AO Engineering dual caliper kit installed
Team Owner
Joined: Jul 1999
Posts: 50,808
Likes: 10
From: Buy USA products! Check the label! Employ Americans
Re: AO Engineering dual caliper kit installed (ericcer)
the dual rear caliper are a total waste. Two in the front is a ton of unsprung weight. It's cool and been tried by some race teams like Porsche but abandoned.
Pro
Joined: Mar 2001
Posts: 699
Likes: 0
From: Camp Hill PA
Re: AO Engineering dual caliper kit installed (John Shiels)
the dual rear caliper are a total waste. Two in the front is a ton of unsprung weight. It's cool and been tried by some race teams like Porsche but abandoned.
Safety Car
Joined: May 2002
Posts: 4,010
Likes: 26
From: Somewhere nowhere
Re: AO Engineering dual caliper kit installed
I don't see a TON of weight. the alum calipers are pretty light, and if the brackets are alum or titiaum $$, the added weight should be minimal. everything is a trade off in life. You can get a set of CCW's and hoosiers which will save more than a few pounds.
I still think it's pretty cool. you'll definately be the only one at the track with the setup :cool:
if you increase the front capacity, you have to increase the rear capacity as well to keep the braking balanced.
definately something different......
here is one plus point no one can argue with :D
you'll likely NEVER have to change pads at the track.
I still think it's pretty cool. you'll definately be the only one at the track with the setup :cool:
if you increase the front capacity, you have to increase the rear capacity as well to keep the braking balanced.
definately something different......
here is one plus point no one can argue with :D
you'll likely NEVER have to change pads at the track.
Team Owner
Joined: Mar 2001
Posts: 30,858
Likes: 293
From: Boston, Dallas, Detroit, SoCal, back to Boston MA
Re: AO Engineering dual caliper kit installed (larryfs)
I've heard the problem with the setup is the heat it generates, even with aftermarket rotors, they're still the stock size.
Look forward to your report.
Look forward to your report.
Drifting
Joined: Jul 2001
Posts: 1,296
Likes: 0
From: Largo Florida
Re: AO Engineering dual caliper kit installed (John Shiels)
the dual rear caliper are a total waste. Two in the front is a ton of unsprung weight. It's cool and been tried by some race teams like Porsche but abandoned.
I would like to hear from someone that have actually tried this system on the track instead of these people knocking it who have not. I won't be taking mine to the track so maybe Tom will.
A/O raced it on the track and they claimed it outperfomed the competition. Of course they would say that.
Team Owner
Joined: Mar 2001
Posts: 30,858
Likes: 293
From: Boston, Dallas, Detroit, SoCal, back to Boston MA
Re: AO Engineering dual caliper kit installed (John Shiels)
the dual rear caliper are a total waste. Two in the front is a ton of unsprung weight. It's cool and been tried by some race teams like Porsche but abandoned.
You cannot double the front w/o doing something out back.
Le Mans Master
Joined: Aug 2002
Posts: 7,441
Likes: 421
From: Ventura County, CA
St. Jude Donor '05 thru '24
Re: AO Engineering dual caliper kit installed (tjwong)
WOW :eek: That is the nicest looking brake setup I have seen....So its $900 for the brackets, right? Seems like its an awsome system.
Le Mans Master
Joined: Jun 2002
Posts: 6,097
Likes: 0
From: High Plains Drifter Fayetteville, AR
Re: AO Engineering dual caliper kit installed (tjwong)
but I still have a slightly low pedal.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Drifting
Joined: Jul 2001
Posts: 1,296
Likes: 0
From: Largo Florida
Re: AO Engineering dual caliper kit installed (John Shiels)
the dual rear caliper are a total waste. Two in the front is a ton of unsprung weight. It's cool and been tried by some race teams like Porsche but abandoned.
I would like to hear from someone that have actually tried this system on the track instead of these people knocking it who have not. I won't be taking mine to the track so maybe Tom will.
