axle, the bleed nipples now point down but there are (presumably) places to put them on the (now) high side, provided you can break the threadlocker! Tough stuff, and I nearly snapped my allen wrench trying. I'll get some threadlocker solvent later in the week to make the job a bit easier. You could heat the calipers but I don't want to mess up the paint...

If the other holes aren't machined for the bleed nipples, I'll just switch sides like others have done and hopefully the wear won't be so bad.

Stolen from Doug's pbase:

http://www.pbase.com/image/31230855.jpg

See here, Doug's got 'em mounted "backwards". The hose nipple points up like it does in the P2 chassis, but because the rotors are spinning backwards relative to the caliper, the large pistons are now the leading edge. You can also see one of the socket head plugs that blank off the bleed nipple locations I plan on using.

[hockey930]

Is Todd still selling thoes?
Eamonn

[Matt Dupuis]

Yup, though some of us Calgary boys are working on a 700/900 kit for Wilwood adaptation which should be quite a bit cheaper than the S60R parts, provided you buy the calipers & rotors off eBay.

[JW240]

why put the bleed nipples on top? just flip the car when you need to bleed the air out :-P

But wouldn't it be possible to bleed these brakes not mounted so that you can hang them up with zip-ties and have the bleed nipple face to the top? (brake line obviously attached!) when bleeded, mount em again on the car...

[Hank Scorpio]

Damn Matt those look ****ing HOT!! I kind of want to get a set of tethy's for the T5R (if they'd clear the porsches)

[Matt Dupuis]

But wouldn't it be possible to bleed these brakes not mounted so that you can hang them up with zip-ties and have the bleed nipple face to the top? (brake line obviously attached!) when bleeded, mount em again on the car...

That's plan "C", but with the pressure line coming in from the bottom, I'm pretty much forced to use a hard line and I really want to brace it to the strut. That would involve making braces that release the line easily if I want to remove the caliper to bleed it...

Thanks for the comp, Doug - I do like these wheels on other 240s I've seen, too bad mine's so ugly that they're kind of wasted! When the car's back on the ground, with an engine in it, I'll get another picture or two.

[Hank Scorpio]

Honestly, I really think you'll be able to break the bleeders loose, break the allen plugs loose and just reverse it. I can't see why Brembo (lets not forget what these are) wouldn't make them work either way.

btw, Im almost certian the porsches would fit under those. Damn I want a set now

[Pennybridge Pioneer]

I kind of want to get a set of tethy's for the T5R


WHOA. Doug channeling ACB?? say it ain't so! :-P

[Hank Scorpio]

WHOA. Doug channeling ACB?? say it ain't so! :-P

no, I've ALWAYS like those. They were the wheels that were SUPPOSED to be on my s60 5 years ago. (got the other 17's instead)

[Matt Dupuis]

Honestly, I really think you'll be able to break the bleeders loose, break the allen plugs loose and just reverse it. I can't see why Brembo (lets not forget what these are) wouldn't make them work either way.

Well I've heated the calipers up to the point where the paint is now gone around one of those plugs, and still no joy. I don't want to have to heat up the outboard side this hot to get them loose - the inboard side I don't really care about. I'm starting to strip out the socket head with my allen wrench, too... There's chemical solvents for this stuff, but I'm not sure if it'll work it's way thru the threads to unlock a locked fastener or not.

But on the flipside, I've determined that the caliper end of the brake hose is AN, probably AN-3. I'll get a 90* male-female elbow and just carry forth using my 850 lines, and I'll bleed the calipers off the car. It's a bit more hassle, but I won't be doing it more than once every few years, and it's no worse than screwing the calipers up any more...

[242GTMD]

Looks nice Matt. I run 28mm front and 42mm rear spacers with my Tethys on the 240. Doug, keep the Pegs. For as much as you wash your car, the Tethys will drive you to the nuthouse. They SUCK to clean.

[Matt Dupuis]

Good thing I don't wash my car all that much, then! Hopefully these Hawk brake pads don't leave a really sticky black dust like the OEMs do. They're not supposed to...

[Hank Scorpio]

Looks nice Matt. I run 28mm front and 42mm rear spacers with my Tethys on the 240. Doug, keep the Pegs. For as much as you wash your car, the Tethys will drive you to the nuthouse. They SUCK to clean.

thats what I love about pegs :rofl:

[hockey930]

I really would like some new brakes for my 740, if you guys come up with anything please let me know. My brakes suck.
Eamonn

[Matt Dupuis]

I've determined that the caliper end of the brake hose is AN, probably AN-3.

Bah, I'm a dope. It's 10mm x 1.0 thread pitch. VERY close to AN-3, but not quite the same.

240 hoses, hard pipes, and removable braces coming right up.

Got the wheels/tires on the car yesterday - no rubbage anywhere, except for my fuel lines at full lock!!! Gotta take care of that, methinks.

And don't worry, Eamonn - we'll let everyone know when we've got it sorted!

Edit - and NFG on the bleeder relocation. I tried heat, I tried chemicals, and I tried brute force. Eventually I tore up the hex in the plug... I'll bleed them by taking them off and turning them upside down, no big deal!