Hydroboost teaser

cahilj · Posted: Sun Oct 05, 2008 7:12 pm Post subject: Hydroboost teaser

Out of a ~95 Astro van-

I joined the J booster bracket with the Astro bracket-

Test fit during the 2.2 removal-

I installed the booster upside down from the Astro configuration, just to save space on the side closest to the engine. The MC is in the same relative position as with the vacuum booster, but it looks so much cleaner. The plumbing will be pretty clean too, since its so close to the steering rack.

91z24 · Posted: Sun Oct 05, 2008 10:47 pm Post subject:

Looking good. Just one question: The point of doing that is ? Just for cleaner looks or help with stoping power too ?

cobra17st · Posted: Mon Oct 06, 2008 7:20 am Post subject:

joelallenclear · Posted: Mon Oct 06, 2008 8:59 am Post subject:

Woooow! This is a sick idea! Let us know how it feels

barrok69 · Posted: Mon Oct 06, 2008 11:04 am Post subject:

Interesting to see What noticeable differences you'll see with this swap. The pedal feel will definitely be different.

troublesomez24racing · Posted: Mon Oct 06, 2008 7:15 pm Post subject:

This wil be one of my next mmods if it works out well. The brakes are still not where I'd like them to be with the STS swap

cahilj · Posted: Mon Oct 06, 2008 8:30 pm Post subject:

The top two reasons I did this- to get rid of the humongus vacuum booster, and the "originality" factor. I don't see there being too much of a pedal feel difference, maybe a bit quicker brake reaction. Most of what I've read from guys who have done it (mostly S-10s, and trail vehicles), say it feels like stock, but takes up alot less space. I could see it being beneficial if you had some really rough idle from a cam and didn't draw much vacuum at idle. But how often are you slamming on the brakes at idle? I may look into changing out the piston, or increasing the inlet pressure to see what happens, but I think it might be overkill on this size car.

I may get really creative and move the entire booster towards the strut tower and use a bellcrank/shaft to operate the piston. I don't know yet.

BTW- the 2.2 is out

cavi_rs_94 · Posted: Mon Oct 06, 2008 9:00 pm Post subject:

nice work james

scott0999 · Posted: Mon Oct 06, 2008 9:17 pm Post subject:

man you sure are creative with this stuff

hope it works good for you

chris88cl · Posted: Mon Oct 06, 2008 10:39 pm Post subject:

Im lovin it!

Im new to these setups, so bare with me. Are there any other components? Or just the booster and master cylinder?

Im assuming the threaded line fittings are different too but that's easy enough to change.

This might be just what I need on my Z26 to give me more room for the wastegate/downpipe. I got 3" in there but it's very very tight and my wastegate is very close to the master cylinder.

I'll definately be keeping an eye on this thread. Make sure you share all the info once you are done

treeZ24 · Posted: Mon Oct 06, 2008 10:59 pm Post subject:

very nice!

i always wanted to do that but the astro van i have still works

the brakes always felt much nicer on the van though then the cavy. never realized it was through the power steering though, i thought it was a seperate pump.

didnt like the idea of manual brakes?

cahilj · Posted: Tue Oct 07, 2008 10:10 am Post subject:

troublesomez24racing · Posted: Tue Oct 07, 2008 12:43 pm Post subject:

I've driven Astro Vans with this brake setup and I loved the feel of the brakes. Very snappy and a nice initial bite. I think this setup on a Cavalier would be amazing. I work at a powdercoater, have a welder, and a junkyard around the corner. I'm liking the idea that much.

Cahil, Any idea on the working pressure of the Astro pump vs. the J pump?

zmods · Posted: Tue Oct 07, 2008 1:54 pm Post subject:

cahilj · Posted: Wed Oct 08, 2008 8:16 pm Post subject:

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