A/O raced it on the track and they claimed it outperfomed the competition. Of course they would say that.
Safety Car
Joined: Feb 2000
Posts: 4,564
Likes: 110
From: Austin Texas
Re: AO Engineering dual caliper kit installed (ericcer)
I know someone in Houston who used it on his C4...
Track raced & autocrossed the car a lot- it was an RP car (supercharged 383 LT1)
He liked the A/O system a lot. Only complaint was the low pedal, and before he had a chance to change it out he converted the car over to a Speed Challenge car. Had to take the system off as it wasn't allowed in their rules.
Track raced & autocrossed the car a lot- it was an RP car (supercharged 383 LT1)
He liked the A/O system a lot. Only complaint was the low pedal, and before he had a chance to change it out he converted the car over to a Speed Challenge car. Had to take the system off as it wasn't allowed in their rules.
Safety Car
Joined: Feb 1999
Posts: 3,504
Likes: 4
From: Mexico Beach FL
Re: AO Engineering dual caliper kit installed (Joe90)
From a design standpoint, you can create almost twice the heat in the rotor; but, since there are two calipers blocking the cooling of the rotor, you have less cooling of the rotor than a stock one-caliper system. My guess is the first time you hit them they would probably be awsome. But, if the rotors weren't given time to cool, the brakes would fade more quickly than a single caliper system. The rotor is cooled when it is NOT shrouded by the calipers and when air can pass through the vents. Since C4, and C5 for that matter, calipers do not have open tops, they do not allow much cooling like the Brembos or C2 -C3 calipers.
I have C5 brakes on the front of my C4. If I didn't have them, I would probably go with the Force-10 setup. The price isn't bad and they seem like they would cool with the open top calipers. http://www.stainlesssteelbrakes.com/...ette&year=1992
Tom Piper
[Modified by Tom Piper, 8:13 AM 4/6/2004]
I have C5 brakes on the front of my C4. If I didn't have them, I would probably go with the Force-10 setup. The price isn't bad and they seem like they would cool with the open top calipers. http://www.stainlesssteelbrakes.com/...ette&year=1992
Tom Piper
[Modified by Tom Piper, 8:13 AM 4/6/2004]
Race Director
Joined: Dec 1999
Posts: 16,945
Likes: 9
Re: AO Engineering dual caliper kit installed (John Shiels)
Also the calipers seem to be placed just where they fit, no consideration about brake torque induced anti or pro dive has been taken into account as it seems
What about the MC, do you use the stocker with the caliper piston surface doubled?
[Modified by Twin_Turbo, 8:37 AM 4/6/2004]
What about the MC, do you use the stocker with the caliper piston surface doubled?
[Modified by Twin_Turbo, 8:37 AM 4/6/2004]
Melting Slicks
Joined: Apr 2000
Posts: 3,490
Likes: 2
From: Oviedo FL
Re: AO Engineering dual caliper kit installed (Twin_Turbo)
I have the 6-piston Wilwoods on mine and they require more fluid than the stockers... so I would guess having 2 more pistons up front with this configuration, they too would require more fluid. Hence, the additional travel in the pedal.
I am in the process of swapping to the truck MC which has a much bigger piston on it and should push a bunch more fluid to the calipers. My guess is this setup probably needs the same.
Mike
I am in the process of swapping to the truck MC which has a much bigger piston on it and should push a bunch more fluid to the calipers. My guess is this setup probably needs the same.
Mike
Race Director
Joined: Dec 1999
Posts: 16,945
Likes: 9
Re: AO Engineering dual caliper kit installed (luvmy92)
I have the 6-piston Wilwoods on mine and they require more fluid than the stockers... so I would guess having 2 more pistons up front with this configuration, they too would require more fluid. Hence, the additional travel in the pedal.
What kind of wilwoods are you running? I have Integra 6 differential bores with high temp. short track pistons and the same but then Integra 4 in the backÍ have a C4 MC and fear it may not give enough displacement, meaning I must convert to a truck setup too or maybe a dual setup with a bias bar.
