School me on the advantages of a Hydo-Boost system. - Moparts Forums

Register Log In Moparts Forums Moparts Question and Answer School me on the advantages of a Hydo-Boost system.

Print Thread

School me on the advantages of a Hydo-Boost system. #677549 04/22/10 08:27 PM 04/22/10 08:27 PM
Joined: Dec 2005 Posts: 260 WV. C Challenger_Nut OP enthusiast
Challenger_Nut OP enthusiast C Joined: Dec 2005 Posts: 260 WV.	Dumb question but what is the advantage of the hydo boost? I understand the vaccum issue and packaging along with not having to deal w/ a P.B. booster on a conversion from manual brakes...... What I am really asking, is there a performance advantage or is it just for the reasons I have stated above? I have just ordered the Wilwood 6 Piston front and 4 Piston rear kits and was planning on the 7/8ths Wilwood master cylinder for a manual set-up. I want the brakes to perform for spirited Mountian road driving here in West Virginia and possibly some autocrossing. Please tell me why I would want to part with another $700.

Re: School me on the advantages of a Hydo-Boost system. [Re: Challenger_Nut] #677550 04/22/10 08:29 PM 04/22/10 08:29 PM
Joined: Jan 2003 Posts: 104,346 Garden Grove, CA OzHemi Penguin-hating Ginger
OzHemi Penguin-hating Ginger Joined: Jan 2003 Posts: 104,346 Garden Grove, CA	I believe aside from the vacuum issue, hydo-boost can generate a higher braking pressure perhaps, which is why they are used from the factory on heavier duty 3/4 and 1 ton pickups...(that might not generate enough added boost with vacuum alone) ? Of course you need power steering to run it too, which figure most people with power brakes would already have.

Re: School me on the advantages of a Hydo-Boost system. [Re: Challenger_Nut] #677551 04/22/10 08:32 PM 04/22/10 08:32 PM
Joined: Nov 2006 Posts: 75 Illinois ChrisDavis member
ChrisDavis member Joined: Nov 2006 Posts: 75 Illinois	I have one on my car. I am very happy with it. The only advantage you missed is that it can easily develop 2000 psi + of line pressure. That is significantly more than vacuum assist. My pedal is fairly sensitive, but is no problem. Make sure the rest of the brake system is up to it.

Re: School me on the advantages of a Hydo-Boost system. [Re: Challenger_Nut] #677552 04/22/10 08:33 PM 04/22/10 08:33 PM
Joined: Dec 2007 Posts: 7,759 So Cal HealthServices Why would you even post that?
HealthServices Why would you even post that? Joined: Dec 2007 Posts: 7,759 So Cal	After the 3-4 heated autocross stops you may not have the leg power to continue to stop the car as easily as a hydro boosted car. Brakes will fad and with repeated use, some may will require more pressure. That�s not to say all will. With a Vacuum boosted car there is no way the vacuum can keep up with a modified motor having less than stock vacuum. Allen Here's a novel idea, let's not throw a bunch of parts at the car hoping it will fix the problem and instead spend a little time diagnosing it first. Life was a little easier when I was just a wrench.

Re: School me on the advantages of a Hydo-Boost system. [Re: HealthServices] #677553 04/22/10 08:36 PM 04/22/10 08:36 PM
Joined: Dec 2007 Posts: 7,759 So Cal HealthServices Why would you even post that?
HealthServices Why would you even post that? Joined: Dec 2007 Posts: 7,759 So Cal	It is a little harder to modulate the brakes but you can do it. I have it on my truck and it works well. Kenny brought his Duster (?) to the Spring Fling and it has Hydro boost. 5941480-aIMG_5028.jpg (59 downloads) Allen Here's a novel idea, let's not throw a bunch of parts at the car hoping it will fix the problem and instead spend a little time diagnosing it first. Life was a little easier when I was just a wrench.

Re: School me on the advantages of a Hydo-Boost system. [Re: HealthServices] #677554 04/22/10 08:46 PM 04/22/10 08:46 PM
Joined: Dec 2007 Posts: 7,759 So Cal HealthServices Why would you even post that?
HealthServices Why would you even post that? Joined: Dec 2007 Posts: 7,759 So Cal	The one problem I had with hydro boost (in the 1 ton truck) is you have only one good stop if the motor is off, and in a 1 ton truck pulling a trailer, its kind of hard to turn and stop the thing. I'm sure in a light car such as yours you will not have that kind of problem. Allen Here's a novel idea, let's not throw a bunch of parts at the car hoping it will fix the problem and instead spend a little time diagnosing it first. Life was a little easier when I was just a wrench.

