Stainless brake hose for ZR-1

[DarkAngel]

Hello again everyone,

its been long time i didn't ask for help ;)

i have an issue with stainless brake hose

i've decided to change my brake hose on my Z with some braided stainless one
because i've found that the pedal feel was too soft and i've changed also the pads with hawks

i've bought the one from ecklers (http://www.ecklerscorvette.com/corvette-brake-hose-set-braided-stainless-steel-graphite-1988-1993.html) but unfortunately the front one cannot be mounted because the fixation part seem too thin for the front brakes
it seems that it was ok for the rear one
moreover the pedal feel is still the same even with new pads :cry:

does anyone know where i can found some stailess brake hose that can be mounted on the front brakes ?

and how i can improve the pedal feel
strangely it feels ok when i press one time the brake and that i press again but it's really not pratictal

Thanks for your help

[secondchance]

and how i can improve the pedal feel
strangely it feels ok when i press one time the brake and that i press again but it's really not pratictal

Thanks for your help

Fact that second time you press it feels ok suggests you might have an air bubble trapped in the system - just my suspicion.

As for the brake line, I don't know which vendor to recommend. I suggest, once you replace brake lines, to flush the system with new brake fluid.

[Kevin]

picked up mine at doug rippie motorsports

[WVZR-1]

OP - you mentioned "fixation part". Do you mean where the brake hose meets the hard-lines at the frame rail? That is what I always thought would be the difference in the '94+ and the '88 - '92 but I never had a reason to compare. The fronts are indexed to the frame rail bracket to avoid assembly line conflicts. A match of the indexing allows the clip to secure the hose to the bracket, unless indexed properly the clip should not fit. How do the fronts compare in length to those that you bought? Actually a '93 OE is cataloged as different for the '93 and it's mention L & R are the same.

I never understood the brake hoses and I always suggested "caution" when the subject came up. I actually never understood it not being questioned more frequently.

What year is your car?

[secondchance]

David,

OP's profile indicates 90Z.
Checking Davies Corvette parts catalog, 88-92, 93, 94-96 front hoses have different part number. I think they are the same at caliper. Difference must be at flex hose to hard line termination.

[JimZRyd]

Got mine from Summit racing. Went with Russel brand. They fit perfectly.

[tf95ZR1]

Another option: Take your old hoses to a hose fabricator.
They can duplicate the length, and either use your old
connectors or match new ones.

[WVZR-1]

OP - it was mentioned your car is a '90 so if you've removed the hoses you could look into the bracket on the frame and see the indexing. If your issue is at this point and the lengths are appropriate you could dremel the index to fit what Eckler's sent which is likely just "round". Never had their product in hand.

If the hoses are in hand you can look at the end and see the indexing. I believe I may have a set of OE and maybe a set of after-market. I may try to snpshot and compare. May not be soon - other issues.

[DarkAngel]

WVZR-1
it's this part that cannot be mounted on the front brake
its too thin to be tighten correctly
https://i.imgsafe.org/b9691b9.jpg

i didn't precise but yes it's a '90 ZR-1

@secondchance : i've already replaced the liquid and purged the system but it's still the same :(

[WVZR-1]

But they gave you new banjo bolts and sealing washers. You can't attach with the hardware they supplied? That seems very odd. How thick is the fitting? "millimeters", what is the under head length of the banjo bolts? I doubt you could reuse yoru old but it wouldn't make sense they sent incorrect hardware with their own package.

[DarkAngel]

unfortunately they didn't gave any banjo bolts and sealing, only the brake hose :(

when you fastened the brake hose to the brake, it still moving

[WVZR-1]

unfortunately they didn't gave any banjo bolts and sealing, only the brake hose :(

when you fastened the brake hose to the brake, it still moving

You should have no problems sourcing the "banjo bolts" there local. Many Europeans use M10X1.0 spec banjo bolts and length is your only issue. I asked previously the "thickness" of your fitting on the new hose. You haven't mentioned that.

