j55 C5 brakes

2410 Views 15 Replies 8 Participants Last post by jrzvette, Jun 8, 2007

TexasDanny

Discussion Starter · Jun 5, 2007

What's the major difference and sizes for these to brake systems for a 89 C4?

Are they interchangeable?

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Coolblue65

· #2 · Jun 5, 2007

J55 & C5 brakes are both 13" rotors with dual piston calipers, but that is about where the similarities end - no parts are interchangable.

The C5 rotors are about twice as thick as the J55's. The C5 caliper is also a bit heavier duty and is a bolt in design unlike the J55's quick change pin style. Also that pad surface is bigger with the C5s.

TexasDanny

Discussion Starter · #3 · Jun 5, 2007

Thanks

That makes my mind up.

Coolblue65

· #4 · Jun 5, 2007

Yeah as far as I am concerned there is nothing close to the C5 brakes for the price. Its the best upgrade I have made.

jrzvette

· #5 · Jun 6, 2007

J55 was an option on the early C4s and standard for 95 & 96. This upgrade can be used with any C4 wheel. C5 brakes require either A-molds (ZR1 wheels) or C5 wheels. They will not fit with sawblades.

Tatooamps

· #6 · Jun 6, 2007

Will C-5 Brakes fit under Salad Shooters?

Coolblue65

· #7 · Jun 6, 2007

I am assuming Salad Shooters are the wheels you have in your avatar- so no they don't they need A-molds or aftermarket.

Kubs

· #8 · Jun 6, 2007

What is the difference between the "salad shooters" and the A-molds? Aren't they both stock 17x9.5 wheels?

Coolblue65

· #9 · Jun 6, 2007 (Edited)

basically the C5 rotor and therefore the caliper are not set as far back in the wheel as a C4. The inside part of the face of the sawblade wheels will hit the face of the caliper- where as the A-mold/C5/aftermarket wheels allows more clearance. Does that make sense?

You can see what I am talking about in this pic, notice how the Smaller C4 rotor hat sticks way out...which sets in farther back in the wheel.

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Luke303rd

· #10 · Jun 6, 2007

Are there any kits to fit C5 brakes to a C3?

Kubs

· #11 · Jun 6, 2007

Oh ok I get it. Its not a matter of overall diameter but front to back clearance. That makes sense, thanks a lot :thumbsup:

grumpyvette

· #12 · Jun 7, 2007

if someone can post more info on the brake upgrade please do so.
(heres limited info)

http://www.electro-dynamics.com/brakes/brakes3.html

https://www.superchevyperformance.com/Articles.asp?ID=124

http://www.teamzr1.com/eric.html

http://www.corvettemagazine.com/2001/august/brake-upgrade/brake1.asp

http://www.ecklers.com/product.asp?pf_id=45780&dept_id=1033

http://www.ecklers.com/product.asp?pf_id=41806&dept_id=1033

http://img.photobucket.com/albums/v290/ThunderKiss/Miscellaneous/C5_caliper_upgrade.jpg

http://www.digitalcorvettes.com/forums/showthread.php?t=48855&highlight=c5+brakes

btw does anyone know where to get a significantly smaller in dia power brake booster thats an improvement over the stock booster

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Kubs

· #13 · Jun 7, 2007

I have one like this with a Corvette master cylinder on my Vega and it works great.

http://cgi.ebay.com/ebaymotors/7-Du...tegoryZ34199QQihZ004QQitemZ140124026301QQrdZ1

I dont know if its better than stock though.

jrzvette

· #14 · Jun 7, 2007

Luke303rd said:
Are there any kits to fit C5 brakes to a C3?

The problem will be with the wheels; C5 brakes require at least a 17" wheel. (see post above)

I'd like to know if I can use the original brakes from my C4 on my C3.

NICKO

· #15 · Jun 8, 2007

I would like to put C5 brakes on my 86. does anyone sell just the adapters for this year or maybe the specs to make some?:lookinup:

jrzvette

· #16 · Jun 8, 2007

NICKO said:
I would like to put C5 brakes on my 86. does anyone sell just the adapters for this year or maybe the specs to make some?:lookinup:

VBP has them, see article link above, or contact wdo-mkr.

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