HOW TO DO AN ADVANCED SEARCH.

Mon Jul 08, 2013 3:56 pm by Admin


For the benefit of 944Hybrids users there are two search functions available for you to use.
The purpose of this sticky is to explain the "Advanced Search" function because it is much more powerful and is the best choice when researching information.

When you log on to the site a list of options is shown in a line at the top of the page. One option is labelled "Search", use this option (NOT the search box lower down on the right).

After you click on the upper search option, a drop down box appears. At the bottom of this box is a radio button marked "Advanced …

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BOOSTER DELETE

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Re: BOOSTER DELETE

Post  turbobob924 on Tue Jun 16, 2009 4:48 pm

I have the GM hydroboost in my car. It is pretty long.

I also have a Mustang Cobra one as a backup. Pretty much the same.

I would think the BMW ones are similar but much more expensive to replace?
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Re: BOOSTER DELETE

Post  Dawgz83948 on Tue Jun 16, 2009 5:31 pm

turbobob924 wrote:I have the GM hydroboost in my car. It is pretty long.

I also have a Mustang Cobra one as a backup. Pretty much the same.

I would think the BMW ones are similar but much more expensive to replace?

The boosters are about $200 rebuilt from Kragens Lifetime warranty. Not too bad.
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Re: BOOSTER DELETE

Post  xschop on Wed Jun 17, 2009 9:43 am

After talking with Greg, I am beginning to lean towards the direction of a Dual MC setup. And also Coctostan got me thinking about it also with his post. I would think a Dual MC setup that is turned on it's side for more valve cover clearance would be trick!
Hydroboost would be nice and not too dificult to do, but I am also thinking that the least amount of high pressure lines I have in the bay, the less I'll worry about a breakdown.
Could just 1 reservoir supply the fluid to both MC's and the Clutch MC? I would think so with some T fittings.
Also can the stock pedal fulcrum setup work just fine with Dual MC's......PORH and POPP
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Re: BOOSTER DELETE

Post  Tetzuoe on Wed Jun 17, 2009 11:29 am

I have some info going about hydroboosting systems in the other forum thread, right now im collecting parts to do a 964/993 carerra 4 hydroboost system, this uses an electric pump off the brake fluid reservoir. The parts are a bit tough to find and can be INSANELY expensive, ill post pics when I start getting it together.
My logic was the same as you xschop, too many high pressure lines, this system lets me run a hard line from the fender over to the booster.
Im also going to do power steering through a toyota MR2 (gen 2) power steering pump.
that way I can fire up the systems independantly and make sure they work before starting the motor.

man, this forum is WIDE.


Last edited by Tetzuoe on Mon Jun 22, 2009 9:23 am; edited 1 time in total
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Re: BOOSTER DELETE

Post  Admin on Wed Jun 17, 2009 2:32 pm

Sorry

Dawgz83948
I had to remove the pic. It WAS HUGE, try to down size it a little and re post it. Thanks

I am not trying to censor this just trying to save a little memory space. We have received a few donations to help with the memory space.

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Re: BOOSTER DELETE

Post  948 on Thu Jun 18, 2009 11:33 am

xschop wrote:After talking with Greg, I am beginning to lean towards the direction of a Dual MC setup. And also Coctostan got me thinking about it also with his post. I would think a Dual MC setup that is turned on it's side for more valve cover clearance would be trick!
Hydroboost would be nice and not too dificult to do, but I am also thinking that the least amount of high pressure lines I have in the bay, the less I'll worry about a breakdown.
Could just 1 reservoir supply the fluid to both MC's and the Clutch MC? I would think so with some T fittings.
Also can the stock pedal fulcrum setup work just fine with Dual MC's......PORH and POPP

I could help out here if you want to develop a dual MC set-up.....see my last post on PHB http://www.porschehybrids.com/php/viewtopic.php?p=30970#p30970
You have PM
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Re: BOOSTER DELETE

Post  944-LT1 on Thu Jun 18, 2009 6:01 pm

Paul.....waiting for your design! Patiently! Waiting! Laughing
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Version 1.0

Post  xschop on Fri Jun 19, 2009 11:09 am

Thanks to Msmoorenberg for the loaner.This is a simple low cost solution to delete the Vacuum Booster and get you on the road...........
I will Mic everything out and post shortly.
This custom plate and pushrod sets the stock 944NA master cylinder up wards for more valve cover clearance using the 944 "cereal-bowl". I don't have a Turbo Master On hand, but if the MC mount bolt locations are different, it would be a simple change of the spreadwidth to accomodate.....PORH
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Single MC booster delete dims

Post  xschop on Fri Jun 19, 2009 11:54 am

If you want even more clearance room near your valve cover, looks like you can shorten the pushrod length by the depth of the "cereal bowl" and make a plate with the three cereal-bowl bolt hole dimensions.....Nuttin to it.....
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Who dat part...

Post  gt1scca on Fri Jun 19, 2009 12:15 pm

Hey xs,
Is that part Trademarked or Patented?

HaHaHaHaHa! ________________________


Last edited by gt1scca on Fri Aug 21, 2009 1:45 am; edited 1 time in total

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PORH

Post  xschop on Fri Jun 19, 2009 12:21 pm

Sue me!
PORH Razz Razz Razz Razz Razz Razz Razz Razz Razz Razz Razz Razz Razz Razz Razz Razz Razz Razz Razz Razz Razz Razz Razz Razz Razz Razz Razz Razz Razz Razz Razz Razz Razz Razz Razz Razz Razz Razz Razz Razz Razz Razz Razz Razz Razz Razz Razz Razz Razz Razz Razz Razz Razz Razz Razz Razz Razz Razz Razz Razz Razz Razz Razz Razz Razz Razz Razz ....... pirat
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Re: BOOSTER DELETE

Post  Tetzuoe on Fri Jun 19, 2009 12:45 pm

farao
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Re: BOOSTER DELETE

Post  gt1scca on Fri Jun 19, 2009 1:39 pm

xschop wrote:If you want even more clearance room near your valve cover, looks like you can shorten the pushrod length by the depth of the "cereal bowl" and make a plate with the three cereal-bowl bolt hole dimensions.....
You will also need to relocate the mounting point on the pedal, 3/4" up...to maintain pushrod to MC alignment. Otherwise, you'll bind the master cylinder plunger.