[DarkAngel]

You should have no problems sourcing the "banjo bolts" there local. Many Europeans use M10X1.0 spec banjo bolts and length is your only issue. I asked previously the "thickness" of your fitting on the new hose. You haven't mentioned that.

sorry for being that late :(
here is a pic of the original brake hose and the stainless ones
https://i.imgsafe.org/f282cd1db0.jpg
https://i.imgsafe.org/f282ae8d1d.jpg

[tf95ZR1]

It looks like the screws (bolts) and banjos are a set. ie: old banjo works
with old screw, new banjo works with new screw. Can you use the screws
that came with the banjos (post #9 pic in this thread) in the set?
See the (4) of them in the center-right in picture #9?

[Dynomite]

Got mine from Summit racing. Went with Russel brand. They fit perfectly.

Which Russel Brake Lines did you get from Summit?
Did you use your original Bango Bolts?

I assume the year of your ZR-1 is 94'?

[WVZR-1]

OP - this M10X1.0 banjo bolt seems to be dimensioned for 8mm thick fitting similar to what you've measured. You could take these dimensions to a local and see how difficult to buy locally. Don't forget the new washers! Take a hose with you.

Good luck. I don't see you having issues.

https://www.pegasusautoracing.com/productdetails.asp?RecID=6763

There are of course other sources but I was just using what you measured for quick research. An auto parts store in France if you offered up dimensions I'd think could help you.

[Dynomite]

Got mine from Summit racing. Went with Russel brand. They fit perfectly.

See Item #4 Below

1. C5-Z06 Calipers and Brackets.
http://i287.photobucket.com/albums/ll142/dynomite007/8C08E4B2-83A5-4FF1-AE3C-F9413D345D0E-2329-0000036615E90410_zpse864dc35.jpg
C5-Z06 Calipers Ebay (http://www.ebay.com/sch/i.html?_trksid=p3984.m570.l1313.TR0.TRC0.XC5+Z06+C alipers&_nkw=C5+Z06+Calipers&_sacat=0&_from=R40)
C5-Z06 Caliper Brackets Ebay (http://www.ebay.com/sch/i.html?_trksid=p2050601.m570.l1313.TR0.TRC0.Xc5+co rvette+caliper+brackets&_nkw=c5+corvette+caliper+brackets&_sacat=0&_from=R40)

2. Bracket Bolt Kits.
#14121 (Caliper Guide Pin) and Brake Hardware Kit (Spacers and Seals) #H5634Q at O'Reilly Auto Parts.

3. Adapters.
(Corvette C4 to C5-Z06 conversion brackets, late spindle) C4 to C5-Z06 Conversion Adapters (Ebay) (http://www.ebay.com/sch/i.html?_odkw=C4+corvette+C5%2FZ06++brake+adapter&_osacat=0&_from=R40&_trksid=p2045573.m570.l1313.TR0.TRC0.XC4+corvette+ C5++brake+adapter&_nkw=C4+corvette+C5++brake+adapter&_sacat=0)
(Note the countersunk surface for Bracket Boss)
http://i287.photobucket.com/albums/ll142/dynomite007/Dynomite17/aa675073-77c1-445b-89c4-689af95ac504.jpghttp://i287.photobucket.com/albums/ll142/dynomite007/Dynomite17/2f8f7c4e-edcf-4651-944d-affb7f12e766.jpg

4. SS Brake Lines.
Russel SS Brake Lines for 95' (https://www.summitracing.com/parts/rus-692180/overview/)
I used two aluminum washers under the Banjo Bolt Head and one aluminum washer between the brake line adapter and Banjo Bolt Port on the Calipers. The two washers keep the brake fluid port in the Banjo bolt centered on the brake line adapter. NO LEAKS
http://i287.photobucket.com/albums/ll142/dynomite007/Dynomite17/687d5d2a-e70d-47e9-b1f2-f3c0a52a9fde.jpg

Installation of Wilwood Rotors and C4 to C5-Z06 Conversion for a 95' ZR-1 (http://www.corvetteforum.com/forums/c4-zr-1-discussion/3005470-tech-info-lt5-modifications-rebuild-tricks-500-hp-12.html#post1590759175)

[Billy Mild]

