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> Roger's 914 thread., I could have had a V8!
Dr. Roger
post Feb 24 2006, 12:37 AM
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QUOTE (McMark @ Feb 23 2006, 10:29 PM)
Well, I would think that those small stock 4 brakes with huge meats would warrant ditching the proportioning valve.  I wonder if the stock brakes could even lock up 11" wheels.  :o Eric?

yes sir. A calipers. and i've got a set of cross drilled rotors ready to replace the existing ones if i start looking for ways to procrastinate the wiring project again... (IMG:http://www.914world.com/bbs2/html/emoticons/laugh.gif)

actually the pins and springs are straight 911. not custom. unless you think custom means having to bend the 2 springs (too wide and long) to make then fit correctly within the caliper. one pair of needlenose pliers and 5 minutes later. done. custom. (IMG:http://www.914world.com/bbs2/html/emoticons/cool.gif)

hmmm, don't they make a proportioning valve bypass line?
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Eric_Shea
post Feb 24 2006, 08:22 AM
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QUOTE
actually the pins and springs are straight 911. not custom. unless you think custom means having to bend the 2 springs (too wide and long) to make then fit correctly within the caliper.
(IMG:http://www.914world.com/bbs2/html/emoticons/laugh.gif)

Actually... I think 'custom' means quite the opposite. More like it actually fits w/o bending anything (IMG:http://www.914world.com/bbs2/html/emoticons/lol3.gif)

Regarding the pins, straight 911 wouldn't have the one pin larger than the other and wouldn't fit tightly in the hole. Expect your pads to move around back there and some bizaarr wear patterns if not broken stuff.

You really need to ditch those calipers in favor of some 911 units and a handbrake solution. Right now... as you sleep your wheels and tires are laughing at your calipers and calling them all sorts of names. (IMG:http://www.914world.com/bbs2/html/emoticons/poke.gif) It's not a pretty sight. (IMG:http://www.914world.com/bbs2/html/emoticons/biggrin.gif)
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Eric_Shea
post Feb 24 2006, 08:24 AM
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QUOTE
hmmm, don't they make a proportioning valve bypass line?


Why yes, they do...
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John
post Feb 24 2006, 10:47 AM
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Roger,

How wide are the caliper spacers (8mm, 10mm ???) and how wide are the rotors?

I drew up the spacer (now I need a thickness), and am having quotes for them sent out.

I'll make pins like eric showed when I find out how wide to space the caliper halves.

Thanks
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Dr. Roger
post Feb 24 2006, 12:15 PM
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Eric:
QUOTE
Actually... I think 'custom' means quite the opposite. More like it actually fits w/o bending anything


well i know i'm very far away from being a real 914 pro however... (IMG:http://www.914world.com/bbs2/html/emoticons/wink.gif)

the pin spacing is smaller on a 914 than the 911. Hence having to "adjust" the spring inwards to support the pins in their closer position while maintaining the proper anti-rattle characteristics.

the PIN retainer clips ARE interchangeable.

I checked the fit of the pins through the pads and there is very little play. i don't know, perhaps we have different pins? mine fit perfectly through the calipers with zero play. if there's any measurable play it's pin to pad play... but is acceptable in my book. i'll look at that again and measure the play and get your opinion if there's too much play.

Geez, a 911 E brake solution? i'm a CSOB remember??? (IMG:http://www.914world.com/bbs2/html/emoticons/biggrin.gif) (IMG:http://www.914world.com/bbs2/html/emoticons/laugh.gif)

Johnman:
I'll be working down in the garage today so i'll be sure to take that measurement for you.
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John
post Feb 24 2006, 01:33 PM
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Thanks,

I'm guessing that they are 10mm thick. I believe SC rear rotors are 20mm thick, and that 914 rear rotors are 10mm thick, so the spacers should account for the extra 10mm.
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joefri187
post Feb 24 2006, 02:46 PM
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An alternative to the fender flare issue.....

http://www.914conversions.com/html/fischer_part_2.html
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Dr. Roger
post Feb 24 2006, 05:59 PM
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Mar7ck.

Here's the offsets.


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Dr. Roger
post Feb 24 2006, 06:00 PM
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and the rear size and offset.


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Dr. Roger
post Feb 24 2006, 06:01 PM
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11" 45mm offset.


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Dr. Roger
post Feb 24 2006, 06:26 PM
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QUOTE (JOHNMAN @ Feb 24 2006, 12:33 PM)
Thanks,

I'm guessing that they are 10mm thick. I believe SC rear rotors are 20mm thick, and that 914 rear rotors are 10mm thick, so the spacers should account for the extra 10mm.

interestingly enough the spacers are 9mm thick.

if you go 9mm, the calipers have to be right on the offset adjustment. i actually had to do a little filing on the inner body of the calipers to have the rotor fitting perfectly. NOT on the pucks. =-)

if you go 10mm you will get a bit more leeway to play with the offset.