Re: School me on the advantages of a Hydo-Boost system. [Re: HealthServices] #677555 04/22/10 09:10 PM 04/22/10 09:10 PM
Joined: Jan 2003 Posts: 104,346 Garden Grove, CA OzHemi Penguin-hating Ginger
OzHemi Penguin-hating Ginger Joined: Jan 2003 Posts: 104,346 Garden Grove, CA	Quote: The one problem I had with hydro boost (in the 1 ton truck) is you have only one good stop if the motor is off, and in a 1 ton truck pulling a trailer, its kind of hard to turn and stop the thing. I'm sure in a light car such as yours you will not have that kind of problem. I have it in my truck too...and did not notice any problem, but I don't tow a trailer all too often..

Re: School me on the advantages of a Hydo-Boost system. [Re: OzHemi] #677556 04/22/10 09:21 PM 04/22/10 09:21 PM
Joined: Dec 2007 Posts: 7,759 So Cal HealthServices Why would you even post that?
HealthServices Why would you even post that? Joined: Dec 2007 Posts: 7,759 So Cal	I ran out of diesel about a 1/8 mile from the off ramp, coasting, but with a trailer and a car. I had to hit the brakes a little to make the turn and did not have anything left for stop at the gas pump! Both feet pushing on the pedal I thought for sure the steering wheel was bent when I finally stopped. Thinking back I should of used the trailer brake for the turn and the reserve for the stop at the pump. Allen Here's a novel idea, let's not throw a bunch of parts at the car hoping it will fix the problem and instead spend a little time diagnosing it first. Life was a little easier when I was just a wrench.

Re: School me on the advantages of a Hydo-Boost system. [Re: HealthServices] #677557 04/22/10 09:24 PM 04/22/10 09:24 PM
Joined: Jan 2003 Posts: 104,346 Garden Grove, CA OzHemi Penguin-hating Ginger
OzHemi Penguin-hating Ginger Joined: Jan 2003 Posts: 104,346 Garden Grove, CA	That just goes to show don't run out of fuel, and your brakes will be fine in general.

Re: School me on the advantages of a Hydo-Boost system. [Re: OzHemi] #677558 04/22/10 11:32 PM 04/22/10 11:32 PM
Joined: Dec 2007 Posts: 7,759 So Cal HealthServices Why would you even post that?
HealthServices Why would you even post that? Joined: Dec 2007 Posts: 7,759 So Cal	Allen Here's a novel idea, let's not throw a bunch of parts at the car hoping it will fix the problem and instead spend a little time diagnosing it first. Life was a little easier when I was just a wrench.

Re: School me on the advantages of a Hydo-Boost system. [Re: HealthServices] #677559 04/23/10 12:22 AM 04/23/10 12:22 AM
Joined: Oct 2005 Posts: 218 id usa 4 4spdfury enthusiast
4spdfury enthusiast 4 Joined: Oct 2005 Posts: 218 id usa	Wouldnt it have been just as hard to stop if it had vaccum brakes. If the engine is not running you are not producing vaccum to operate the vaccum booster.

Re: School me on the advantages of a Hydo-Boost system. [Re: 4spdfury] #677560 04/23/10 12:27 AM 04/23/10 12:27 AM
Joined: Jan 2003 Posts: 104,346 Garden Grove, CA OzHemi Penguin-hating Ginger
OzHemi Penguin-hating Ginger Joined: Jan 2003 Posts: 104,346 Garden Grove, CA	With a vacuum booster you usually have enough left for a couple of pumps when the engine shuts off...with hydro-boost..once the power steering pump stops turning, you have zero boost.

Re: School me on the advantages of a Hydo-Boost system. [Re: OzHemi] #677561 04/23/10 01:17 AM 04/23/10 01:17 AM
Joined: Dec 2007 Posts: 7,759 So Cal HealthServices Why would you even post that?
HealthServices Why would you even post that? Joined: Dec 2007 Posts: 7,759 So Cal	With the hydro boost there is a small cylinder that holds a charge, it is supose to give you one good stop. Allen Here's a novel idea, let's not throw a bunch of parts at the car hoping it will fix the problem and instead spend a little time diagnosing it first. Life was a little easier when I was just a wrench.