(The pedal assembly can be drilled to accommodate the new mounting position.)

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Re: BOOSTER DELETE

Post  944-LT1 on Fri Jun 19, 2009 3:57 pm

(The pedal assembly can be drilled to accommodate the new mounting position.)

I drilled and bushed my pedal. I believe the early pedals are solid and the late are hollow?? That may be reversed but there are 2 different versions of the pedal. I say both outta be bushed after drilling. Very Happy
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Re: BOOSTER DELETE

Post  gt1scca on Fri Jun 19, 2009 5:29 pm

Thanks MK...forgot about the hollow pedal arm. Also, if the adapter plate and modified push rod are used, the most viable master cylinder to date is the Wilwood 260-7563 cylinder.

(originally posted by expuppy on PHB...)
The Wilwood 260-7563 cylinder is installed on the 944 using a 3/16 inch stainless plate that replaces the 3-dimensional cereal bowl. A stainless steel yoke that mounts to the 944 pedal assembly and is threaded for the Wilwood brake rod will need to be fabricated. A proportioning valve to dial down the pressure for the rears also will be needed. You will also have to use a union to tie your two front lines together.

The master cylinder pushrod is installed at a higher-than-stock location on the pedal to obtain a 5:1 pedal ratio. The downside is making the custom mounting plate out of stainless steel. The manual setup provides excellent pedal feel for on and off the track.

Mount the master cylinder in the plate so that the rod from the pedal will be level (horizontal). This will insure proper alignment with no binding.

The individual reservoirs are mounted on top of the master cylinder, and a Honda 1000 motorcycle brake reservoir is mounted to the firewall to supply fluid to the clutch cylinder.

NOTE: On the 944 / LSX conversions, the two rearmost driver’s side coils will need to be relocated to the fender well for clearance.

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Hydro brakes

Post  Planeflyer4u on Fri Jun 19, 2009 10:02 pm

I just installed a Ford Hydro Booster from a Mustang in my LT1 powered 968 and seems to be working very well, clearance on valve covers etc very good, Ill post pics if anyone would like , it was mounted in less than 2 hrs using the factory mount minus the fixed studs, Im using the stock GM pump and power steering rack from the Porsche ,total cost including purchase of the lines approx 175.00.....

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Re: BOOSTER DELETE

Post  xschop on Fri Jun 19, 2009 10:09 pm

http://www.wilwood.com/PDF/ds439.pdf

What if this were mounted 30* away from valve cover? Or 1 inch to the left. It is onlt 2" wide so it already is a decent valve cover clearance.
I'm curious which MC we would need for the Lexus 4x42mm calipers up front and Turbo rears (or equivalent)......
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Re: BOOSTER DELETE

Post  gt1scca on Fri Jun 19, 2009 10:35 pm

The LS430 4 x 42mm pistons have slightly more (8sq. mm) than the 996 / GT3 (Big Reds). The GT3 master cylinder has a 25.4mm (1.0") front circuit bore. The GT3 rear piston surface area comes in at 116sq. mm, the SAME as the FRONT 944 Turbo (which may be moved to the rear).

NOW...the GT3 rear MC circuit uses a 25.4mm (1.0") bore, BUT the 944T front circuit is supplied by a meager .75" piston bore.

I would use a 1" bore MC for the front, and a .75" bore MC on the rear circuit.

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Re: BOOSTER DELETE

Post  xschop on Mon Jun 22, 2009 5:15 am

POPP....Stick on the LS430 4x42mm calps to the rear also and get 2ea 1" bore MC's and then call it a day after adjusting the balance bar 60-40?
Am I on track or on crack?
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Re: BOOSTER DELETE

Post  gt1scca on Mon Jun 22, 2009 5:59 am

...BOTH. Razz Razz Razz

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Re: BOOSTER DELETE

Post  Tetzuoe on Mon Jun 22, 2009 9:13 am

xschop wrote:Am I on track or on crack?
bounce bounce bounce bounce
wheres all this gonna fit? looks like an awesome setup though
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Re: BOOSTER DELETE

Post  Dawgz83948 on Mon Jun 22, 2009 9:44 am

Admin wrote:Sorry

Dawgz83948
I had to remove the pic. It WAS HUGE, try to down size it a little and re post it. Thanks

I am not trying to censor this just trying to save a little memory space. We have received a few donations to help with the memory space.

Sorry. Hows this.... You big censorer you..... Very Happy
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Re: BOOSTER DELETE

Post  Tetzuoe on Mon Jun 22, 2009 11:33 am

I ran across a diagram while looking for accumulators:
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Re: BOOSTER DELETE

Post  xschop on Mon Jun 22, 2009 3:31 pm

Tetzuoe wrote:
xschop wrote:Am I on track or on crack?
bounce bounce bounce bounce
wheres all this gonna fit? looks like an awesome setup though

Are you joking here?.....The setup will not have any of the hydroboost related lines, reservoir, nor the horsepower robbing pump. Judging by the dimensions given from Tilton, I will not even have to relocate the rear coil!
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Re: BOOSTER DELETE

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