Go for it. The worst that can happen is you will learn a lot and maybe take an extra run to the parts house. No worries brother. (IMG:http://www.914world.com/bbs2/html/emoticons/beerchug.gif)

pic of of the 911 pins using 911 spring with 914 caliper. 911 spring is "adjusted" to shorter distance between pins.


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Aaron Cox
post Feb 24 2006, 06:28 PM
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andy come over and shoot that pic for ya?

use the macro function (IMG:http://www.914world.com/bbs2/html/emoticons/smile.gif)
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bd1308
post Feb 24 2006, 06:36 PM
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on my cameras, it looks like a flower icon.

b
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Dr. Roger
post Feb 24 2006, 06:36 PM
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sometimes even "doctor roger" 'effs up a pic or two.

oh, BTW, i think this is going to be my new avater name. one of my g-friends just gave it to me this morining.... (IMG:http://www.914world.com/bbs2/html/emoticons/smilie_pokal.gif) (IMG:http://www.914world.com/bbs2/html/emoticons/cool.gif)


New Avater name:

Doctor Roger

Is there an admin in the house???? Pretty please????? (IMG:http://www.914world.com/bbs2/html/emoticons/biggrin.gif)
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Dr. Roger
post Feb 24 2006, 06:37 PM
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QUOTE (bd1308 @ Feb 24 2006, 05:36 PM)
on my cameras, it looks like a flower icon.

b

Ohhhhhh, that's what that flower is for......... duhhhhhhhhhh. (IMG:http://www.914world.com/bbs2/html/emoticons/laugh.gif) (IMG:http://www.914world.com/bbs2/html/emoticons/huh.gif)
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Eric_Shea
post Feb 24 2006, 06:42 PM
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QUOTE
Geez, a 911 E brake solution? i'm a CSOB remember???


I just don't want you to be a DSOB (IMG:http://www.914world.com/bbs2/html/emoticons/wink.gif)
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Dr. Roger
post Feb 24 2006, 07:07 PM
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hey eric, i read everything you write.

i know you speak from real 914 experience and i appreciate that. (IMG:http://www.914world.com/bbs2/html/emoticons/grouphug.gif)
(IMG:http://www.914world.com/bbs2/html/emoticons/wink.gif)
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Dr. Roger
post Feb 24 2006, 08:40 PM
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QUOTE (JOHNMAN @ Feb 24 2006, 12:33 PM)
Thanks,

I'm guessing that they are 10mm thick. I believe SC rear rotors are 20mm thick, and that 914 rear rotors are 10mm thick, so the spacers should account for the extra 10mm.

johnman,

just an fyi...

if your are purely interested in the larger rotors eric shea has the stuff already figured out HERE

no brainer and no heaches.

i'm a bit sadistic and wanted to get turbo axles, bigger rotors, 5 bolt conversion, and E brake all in one swipe.

you may just want a 5 bolt and larger rotors with spaced calipers....
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John
post Feb 24 2006, 10:39 PM
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QUOTE
Go for it. The worst that can happen is you will learn a lot and maybe take an extra run to the parts house. No worries brother. beerchug.gif

pic of of the 911 pins using 911 spring with 914 caliper. 911 spring is "adjusted" to shorter distance between pins.



QUOTE
if your are purely interested in the larger rotors eric shea has the stuff already figured out


No offense, but I can fab my own for much much less than that.


Yeah, I figured that out after studying the pic and comparing your casting numbers to ones I have. What really threw me off was that you have the older style rear calipers (with the ribe heads). Most of mine are later model. mine are not through bolted, but the outer half is threaded and the bolt simply screws into the outer half.

I also figured out about the bent 911 pad springs (bent for the closer spacing between pins).

I am going to try this out on a set of extra rear calipers that I have laying around. I priced out doing this conversion (myself) and buying new 914-6 rear rotors and it is almost exactly the same cost. I'm going with new 911sc rear rotors. I think I know how to avoid having the rotors machined, but it will be extra work to move things 4mm. This way I won't change the balance of the new rotors and I won't have to do this in the future either.
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Dr. Roger
post Feb 25 2006, 09:12 AM
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john,

i don't know if you've read this article but it gives some more examples of what is a direct replacement regarding rear rotors. IE 911SC and 930's....
maybe a little "adjusting". =-)


http://ncr-pca.org/tech/upgrading_porsche_brakes2.htm
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