I received and installed the Hydroboost tonight. An easy installation. The main benefit for me is that it will improve brake performance since I have a forced induction application. Although it's rare that you would apply the brake under boost, when no vacuum is available for assist, it does help with power braking. I have played around with spooling the turbo's up by pwoer braking it at the line, simulating a launch, but without a check valve, the vacuum assist fades away. Now since brake assist is not dependant on manifold vacuum it's a non-issue (since this is a street car, I don't plan on installing a transbrake or line-lock).

 

Cool setup

I just went through $2200.00 worth of repairs on my 2002 silverado work truck with hydroboost.
The stupid oil changing place dumped something (we think synthetic fluid ) into it and every seal and piece of rubber swelled up, and locked the brakes solid...Of course they denied doing it, but they were the only ones to have ever been under the hood..

And before you feel sorry for me, I just sign the tickets, I don't have to pay for it....Oh company trucks sure are nice :lol: :lol: :lol:

 

That didn't take you long Monty. You will like the added power of the hydraboost over the vacuum power assist.
I still would like to hear more about spooling up or any other testing you have done with the car.
I would also like to hear your opinion on how the new hydraboost brakes feel. How you feel their power compares to vacuum assisted brakes.

 

I still have to hook up the Steeroids/Hydroboost hsoes, but that shouldn't take too long. I was reading the article in Vette about the Hydroboost, and they said the supplied lines work equally as well with the Steeroids kit as with the stock steering ram/pump. we'll see, but if not there's a good speed shop 5 minutes from work that stocks the entire Aeroquip and Earl's catalog (or so it seems). It'll probably be a couple weeks before I drive the car again, depending on the weather here in Chicago. Last Year I was able to drive until the end of November or so, I hope the same is true this year. I only have about 300 miles on the car, and I'd like to get more so I can work any bugs out before next spring. I plan on making my official "debut" nnext spring - I've already got a few races lines up: a N20 BBC Pro-Street Nova, a 1000hp dyno-queen single turbo Supra, and a Vorteched stroked Mustang. That's another reason I need to get some tires and stronger rear supension. These races are all set up for a lenient IHRA track (GLD), so don't think I'm advocating street racing.

As I mentioned, I tried spooling up the turbo's while holding the brakes a couple of times. It's not really necessary, becuase the turbo's start making boost at about 2600rpm, and I have a 3200rpm stall converter, so they spool up quickly anyway. But for fun I was playing around with power braking. Anyway, when the system goes from manifold vacuum to boost, I could feel the vacuum assist being lost, requiring more pedal effort. Obviously, the Hydroboost makes this a non-issue.

Desertdawg,

What synthetic power steering fluid was used, or did they use ATF or something? I was planning on using Redline power steering(synthetic I beleive) fluid, do you not recommend it for some reason?


[Modified by Monty, 11:05 AM 10/1/2002]

 

Another hydroboost fan here ,,,, I had good brakes prior to the installation and now they are what a performance vehicle should have . In short the stopping power is absolutely great .

geo :smash:

 

Anyonce tried hydroboost with Force 10 or Wilwood calipers?

 

I'm gonna, have HB & Wilwood Integra 4 calipers (need to fab brackets first though... too much stuff to do so don't expect anything soon :) )

 

I don't know what was poured into it, It could have been anything from ATF to power steering fluid. We just saw a seperate oil bubbling in the original brake fluid. From the factory it has DOT 3. And that is what the GM shop put back in it after they replaced every rubber part in the entire system.

 

Did you all check out the "Auto Gallery" ? Somebodys pic from the forum is there -> http://www.hydroboost.com/gallery/index.html

 

That is dman535's vette. I actually drove it and the hydro system is great.