See Item #4 Below

1. C5-Z06 Calipers and Brackets.
http://i287.photobucket.com/albums/ll142/dynomite007/8C08E4B2-83A5-4FF1-AE3C-F9413D345D0E-2329-0000036615E90410_zpse864dc35.jpg
C5-Z06 Calipers Ebay (http://www.ebay.com/sch/i.html?_trksid=p3984.m570.l1313.TR0.TRC0.XC5+Z06+C alipers&_nkw=C5+Z06+Calipers&_sacat=0&_from=R40)
C5-Z06 Caliper Brackets Ebay (http://www.ebay.com/sch/i.html?_trksid=p2050601.m570.l1313.TR0.TRC0.Xc5+co rvette+caliper+brackets&_nkw=c5+corvette+caliper+brackets&_sacat=0&_from=R40)

2. Bracket Bolt Kits.
#14121 (Caliper Guide Pin) and Brake Hardware Kit (Spacers and Seals) #H5634Q at O'Reilly Auto Parts.

3. Adapters.
(Corvette C4 to C5-Z06 conversion brackets, late spindle) C4 to C5-Z06 Conversion Adapters (Ebay) (http://www.ebay.com/sch/i.html?_odkw=C4+corvette+C5%2FZ06++brake+adapter&_osacat=0&_from=R40&_trksid=p2045573.m570.l1313.TR0.TRC0.XC4+corvette+ C5++brake+adapter&_nkw=C4+corvette+C5++brake+adapter&_sacat=0)
(Note the countersunk surface for Bracket Boss)
http://i287.photobucket.com/albums/ll142/dynomite007/Dynomite17/aa675073-77c1-445b-89c4-689af95ac504.jpghttp://i287.photobucket.com/albums/ll142/dynomite007/Dynomite17/2f8f7c4e-edcf-4651-944d-affb7f12e766.jpg

4. SS Brake Lines.
Russel SS Brake Lines for 95' (https://www.summitracing.com/parts/rus-692180/overview/)
I used two aluminum washers under the Banjo Bolt Head and one aluminum washer between the brake line adapter and Banjo Bolt Port on the Calipers. The two washers keep the brake fluid port in the Banjo bolt centered on the brake line adapter. NO LEAKS
http://i287.photobucket.com/albums/ll142/dynomite007/Dynomite17/687d5d2a-e70d-47e9-b1f2-f3c0a52a9fde.jpg

Installation of Wilwood Rotors and C4 to C5-Z06 Conversion for a 95' ZR-1 (http://www.corvetteforum.com/forums/c4-zr-1-discussion/3005470-tech-info-lt5-modifications-rebuild-tricks-500-hp-12.html#post1590759175)
I do like the looks of these, but are they really any better than J55 brakes? They are both 13" rotors and 2 piston calipers.

Sent from my Nexus 6 using ZR-1 Net Registry mobile app (http://r.tapatalk.com/byo?rid=90383)

[Dynomite]

I am not familiar with J55 but your assessment is prolly correct If the pistons are of same size and hats are separate from rotors in terms of heat transfer to wheel hub.

I like the separate Hats.


Sent from my iPhone using ZR-1 Net Registry (https://siteowners.tapatalk.com/byo/displayAndDownloadByoApp?rid=90383)

[Billy Mild]

The J55 brakes are the one the stock ZR1 comes with.

[Dynomite]

The J55 brakes are the one the stock ZR1 comes with.

Oh.......:)

The J55 are single piece rotors and the J55 Calipers are a bit smaller than the C5-Z06 Calipers as are the brake pads. I like the Two Piece Wilwood Rotors (Hats and Rotor) and the Wilwood Rotors are drilled for greater heat dissipation. The two pistons on the C5-Z06 Calipers may also be larger diameter.

These C5-Z06 Calipers will not clear stock Saw Blades but just clear A-Molds. On a 90' I had to shift the thin wheel weights to the slot of the spokes. On the 95' A-molds the thin wheel weights just clear the Calipers. The photo below is the 90' A-Molds where the wheel weights had to be moved to inside the spokes.

http://i287.photobucket.com/albums/ll142/dynomite007/Dynomite2/89662f3a-f722-4131-a89e-e73e118729f7.jpg

[DarkAngel]

with looooooot of delay, thanks everyone for all your answers :handshak:
i've finally changed my brake hose this we and with the new banjo bolt, it fit perfectly

the pedal feel is better now
not as good as i would have excpected but it's ok :)