Hydroboost brakes, what do ya think?
Le Mans Master
Joined: Jan 2002
Posts: 9,036
Likes: 13
From: Edmonton AB
Originally Posted by cuisinartvette
.. but if your'e engine looses power you will NOT
stop or turn no matter what...
stop or turn no matter what...
boost is gone and the steering gets heavy immediately.
However, there is reserve brake boost for more than
one pedal application.
I don't recall from personal experience with a truck
how many applications you get but just like
when you lose vacuum assist, you need to
make each one count.
The gold coloured cylinder in the picture above is the
accumulator. Here is a clip from Hydratech's FAQ:
Q: What is the nitrogen reserve / accumulator bottle
and what are its benefits?
A: The bottle on the side of most hydraulic brake
assist units is referred to as an accumulator or
nitrogen reserve. This stores up hydraulic power
steering pressure in the event of an engine stall
condition, to provide reserve brake assist power for up
to 3 applications of the brake, similar to how a
vacuum booster would function in an engine stall
condition. Upon the first application of the brakes
after an engine stall, you would find approximately
60 - 75% of the normal assist available, then if you
were to release and apply the brakes again, you would
find approximately 30 - 40% assist, then again
approximately 10 - 20%, until you have depleted all
stored reserve assist. Once you have depleted all of
the stored pressure, the brakes will no longer have
power assist and will be manual in their operations.
The minute you start the vehicle back up again, the
accumulator gets filled back up with pressurized ps
fluid again and is ready to go.
Le Mans Master
Joined: Jan 2002
Posts: 9,036
Likes: 13
From: Edmonton AB
Originally Posted by 86VX1
Why would you need hydro assist brakes?
(Perhaps) if you had a monster cam, but other than
that, why would you consider doing this to your 'Vette?
(Perhaps) if you had a monster cam, but other than
that, why would you consider doing this to your 'Vette?
booster was several hundred dollars and the aftermarket
boosters were not well regarded. Comments indicated
that no matter which one I choose, it was a matter of
time before the booster would need to be replaced yet
again.
Although the Hydroboost was more money than the
OEM replacement, I know how this system performs
and I really like the pedal feel I have experienced.
When I did the math, anticipating that chances were
good that I'd go through two OEM-style boosters during
my time with this car, the decision back then was
a no-brainer.
Since then, members have reported good experiences
with the metal canister booster for the C4 and good
experiences in general with certain aftermarket plastic
boosters. All of which price out a good deal less than
the OEM plastic booster I was considering.
Gotta love progress.
I don't regret my purchase. The booster on my car is
OE and I expect that the addition of headers this year
will contribute to its eventual demise.
Originally Posted by 86VX1
Wouldn't this create more parasitic drag from
the power steering pump and cost you some power?
the power steering pump and cost you some power?
to give up a few HP for more braking power.
.
Team Owner
Joined: Nov 1999
Posts: 32,782
Likes: 11
From: Former NCM Drag Racing coordinator, National director Corvette Challenge Spring Hill, Tennessee: Whiting, New Jersey
Cruise-In VI Veteran
Cruise-In VII Veteran
[QUOTE=steve40th Or is this drag only type stuff for you?[/QUOTE]
Ya, just for the track.
Ya, just for the track.