Safety Car
Joined: Feb 2001
Posts: 4,397
Likes: 0
From: Looks like I picked the wrong week to stop sniffin glue Orlando
Re: AO Engineering dual caliper kit installed (luvmy92)
I am in the process of swapping to the truck MC which has a much bigger piston on it and should push a bunch more fluid to the calipers. My guess is this setup probably needs the same.
Mike
Mike
:cheers:
Melting Slicks
Joined: Apr 2000
Posts: 3,490
Likes: 2
From: Oviedo FL
Re: AO Engineering dual caliper kit installed (IBEAM700)
I believe it is from a late-model Tahoe. I had Corey Henderson from San Antonio set it up for me. It bolts right into the stock location but the lines are on the opposite side of the MC. John had to run new lines but it looks like it cam from the factory the way he did it.
I see you are from Orlando. Do I know you? You are more than welcome to check it out... just IM me.
Mike
I see you are from Orlando. Do I know you? You are more than welcome to check it out... just IM me.
Mike
Intermediate
Joined: Jun 2003
Posts: 43
Likes: 1
From: Morris Plains NJ
Re: AO Engineering dual caliper kit installed (Widebody)
Tom, you may have to use the Camaro master to get rid of the low pedal. I remember reading an article where the Vette Doctors had installed the same kit and needed the extra volume to bring the pedal up. I did the same master for my Big Red/C5 front on the rear combo. I think I still have the part # for the Wagner equivalent. Let me know if you need it.
Terry
Terry
Does anyone know the bore of the Camaro master cylinder, as compared to the stock C4 master cylinder, and whether all the fittings and mounts line up OK?
Anybody other suggestions for master cylinders with a bit larger bore would be appreciated. What year Tahoe was that, and any bore size data?
I'm using the DRM/Wilwood front kit (6-pot GN-III calipers), which have about 1.5x the piston area of the stock PBR front calipers. The added front bias I was able to balance acceptably by using a much more agressive pad in the rear, but I still have a softer pedal than I'd like, and I still haven't ruled out slightly larger rear calipers.
Thanks!
[Modified by z07lt1, 9:23 AM 4/13/2004]
Melting Slicks
Joined: Apr 2000
Posts: 3,490
Likes: 2
From: Oviedo FL
Re: AO Engineering dual caliper kit installed (z07lt1)
I have the same setup as you in the front and am in the process of installing the Superlites in the rear. Just give DRM a call and I'm sure they will tell you what truck MC they sell with their Wilwood kit.
Let me just say the piston on the truck MC is huge in comparison to the stock MC.
Mike
[Modified by luvmy92, 10:29 AM 4/13/2004]
Let me just say the piston on the truck MC is huge in comparison to the stock MC.
Mike
[Modified by luvmy92, 10:29 AM 4/13/2004]
Thread Starter
Le Mans Master
Joined: Jan 2003
Posts: 8,596
Likes: 19
From: Portland Oregon
Re: AO Engineering dual caliper kit installed (luvmy92)
Doesn't your master cylinder now have an internal porportioning valve? My 95 does and the replacement F body MC do not have an internal PV. So that means that an external PV such as what is offered by DRM will be needed in order to porportion the brakes properly. Incidentally my brakes are coming up now. I am going to bleed the system again today to see if there is any more trapped air in the system.
I can't beleive the amount of a difference this system has made, when I want the car to stop it stops hard. I tried a few 70 to 10 mph stops, not to the point that the ABS kicks in but very close I can say that this car has never in its life stopped liked this. I don't know what its going to be like on the track but for the street the braking improvement over what it was is nothing short of phenominal!
I can't beleive the amount of a difference this system has made, when I want the car to stop it stops hard. I tried a few 70 to 10 mph stops, not to the point that the ABS kicks in but very close I can say that this car has never in its life stopped liked this. I don't know what its going to be like on the track but for the street the braking improvement over what it was is nothing short of phenominal!