Re: School me on the advantages of a Hydo-Boost system. [Re: HealthServices] #677562 04/23/10 01:29 AM 04/23/10 01:29 AM
Joined: Jan 2003 Posts: 104,346 Garden Grove, CA OzHemi Penguin-hating Ginger
OzHemi Penguin-hating Ginger Joined: Jan 2003 Posts: 104,346 Garden Grove, CA	I didn't know that...(or ever noticed it )

Re: School me on the advantages of a Hydo-Boost system. [Re: OzHemi] #677563 04/23/10 02:35 AM 04/23/10 02:35 AM
Joined: Dec 2007 Posts: 7,759 So Cal HealthServices Why would you even post that?
HealthServices Why would you even post that? Joined: Dec 2007 Posts: 7,759 So Cal	I believe this part is nitrogen filled, (some are a spring now) the power steering pump pushes the piston back and excess pressure is used for stopping. If the pump pressure is not there the nitrogen pressured piston gives you one good stop. 5942129-1aIMG_5028.jpg (57 downloads) Allen Here's a novel idea, let's not throw a bunch of parts at the car hoping it will fix the problem and instead spend a little time diagnosing it first. Life was a little easier when I was just a wrench.

Re: School me on the advantages of a Hydo-Boost system. [Re: HealthServices] #677564 04/23/10 03:00 AM 04/23/10 03:00 AM
Joined: Sep 2005 Posts: 6,516 Santa Cruz, California L Lefty master
Lefty master L Joined: Sep 2005 Posts: 6,516 Santa Cruz, California	Quote: Please tell me why I would want to part with another $700. Definitely try the manual brake setup first. There are advantages like always having the same pedal feel and stopping power regardless if the engine is running or not. Also I'm of the opinion there is better feel to the pedal as far as braking right on the edge of lockup. Your setup sounds like it may perform fine without the extra boost, but that is up to you to decide. The brakes may take a little getting used to, but I would try manual first, you can always add the booster later. I've installed two of the Wilwood 7/8" MC on a manual setup and liked it.

Re: School me on the advantages of a Hydo-Boost system. [Re: Lefty] #677565 04/23/10 03:05 AM 04/23/10 03:05 AM
Joined: Dec 2007 Posts: 7,759 So Cal HealthServices Why would you even post that?
HealthServices Why would you even post that? Joined: Dec 2007 Posts: 7,759 So Cal	You will get the best feedback with the manual brakes Allen Here's a novel idea, let's not throw a bunch of parts at the car hoping it will fix the problem and instead spend a little time diagnosing it first. Life was a little easier when I was just a wrench.

Re: School me on the advantages of a Hydo-Boost system. [Re: Lefty] #677566 04/23/10 08:28 PM 04/23/10 08:28 PM
Joined: Dec 2005 Posts: 260 WV. C Challenger_Nut OP enthusiast
Challenger_Nut OP enthusiast C Joined: Dec 2005 Posts: 260 WV.	Thanks for all of the feedback. Quote: Quote: Please tell me why I would want to part with another $700. Definitely try the manual brake setup first. There are advantages like always having the same pedal feel and stopping power regardless if the engine is running or not. Also I'm of the opinion there is better feel to the pedal as far as braking right on the edge of lockup. Your setup sounds like it may perform fine without the extra boost, but that is up to you to decide. The brakes may take a little getting used to, but I would try manual first, you can always add the booster later. I've installed two of the Wilwood 7/8" MC on a manual setup and liked it. Lefty, That was my original thought..... I would start with the manual setup and add the H-Boost if needed. I just don't like the idea of spending $300 on the 7/8 ths M.C. only to spend another $300 a new M.C. if I go with the H.B. system if I can avoid it. My biggest concern is the loss of feel of what my car is doing as far as the brakes go, especially knowing when the point of lock up is knocking at the door. As far as performace in regards to stopping distance and stopping power does the H.B... make that much difference or can I get the same results with the manual system but just have to apply more pedal pressure? Also in reality am I going to experience much fade on my mountain runs or is it just during an autocross event that I will experience it?

Re: School me on the advantages of a Hydo-Boost system. [Re: Challenger_Nut] #677567 04/23/10 09:05 PM 04/23/10 09:05 PM
Joined: Jan 2003 Posts: 584 San Jose, CA Blue69Charger mopar
Blue69Charger mopar Joined: Jan 2003 Posts: 584 San Jose, CA	It made a big difference in stopping power on my charger. I went with a hydroboost because there wasn't a stock 4 wheel disc vacuum brake booster. I went with a 1.25" bore piston to have a better pedal feel. You are supposed to have 2-3 stops with the engine off with a properly working accumulator. Mine does about two and a half. There is also an optional longer accumulator, which I think offers more stops. But they are usually mounted on the higher-output hydroboost units, so you might want to buy one with a gold accumulator and swap in the long one. Another benefit is valve cover clearance (If you mount it upside-down). I can take out the driver's side master cylinder without toughing the booster, master cylinder or lines. 5943647-Hemi(2).JPG (47 downloads)

Moderated by Al_Alguire, Hotwheelsjr, moparts, not_a_charger, RangerDan440, tboomer

Hop To

Powered by UBB.threads™ PHP Forum Software 7.7.1